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1N4554B 1N4554B is a 6.2V, 50W Zener diode in a DO-5 (DO-203AB) stud mount package. It features a low zener impedance of 0.14Ω and operates over -65°C to 175°C.
Mfr Part #:

1N4554B

Available from 1 distributors
Mfr Name: Solid State Devices Inc (SSDI)
Solid State Devices Inc (SSDI)
1N4554B is a 6.2V, 50W Zener diode in a DO-5 (DO-203AB) stud mount package. It features a low zener impedance of 0.14Ω and operates over -65°C to 175°C.
Total Stock: 12 pcs

1N4554B Available from 1 distributor

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1N4554B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Forward Voltage
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Package Type
Power
Power Dissipation
Reverse Leakage Current
Supplier Device Package
Tape & Reel
Tolerance
Voltage
Zener Impedance
Zener Voltage

1N4554B Description

Short technical summary and product information.

The 1N4554B is a Zener diode manufactured by Solid State Devices Inc (SSDI). It provides a nominal Zener voltage of 6.2V with a tolerance of ±10% and a power dissipation rating of 50W. The device exhibits a low Zener impedance of 0.14Ω, ensuring stable voltage regulation. Forward voltage is 1.5V at 10A, and reverse leakage current is 20µA at 2V.

 

The diode is housed in a rugged DO-203AB (DO-5) stud mount package, suitable for high-power applications requiring efficient heat dissipation. It supports an operating temperature range from -65°C to 175°C, making it suitable for extreme environments. The stud mount design allows for secure attachment to heatsinks.

 

Typical applications include voltage regulation, overvoltage protection, and reference voltage sources in power supplies and industrial equipment. The 1N4554B is RoHS3 compliant and REACH unaffected, with an MSL rating of 1 (unlimited).

1N4554B Quick Information

Product Type: Zener Diode
Canonical Name: 1N4554B Zener Diode, 6.2V, 50W, DO-5
Subcategory: Single Zener Diode

1N4554B Compliance

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

1N4554B Features

  • Zener voltage of 6.2V with ±10% tolerance.
  • Power dissipation rating of 50W.
  • Low Zener impedance of 0.14Ω.
  • Stud mount DO-5 package for heat sinking.
  • Wide operating temperature range -65°C to 175°C.

1N4554B Applications

  • Voltage regulation in high-power power supplies.
  • Overvoltage protection circuits.
  • Reference voltage sources for industrial equipment.
  • Clamping and surge suppression applications.

1N4554B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1N4554B?

6.2V.

What is the power dissipation rating?

50W.

What is the forward voltage?

1.5V at 10A.

What is the tolerance of the Zener voltage?

±10%.

What is the operating temperature range?

-65°C to 175°C.

What package is the 1N4554B available in?

DO-203AB (DO-5) stud mount.

What is the reverse leakage current?

20µA at 2V.

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