1N4554B The 1N4554B is a single zener diode from Unitrode, designed for voltage regulation and reference applications.
Mfr Part #:

1N4554B

Available from 1 distributors
Mfr Name: Unitrode
Unitrode
The 1N4554B is a single zener diode from Unitrode, designed for voltage regulation and reference applications.
✓ Total Stock: 2 pcs
$ Price Range: $0.02

1N4554B Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2 pcs
2 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

1N4554B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
SVHC Present

1N4554B Description

Short technical summary and product information.

The 1N4554B is a single zener diode manufactured by Unitrode. It belongs to the discrete semiconductor products category, specifically designed for zener voltage regulation and reference functions.

 

As a zener diode, the 1N4554B operates in the reverse breakdown region to provide a stable reference voltage. It is commonly used in power supply circuits, voltage regulators, and protection circuits where precise voltage clamping is required.

 

The device is packaged as a through-hole component, suitable for standard PCB mounting. Its single-diode configuration makes it a straightforward choice for basic voltage regulation needs.

1N4554B Quick Information

Product Type: Zener Diode
Canonical Name: 1N4554B Zener Diode
Subcategory: Single Zener Diode

1N4554B Compliance

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

1N4554B Estimated Pricing

Qty Low High
1+ $0.02 $0.02

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

1N4554B Features

  • 50 W power dissipation rating.
  • 6.2 V Zener voltage typical.
  • Hermetically sealed DO-5 package.
  • Operates from -65°C to +175°C.
  • JEDEC registered 1N4554B series.

1N4554B Applications

  • Voltage regulation in high-power circuits.
  • Used in military and aerospace systems.
  • Provides stable 6.2 V reference.
  • Operates across wide temperature range.
  • Overvoltage protection in DC supplies.

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