HC700 Search Results

HC700 Result Highlights (5)

Part	Manufacturer	Description
SN74HC7001N	Texas Instruments	Quadruple Positive-AND Gates With Schmitt-Trigger Inputs 14-PDIP -40 to 85
SN74HC7002PW	Texas Instruments	Quadruple Positive-NOR Gates With Schmitt-Trigger Inputs 14-TSSOP -40 to 85
SN74HC7002PWG4	Texas Instruments	Quadruple Positive-NOR Gates With Schmitt-Trigger Inputs 14-TSSOP -40 to 85
SN74HC7002DR	Texas Instruments	Quadruple Positive-NOR Gates With Schmitt-Trigger Inputs 14-SOIC -40 to 85
SN74HC7002NE4	Texas Instruments	Quadruple Positive-NOR Gates With Schmitt-Trigger Inputs 14-PDIP -40 to 85

HC700 Price and Stock

Filter by Manufacturer


Texas Instruments SN74HC7001DR IC GATE AND 4CH 2-INP 14SOIC
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	SN74HC7001DR	Cut Tape	3,403		1	1 $1.55 10 $1.134 100 $0.9149 1000 $0.79994 10000 $0.79994	Buy Now
	SN74HC7001DR	Reel	2,500		2,500	1 - 10 - 100 - 1000 - 10000 $0.77124	Buy Now
Mouser Electronics	SN74HC7001DR		4,112			1 $1.55 10 $1.03 100 $0.915 1000 $0.8 10000 $0.735	Buy Now
Bristol Electronics	SN74HC7001DR		50			1 - 10 - 100 - 1000 - 10000 -	Get Quote
TME	SN74HC7001DR				1	1 $1.82 10 $1.71 100 $1.31 1000 $1.07 10000 $1.07	Get Quote
Ameya Holding Limited	SN74HC7001DR		1,602			1 - 10 - 100 - 1000 - 10000 -	Get Quote

Chip 1 Exchange	SN74HC7001DR		2,350			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Chip1Stop	SN74HC7001DR	Cut Tape	1			1 $1 10 $1 100 $1 1000 $1 10000 $1	Buy Now
Texas Instruments SN74HC7002DR IC GATE NOR 4CH 2-INP 14SOIC
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	SN74HC7002DR	Reel	2,500		2,500	1 - 10 - 100 - 1000 - 10000 $1.1651	Buy Now
Mouser Electronics	SN74HC7002DR		1,930			1 $2.02 10 $1.53 100 $1.37 1000 $1.21 10000 $1.1	Buy Now
Bristol Electronics	SN74HC7002DR		3,727			1 - 10 - 100 - 1000 - 10000 -	Get Quote
Rochester Electronics	SN74HC7002DR		2,712		1	1 $1.04 10 $1.04 100 $0.9776 1000 $0.884 10000 $0.884	Buy Now
NexGen Digital	SN74HC7002DR		450			1 - 10 - 100 - 1000 - 10000 -	Get Quote

