Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    3420A Search Results

    3420A Result Highlights (1)

    Part ECAD Model Manufacturer Description Download Buy
    LM3420AM5-8.4/NOPB Texas Instruments Lithium-Ion Battery Charge Controller 5-SOT-23 -40 to 125 Visit Texas Instruments Buy
    SF Impression Pixel

    3420A Price and Stock

    Analog Devices Inc ADR3420ARJZ-R7

    IC VREF SERIES 0.1% SOT23-6
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey ADR3420ARJZ-R7 Digi-Reel 3,567 1
    • 1 $4.34
    • 10 $2.871
    • 100 $2.06
    • 1000 $1.61883
    • 10000 $1.61883
    		Buy Now
    ADR3420ARJZ-R7 Cut Tape 3,567 1
    • 1 $4.34
    • 10 $2.871
    • 100 $2.06
    • 1000 $1.61883
    • 10000 $1.61883
    		Buy Now
    ADR3420ARJZ-R7 Reel 3,000 3,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $1.425
    		Buy Now
    Mouser Electronics ADR3420ARJZ-R7 4,570
    • 1 $3.45
    • 10 $2.4
    • 100 $2.06
    • 1000 $1.61
    • 10000 $1.42
    		Buy Now
    Newark ADR3420ARJZ-R7 Cut Tape 5,373 1
    • 1 $1.31
    • 10 $1.31
    • 100 $1.31
    • 1000 $1.31
    • 10000 $1.31
    		Buy Now
    Analog Devices Inc ADR3420ARJZ-R7 3,000 3,000
    • 1 $4.34
    • 10 $2.871
    • 100 $2.06
    • 1000 $1.61883
    • 10000 $1.425
    		Buy Now
    Ameya Holding Limited ADR3420ARJZ-R7 5,951
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Win Source Electronics ADR3420ARJZ-R7 5,650
    • 1 -
    • 10 -
    • 100 $1.7709
    • 1000 $1.4853
    • 10000 $1.4853
    		Buy Now

    Texas Instruments LM3420AM5-8.4-NOPB

    IC BATT CNTL LI-ION 2CEL SOT23-5
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey LM3420AM5-8.4-NOPB Digi-Reel 2,550 1
    • 1 $6.91
    • 10 $5.326
    • 100 $4.4937
    • 1000 $4.16052
    • 10000 $4.16052
    		Buy Now
    LM3420AM5-8.4-NOPB Cut Tape 2,550 1
    • 1 $6.91
    • 10 $5.326
    • 100 $4.4937
    • 1000 $4.16052
    • 10000 $4.16052
    		Buy Now
    LM3420AM5-8.4-NOPB Reel 2,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $3.66625
    • 10000 $3.66625
    		Buy Now

    Bourns Inc PTV111-3420A-B103

    POT 10K OHM 1/20W CARBON LINEAR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PTV111-3420A-B103 Tray 1,854 1
    • 1 $1.78
    • 10 $1.427
    • 100 $1.1446
    • 1000 $0.9157
    • 10000 $0.7832
    		Buy Now
    Mouser Electronics PTV111-3420A-B103 753
    • 1 $1.37
    • 10 $1.05
    • 100 $0.878
    • 1000 $0.81
    • 10000 $0.783
    		Buy Now
    Newark PTV111-3420A-B103 Bulk 45 1
    • 1 $1.3
    • 10 $1.01
    • 100 $0.921
    • 1000 $0.799
    • 10000 $0.799
    		Buy Now
    Onlinecomponents.com PTV111-3420A-B103 16
    • 1 $1.045
    • 10 $1.045
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now
    TTI PTV111-3420A-B103 Kit 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.69
    • 10000 $0.65
    		Buy Now
    TME PTV111-3420A-B103 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $1.06
    • 10000 $1.06
    		Get Quote
    Avnet Abacus PTV111-3420A-B103 17 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Master Electronics PTV111-3420A-B103 16
    • 1 $1.045
    • 10 $1.045
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now

