SMBJ9.0A Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The SMBJ9.0A is a unidirectional Zener-type transient voltage suppressor diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. The device features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 39A peak pulse current capability in the SMB (DO-214AA) package. This component is actively produced and RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the SMBJ series.

Substiute Parts

SMBJ9.0A

Bourns Inc.In Stock: 3177SMBJ9.0A Datasheet

Current PartRFQ

SMBJ9.0A

Taiwan Semiconductor CorporationIn Stock: 3195SMBJ9.0A Datasheet

DirectRFQ

SMBJ9.0A-13-F

Diodes IncorporatedIn Stock: 12221SMBJ9.0A-13-F Datasheet

SimilarRFQ

SMBJ9V0A

Taiwan Semiconductor CorporationIn Stock: 7015SMBJ9V0A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ9.0A are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

• Voltage - Reverse Standoff: 9V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 15.4V (exact match required)
• Current - Peak Pulse: 39A minimum (40A acceptable within tolerance)
• Power - Peak Pulse: 600W (exact match required)
• Operating Temperature Range: -55°C to 150°C (exact match required)
• Package / Case: DO-214AA / SMB (exact match required)
• Type: Zener, Unidirectional (exact match required)

Parts meeting all these criteria are considered direct electrical and mechanical equivalents, regardless of manufacturer. Variations in peak pulse current within 1A tolerance (39-40A) are acceptable due to manufacturing process variations within the same device class.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts meet the electrical and mechanical requirements for direct replacement of the SMBJ9.0A. Selection among equivalent parts should be based on:

• Availability: Taiwan Semiconductor SMBJ9.0A (3100 pcs), Diodes Incorporated SMBJ9.0A-13-F (12200 pcs), Taiwan Semiconductor SMBJ9V0A (6986 pcs)
• Compliance Status: All parts are RoHS3 compliant and ECCN EAR99 classified
• Manufacturing Tolerance: Taiwan Semiconductor SMBJ9.0A operates at 40A peak pulse current, within acceptable tolerance of the 39A specification
• Packaging: Bourns and Diodes Incorporated parts supplied in Tape & Reel; Taiwan Semiconductor parts supplied in Tape & Reel (SMBJ9V0A) and standard packaging (SMBJ9.0A)

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0A (Taiwan Semiconductor) substitute for SMBJ9.0A (Bourns)?

A: Yes. Both parts share identical electrical specifications (9V standoff, 15.4V clamping, 600W peak power) and the same DO-214AA/SMB package. The Taiwan Semiconductor variant operates at 40A peak pulse current versus 39A for Bourns, which is within manufacturing tolerance for this device class and does not affect circuit performance.

Q: What is the difference between SMBJ9.0A and SMBJ9V0A?

A: Both are manufactured by Taiwan Semiconductor and share identical electrical parameters (9V standoff, 15.4V clamping, 39A peak pulse, 600W power). The part number designation differs (9.0A versus 9V0A), but they are functionally equivalent in the DO-214AA/SMB package.

Q: Are all substitute parts in the same package?

A: Yes. All listed parts use the DO-214AA package, also designated as SMB. This ensures mechanical and thermal compatibility in surface-mount applications.

Q: Do substitute parts meet the same compliance requirements?

A: Yes. All substitute parts are RoHS3 compliant, ECCN EAR99 classified, and carry HTSUS code 8541.10.0080, matching the original SMBJ9.0A specifications.

Q: Can I use SMBJ9.0A-13-F as a direct replacement?

A: Yes. The Diodes Incorporated SMBJ9.0A-13-F is electrically and mechanically equivalent, with 39A peak pulse current and 15.4V clamping voltage in the SMB package. The "-13-F" suffix indicates Diodes Incorporated's internal product designation and does not affect compatibility.