Chip1Stop	SN74HC7002DR	Cut Tape	2,128			1 $1.12 10 $1.11 100 $1.1 1000 $1.1 10000 $1.1	Buy Now
Texas Instruments SN74HC7001D IC GATE AND 4CH 2-INP 14SOIC
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	SN74HC7001D	Tube	434		1	1 $2.05 10 $1.513 100 $1.2314 1000 $1.16104 10000 $1.16104	Buy Now
Rochester Electronics	SN74HC7001D		32		1	1 $1.04 10 $1.04 100 $0.9776 1000 $0.884 10000 $0.884	Buy Now
Texas Instruments SN74HC7002DT IC GATE NOR 4CH 2-INP 14SOIC
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	SN74HC7002DT	Digi-Reel	197		1	1 $3.28 10 $2.461 100 $2.0323 1000 $2.0323 10000 $2.0323	Buy Now
	SN74HC7002DT	Cut Tape	197		1	1 $3.28 10 $2.461 100 $2.0323 1000 $2.0323 10000 $2.0323	Buy Now
Rochester Electronics	SN74HC7002DT		2,882		1	1 $1.78 10 $1.78 100 $1.67 1000 $1.51 10000 $1.51	Buy Now
Mean Well HLG-185H-C700B LED DRVR CC AC/DC 143-286V 700MA
Distributors	Part	Package	Stock	Lead Time	Min Order Qty	Price	Buy
DigiKey	HLG-185H-C700B	Box	135		1	1 $60.17 10 $60.17 100 $51.9004 1000 $51.9004 10000 $51.9004	Buy Now
Avnet Americas	HLG-185H-C700B	Box		19 Weeks, 3 Days	1	1 $58.7 10 $53.5 100 $51.9 1000 $51.9 10000 $51.9	Buy Now
Mouser Electronics	HLG-185H-C700B		8			1 $59.88 10 $56.12 100 $52.45 1000 $52.45 10000 $52.45	Buy Now
RS	HLG-185H-C700B	Bulk	2	12 Weeks	1	1 $63.76 10 $63.76 100 $63.76 1000 $63.76 10000 $63.76	Buy Now
Bristol Electronics	HLG-185H-C700B		202			1 - 10 - 100 - 1000 - 10000 -	Get Quote

TME	HLG-185H-C700B		25		1	1 $58.7 10 $53.5 100 $51.9 1000 $51.9 10000 $51.9	Buy Now
Master Electronics	HLG-185H-C700B		35			1 $58.7 10 $53.5 100 $51.9 1000 $51.9 10000 $51.9	Buy Now
Neutron USA	HLG-185H-C700B		50			1 $180.96 10 $180.96 100 $180.96 1000 $180.96 10000 $180.96	Buy Now
Sager	HLG-185H-C700B		60		1	1 $58.7 10 $53.5 100 $51.9 1000 $51.9 10000 $51.9	Buy Now

Find more HC700 price and stock on Findchips.com

HC700 Datasheets (9)

Part	Manufacturer	Description	Datasheet Type	PDF
HC700	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7001	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7001A	Trident Displays	7 Color TFT LCD	Scan	PDF
HC7002	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7004	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7005	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7006	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7007	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF
HC7008	Unknown	Shortform Semicon, Diode, and SCR Datasheets	Short Form	PDF

HC700 Datasheets Context Search

Catalog Datasheet	MFG & Type	PDF	Document Tags
hc700 Abstract: HC7001A Text: FOR APPROVAL Model : HC7001A Customer : RECEIPT STATUS RECEIVED By Date Signature Name Title Approved by Checked by Spec. No. SN/HC7001A/CDR Version 1 Total Pages 6 Date Aug. 09, 2001 H E X A - C H A I N C O. , LT D . NO.2, KUO LIEN ST., PATE CITY, TAOYUAN HSIEN, TAIWAN, R.O.C.	Original	PDF	HC7001A SN/HC7001A/CDR HC7001A, hc700 HC7001A
hes 1-221 Abstract: No abstract text available Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 SN74HC7002 scyd013 sdyu001x sgyc003d SN74HC4851/HC4852 scyb019b hes 1-221
hc700 Abstract: SN54HC7002 SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR SNJ54HC7002J Text: HC7002, HC7002 QUADRUPLE POSITIVE-NOR GATES WITH SCHMITT-TRIGGER INPUTS SCLS033D – MARCH 1984 – REVISED DECEMBER 2002 D D D D D D D Wide Operating Voltage Range of 2 V to 6V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033D SN54HC7002 hc700 SN54HC7002 SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR SNJ54HC7002J
Untitled Abstract: No abstract text available Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002
HC08 Abstract: SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 HC08 SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J
HC08 Abstract: SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 SN74HC7001DR SN74HC7001NSR 11-Mar-2008 HC08 SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J
Decoder 16L8 Abstract: application Pla 16l8 74hc373 verilog HC714 HC711 PLA 16L8 major report on eprom programmer 16L8 74HC373 74HC374 Text: Programmable Peripheral Application Note 049 PSD6XX Design Tutorial By Ching Lee Introduction This tutorial takes you step-by-step through the development cycle of a PSD6XX based design, from design entry to programming the device. A simple design example is used to	Original	PDF	80C31 //80C31 hC001) hC001, hC002) hC002, Decoder 16L8 application Pla 16l8 74hc373 verilog HC714 HC711 PLA 16L8 major report on eprom programmer 16L8 74HC373 74HC374
HC08 Abstract: SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 HC08 SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J
SN54HC7002 Abstract: SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR HC-7002 Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 SN54HC7002 SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR HC-7002
Untitled Abstract: No abstract text available Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 SN74HC7001
SN54HC7002 Abstract: SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 SN54HC7002 SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR
Untitled Abstract: No abstract text available Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 SN74HC7002 MTSS001C 4040064/F MO-153
Untitled Abstract: No abstract text available Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001
Untitled Abstract: No abstract text available Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 SN74HC7002 MTSS001C 4040064/F MO-153

