SZ1SMA48CAT3G SZ1SMA48CAT3G is a 48V bidirectional Zener TVS diode from Littelfuse Inc. with 77.4V clamping voltage and 400W peak pulse power, in a surface-mount SMA package.
Mfr Part #:

SZ1SMA48CAT3G

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
SZ1SMA48CAT3G is a 48V bidirectional Zener TVS diode from Littelfuse Inc. with 77.4V clamping voltage and 400W peak pulse power, in a surface-mount SMA package.
Total Stock: 48 pcs
$ Price Range: $0.17 - $0.83

SZ1SMA48CAT3G Available from 1 distributor

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SZ1SMA48CAT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Bidirectional Channels
Capacitance @ Frequency
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage (V_RWM)
Supplier Device Package
Tape & Reel
Type
Voltage

SZ1SMA48CAT3G Description

Short technical summary and product information.

The SZ1SMA48CAT3G is a bidirectional Zener TVS diode designed by Littelfuse Inc. for overvoltage protection in automotive applications. It features a reverse standoff voltage of 48V and a clamping voltage of 77.4V at a peak pulse current of 5.2A. With a peak pulse power rating of 400W, this device provides robust transient voltage suppression.

 

This TVS diode is housed in a DO-214AC (SMA) surface-mount package, making it suitable for automated assembly and space-constrained designs. It operates over a wide temperature range from -65°C to 150°C, ensuring reliability in harsh environments. The component has a capacitance of 135pF at 1MHz, which is typical for Zener-based TVS diodes.

 

Designed for automotive use, the SZ1SMA48CAT3G meets the rigorous demands of vehicle electronics, protecting sensitive circuits from voltage spikes and transients. Its bidirectional configuration allows it to clamp both positive and negative surges, simplifying circuit layout. The part is RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified.

SZ1SMA48CAT3G Quick Information

Product Type: TVS Diode
Series: SZ1SMA
Canonical Name: SZ1SMA48CAT3G Littelfuse TVS Diode, 48V Reverse Standoff, 77.4V Clamping, SMA
Subcategory: Zener TVS

SZ1SMA48CAT3G Compliance

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

SZ1SMA48CAT3G Estimated Pricing

Qty Low High
1+ $0.83 $0.83
10+ $0.51 $0.51
100+ $0.33 $0.33
500+ $0.25 $0.25
1,000+ $0.21 $0.21
2,500+ $0.20 $0.20
5,000+ $0.17 $0.17

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

SZ1SMA48CAT3G Features

  • 48V reverse standoff voltage TVS diode.
  • 77.4V clamping voltage at 5.2A peak current.
  • 400W peak pulse power dissipation.
  • Bidirectional Zener TVS in SMA package.
  • Automotive-grade operating temperature range.

SZ1SMA48CAT3G Applications

  • Protects automotive electronic control modules.
  • Suitable for 48V DC power rail transient suppression.
  • Used in sensor and actuator interface protection.

SZ1SMA48CAT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SZ1SMA48CAT3G?

The reverse standoff voltage (V_RWM) is 48V.

What is the clamping voltage of this TVS diode?

The clamping voltage (V_C) is 77.4V at a peak pulse current of 5.2A.

What is the peak pulse power rating?

The peak pulse power (P_PP) is 400W.

What package does the SZ1SMA48CAT3G come in?

It is available in a DO-214AC (SMA) surface-mount package.

Is this TVS diode bidirectional?

Yes, it has 1 bidirectional channel.

What is the operating temperature range?

The operating temperature range is -65°C to 150°C (junction temperature).

What is the capacitance of this device?

The capacitance is 135pF at 1MHz.

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