    Bourns Inc PTV111-3420A-B504

    POT 500K OHM 1/20W CARBON LINEAR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PTV111-3420A-B504 Tray 1,000 1
    • 1 $1.78
    • 10 $1.427
    • 100 $1.1446
    • 1000 $0.9157
    • 10000 $0.7832
    		Buy Now
    Avnet Americas PTV111-3420A-B504 Tray 14 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.70148
    • 10000 $0.6422
    		Buy Now
    Mouser Electronics PTV111-3420A-B504 949
    • 1 $1.74
    • 10 $1.25
    • 100 $1.02
    • 1000 $0.896
    • 10000 $0.741
    		Buy Now
    Onlinecomponents.com PTV111-3420A-B504
    • 1 -
    • 10 -
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now
    Master Electronics PTV111-3420A-B504
    • 1 -
    • 10 -
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now

    Bourns Inc PTV111-3420A-B203

    POT 20K OHM 1/20W CARBON LINEAR
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey PTV111-3420A-B203 Tray 995 1
    • 1 $1.78
    • 10 $1.427
    • 100 $1.1446
    • 1000 $0.9157
    • 10000 $0.7832
    		Buy Now
    Avnet Americas PTV111-3420A-B203 Tray 14 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.70148
    • 10000 $0.6422
    		Buy Now
    Mouser Electronics PTV111-3420A-B203 943
    • 1 $1.74
    • 10 $1.25
    • 100 $1.02
    • 1000 $0.862
    • 10000 $0.731
    		Buy Now
    Onlinecomponents.com PTV111-3420A-B203
    • 1 -
    • 10 -
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now
    Master Electronics PTV111-3420A-B203
    • 1 -
    • 10 -
    • 100 $0.95
    • 1000 $0.716
    • 10000 $0.638
    		Buy Now
    Find more 3420A price and stock on Findchips.com

    3420A Datasheets (14)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    3420-A Brady Worldwide B498 N&L BLK/YEL 3420-A Original PDF
    3420-A-1032-AL RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN ALUMINUM Original PDF
    3420-A-1032-B RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN BRASS3/8 Original PDF
    3420-A-1032-S RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STEEL3/8 Original PDF
    3420-A-1032-SS RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STAINLES Original PDF
    3420-A-632-AL RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN ALUMINUM Original PDF
    3420-A-632-B RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN BRASS3/8 Original PDF
    3420-A-632-S RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STEEL3/8 Original PDF
    3420-A-632-SS RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STAINLES Original PDF
    3420-A-832-AL RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN ALUMINUM Original PDF
    3420-A-832-B RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN BRASS3/8 Original PDF
    3420-A-832-S RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STEEL3/8 Original PDF
    3420-A-832-SS RAF Electronic Hardware HEX SWAGE STANDOFFPLAIN STAINLES Original PDF
    3420-ARO Brady Worldwide B498 N&L BLK/YEL 3420-ARO Original PDF

    3420A Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    Tedea-Huntleigh model 3510

    Abstract: Tedea-Huntleigh* 355
    Text: Model CellMate Tedea-Huntleigh LoadCell CellMounting Mounting Assembly Assembly for Load for Models Models355, 355,3410, 3410,3420 3420and and3510 3510 FEATURES • Simplifies load cell installation on tanks, silos, and other weighing vessels • 3 models suitable for load cell Models 3510, 3410,


    Original     		PDF 27-Apr-2011 Tedea-Huntleigh model 3510 Tedea-Huntleigh* 355

    3420G

    Abstract: BTR-3420-SPG GR-253-CORE IEC-60825 BTR-3420AG BTR-3420A-SPG BTR-3420G
    Text: Optoway BTR-3420G 1 * BTR-3420G / BTR-3420-SPG / BTR-3420AG / BTR-3420A-SPG 1310 nm TX / 1550 nm RX , 5V / 155 Mbps RoHS Compliant Single-Fiber Transceiver


