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

    74AC245SC Search Results

    SF Impression Pixel

    74AC245SC Price and Stock

    onsemi 74AC245SCX

    IC TXRX NON-INVERT 6V 20SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 74AC245SCX Digi-Reel 2,970 1
    • 1 $1.77
    • 10 $1.087
    • 100 $0.7292
    • 1000 $0.58512
    • 10000 $0.58512
    		Buy Now
    74AC245SCX Cut Tape 2,970 1
    • 1 $1.77
    • 10 $1.087
    • 100 $0.7292
    • 1000 $0.58512
    • 10000 $0.58512
    		Buy Now
    74AC245SCX Reel 2,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.54022
    • 10000 $0.43981
    		Buy Now
    Avnet Americas 74AC245SCX Reel 2,000 12 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.32841
    • 10000 $0.29291
    		Buy Now
    Mouser Electronics 74AC245SCX 1,325
    • 1 $1.52
    • 10 $0.879
    • 100 $0.628
    • 1000 $0.498
    • 10000 $0.437
    		Buy Now
    Arrow Electronics 74AC245SCX 5,000 12 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.4921
    • 10000 $0.433
    		Buy Now
    74AC245SCX Cut Strips 1,787 12 Weeks 1
    • 1 $1.0502
    • 10 $0.7225
    • 100 $0.5577
    • 1000 $0.497
    • 10000 $0.497
    		Buy Now
    Newark 74AC245SCX Cut Tape 98 1
    • 1 $1.35
    • 10 $1.04
    • 100 $0.754
    • 1000 $0.617
    • 10000 $0.617
    		Buy Now
    74AC245SCX Reel 1,000
    • 1 $0.602
    • 10 $0.602
    • 100 $0.602
    • 1000 $0.602
    • 10000 $0.525
    		Buy Now
    74AC245SCX Reel 1,000
    • 1 $0.602
    • 10 $0.602
    • 100 $0.602
    • 1000 $0.602
    • 10000 $0.525
    		Buy Now
    Onlinecomponents.com 74AC245SCX
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.4726
    • 10000 $0.423
    		Buy Now
    Bristol Electronics 74AC245SCX 2
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Rochester Electronics 74AC245SCX 557 1
    • 1 $0.4857
    • 10 $0.4857
    • 100 $0.4566
    • 1000 $0.4128
    • 10000 $0.4128
    		Buy Now
    TME 74AC245SCX 1
    • 1 $1.114
    • 10 $0.701
    • 100 $0.512
    • 1000 $0.412
    • 10000 $0.375
    		Get Quote
    Avnet Silica 74AC245SCX 13 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    EBV Elektronik 74AC245SCX 14 Weeks 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now

    onsemi 74AC245SC

    IC TXRX NON-INVERT 6V 20SOIC
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey 74AC245SC Tube
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Buy Now
    Avnet Americas 74AC245SC Tube 494 950
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Arrow Electronics 74AC245SC 3 98 Weeks 1
    • 1 $0.2642
    • 10 $0.2642
    • 100 $0.2642
    • 1000 $0.2642
    • 10000 $0.2642
    		Buy Now
    Bristol Electronics 74AC245SC 439
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Rochester Electronics 74AC245SC 3,686 1
    • 1 $0.5221
    • 10 $0.5221
    • 100 $0.4908
    • 1000 $0.4438
    • 10000 $0.4438
    		Buy Now

    Aptina Imaging 74AC245SCX

    Bus XCVR Single 8-CH 3-ST 20-Pin SOIC W T/R
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Verical 74AC245SCX 5,000 1,000
    • 1 -
    • 10 -
    • 100 -
    • 1000 $0.4921
    • 10000 $0.433
    		Buy Now
    74AC245SCX 1,787 19
    • 1 -
    • 10 -
    • 100 $0.5577
    • 1000 $0.497
    • 10000 $0.497
    		Buy Now

