AQ4021-01FTG-C Littelfuse AQ4021-01FTG-C is a 500W Zener TVS diode with 5V reverse standoff voltage, 20.5V clamping voltage, and 25A peak pulse current in a surface-mount SOD-323 package.
Mfr Part #:

AQ4021-01FTG-C

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse AQ4021-01FTG-C is a 500W Zener TVS diode with 5V reverse standoff voltage, 20.5V clamping voltage, and 25A peak pulse current in a surface-mount SOD-323 package.
Total Stock: 9,000 pcs
$ Price Range: $0.23 - $1.07

AQ4021-01FTG-C Available from 1 distributor

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AQ4021-01FTG-C Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Bidirectional Channels
Capacitance @ 1MHz
Capacitance @ Frequency
Clamping Voltage (Typical @ 8/20µs)
Current
Mounting Type
Number of Channels
Operating Temperature
Operating Temperature Range
Package / Case
Peak Pulse Current (8/20µs)
Peak Pulse Power
Power
Power Line Protection
Reverse Standoff Voltage
Supplier Device Package
Tape & Reel
Technology
Type
Voltage

AQ4021-01FTG-C Description

Short technical summary and product information.

The Littelfuse AQ4021-01FTG-C is a single-channel Zener TVS diode designed for transient voltage suppression in a compact SOD-323 surface-mount package.

 

It features a reverse standoff voltage of 5V, a typical clamping voltage of 20.5V under an 8/20µs waveform, and a peak pulse current rating of 25A. With a peak pulse power dissipation of 500W, it provides robust protection for sensitive circuits.

 

The device has a low capacitance of 2.5pF at 1MHz, making it suitable for high-speed signal lines. It operates over an industrial temperature range of -40°C to 150°C and is suitable for applications including Automotive, CAN, Ethernet, and USB interfaces.

AQ4021-01FTG-C Quick Information

Product Type: TVS Diode
Series: AQ4021
Canonical Name: Littelfuse AQ4021-01FTG-C TVS Diode
Subcategory: Zener TVS Diode

AQ4021-01FTG-C Compliance

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

AQ4021-01FTG-C Estimated Pricing

Qty Low High
1+ $1.07 $1.07
10+ $0.67 $0.67
100+ $0.43 $0.43
500+ $0.34 $0.34
1,000+ $0.30 $0.30
3,000+ $0.23 $0.23

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

AQ4021-01FTG-C Features

  • 500W peak pulse power dissipation.
  • Low capacitance of 2.5pF at 1MHz.
  • Surface-mount SOD-323 package.
  • Wide operating temperature range -40°C to 150°C.
  • Automotive, CAN, Ethernet, USB applications.

AQ4021-01FTG-C Applications

  • Protects automotive electronic control modules.
  • Suitable for CAN bus transceiver protection.
  • Ideal for Ethernet interface transient suppression.
  • Used in USB port overvoltage protection.

AQ4021-01FTG-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the AQ4021-01FTG-C?

The reverse standoff voltage is 5V.

What is the clamping voltage of this TVS diode?

The typical clamping voltage at 8/20µs waveform is 20.5V.

What is the peak pulse current rating?

The peak pulse current is 25A at 8/20µs.

What package does the AQ4021-01FTG-C come in?

It comes in a surface-mount SC-76, SOD-323 package with supplier device package SOD-323.

What is the capacitance of this device?

The capacitance is 2.5pF at 1MHz.

What is the operating temperature range?

The operating temperature range is -40°C to 150°C.

What applications is this part suitable for?

It is suitable for Automotive, CAN, Ethernet, and USB applications.

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