TL431AIP Search Results

TL431AIP Result Highlights (4)

Part	Manufacturer	Description
TL431AIPK	Texas Instruments	Adjustable precision shunt regulator 3-SOT-89 -40 to 85
TL431AIPE4	Texas Instruments	Adjustable precision shunt regulator 8-PDIP -40 to 85
TL431AIPKG3	Texas Instruments	Adjustable precision shunt regulator 3-SOT-89 -40 to 85
TL431AIP	Texas Instruments	Adjustable precision shunt regulator 8-PDIP -40 to 85

TL431AIP Price and Stock

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Texas Instruments TL431AIPKG3 IC VREF SHUNT ADJ 1% SOT89-3
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	TL431AIPKG3	Cut Tape	6,177		1	1 $0.21 10 $0.145 100 $0.1089 1000 $0.0946 10000 $0.0946	Buy Now
	TL431AIPKG3	Digi-Reel	6,177		1	1 $0.21 10 $0.145 100 $0.1089 1000 $0.0946 10000 $0.0946	Buy Now
	TL431AIPKG3	Reel	4,000		1,000	1 - 10 - 100 - 1000 $0.09017 10000 $0.09017	Buy Now
Bristol Electronics	TL431AIPKG3		6,956			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Quest Components	TL431AIPKG3		5,564			1 $0.714 10 $0.714 100 $0.714 1000 $0.2142 10000 $0.1428	Buy Now
Win Source Electronics	TL431AIPKG3		58,730			1 - 10 - 100 - 1000 $0.0764 10000 $0.0592	Buy Now
Texas Instruments TL431AIPK IC VREF SHUNT ADJ 1% SOT89-3
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	TL431AIPK	Cut Tape	5,727		1	1 $0.21 10 $0.145 100 $0.1089 1000 $0.0946 10000 $0.0946	Buy Now
	TL431AIPK	Digi-Reel	5,727		1	1 $0.21 10 $0.145 100 $0.1089 1000 $0.0946 10000 $0.0946	Buy Now
	TL431AIPK	Reel	5,000		1,000	1 - 10 - 100 - 1000 $0.09017 10000 $0.08034	Buy Now
Mouser Electronics	TL431AIPK		3,390			1 $0.21 10 $0.128 100 $0.095 1000 $0.09 10000 $0.08	Buy Now
Arrow Electronics	TL431AIPK	Cut Strips	25	6 Weeks	1	1 $0.112 10 $0.0929 100 $0.0738 1000 $0.0738 10000 $0.0738	Buy Now
TME	TL431AIPK				1	1 $0.409 10 $0.244 100 $0.152 1000 $0.106 10000 $0.096	Get Quote
Ameya Holding Limited	TL431AIPK		5,000			1 - 10 - 100 - 1000 - 10000 -	Get Quote

Chip One Stop	TL431AIPK	Cut Tape	1,563	0 Weeks, 1 Days	5	1 - 10 $0.188 100 $0.11 1000 $0.107 10000 $0.107	Buy Now
Win Source Electronics	TL431AIPK		62,000			1 - 10 - 100 - 1000 $0.0764 10000 $0.0592	Buy Now
Texas Instruments TL431AIP IC VREF SHUNT ADJ 1% 8DIP
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	TL431AIP	Tube	1,399		1	1 $0.29 10 $0.2 100 $0.1525 1000 $0.12741 10000 $0.12741	Buy Now
Verical	TL431AIP		9,050		3,139	1 - 10 - 100 - 1000 - 10000 $0.1195	Buy Now
Quest Components	TL431AIP		10			1 $0.2259 10 $0.2259 100 $0.2259 1000 $0.2259 10000 $0.2259	Buy Now
Rochester Electronics	TL431AIP		22,218		1	1 $0.1125 10 $0.1125 100 $0.1058 1000 $0.0956 10000 $0.0956	Buy Now
ComSIT USA	TL431AIP		850			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Rochester Electronics LLC TL431AIP TL431 - ADJUSTABLE PRECISION SHU
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	TL431AIP	Bulk			2,565	1 - 10 - 100 - 1000 - 10000 $0.12	Buy Now
onsemi TL431AIP IC VREF SHUNT ADJ 1% 8DIP
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	TL431AIP	Tube			50	1 - 10 - 100 $0.7472 1000 $0.7472 10000 $0.7472	Buy Now