    Fairchild Semiconductor Corporation 74AC245SC

    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics 74AC245SC 4,155
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    74AC245SC 350 10
    • 1 -
    • 10 $0.525
    • 100 $0.2625
    • 1000 $0.1575
    • 10000 $0.1575
    		Buy Now
    74AC245SC 89
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components 74AC245SC 376
    • 1 $1
    • 10 $1
    • 100 $0.45
    • 1000 $0.3
    • 10000 $0.3
    		Buy Now
    74AC245SC 280
    • 1 $0.7
    • 10 $0.7
    • 100 $0.21
    • 1000 $0.14
    • 10000 $0.14
    		Buy Now
    74AC245SC 162
    • 1 $0.3
    • 10 $0.3
    • 100 $0.2
    • 1000 $0.2
    • 10000 $0.2
    		Buy Now
    74AC245SC 80
    • 1 $1
    • 10 $0.8
    • 100 $0.45
    • 1000 $0.45
    • 10000 $0.45
    		Buy Now
    74AC245SC 53
    • 1 $0.685
    • 10 $0.548
    • 100 $0.3083
    • 1000 $0.3083
    • 10000 $0.3083
    		Buy Now
    74AC245SC 47
    • 1 $0.7
    • 10 $0.56
    • 100 $0.42
    • 1000 $0.42
    • 10000 $0.42
    		Buy Now
    Rochester Electronics 74AC245SC 70 1
    • 1 $0.5221
    • 10 $0.5221
    • 100 $0.4908
    • 1000 $0.4438
    • 10000 $0.4438
    		Buy Now
    ComSIT USA 74AC245SC 2,304
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    National Semiconductor Corporation 74AC245SC

    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    Bristol Electronics 74AC245SC 1,700 10
    • 1 -
    • 10 $0.525
    • 100 $0.2625
    • 1000 $0.105
    • 10000 $0.105
    		Buy Now
    74AC245SC 42
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Quest Components 74AC245SC 1,360
    • 1 $0.7
    • 10 $0.7
    • 100 $0.21
    • 1000 $0.14
    • 10000 $0.14
    		Buy Now
    74AC245SC 981
    • 1 $0.3
    • 10 $0.3
    • 100 $0.2
    • 1000 $0.16
    • 10000 $0.16
    		Buy Now
    74AC245SC 33
    • 1 $0.7
    • 10 $0.56
    • 100 $0.315
    • 1000 $0.315
    • 10000 $0.315
    		Buy Now
    Component Electronics, Inc 74AC245SC 446
    • 1 $1.54
    • 10 $1.54
    • 100 $1.15
    • 1000 $1
    • 10000 $1
    		Buy Now
    Find more 74AC245SC price and stock on Findchips.com

    74AC245SC Datasheets (10)

    Part ECAD Model Manufacturer Description Curated Datasheet Type PDF
    74AC245SC Fairchild Semiconductor IC BUS XCVR SINGLE 8CH 3-ST 20SOIC RAIL Original PDF
    74AC245SC Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/ Outputs; Package: SOIC-Wide; No of Pins: 20; Container: Rail Original PDF
    74AC245SC Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Original PDF
    74AC245SC National Semiconductor Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs Original PDF
    74AC245SC Unknown Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Historical PDF
    74AC245SC_NL Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/ Outputs Original PDF
    74AC245SCX Fairchild Semiconductor IC BUS XCVR SINGLE 8CH 3-ST 20SOIC T/R Original PDF
    74AC245SCX Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/ Outputs; Package: SOIC-Wide; No of Pins: 20; Container: Tape & Reel Original PDF
    74AC245SCX Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/ Outputs Original PDF
    74AC245SCX_NL Fairchild Semiconductor Octal Bidirectional Transceiver with 3-STATE Inputs/ Outputs Original PDF

    74AC245SC Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    74AC245

    Abstract: ACT245 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245 74ACT245SC 74ACT245SJ 74ACT245 NS
    Text: Revised November 1999 74AC245 • 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs General Description Features The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at