SN54HC7002 Abstract: SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR Text: HC7002, HC7002 QUADRUPLE POSITIVEĆNOR GATES WITH SCHMITTĆTRIGGER INPUTS SCLS033F − MARCH 1984 − REVISED NOVEMBER 2004 D D D D D D D Wide Operating Voltage Range of 2 V to 6 V Typical tpd = 14 ns Low Power Consumption, 20-µA Max ICC Low Input Current of 1 µA Max	Original	PDF	SN54HC7002, SN74HC7002 SCLS033F SN54HC7002 4040064/F MO-153 SN54HC7002 SN74HC7002 SN74HC7002D SN74HC7002DR SN74HC7002DT SN74HC7002N SN74HC7002NSR SN74HC7002PW SN74HC7002PWR
Untitled Abstract: No abstract text available Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 SN74HC7001
HC08 Abstract: SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 HC08 SN54HC7001 SN74HC7001 SN74HC7001D SN74HC7001DR SN74HC7001DT SN74HC7001N SN74HC7001NSR SNJ54HC7001J
Untitled Abstract: No abstract text available Text: HC7001, HC7001 QUADRUPLE POSITIVEĆAND GATES WITH SCHMITTĆTRIGGER INPUTS SCLS035E − MARCH 1984 − REVISED NOVEMBER 2004 D Wide Operating Voltage Range of 2 V to 6 V D Operation From Very Slow Input D D Transitions Same Pinouts as ’HC08 Outputs Can Drive Up To 10 LSTTL Loads	Original	PDF	SN54HC7001, SN74HC7001 SCLS035E SN54HC7001 SN74HC7001
IS09002 Abstract: HC7001A hexa-chain hc700 trident 10F1 Text: FOR APPROVAL Model : HC7001A Custom er : RECEIPT STATUS RECEIVED By Date Signature Name Title Approved by Checked by Spec. No. SN/HC7001A/CDR 1 Version Total Pages Date Aug. 09, 2001 T r id e n t D is p l a y s r L I M I T E D Sales & Accounts Perrywood Business Park	OCR Scan	PDF	HC7001A SN/HC7001A/CDR is09002 IS09002 HC7001A hexa-chain hc700 trident 10F1
hc251 Abstract: dual schmitt-trigger inverters Text: Contents HC/HCT Gates/MSI/Octals ’HCOO ’HCTOO ’HC02 'HCT02 ’HC03 ’HC04 ’HCU04 'HCT04 'HC05 'HC08 'HCT08 'HC10 ’HC11 ’HC14 ’HCT14 'HC20 'HC21 'HC27 ’HC32 ’HCT32 ’HC42 ’HC74 ’HCT74 'HC86 'HC112 'HC125 'HCT125 'HC126 ’HC132 ’HC138	OCR Scan	PDF	HCT02 HCU04 HCT04 HCT08 HCT14 HCT32 HCT74 HC112 HC125 HCT125 hc251 dual schmitt-trigger inverters
TC74HC4022 Abstract: HC-701 Text: TC74HC4022AP/AF O C T A L C O U N TER /D IVID ER The TC74HC4022A is a high speed CMOS OCTAL COUNTER DIVIDER fabricated with silicon gate C* MOS technology. It achieves th e high speed operation sim ilar to equiv alen t LSTTL w hile m aintaining th e CMOS low power	OCR Scan	PDF	TC74HC4022AP/AF TC74HC4022A HC-701 TC74HC4022 HC-701