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TL431AIP Datasheets (28)

Part	Manufacturer	Description	Datasheet Type	PDF
TL431AIP	Motorola	PROGRAMMABLE PRECISION REFERENCES	Original	PDF
TL431AIP	On Semiconductor	TL431 - IC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PDIP8, PLASTIC, DIP-8, Voltage Reference	Original	PDF
TL431AIP	On Semiconductor	IC V-REF PRECISION 2.495V TO 36V 100MA 8PDIP TUBE	Original	PDF
TL431AIP	On Semiconductor	PROGRAMMABLE PRECISION REFERENCES	Original	PDF
TL431AIP	On Semiconductor	Adjustable 2.5-36V +/-1% Tolerance, 1-100mA Shunt Regulator; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50	Original	PDF
TL431AIP	Philips Semiconductors	Adjustable Precision Shunt Regulators	Original	PDF
TL431AIP	Texas Instruments	TL431 - Adjustable Precision Shunt Regulator 8-PDIP -40 to 85	Original	PDF
TL431AIP	Texas Instruments	Adjustable Precision Shunt Regulators	Original	PDF
TL431AIP	Texas Instruments	Adjustable Precision Shunt Regulator	Original	PDF
TL431AIP	Texas Instruments	Adjustable Precision Shunt Regulator 8-PDIP -40 to 85	Original	PDF
TL431AIP	Unknown	Historical semiconductor price guide (US$ - 1998). From our catalog scanning project.	Historical	PDF
TL431AIP	Philips Semiconductors	Adjustable precision shunt regulators	Scan	PDF
TL431AIPE4	Texas Instruments	TL431 - Adjustable Precision Shunt Regulator 8-PDIP -40 to 85	Original	PDF
TL431AIPE4	Texas Instruments	Adjustable Precision Shunt Regulator	Original	PDF

TL431AIPE4	Texas Instruments	Adjustable Precision Shunt Regulator 8-PDIP -40 to 85	Original	PDF
TL431AIPG	On Semiconductor	TL431 - IC 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.495 V, PDIP8, LEAD FREE, PLASTIC, DIP-8, Voltage Reference	Original	PDF
TL431AIPG	On Semiconductor	IC V-REF PRECISION 2.495V TO 36V 100MA 8PDIP TUBE	Original	PDF
TL431AIPG	On Semiconductor	Adjustable 2.5-36V +/- 1% Tolerance 1-100mA Shunt Regulator - PB Free; Package: 8 LEAD PDIP; No of Pins: 8; Container: Rail; Qty per Container: 50	Original	PDF
TL431AIPG4	Texas Instruments	Integrated Circuits (ICs) - PMIC - Voltage Reference - IC VREF SHUNT ADJ 8DIP	Original	PDF
TL431AIPK	Microsemi	Voltage Reference - Programmable	Original	PDF