    Original     		PDF 74AC245 74ACT245 AC/ACT245 74AC245 ACT245 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245 74ACT245SC 74ACT245SJ 74ACT245 NS

    5555 FAIRCHILD optocoupler

    Abstract: MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N
    Text: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original     		PDF SCYB017A A010203 5555 FAIRCHILD optocoupler MC74HC374N 74hc14n equivalent NC7S125M5 14069 HCF4541BEY APPLICATION HCF4013BE 4026 fairchild datasheet 14543 motorola Motorola DM74LS139N

    schematic diagram atx Power supply 500w

    Abstract: pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 Digital Signal Processors, iCoupler , iMEMS® and iSensor . . . . . 805, 2707, 2768-2769 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-568 RF Connectors . . . . . . . . . . . . . . . . . . . . . . Pages 454-455


    Original     		PDF P462-ND P463-ND LNG295LFCP2U LNG395MFTP5U US2011) schematic diagram atx Power supply 500w pioneer PAL 012A 1000w inverter PURE SINE WAVE schematic diagram 600va numeric ups circuit diagrams winbond bios 25064 TLE 9180 infineon smsc MEC 1300 nu TBE schematic diagram inverter 2000w DK55 circuit diagram of luminous 600va UPS

    Arduino Mega2560

    Abstract: 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l
    Text: ND3% BASE1 XXXX2108-0010-1-P 10 TSQ: 3001 CMS: CMS-USM TS host OP: NN COMP: 15-07-11 Hour: 13:07 TS:TS date TS time MCUS, MPUS, DSPS & DEVELOPMENT TOOLS Find Datasheets Online 8-BIT MCUS & DEVELOPMENT TOOLS 1 PSoC 3 DEVELOPMENT KITS ARDUINO MCU DEVLOPMENT PLATFORM


    Original     		PDF CY8C38 CY8C29 incl795 12T9797 12T9804 12T9803 12T9800 12T9802 12T9801 12T9805 Arduino Mega2560 13001 S 6D TRANSISTOR arduino uno rev 3 agilent optical encoder 9988 MZ 13001 TRANSISTOR arduino mega 2650 skiip 613 gb 123 ct arduino sound sensor module pic arduino nano mc34063l

    74ACT245 FAIRCHILD

    Abstract: No abstract text available
    Text: 74AC245, 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Features General Description • ICC and IOZ reduced by 50% ■ Non-inverting buffers The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for


    Original     		PDF 74AC245, 74ACT245 AC/ACT245 74ACT245 74ACT245 FAIRCHILD

    74ACT245PC

    Abstract: 74AC245pc 74AC245MTC 74AC245SC 74AC245SJ 74ACT245SC AC245 ACT245 74ACT245 national
    Text: General Description Features The ’AC/’ACT245 contains eight non-inverting bidirectional buffers with TRI-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive T/R


    Original     		PDF ACT245 ds009944 74ACT245PC 74AC245pc 74AC245MTC 74AC245SC 74AC245SJ 74ACT245SC AC245 74ACT245 national

    74ACT245

    Abstract: 74AC245 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245SC 74ACT245SJ ACT245 74ACT245 fairchild
    Text: 74AC245, 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs Features General Description • ICC and IOZ reduced by 50% ■ Non-inverting buffers The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for


    Original     		PDF 74AC245, 74ACT245 AC/ACT245 74ACT245 74AC245 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245SC 74ACT245SJ ACT245 74ACT245 fairchild

    74AC245pc

    Abstract: ACT245 74AC245 74AC245MTC 74AC245SC 74AC245SJ 74ACT245 74ACT245SC 74ACT245SJ
    Text: Revised October 1998 74AC245 • 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs General Description The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at


    Original     		PDF 74AC245 74ACT245 AC/ACT245 74ACT245 74AC245pc ACT245 74AC245 74AC245MTC 74AC245SC 74AC245SJ 74ACT245SC 74ACT245SJ

    CD4558

    Abstract: NC7S125 MC74F138N HCF4541 Motorola MC74HC251N 74ACT161 DHVQFN-20 74V1G08 SOT323/5 HCF4017 SN74ACT14DR
    Text: Logic Cross-Reference Introduction This Logic Cross-Reference for Buyers, Distribution Specialists and others with an interest in Logic will assist in finding a device made by Texas Instruments that is identical or similar to many of our competitors’ Logic products.


