1N4979 [Microchip]

Name: 1N4979
Brand: Microchip
SKU: 1N4979
Availability: InStock

Part No:

1N4979

Diodes & Rectifiers

Manufacturer:

Microchip

Description:

This Zener Voltage Regulator series is military qualified to MIL-PRF-19500/356 and is ideal for high-reliability applications where a failure cannot be tolerated. These industry-recognized 5 Watt Zener Voltage Regulators are hermetically sealed with voidless-glass construction using an internal metallurgical bond.

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

1N4954 Power Dissipation

5W @ TL=65°C at 3/8 inch from body

1N4954 Thermal Impedance 10ms

1.8°C/W

1N4954 Thermal Resistance

22°C/W

1N5968 Power Dissipation

5W @ TL=25°C

1N5968 Thermal Impedance 10ms

3.0°C/W

1N5968 Thermal Resistance

30°C/W

1N6632 Power Dissipation

5W @ TL=25°C

1N6632 Thermal Impedance 10ms

3.0°C/W

1N6632 Thermal Resistance

30°C/W

Case

Hermetically sealed voidless hard glass with Tungsten slugs

Forward Voltage (AT 1.0A)

1.50V at 1.0A

Marking

Body painted and part number

Operating Temperature

-65°C ~ +175°C

Packing

Tape and reel

Polarity

Cathode indicated by band

Storage Temperature

-65°C ~ +175°C

Terminations

Copper with Tin/Lead (Sn/Pb) finish

Weight

750 mg

Products Detail

Military qualified 5 Watt Zener Voltage Regulators with voidless hermetically sealed glass construction. Features include triple-layer passivation, internal metallurgical bonds (Category I for 1N4954-1N4996, Category III for 1N6632-1N6637 and 1N5968-1N5969), and availability in JAN, JANTX, JANTXV, and JANS grades. Offers voltage regulation from 3.3V to 390V with standard 5% tolerance and optional tighter tolerances (2% or 1%). Available in axial-lead through-hole and surface-mount packages.

Key Features

Popular JEDEC registered series
Voidless hermetically sealed glass package
Extremely robust construction
Triple-layer passivation
Internal metallurgical bonds (Category I for 1N4954-1N4996, Category III for 1N6632-1N6637 and 1N5968-1N5969)
Military qualification (JAN, JANTX, JANTXV, JANS)
Surface mount equivalents available
Voltage regulation over broad current and temperature range
Wide voltage selection (3.3V to 390V)
Standard 5% tolerance, tighter tolerances (2%, 1%) available
Flexible axial-lead mounting
Non-sensitive to ESD
Radiation hard

Application scenarios

Voltage regulation in high-reliability and military applications
aerospace systems
harsh environment electronics

Product FAQ

1. Is 1N4979 available for RFQ?

Yes. 1N4979 by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for 1N4979?

Pricing for 1N4979 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of 1N4979?

1N4979 is a Microchip Diodes & Rectifiers with 1N4954 Thermal Impedance 10ms: 1.8°C/W and 1N5968 Thermal Impedance 10ms: 3.0°C/W. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for 1N4979?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can 1N4979 be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to 1N4979?

Yes. If 1N4979 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Diodes & Rectifiers parts or compatible alternatives.

RFQ

Part Number:

1N4979

Manufacturer:

Microchip

Looking for Pricing? Contact us for volume pricing.

Shipping & Warranty

Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

Unishop Global Export: 1-7 days, $40.00

Guaranteed Delivery: Door-to-door in 30 days

Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

Feature

30-Day Guarantee
Fasted Delivery
Hassle-Free Returns
Secure payment method

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.