1N990B 1N990B is a 160V Zener diode from Microchip Technology with 500mW power dissipation and ±5% tolerance in a DO-7 through-hole package.
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1N990B

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
1N990B is a 160V Zener diode from Microchip Technology with 500mW power dissipation and ±5% tolerance in a DO-7 through-hole package.
Total Stock: 161 pcs

1N990B Available from 1 distributor

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1N990B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Lead Style
Military Grade
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Polarity
Power
Power Dissipation
Reverse Leakage Current
Storage Temperature
Supplier Device Package
Termination Style
Tolerance
Voltage
Weight
Zener Impedance (Zzt)
Zener Voltage (Nominal)

1N990B Description

Short technical summary and product information.

The 1N990B is a Zener voltage regulator diode from Microchip Technology, part of the 1N957B-1N992B series of 0.5 watt Zener diodes. It provides a nominal Zener voltage of 160V with a tolerance of ±5%, making it suitable for voltage regulation and reference applications.

 

This diode features a power dissipation of 500mW and a forward voltage of 1.1V at 200mA. The reverse leakage current is 5µA at 121.6V, and the Zener impedance (Zzt) is 1700Ω. It operates over a wide temperature range from -65°C to 175°C.

 

The 1N990B is housed in a DO-7 (DO-204AA) glass axial-leaded package, designed for through-hole mounting. The cathode is indicated by a band on the body. This package offers robust mechanical and thermal performance for general-purpose voltage regulation.

1N990B Quick Information

Product Type: Zener Diode
Series: 1N990B
Canonical Name: 1N990B Zener Diode 160V 500mW ±5% DO-7
Subcategory: Single Zener Diode

1N990B Compliance

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

1N990B Features

  • 160V nominal Zener voltage regulation.
  • 500mW power dissipation capability.
  • ±5% voltage tolerance for precision.
  • DO-7 through-hole axial package.
  • Wide -65°C to 175°C operating range.

1N990B Applications

  • Voltage regulation in low-power circuits.
  • Overvoltage protection and clamping.
  • Reference voltage in analog designs.

1N990B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N990B?

The nominal Zener voltage is 160V.

What is the power dissipation of the 1N990B?

The power dissipation is 500mW.

What is the tolerance of the 1N990B?

The tolerance is ±5%.

What is the forward voltage of the 1N990B?

The forward voltage is 1.1V at 200mA.

What is the operating temperature range?

The operating temperature range is -65°C to 175°C.

What package is the 1N990B available in?

The 1N990B is available in a DO-7 (DO-204AA) through-hole package.

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