    Original     		PDF 74ABT16244 A010203 53001cov SCYB017 CD4558 NC7S125 MC74F138N HCF4541 Motorola MC74HC251N 74ACT161 DHVQFN-20 74V1G08 SOT323/5 HCF4017 SN74ACT14DR

    74ls74apc

    Abstract: HD74ls04p 74LVC1G04ady8 semiconductor AZ431BZ-AE1 HCF4060BE HEF4093BP datasheet free download ne5334 hd74hc132p dm74ls47n
    Text: Standard Linear and Logic Products Cross-Reference Introduction Notice This Standard Linear and Logic Products CrossReference will assist in finding a device made by Texas Instruments that is a drop-in or similar replacement to many of our competitors’ standard linear and logic products.


    Original     		PDF

    MC0628R

    Abstract: 40373 74hc14n equivalent 4046 application note philips HCF4060BE HCF4017BE SN74121 application note MC74HC373DW mc0628 HCF4053BE
    Text: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original     		PDF SCYB017A T74ALVC32374 74CBTLV16211 SN74CBTD16211 SN74SSTV16859 SN74CBTLV16211GRDR SN74ALVC16245AGRDR -SN74SSTV16859GKER MC0628R 40373 74hc14n equivalent 4046 application note philips HCF4060BE HCF4017BE SN74121 application note MC74HC373DW mc0628 HCF4053BE

    220v AC voltage stabilizer schematic diagram

    Abstract: LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx
    Text: QUICK INDEX NEW IN THIS ISSUE! Detailed Index - See Pages 3-24 AD9272 Analog Front End, iMEMS Accelerometers & Gyroscopes . . . . . . 782, 2583 Connectors, Cable Assemblies, IC Sockets . . . . . . . . . . . 28-528 Acceleration and Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2585


    Original     		PDF AD9272 P462-ND LNG295LFCP2U P463-ND LNG395MFTP5U 220v AC voltage stabilizer schematic diagram LG color tv Circuit Diagram tda 9370 1000w inverter PURE SINE WAVE schematic diagram schematic diagram atx Power supply 500w TV SHARP IC TDA 9381 PS circuit diagram wireless spy camera 9744 mini mainboard v1.2 sony 279-87 transistor E 13005-2 superpro lx

    74AC245

    Abstract: 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245 74ACT245SC 74ACT245SCX ACT245
    Text: Revised March 2005 74AC245 • 74ACT245 Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs General Description Features The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at


    Original     		PDF 74AC245 74ACT245 AC/ACT245 74AC245 74AC245MTC 74AC245PC 74AC245SC 74AC245SJ 74ACT245 74ACT245SC 74ACT245SCX ACT245

    74ac14 inverter oscillator diagrams

    Abstract: CLCC-48 footprint vhdl code for DCO sw-dip8 U25 N120 PI49FCT807 C113 CY37256 CY37256P160-125AC C107
    Text: Counter Board Hardware Design and Test Document Rev 1.1 Revision History Date 01/22/03 02/11/03 Rev 1.0 1.1 Author Rob Yamashita Rob Yamashita Comment Initial Document Create PDF and add datasheets 1 24 Channel Counter Board 1.1 Overview The 24 Channel Counter board is used collect counts from 24 independent APDs. Each