    Original     		PDF BTR-3420G BTR-3420G BTR-3420-SPG BTR-3420AG BTR-3420A-SPG BTR-3420AG BTR-3420-SP50G BTR-3420A-SP50G 3420G GR-253-CORE IEC-60825 BTR-3420A-SPG

    GR-253-CORE

    Abstract: IEC-60825
    Text: Optoway BTR-3420 / BTR-3420A * BTR-3420 / BTR-3420-SP / BTR-3420A / BTR-3420A-SP 1310 nm TX / 1550 nm RX , 5V / 155 Mbps Single-Fiber Transceiver


    Original     		PDF BTR-3420 BTR-3420A BTR-3420-SP BTR-3420A BTR-3420A-SP BTR-3420-SP50 BTR-3420A-SP50 GR-253-CORE IEC-60825

    Untitled

    Abstract: No abstract text available
    Text: IPT and IPT SE Bayonet-Lock Connectors High-Density MIL-C-26482 Type Connectors—VG95328 Qualified for Rugged Military and Industrial Applications United States  United Kingdom  Germany  France  Nordic  Italy  Spain  Japan The Space Shuttle Orbiter escapes earth


    Original     		PDF MIL-C-26482 VG95328

    Untitled

    Abstract: No abstract text available
    Text: IPT Bayonet Lock Connector Accessories IT 3420 and IT 3420-A Neoprene Sleeve IT 3420-3A MIL-C-26482 Accessory C B Basic Part Number and Shell Size A TABLE I: CLASS A CABLE CLAMPS Codice Commital A B C L Commital P/N ±0.1 ±0.1 ±0.1 ±0.1 IT3420 - 3 9.5 5.33


    Original     		PDF 420-A 420-3A MIL-C-26482 IT3420

    PC06E

    Abstract: PCSE style PC00C-XX-XXX MS3471 MS3476 tool PT00CE-20-41PW PC02C-XX-XXX 534-834 MS3474 PT/MS Amphenol
    Text: Amphenol Miniature Cylindrical Connectors 12-070-14 Meets MIL-C-26482, Series 1 Specifications Amphenol PT-CE, SP-CE how to order PT-CE, SP-CE To more easily illustrate ordering procedure, part number PT00CE-20-41PW SR is shown as follows: PT 00 1 2 CE – 20 – 41


    Original     		PDF MIL-C-26482, PT00CE-20-41PW PC06E PCSE style PC00C-XX-XXX MS3471 MS3476 tool PT00CE-20-41PW PC02C-XX-XXX 534-834 MS3474 PT/MS Amphenol

    Untitled

    Abstract: No abstract text available
    Text: Amphenol PT, SP, MS/PT Proprietary/MIL-C-26482, Series 1 bayonet coupling and solder termination Amphenol® solder contact miniature cylindrical connectors meet the most critical application needs. Design versatility combined with high reliability performance makes these


    Original     		PDF Proprietary/MIL-C-26482, MIL-C-26482, MS3057

    auto cut off schematic diagram 48v battery charge

    Abstract: j85501a-2 mcs controller thyristor battery charger 24v 100a schematic drawing sd83102-03 sd-82588-02 SD8258 Battery charger 48 volt forklift forklift battery charger circuit FLUKE 8060a manual LUCENT LINEAGE
    Text: Lineage 2000 400-Ampere, 50-Hertz Ferroresonant Rectifier J85603C-2 Product Manual Select Code 169-791-113 Comcode 107100828 Issue 7 March 1999 1999 Lucent Technologies Product Manual Select Code 169-791-113 Comcode 107100828 Issue 7 March 1999 Lucent Technologies


