Name: 1N4978US
Brand: Microsemi Corporation
SKU: 1N4978US
Availability: InStock
Rating: 5 (129 reviews)

1N4978US

For Reference Only

Part Number	1N4978US
Manufacturer	Microsemi Corporation
Description	DIODE ZENER 68V 5W D5B
Datasheet	1N4978US Specifications
Package	E-MELF
ECAD
In Stock	3,296 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Apr 27 - May 2 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # 1N4978US (Diodes - Zener - Single) is manufactured by Microsemi Corporation and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For 1N4978US specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add 1N4978US with quantity into BOM. Heisener.com does NOT require any registration to request a quote of 1N4978US.

1N4978US Specifications

Manufacturer	Microsemi Corporation
Category	Discrete Semiconductor Products - Diodes - Zener - Single
Package	E-MELF
ECAD
Series	-
Voltage - Zener (Nom) (Vz)	68V
Tolerance	±5%
Power - Max	5W
Impedance (Max) (Zzt)	50 Ohms
Current - Reverse Leakage @ Vr	2µA @ 51.7V
Voltage - Forward (Vf) (Max) @ If	1.5V @ 1A
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	E-MELF
Supplier Device Package	D-5B

1N4978US Reviews

Rogel*****eston

April 8, 2023

★ ★ ★ ★ ★

The are the right size and type and do what they are designed to do.

Nel***** Mays

April 7, 2023

★ ★ ★ ★ ★

Not much to say. Nice and cheap, and haven't had a failure yet.

Hadlei*****gherty

April 2, 2023

★ ★ ★ ★ ★

Competitively priced set of diodes, tested as described. Quality is about what you would expect for no- or off-brand.

Rand*****ields

March 1, 2023

★ ★ ★ ★ ★

This seems to be a good set. I'll update more when I've tested these and can review their working quality.

Mya *****leton

February 22, 2023

★ ★ ★ ★ ★

Very user friendly to find part and specs. Easy to deal with the transaction for different payment types. Thanks!

Clayt*****tchell

February 22, 2023

★ ★ ★ ★ ★

All OK, fast delivery, good quality. Product works as it should, Nice Seller.

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

1N4978US Packaging

1N4978US FAQ

1. How to order 1N4978US on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that 1N4978US is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the 1N4978US. All suppliers must pass our qualification reviews before they can publish their products including 1N4978US on Heisener; we pay more attention to the channels and quality of 1N4978US products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the 1N4978US price and inventory displayed accurate?

The price and inventory of 1N4978US fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of 1N4978US?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 1N4978US we delivered, we will accept the replacement or return of the 1N4978US only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of 1N4978US.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as 1N4978US pin diagram, 1N4978US datasheet?

If you need any after-sales service, please do not hesitate to contact us.

1N4978US Related Products

SIT1602BI-71-30S-40.500000D	SiTIME, -40 TO 85C, 2016, 20PPM, 3.0V, 4, -, -	View
C0603C200K2GACTU	KEMET, CAP CER 20PF 200V NP0 0603, 0603 (1608 Metric), -	View
06035C183JAT2A	AVX Corporation, CAP CER 0.018UF 50V X7R 0603, 0603 (1608 Metric), -	View
AON2809	Alpha & Omega Semiconductor Inc., MOSFET 2P-CH 12V 2A 6DFN, 6-WDFN Exposed Pad, -	View
LN1471SYTRP	Panasonic Electronic Components, LED AMBER DIFFUSED 2SMD GW, 2-SMD, Gull Wing, -	View
MS4800B-14-1360-10X-10R	Omron Automation and Safety, SAFETY LIGHT CURTAIN, -, -	View
T38021-21-0	Curtis Industries, CONN BARRIER STRP 21CIRC 0.375", -, -	View
ESQT-132-02-H-D-309	Samtec Inc., ELEVATED 2MM SOCKETS, -, -	View
103958-5	TE Connectivity AMP Connectors, CONN RECPT 6POS .100 POLAR 30AU, -, -	View
GTS01CF36-4S	Amphenol Industrial Operations, GT 3C 3#0 SKT RECP LINE, -, -	View
HR30-6PA-6P(71)	Hirose Electric Co Ltd, CONN PLUG 6POS MALE SOLDER, -, -	View
BACC63BV18H31S7H	Cinch Connectivity Solutions, CONN RCPT HSG FMALE 31POS PNL MT, -, -	View

1N4978US Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number	Manufacturer	Description	Stock
JANTX1N4978US D# V37:1799_07341246	Semtech Corporation	Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin SMD	0
JANTXV1N4978US D# V37:1799_09138170	Microchip Technology Inc	Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin E-MELF Bag RoHS: Not Compliant	0
1N4978US D# VN5:3623_17334568	Microsemi Corporation	Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin E-MELF Bag RoHS: Not Compliant	0
JAN1N4978US D# V37:1799_07332842	Semtech Corporation	Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin SMD	0