varactor Abstract: 1N3182 1N5138 1N3947 1N5136 K511 vc299 vc99 MIL-S-19500 1n3945 Text: Table of Contents ZENER DIODES Page K 1 2 0 -K 5 1 0 K511 - K681 1N4678 - 1N4714 1 N 4 6 1 4 - 1N4627 1N4099 - 1N4121 1N5518 - 1N5546 1N6082 - 1N6091 KZ43A - KZ100A KZ343A - KZ3100A KZ450 - KZ498 CURRENT REGULATOR AND VARACTOR DIODES Page 9 9 9 10 10 11 11	OCR Scan	PDF	1N4678 1N4714 1N4627 1N4099 1N4121 1N5518 1N5546 1N6082 1N6091 KZ43A varactor 1N3182 1N5138 1N3947 1N5136 K511 vc299 vc99 MIL-S-19500 1n3945
Tr431 Abstract: 1N1525 cs1256hg BSF17 dd04 18DB6A B1274 transistor 1N34A MP LT236 SN76 Text: I RJ 1 international, rectifier IR R e p la c e m ent P a rt No. 25710 25T12 « S ? S H fcx S yty P a rt No. IR R e p la c e m ent Z1012 Z1014 21016 Z1018 21020 AA138 AA140 AA142 AA2 AA20 IN34A IN34A JN34A TR-08 6F20D ZI022 Z1006 21008 700 21012 AA200	OCR Scan	PDF	25T12 Z1012 Z1014 Z1018 AA138 AA140 AA142 AA200 AA21Q AA300 Tr431 1N1525 cs1256hg BSF17 dd04 18DB6A B1274 transistor 1N34A MP LT236 SN76
hep 154 silicon diode Abstract: zy 406 transistor motorola HEP 801 hep 154 diode hep R1751 triac zd 607 2sb337 RS5743.3 F82Z hep 230 pnp Text: SEMICONDUCTOR This guide has been prepared by the Motorola HEP technical staff to provide a cross-reference for the Hobbyist, Experimenter, and Profes sional service technician. The information contained herein is based on an analysis of the published specifications of each device listed. This	OCR Scan	PDF	MY110B Z0206 Z0208 Z0210 Z0211 Z0212 Z0214 Z0215 Z0217 Z0219 hep 154 silicon diode zy 406 transistor motorola HEP 801 hep 154 diode hep R1751 triac zd 607 2sb337 RS5743.3 F82Z hep 230 pnp

Privacy Settings

HC700 Search Results

HC700 Result Highlights (5)

HC700 Price and Stock

Texas Instruments SN74HC7001DR

Texas Instruments SN74HC7002DR

Texas Instruments SN74HC7001D

Texas Instruments SN74HC7002DT

Mean Well HLG-185H-C700B

HC700 Datasheets (9)

HC700 Datasheets Context Search

hc700

hes 1-221

hc700

Untitled

HC08

HC08

Decoder 16L8

HC08

SN54HC7002

Untitled

SN54HC7002

Untitled

Untitled

Untitled

SN54HC7002

Untitled

HC08

Untitled

IS09002

hc251

TC74HC4022

varactor

Tr431

hep 154 silicon diode