    Original     		PDF 400-Ampere, 50-Hertz J85603C-2 auto cut off schematic diagram 48v battery charge j85501a-2 mcs controller thyristor battery charger 24v 100a schematic drawing sd83102-03 sd-82588-02 SD8258 Battery charger 48 volt forklift forklift battery charger circuit FLUKE 8060a manual LUCENT LINEAGE

    auto cut off schematic diagram 48v battery charge

    Abstract: thyristor battery charger 24v 100a LUCENT LINEAGE J85503B-2 J85503C3 L3 J85503C rectifier j85501a-2 mcs controller LUCENT LINEAGE 2000 J85503C3 Battery charger 48 volt forklift
    Text: Lineage 2000 200-Ampere, 60-Hertz Ferroresonant Rectifier J85503B-2 Product Manual Select Code 169-790-128 Comcode 107666356 Issue 8 January 1999 1999 Lucent Technologies Product Manual J85503B-2 Select Code 169-790-128 Comcode 107666356 Issue 8 January 1999


    Original     		PDF 200-Ampere, 60-Hertz J85503B-2 auto cut off schematic diagram 48v battery charge thyristor battery charger 24v 100a LUCENT LINEAGE J85503B-2 J85503C3 L3 J85503C rectifier j85501a-2 mcs controller LUCENT LINEAGE 2000 J85503C3 Battery charger 48 volt forklift

    olive drab corrosion resistance

    Abstract: 348 pins plug connector MIL-C-26482 93c46li Amphenol TP transistor w 431 MS3110p SP 1848 military connector cross reference MS3110
    Text: Amphenol PT, SP, MS/PT Proprietary/MIL-C-26482, Series 1 bayonet coupling and solder termination Amphenol® solder contact miniature cylindrical connectors meet the most critical application needs. Design versatility combined with high reliability performance makes these


    Original     		PDF Proprietary/MIL-C-26482, MIL-C-26482, PT00SE-2041PW olive drab corrosion resistance 348 pins plug connector MIL-C-26482 93c46li Amphenol TP transistor w 431 MS3110p SP 1848 military connector cross reference MS3110

    E115497

    Abstract: MS3112 pt02c-xx-xxx MS CONNECTORS SP02 MIL-C-26482 PIN CONTACT ARRANGEMENT MS311 MS3112E MS3112P-XX-XXX
    Text: Amphenol PT, SP, MS/PT Proprietary/MIL-C-26482, Series 1 bayonet coupling and solder termination Amphenol® solder contact miniature cylindrical connectors meet the most critical application needs. Design versatility combined with high reliability performance makes these


    Original     		PDF Proprietary/MIL-C-26482, MIL-C-26482, PT00SE-2041PW E115497 MS3112 pt02c-xx-xxx MS CONNECTORS SP02 MIL-C-26482 PIN CONTACT ARRANGEMENT MS311 MS3112E MS3112P-XX-XXX

    Commital IPT

    Abstract: Glenair ipt backshell STRAIGHT ipt06a IPT02A BACKSHELL A-18 A-20 IPT07A Glenair 06324 MS3057
    Text: IPT Bayonet Lock Connectors Glenair IPT SE and IPT Series Product Index Series IPT SE IPT SE Overview and Technical How To Order - Part Number


    Original     		PDF 10-101949-S Commital IPT Glenair ipt backshell STRAIGHT ipt06a IPT02A BACKSHELL A-18 A-20 IPT07A Glenair 06324 MS3057

    veam vpt

    Abstract: Connectors-VG95328 VG95328 ipt06a VG95328 22-55 pin BS9522 VG-95328 grommet connector vg95328 M.105007 ms-3057 6c
    Text: IPT and IPT SE Bayonet-Lock Connectors High-Density MIL-C-26482 Type Connectors—VG95328 Qualified for Rugged Military and Industrial Applications United States  United Kingdom  Germany  France  Nordic  Italy  Spain  Japan The Space Shuttle Orbiter escapes earth