    Original     		PDF PI49FCT807xTp PI49FCT807Tpx PI49FCT2807Tp 209-mil 150-mil 300-mil PI49FCT807ATH PI49FCT807THA PS7008C 74ac14 inverter oscillator diagrams CLCC-48 footprint vhdl code for DCO sw-dip8 U25 N120 PI49FCT807 C113 CY37256 CY37256P160-125AC C107

    c5088 transistor

    Abstract: transistor C3207 TLO84CN sec c5088 IN5355B D2817A C3207 transistor toshiba f630 TLO81CP MC74HC533N
    Text: Transistor - Diode Cross Reference - H.P. Part Numbers to JEDEC Numbers Part Num. 1820-0225 1820-0240 1820-0352 1820-1804 1821-0001 1821-0002 1821-0006 1850-0062 1850-0064 1850-0075 1850-0076 1850-0093 1850-0099 1850-0126 1850-0137 1850-0150 1850-0151 1850-0154


    Original     		PDF 1853IMPATT c5088 transistor transistor C3207 TLO84CN sec c5088 IN5355B D2817A C3207 transistor toshiba f630 TLO81CP MC74HC533N

    octal Bilateral Switches

    Abstract: MM74HC14M MM74HC138M CD4025BCM MM74HC00M MM74HC74AM MM74HC125M MM74HC04M cd4046bcm cd4052bcm
    Text: 1/3 CMOS LOGIC MM74HC SERIES MM74HCT/U SERIES • HIGH SPEED CMOS TECHNOLOGY, CMOS DRIVE LEVELS, SPEED COMPARABLE TO 74LS SERIES Part Number Description • HIGH SPEED CMOS TECHNOLOGY, TTL DRIVE LEVELS, SPEED COMPARABLE TO 74LS SERIES SQP £ ea. Gates & Inverters


    Original     		PDF MM74HC MM74HC00M MM74HC02M MM74HC04M MM74HC08M MM74HC14M MM74HC32M MM74HC86M MM74HC132M MM74HC74AM octal Bilateral Switches MM74HC138M CD4025BCM MM74HC125M cd4046bcm cd4052bcm

    5555 FAIRCHILD optocoupler

    Abstract: DM74LS75N MC74HC373DW 74hc14n equivalent HCF4060BE 40373 NC7S125M5X datasheet 14543 motorola 14049 CD40106BE
    Text: R E L I A B L E . L O G I C . I N N O V A T I O N . Logic Cross-Reference Logic Cross-Reference 2003 Texas Instruments Printed in the U.S.A. by Texoma Business Forms, Durant, Oklahoma Printed on recycled paper. SCYB017A NEW First Revision Logic Cross-Reference


    Original     		PDF SCYB017A A010203 5555 FAIRCHILD optocoupler DM74LS75N MC74HC373DW 74hc14n equivalent HCF4060BE 40373 NC7S125M5X datasheet 14543 motorola 14049 CD40106BE

    74AC245

    Abstract: No abstract text available
    Text: Revised November 1999 S E M IC O N D U C T O R T M 74AC245 74ACT245 Octal Bidirectiona I Transceiver with 3-STATE Inputs/Outputs • General Description Features The AC/ACT245 contains eight non-i nverting bidirectional buffers with 3-STATE outputs and is ntended for bus-oriented applications. Current sinking c apability is 24 mA at


    OCR Scan     		PDF 74AC245 74ACT245 AC/ACT245

    equivalent data book of 10N60 mosfet

    Abstract: MC14016CP GD4511 an-6466 CX 2859 SMD 74AC14 spice 6120* harris HCF4018be 7028 SMD Transistor spice irfbc40
    Text: $5.00 S E M I C O N D U C T O R TECHNICAL ASSISTANCE Harris Marketing Support Services HMSS , 1-800-4HARRIS HMSS provides world-class service to customers requiring information on all products offered by Harris Semiconductor. Ask Harris Marketing Support Services for answers concerning:


    OCR Scan     		PDF 1-800-4HARRIS equivalent data book of 10N60 mosfet MC14016CP GD4511 an-6466 CX 2859 SMD 74AC14 spice 6120* harris HCF4018be 7028 SMD Transistor spice irfbc40