TL431AIP Datasheets Context Search

Catalog Datasheet	MFG & Type	Document Tags	PDF
Untitled Abstract: No abstract text available Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543J TL431B)	PDF
transistors BC 458 Abstract: equivalent transistor TL431AC bc DM 0365 R pin EQUIVALENT TL431CDR2G TL431BIDR2G TL431ACDR2G TL431ACDG TL431AILPRMG mc7805 transistor BC 635 Text: TL431, A, B Series, NCV431A, B Programmable Precision References The TL431, A, B integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These	Original	TL431, NCV431A, TL431/D transistors BC 458 equivalent transistor TL431AC bc DM 0365 R pin EQUIVALENT TL431CDR2G TL431BIDR2G TL431ACDR2G TL431ACDG TL431AILPRMG mc7805 transistor BC 635	PDF
TL431ACLPR Abstract: datasheet of diode 2n222 TL431CLPM TL431 SOT-23 tl431 sot23 texas TL431BCLPM Z431B TL431MJGB 431AC datasheet lm317 sot-89 Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543H − AUGUST 2004 − REVISED JANUARY 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543H TL431B) TL431ACLPR datasheet of diode 2n222 TL431CLPM TL431 SOT-23 tl431 sot23 texas TL431BCLPM Z431B TL431MJGB 431AC datasheet lm317 sot-89	PDF
MC68B21CP Abstract: xcm916x1cth16 transistor marking code 12W SOT-23 sg379 MC68B54P XC68HC805P18CDW mc68b50cp MC2830 NE555N CHN NE555N Text: SG379/D REV 7 Semiconductor Products Sector NORTH AMERICA SALES AND DISTRIBUTION PRICE LIST THIS BOOK IS IN COMPUTER SORT PRODUCT CLASSIFICATION – Please see General Information Section 1.3 EFFECTIVE DATE: JANUARY 10, 1998 General Information 1 Cross References	Original	SG379/D 1N965BRL ZEN15V 1N751AS 1N967BRL ZEN18V 1N751ASRL 1N968BRL ZEN20V MC68B21CP xcm916x1cth16 transistor marking code 12W SOT-23 sg379 MC68B54P XC68HC805P18CDW mc68b50cp MC2830 NE555N CHN NE555N	PDF
Untitled Abstract: No abstract text available Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543H − AUGUST 2004 − REVISED JANUARY 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543H TL431B)	PDF
431AC Abstract: CHIP T431 P TL431CLPM TL431ACLPR TL431 application note SLVS005 Text: TL431, TL431A, TL432, TL432A ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005W − JULY 1978 − REVISED DECEMBER 2003 D Initial Accuracy 25°C D D D D D − 1% . . . A Grade − 2% . . . Standard Grade Equivalent Full-Range Temperature Coefficient . . . 30 ppm/°C	Original	TL431, TL431A, TL432, TL432A SLVS005W TL431A TL431 431AC CHIP T431 P TL431CLPM TL431ACLPR TL431 application note SLVS005	PDF
t431b Abstract: T3F marking TAC SOT23-5 SLVS005 Text: TL431, TL431A, TL431B, TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005Y − JULY 1978 − REVISED JUNE 2004 D Operation From −40°C to 125°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade Equivalent Full-Range Temperature	Original	TL431, TL431A, TL431B, TL432, TL432A, TL432B SLVS005Y TL431B t431b T3F marking TAC SOT23-5 SLVS005	PDF
lm317 Abstract: TL431BCPK TL431ACDR Text: TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L – AUGUST 2004 – REVISED FEBRUARY 2011 www.ti.com PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L TL431B, lm317 TL431BCPK TL431ACDR	PDF
T431BQ Abstract: 3h SOT23-5 SLVS005 Text: TL431, TL431A, TL431B, TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005Y − JULY 1978 − REVISED JUNE 2004 D Operation From −40°C to 125°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade Equivalent Full-Range Temperature	Original	TL431, TL431A, TL431B, TL432, TL432A, TL432B SLVS005Y TL431B T431BQ 3h SOT23-5 SLVS005	PDF
TL432BQDBZR Abstract: No abstract text available Text: TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L – AUGUST 2004 – REVISED FEBRUARY 2011 www.ti.com PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L TL431B, TL432BQDBZR	PDF
transistors BC 458 Abstract: BC 458 transistor TL431 TL431CDR2G TL431ACDR2G TL431ACDG DM 0365 R pin EQUIVALENT TL431AILPRMG NCV431A TL431B Text: TL431, A, B Series, NCV431A, B Programmable Precision References The TL431, A, B integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These	Original	TL431, NCV431A, TL431/D transistors BC 458 BC 458 transistor TL431 TL431CDR2G TL431ACDR2G TL431ACDG DM 0365 R pin EQUIVALENT TL431AILPRMG NCV431A TL431B	PDF
431AC Abstract: t431a 431AI 431AC datasheet TI 431AC t431 TL431 TL431ACLPR TL431CLPM T3C TL431 Text: TL431, TL431A ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005T – JULY 1978 – REVISED JUNE 2003 D D D D D Equivalent Full-Range Temperature Coefficient . . . 30 ppm/°C 0.2-Ω Typical Output Impedance TL431, TL431A . . . D PACKAGE TOP VIEW CATHODE ANODE	Original	TL431, TL431A SLVS005T 431AC t431a 431AI 431AC datasheet TI 431AC t431 TL431 TL431ACLPR TL431CLPM T3C TL431	PDF
TL431ACDR2G Abstract: TL431 TL431BID TL431ACDG TL431CDR2G TL431 marking NCV431A TL431AC TL431AI TL431B Text: TL431, A, B Series, NCV431A Programmable Precision References The TL431, A, B integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These	Original	TL431, NCV431A TL431/D TL431ACDR2G TL431 TL431BID TL431ACDG TL431CDR2G TL431 marking NCV431A TL431AC TL431AI TL431B	PDF
Untitled Abstract: No abstract text available Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543I − AUGUST 2004 − REVISED MAY 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543I TL431B)	PDF