    Original     		PDF MIL-C-26482 Connectors--VG95328 veam vpt Connectors-VG95328 VG95328 ipt06a VG95328 22-55 pin BS9522 VG-95328 grommet connector vg95328 M.105007 ms-3057 6c

    connettore Commital

    Abstract: M.105007 60720-15P grommet connector M.112004 NFF-61030 M36x1 wz-240 M.105000 VG95234
    Text: Indice - Contents Pagina / Page 2 2 Generalità - General description Caratteristiche tecniche - Technical characteristics Contatti a crimpare e coassiali - Crimp & coaxial contacts 4 5 6 7 8 9 Contatti maschio - Pin contacts Contatti femmina - Socket contacts


    Original     		PDF UNI4883 UNI4883 057-A 057-A 3057-C 3057-C connettore Commital M.105007 60720-15P grommet connector M.112004 NFF-61030 M36x1 wz-240 M.105000 VG95234

    12-070

    Abstract: 10-189000-20f MS3114H-XXCXXX MS3116 INSTRUCTIONS 10-597817-351 l-786 INSTRUCTIONS raychem JOINT procedure KIT PTG06SE PC06-CE BENDIX PT02
    Text: Amphenol Miniature Cylindrical Connectors 12-070-15 Meets MIL-C-26482, Series 1 Specifications Amphenol Corporation Amphenol Industrial Operations Amphenol Aerospace 40-60 Delaware Avenue, Sidney, New York 13838-1395 Phone: 800-678-0141 or 607-563-5011 Fax: 607-563-5157


    Original     		PDF MIL-C-26482, MIL-C-26482 MIL-DTL-38999 MIL-C-26482 12-070 10-189000-20f MS3114H-XXCXXX MS3116 INSTRUCTIONS 10-597817-351 l-786 INSTRUCTIONS raychem JOINT procedure KIT PTG06SE PC06-CE BENDIX PT02

    ITT CANNON CGE

    Abstract: 10-314980-20P 10-314980 amphenol 38999 8-32 bd hd Glenair 06324 37 Pin Plug connector 1770
    Text: IPT and IPT SE Bayonet-Lock Connectors High-Density MIL-C-26482 Type Connectors—VG95328 Qualified for Rugged Military and Industrial Applications United States  United Kingdom  Germany  France  Nordic  Italy  Spain  Japan The Space Shuttle Orbiter escapes earth


    Original     		PDF MIL-C-26482 Connectors--VG95328 D-61449 ITT CANNON CGE 10-314980-20P 10-314980 amphenol 38999 8-32 bd hd Glenair 06324 37 Pin Plug connector 1770

    ARM 7 processor pin configuration

    Abstract: AT43CD001 AT43USB370 AT43USB380
    Text: Description The AT43USB380 is a straightforward upgrade of the AT43USB370 Host/Function Processor to support the USB 2.0 On-The-Go OTG specification. It can operate either as a single-chip Host/Function Processor or if used in conjunction with an external Atmel Charge Pump, as a full OTG solution.


    Original     		PDF AT43USB380 AT43USB370 AT43USB370 AT43USB380. 3420AS ARM 7 processor pin configuration AT43CD001

    black zinc cobalt (027) plating

    Abstract: black zinc cobalt 027 plating SP 1191 93c46li Amphenol 973106a Circular Connectors MS-311 2 PIN MS CONNECTORS MIL-C-26482 military connector cross reference PT08
    Text: Amphenol PT, SP, MS/PT Proprietary/MIL-C-26482, Series 1 bayonet coupling and solder termination Amphenol® solder contact miniature cylindrical connectors meet the most critical application needs. Design versatility combined with high reliability performance makes these


    Original     		PDF Proprietary/MIL-C-26482, MIL-C-26482, black zinc cobalt (027) plating black zinc cobalt 027 plating SP 1191 93c46li Amphenol 973106a Circular Connectors MS-311 2 PIN MS CONNECTORS MIL-C-26482 military connector cross reference PT08

