1N975B The 1N975B is a 39V Zener Diode from ON Semiconductor with 500mW power dissipation and ±5% tolerance. It is housed in a DO-35 through-hole package.
Mfr Part #:

1N975B

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N975B is a 39V Zener Diode from ON Semiconductor with 500mW power dissipation and ±5% tolerance. It is housed in a DO-35 through-hole package.
Total Stock: 49 pcs
$ Price Range: $1.93

1N975B Available from 1 distributor

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1N975B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Impedance (Max) (Zzt)
Impedance (Zzk) (Maximum @ IZK = 1.0 mA)
Lead Style
Mounting Type
Operating Temperature
Power
Power Derating Factor (Above 75°C)
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Voltage
Zener Test Current (IZT)
Zener Voltage (Minimum/Nominal/Maximum)

1N975B Description

Short technical summary and product information.

The 1N975B is a 39V Zener Diode from ON Semiconductor, part of the 1N957B-1N979B series. It features a nominal zener voltage of 39V with a tolerance of ±5%, ensuring precise voltage regulation. The diode can dissipate up to 500mW of power at lead temperatures up to 75°C, with a derating factor of 4.0 mW/°C above 75°C.

 

Electrical characteristics include a maximum dynamic impedance of 80Ω at a test current of 3.2mA, and a low reverse leakage current of 5µA at 29.7V. The device is designed for general purpose voltage regulation, overvoltage protection, and clamping applications.

 

The 1N975B is packaged in a DO-35 (DO-204AH) axial lead through-hole package, suitable for manual or automated insertion. It operates over a wide temperature range of -65°C to 200°C, making it suitable for demanding environments.

1N975B Quick Information

Product Type: Zener Diode
Series: 1N957B-1N979B
Canonical Name: 1N975B Zener Diode
Subcategory: Single Zener Diode

1N975B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

1N975B Estimated Pricing

Qty Low High
439+ $1.93 $1.93

Estimated market price range - modelled values for guidance only, not live distributor offers.

1N975B Features

  • Nominal zener voltage of 39V.
  • Power dissipation rating of 500mW.
  • ±5% tolerance on zener voltage.
  • Maximum impedance of 80Ω at 3.2mA.
  • Operating temperature range -65°C to 200°C.

1N975B Applications

  • Used in voltage regulation circuits.
  • Ideal for overvoltage protection.
  • Suitable for general purpose clamping.
  • Applicable in power supply designs.

1N975B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the nominal zener voltage of the 1N975B?

The nominal zener voltage is 39V with a tolerance of ±5%.

What is the maximum zener current for the 1N975B?

The maximum zener current (IZM) is 7.8 mA.

What package is the 1N975B available in?

The 1N975B is available in a DO-35 (DO-204AH) axial lead through-hole package.

What is the power dissipation rating of the 1N975B?

The power dissipation is 500 mW at lead temperatures up to 75°C, with derating above 75°C at 4.0 mW/°C.

What is the dynamic impedance of the 1N975B?

The maximum dynamic impedance is 80 Ω at a test current of 3.2 mA.

What is the reverse leakage current of the 1N975B?

The reverse leakage current is 5 µA maximum at 29.7 V reverse voltage.

What is the operating temperature range of the 1N975B?

The operating temperature range is -65°C to 200°C.

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