TL431ACDG4 Abstract: TL431-TL432 Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543I − AUGUST 2004 − REVISED MAY 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543I TL431B) TL431ACDG4 TL431-TL432	PDF
tl431ac ti Abstract: TL431CDR SLVS005 tl431a DIP 2N222 lm317 to-92 TL431A TL431AC TL431AI TL431C Text: TL431, TL431A ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005J – JULY 1978 – REVISED JULY 1999 D D D D D D Equivalent Full-Range Temperature Coefficient . . . 30 ppm/°C 0.2-Ω Typical Output Impedance Sink-Current Capability . . . 1 mA to 100 mA Low Output Noise	Original	TL431, TL431A SLVS005J TL431 TL431A O-226AA O-226AA tl431ac ti TL431CDR SLVS005 tl431a DIP 2N222 lm317 to-92 TL431AC TL431AI TL431C	PDF
TL431 Abstract: TL431 sot package sot-23 TL431BCPK TL431ACDR TL431A TL431B TL431CP TL432 TL432A TL432B Text: TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L – AUGUST 2004 – REVISED FEBRUARY 2011 www.ti.com PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543L TL431B, TL431 TL431 sot package sot-23 TL431BCPK TL431ACDR TL431A TL431B TL431CP TL432 TL432A TL432B	PDF
431AC Abstract: Z431 PBCY 59 Z431B 431AC datasheet LM317 sot-23 DATASHEET TL431CDR TL431CPK tl431 sot23 texas transistor TL431 Text: TL431, TL431A, TL431B TL432, TL432A, TL432B ADJUSTABLE PRECISION SHUNT REGULATORS SLVS543J − AUGUST 2004 − REVISED DECEMBER 2005 D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C D − 0.5% . . . B Grade − 1% . . . A Grade − 2% . . . Standard Grade	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543J TL431B) 431AC Z431 PBCY 59 Z431B 431AC datasheet LM317 sot-23 DATASHEET TL431CDR TL431CPK tl431 sot23 texas transistor TL431	PDF
ee13 bobbin Abstract: HICAL 548 vishay 1N4007 DO-214AC HICAL LNK363 USB charger opto Star Sea Electronics ss14 diode TAQ2G4R7MK0811 ECK-D3A122KBN LNK363DN Text: Design Example Report Title 2.75 W Single Output, Isolated Charger Using LNK363DN Specification 90 VAC – 264 VAC Input 5 V, 0.55 A, CVCC Output Application Cell Phone Charger Author Power Integrations Application Department Document Number DER-135 Date September 5, 2007	Original	LNK363DN DER-135 200mW CISPR22B ee13 bobbin HICAL 548 vishay 1N4007 DO-214AC HICAL LNK363 USB charger opto Star Sea Electronics ss14 diode TAQ2G4R7MK0811 ECK-D3A122KBN LNK363DN	PDF
431AC Abstract: T431B T431BQ T3FG SOT23 T431 TAIS SOT TACS SOT-23 T3CG marking TACS SOT-23 T3FU Text: TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C Reference Voltage Tolerance at 25°C	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M TL431B, 431AC T431B T431BQ T3FG SOT23 T431 TAIS SOT TACS SOT-23 T3CG marking TACS SOT-23 T3FU	PDF
