SMBJ48A-TR SMBJ48A-TR is a unidirectional TVS diode from STMicroelectronics with 48V reverse standoff voltage, 77.4V clamping voltage, and 600W peak pulse power. It comes in a DO-214AA (SMB) surface mount package.
Mfr Part #:

SMBJ48A-TR

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
SMBJ48A-TR is a unidirectional TVS diode from STMicroelectronics with 48V reverse standoff voltage, 77.4V clamping voltage, and 600W peak pulse power. It comes in a DO-214AA (SMB) surface mount package.
Total Stock: 179,221 pcs
$ Price Range: $0.12 - $0.59

SMBJ48A-TR Available from 4 distributors

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152,500 pcs
152500 pcs On Request 1 On Request On Request On Request On Request On Request
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14,547 pcs
14547 pcs On Request 1 On Request On Request On Request On Request On Request
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12,073 pcs
12073 pcs On Request 1 On Request On Request On Request On Request On Request
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101 pcs
101 pcs On Request 1 On Request On Request 1110+ On Request On Request

SMBJ48A-TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Mounting Type
Operating Temperature
Power
Power Line Protection
Reverse Standoff Voltage
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage

SMBJ48A-TR Description

Short technical summary and product information.

The SMBJ48A-TR is a unidirectional transient voltage suppression (TVS) diode manufactured by STMicroelectronics. It is designed to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge. This device features a reverse standoff voltage of 48V and a clamping voltage of 77.4V, with a peak pulse current rating of 8.1A. It can handle 600W of peak pulse power (10/1000µs waveform). The diode operates over a junction temperature range of -55°C to 150°C. It is housed in a compact DO-214AA (SMB) surface mount package, suitable for automated assembly. The part is RoHS3 compliant, REACH unaffected, and has an MSL of 1 (unlimited). Note: datasheet must be consulted for detailed electrical characteristics.

SMBJ48A-TR Quick Information

Product Type: TVS Diode
Canonical Name: SMBJ48A-TR - TVS Diode, Unidirectional, 48V Reverse Standoff, DO-214AA (SMB)
Subcategory: Unidirectional TVS Diode

SMBJ48A-TR Compliance

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

SMBJ48A-TR Estimated Pricing

Qty Low High
1+ $0.59 $0.59
10+ $0.34 $0.34
100+ $0.23 $0.23
500+ $0.18 $0.18
1,000+ $0.17 $0.17
2,500+ $0.12 $0.12
5,000+ $0.12 $0.12

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

SMBJ48A-TR Features

  • 600W peak pulse power dissipation.
  • Unidirectional TVS diode for 48V lines.
  • 77.4V clamping voltage at 8.1A peak pulse.
  • Surface mount DO-214AA (SMB) package.
  • RoHS3 compliant and REACH unaffected.

SMBJ48A-TR Applications

  • Protects 48V power supply lines.
  • Used in telecom and industrial equipment.
  • Suitable for voltage clamping in automotive systems.
  • Ideal for general purpose transient suppression.

SMBJ48A-TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the SMBJ48A-TR?

48V.

What is the clamping voltage?

77.4V.

What is the peak pulse current rating?

8.1A.

What is the peak pulse power?

600W.

What is the package type?

DO-214AA (SMB).

Is it unidirectional or bidirectional?

Unidirectional.

What is the operating temperature range?

-55°C to 150°C (junction).

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