    Untitled

    Abstract: No abstract text available
    Text: Amphenol PC, PC-SE*, PC-CE* solder and crimp type Amphenol® PC Series threaded coupling miniature cylindrical connectors are offered with solder contacts PC or crimp contacts (PC-SE) and (PC-CE) versions. The “SE” type utilizes a spring tower retention system


    OCR Scan     		PDF QQ-P-416

    Untitled

    Abstract: No abstract text available
    Text: iEI HARRIS \^ 3 Operational Amplifiers S E M I C O N D U C T O R HARRIS RCA GE 3420A, CA3420 INTERSIL May 1990 Low-Supply Voltage, Low-Input Current BiMOS Operational Amplifiers F e a tu r e s : A p p lic a tio n s : m 2 V s u p p ly a t 3 0 0 \jA s u p p ly c u r re n t


    OCR Scan     		PDF CA3420A, CA3420

    transistor 2sC 4242

    Abstract: lm338 application notes ir sensing circuit using LM358 transistor 2n22 charging circuit lm317 lm350 LM317 CURRENT LIMIT
    Text: Semiconductor LM3420-4.2, -8.2, -8.4, -12.6, -16.8 Lithium-Ion Battery Charge Controller General Description The LM3420 series of controllers are monolithic integrated circuits designed for charging and end-Of-charge control for Lithium-Ion rechargeable batteries. The LM3420 is available


    OCR Scan     		PDF LM3420-4 LM3420 transistor 2sC 4242 lm338 application notes ir sensing circuit using LM358 transistor 2n22 charging circuit lm317 lm350 LM317 CURRENT LIMIT

    amphenol series 1 26482 ARRANGEMENT

    Abstract: No abstract text available
    Text: Amphenol PT, SP, MS/PT Proprietary/MIL-C-26482, Series 1 solder type Amphenol® solder contact miniature cylindrical connectors meet the most critical application needs. Design versatility combined with high reliability performance makes these series of Miniature Cylindrical Connectors ideal for envi­


    OCR Scan     		PDF Proprietary/MIL-C-26482, MIL-C-26482, amphenol series 1 26482 ARRANGEMENT

    LM 8105

    Abstract: SD318 AN6610 5354A B1134 SE773 CPL-2503 B1133 SE158 6363t
    Text: [•a OPTOELECTRONICS P art N um ber PART NUM BER INDEX Page P art N um ber Page P art N um ber Page P art N um ber Page P art Num ber 1N6264 37 C N Y17F-3 13 G M A 8975 C 144 H11D4 14 H CPL-2730 1N6265 37 C N Y17F-4 13 G M C 2275 C 148 H11F1 20 Page _ 17


    OCR Scan     		PDF 1N6264 1N6265 1N6266 6N135 6N136 6N137 6N138 6N139 740L6001 740L6010 LM 8105 SD318 AN6610 5354A B1134 SE773 CPL-2503 B1133 SE158 6363t

    Battery charger lm317

    Abstract: IC LM317 use in 12v charger circuit charger hp sot23-5 marking ha marking D02A schematic diagram 12V battery charger regulator LM555 LM317 sot23 LM338 LM338 NATIONAL SILICON
    Text: A pril 1998 LM3420-4.2, -8.2, -8.4, -12.6, -16.8 Lithium-Ion Battery Charge Controller The LM 3420 is available in a sub-m iniature 5-lead SO T23-5 surface m ount package thus allowing very com pact designs. General Description The LM 3420 series of controllers are m onolithic integrated


    OCR Scan     		PDF LM3420-4 LM3420 Battery charger lm317 IC LM317 use in 12v charger circuit charger hp sot23-5 marking ha marking D02A schematic diagram 12V battery charger regulator LM555 LM317 sot23 LM338 LM338 NATIONAL SILICON