Part Number	Manufacturer	Description	Stock
1N4978US D# 1N4978US	Sensitron Semiconductors	Zener Single 68V 5000mW 2-Pin MELF - Bag (Alt: 1N4978US) RoHS: Not Compliant	0
JTXV1N4978US D# JTXV1N4978US	Semtech Corporation	Diode Zener Single 68V 5W 2-Pin Surface Mount - Bulk (Alt: JTXV1N4978US)	0
JAN1N4978US D# JAN1N4978US	Microchip Technology Inc	Diode Zener Single 68V 5% 5W 2-Pin E-MELF - Bag (Alt: JAN1N4978US) RoHS: Not Compliant	0
JTX1N4978US D# JTX1N4978US	Semtech Corporation	Diode Zener Single 68V 5W 2-Pin Surface Mount - Bulk (Alt: JTX1N4978US)	0
JANTX1N4978US D# JANTX1N4978US	Sensitron Semiconductors	Zener Single 68V 5000mW 2-Pin MELF - Bag (Alt: JANTX1N4978US) RoHS: Not Compliant	0
JANTXV1N4978US D# JANTXV1N4978US	Microchip Technology Inc	- Bag (Alt: JANTXV1N4978US) RoHS: Not Compliant	0
JANS1N4978US D# JANS1N4978US	Sensitron Semiconductors	Zener Single 68V 5000mW 2-Pin MELF - Trays (Alt: JANS1N4978US) RoHS: Not Compliant	0

Part Number

Manufacturer

Description

Stock

1N4978US

D# 1N4978US

Semtech Corporation

Diode Zener Single 68V 5% 5W 2-Pin SMD (Alt: 1N4978US)

Part Number	Manufacturer	Description	Stock
JANTX1N4978US	Microsemi Corporation	ZENER SGL 68V 5% 5W 2PIN D-5B - Trays	0
JANTXV1N4978US	Microsemi Corporation	ZENER SGL 68V 5% 5W 2PIN D-5B - Trays	0
1N4978US	Microsemi Corporation	ZENER SGL 68V 5% 5W 2PIN D-5B - Bulk	0
JAN1N4978US	Microsemi Corporation	ZENER VOLTAGE REGULATOR DIODE - Bulk	0

Part Number	Manufacturer	Description	Stock
1N4978US D# 1N4978USS-ND	Semtech Corporation	DIODE ZENER 68V 5W	0
JAN1N4978US D# 1086-2061-ND	Microchip Technology Inc	DIODE ZENER 68V 5W D5B	0
JTXV1N4978US D# 600-JTXV1N4978US-ND	Semtech Corporation	DIODE ZENER 68V 500W	0
JTX1N4978US D# 600-JTX1N4978US-ND	Semtech Corporation	DIODE ZENER 68V 500W	0
JANTX1N4978US D# 1086-2425-ND	Microchip Technology Inc	DIODE ZENER 68V 5W D5B	0
JANTXV1N4978US D# 1086-2783-ND	Microchip Technology Inc	DIODE ZENER 68V 5W D5B	0

Part Number	Manufacturer	Description	Stock
JANS1N4978US	Semtech Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	129
JANTXV1N4978US	Microsemi Corporation	OEM/CM QUOTES ONLY \| NO BROKERS	36
1N4978US	Microwave Semiconductor	OEM/CM QUOTES ONLY \| NO BROKERS	2886

Part Number

Manufacturer

Description

Stock

JANS1N4978US

Microchip Technology Inc

OEM/CM ONLY

270

Part Number	Manufacturer	Description	Stock
JANS1N4978US	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0
JANTXV1N4978US	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0
1N4978US	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0
JAN1N4978US	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0
1N4978US/TR	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0
JANTX1N4978US	Microchip Technology Inc	Zener Diodes RoHS: Compliant	0

Part Number	Manufacturer	Description	Stock
1N4978US D# MCHP00000041505	Microchip Technology Inc	Zener Diodes	0
JAN1N4978US D# MCHP00000057838	Microchip Technology Inc	Zener Diodes	0
1N4978US/TR D# MCHP00000041506	Microchip Technology Inc	Zener Diodes	0
JANTX1N4978US D# MCHP00000066039	Microchip Technology Inc	Zener Diodes	0
JANS1N4978US D# MCHP00000061767	Microchip Technology Inc	Zener Diodes	0
JANTXV1N4978US D# MCHP00000071516	Microchip Technology Inc	Zener Diodes	0

Part Number

Manufacturer

Description

Stock

JTXV1N4978US

D# 39AH2177

Semtech Corporation

68V ZENER 500W

RoHS: Not Compliant

Min Qty: 250

Container: Bulk

JTX1N4978US

D# 39AH2758

Semtech Corporation

68V ZENER 500W

RoHS: Not Compliant

Min Qty: 250

Container: Bulk

Part Number	Manufacturer	Description	Stock
1N4978US+JANS D# NS-1N4978US+JANS	Defense Logistics Agency	OEM/CM ONLY	10364
1N4978US+JANTX D# NS-1N4978US+JANTX	Defense Logistics Agency	OEM/CM ONLY	4903
1N4978US+JAN D# NS-1N4978US+JAN	Defense Logistics Agency	OEM/CM ONLY	7108
JAN1N4978US D# NS-JAN1N4978US	Microsemi Corporation	OEM/CM ONLY	1109
1N4978US+JANTXV D# NS-1N4978US+JANTXV	Defense Logistics Agency	OEM/CM ONLY	2454
JANTX1N4978US D# NS-JANTX1N4978US	Microsemi Corporation	OEM/CM ONLY	1173
JANTXV1N4978US D# NS-JANTXV1N4978US	Microsemi Corporation	OEM/CM ONLY	1104

Part Number

Manufacturer

Description

Stock

1N4978US

Microsemi Corporation

shipping today

Part Number

Manufacturer

Description

Stock

JANTXV1N4978US

D# 32041523

Microchip Technology Inc

Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin E-MELF Bag

RoHS: Not Compliant

1N4978US

D# 35312533

Microsemi Corporation

Zener Diode Single 68V 5% 50Ohm 5000mW 2-Pin E-MELF Bag

RoHS: Not Compliant

Quick Inquiry

1N4978US

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS