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1N5255B The 1N5255B is a 28V Zener diode rated for 500mW power dissipation with ±5% tolerance. It comes in a through-hole DO-35 package.
Mfr Part #:

1N5255B

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1N5255B is a 28V Zener diode rated for 500mW power dissipation with ±5% tolerance. It comes in a through-hole DO-35 package.
Total Stock: 12,000 pcs

1N5255B Available from 1 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
12,000 pcs
12000 pcs On Request 1 On Request On Request 2002 On Request On Request

1N5255B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current - Reverse Leakage @ Vr
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Package / Case
Power
Power - Max
Supplier Device Package
Tolerance
Voltage
Voltage - Forward (Vf) (Max) @ If
Voltage - Zener (Nom) (Vz)

1N5255B Description

Short technical summary and product information.

The 1N5255B is a Zener diode from ON Semiconductor designed for voltage regulation and protection circuits. It provides a nominal Zener voltage of 28V with a power dissipation rating of 500mW.

 

The diode features a ±5% tolerance on the Zener voltage, a maximum impedance of 44Ω at the Zener test current, and a forward voltage drop of 900mV at 200mA. Reverse leakage current is 100nA at 21V.

 

The device is housed in a DO-204AH (DO-35) axial-lead package, suitable for through-hole mounting. The DO-35 package is widely used in general-purpose applications.

 

Typical applications include voltage clamping, reference voltage generation, and overvoltage protection in low-power circuits.

1N5255B Quick Information

Product Type: Zener Diode
Canonical Name: 1N5255B Zener Diode 28V 500mW ±5% DO-35
Subcategory: Single Zener Diode

1N5255B Compliance

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

1N5255B Features

  • Nominal Zener voltage of 28V.
  • Rated for 500mW power dissipation.
  • ±5% tolerance on Zener voltage.
  • Package in DO-35 axial-lead.
  • Maximum impedance of 44 ohms.

1N5255B Applications

  • Used for voltage regulation in low-power circuits.
  • Ideal for overvoltage protection applications.
  • Suitable for voltage reference generation.

1N5255B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N5255B?

28V

What is the power rating of the 1N5255B?

500mW

What is the tolerance of the Zener voltage?

±5%

What is the forward voltage of the 1N5255B?

900mV at 200mA

What is the reverse leakage current?

100nA at 21V

What package does the 1N5255B come in?

DO-35 (DO-204AH axial-lead)

What is the maximum Zener impedance?

44Ω

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