1N4948 1N4948 is a 1A, 1000V rectifier diode in an axial package. It features a forward voltage of 1.2V and reverse leakage current of 500nA.
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1N4948

Available from 1 distributors
Mfr Name: Semtech
Semtech
1N4948 is a 1A, 1000V rectifier diode in an axial package. It features a forward voltage of 1.2V and reverse leakage current of 500nA.
Total Stock: 220 pcs
$ Price Range: $0.47

1N4948 Available from 1 distributor

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1N4948 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Average Rectified Forward Current
Current
Maximum Repetitive Reverse Voltage
Mounting Type
Supplier Device Package
Voltage

1N4948 Description

Short technical summary and product information.

The 1N4948 is a rectifier diode manufactured by Semtech. It is designed for general-purpose rectification applications requiring a maximum repetitive reverse voltage of 1000V and an average rectified forward current of 1A. The diode has a maximum forward voltage of 1.2V at 1A and a maximum reverse leakage current of 500nA at 1000V.

 

This device is housed in an axial lead package with through-hole mounting, making it suitable for traditional PCB assembly. The axial package allows for easy insertion and soldering in through-hole boards.

 

As a high-voltage rectifier, the 1N4948 is commonly used in power supply circuits, voltage multipliers, and other applications where high reverse voltage blocking is required. The diode's electrical characteristics ensure reliable performance in standard rectification circuits.

1N4948 Quick Information

Product Type: Rectifier Diode
Canonical Name: 1N4948 Rectifier Diode, 1A, 1000V, Axial
Subcategory: Rectifier Diode, Axial

1N4948 Compliance

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

1N4948 Estimated Pricing

Qty Low High
1+ $0.47 $0.47

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

1N4948 Features

  • Rated for 1A average forward current.
  • Maximum repetitive reverse voltage of 1000V.
  • Forward voltage of 1.2V at 1A.
  • Axial through-hole package for easy mounting.

1N4948 Applications

  • Used in power supply rectification circuits.
  • Suitable for high-voltage DC applications.
  • Ideal for voltage multiplier circuits.
  • Common in general-purpose rectifier designs.

1N4948 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive reverse voltage of the 1N4948?

1000V.

What is the average rectified forward current rating?

1A.

What is the forward voltage drop at 1A?

1.2V maximum.

What is the package type of the 1N4948?

Axial through-hole.

What is the reverse leakage current at 1000V?

500nA maximum.

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