Z431B ti Abstract: 431AC tacg T431B Z431B TI 431AC t2u sot23 TL431-W 431ai T431BQ Text: TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C Reference Voltage Tolerance at 25°C	Original	TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M TL431B, Z431B ti 431AC tacg T431B Z431B TI 431AC t2u sot23 TL431-W 431ai T431BQ	PDF
transistor 4242 dm Abstract: No abstract text available Text: TL431, A, B Series Programmable Precision References PROGRAMMABLE PRECISION REFERENCES The TL431, A, B integrated circuits are three–terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V	Original	TL431, transistor 4242 dm	PDF
TL431I Abstract: TL431M TL431MFK TL431AC TL431C TL431CDR 30PPM TL431AI L431c tl4311 Text: TL431C, TL431AC, TL431I, TL431AI, TL431M, TL431Y ADJUSTABLE PRECISION SHUNT REGULATORS SLVS005I - JULY 1978 - REVISED AUGUST 1998 D PACKAGE TOP VIEW • Equivalent Full-Range Temperature Coefficient. . . 30 ppm/°C • 0.2-ii Typical Output Impedance •	OCR Scan	TL431C, TL431AC, TL431I, TL431AI, TL431M, TL431Y SLVS005I TL431 TL431A TL431I TL431M TL431MFK TL431AC TL431C TL431CDR 30PPM TL431AI L431c tl4311	PDF
tl431 TRANSISTOR equivalent Abstract: tl4311 WS TL431A tl431 transistor transistor TL431 to92 transistor TL431AC transistor TL431C TI TRANSISTOR tl431 TL4311LP TL431C Text: Philips Semiconductors Product specification Adjustable precision shunt regulators DESCRIPTION TL431C, TL431AC, TL431I, TL431AI, LM431AC PIN CONFIGURATIONS The TL431 and T L431A are 3-term inal adjustable shunt regulators with specified therm al stability over applicable autom otive and	OCR Scan	TL431C, TL431AC, TL431I, TL431AI, LM431AC TL431 TL431A TL431C tl431 TRANSISTOR equivalent tl4311 WS TL431A tl431 transistor transistor TL431 to92 transistor TL431AC transistor TL431C TI TRANSISTOR tl431 TL4311LP	PDF

TL431AIP Search Results

TL431AIP Result Highlights (4)

TL431AIP Price and Stock

Texas Instruments TL431AIPKG3

Texas Instruments TL431AIPK

Texas Instruments TL431AIP

Rochester Electronics LLC TL431AIP

onsemi TL431AIP

TL431AIP Datasheets (28)

TL431AIP Datasheets Context Search

Untitled

transistors BC 458

TL431ACLPR

MC68B21CP

Untitled

431AC

t431b

lm317

T431BQ

TL432BQDBZR

transistors BC 458

431AC

TL431ACDR2G

Untitled

TL431ACDG4

tl431ac ti

TL431

431AC

ee13 bobbin

431AC

Z431B ti

transistor 4242 dm

TL431I

tl431 TRANSISTOR equivalent