SMBJ8.5A-13-F Equivalent & Substitute Parts

Part Overview

The SMBJ8.5A-13-F is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose transient voltage protection in surface-mount applications. This component operates with an 8.5V reverse standoff voltage and provides 14.4V maximum clamping voltage at peak pulse current. The part is Active status and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements.

Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and operational parameters that ensure functional interchangeability within the specified application envelope.

Substiute Parts

SMBJ8.5A-13-F

Diodes IncorporatedIn Stock: 4313SMBJ8.5A-13-F Datasheet

Current PartRFQ

SMBJ8.5A

Taiwan Semiconductor CorporationIn Stock: 44396SMBJ8.5A Datasheet

DirectRFQ

SMBJ8.5A

Taiwan Semiconductor CorporationIn Stock: 44396SMBJ8.5A Datasheet

DirectRFQ

SMBJ8.5A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1970SMBJ8.5A-E3/52 Datasheet

DirectRFQ

SMBJ8V5A

Fairchild SemiconductorIn Stock: 35175SMBJ8V5A Datasheet

DirectRFQ

SM6T10A

STMicroelectronicsIn Stock: 15265SM6T10A Datasheet

MFR RecommendedRFQ

SM6T10A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 3930SM6T10A-E3/5B Datasheet

MFR RecommendedRFQ

SM6T10AY

STMicroelectronicsIn Stock: 3405SM6T10AY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ8.5A-13-F are classified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 8.5V ± tolerance
• Voltage - Clamping (Max) @ Ipp: 14.4V or compatible range
• Current - Peak Pulse (10/1000µs): 41.7A or higher
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional (1 channel)

Grouping Logic:

• Group 1 (Direct Electrical Match): Parts with identical standoff voltage (8.5V), clamping voltage (14.4V), and peak pulse current specifications
• Group 2 (Alternate Standoff Voltage): Parts with 8.55V standoff voltage and compatible clamping characteristics, suitable for applications with minor voltage tolerance variations

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Performance):

SMBJ8.5A (Taiwan Semiconductor Corporation), SMBJ8.5A-E3/52 (Vishay), and SMBJ8V5A (Fairchild) provide direct electrical equivalence to the SMBJ8.5A-13-F. All three maintain 8.5V reverse standoff voltage, 14.4V clamping voltage, and 600W peak pulse power rating. The SMBJ8.5A variant from Taiwan Semiconductor offers slightly higher peak pulse current (43A vs. 41.7A), providing additional margin. All parts are Active status and RoHS3 compliant.

Compatible Alternatives (Minor Parameter Variation):

SM6T10A-E3/5B (Vishay) operates at 8.55V standoff voltage with 14.5V clamping voltage, representing a 0.05V increase in standoff voltage and 0.1V increase in clamping voltage. This part qualifies as a compatible alternative for applications tolerating minor voltage variations and extends the operating temperature range to -65°C. The part is RoHS3 compliant and Active status.

Higher Performance Alternatives (Enhanced Specifications):

SM6T10A and SM6T10AY (STMicroelectronics) feature 8.55V standoff voltage with significantly higher peak pulse current (215A at 8/20µs pulse width) and 18.6V clamping voltage. These parts are suitable for applications requiring enhanced transient suppression capability and are qualified to AEC-Q101 automotive standards (SM6T10AY). Both are Active status and RoHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can SMBJ8.5A from Taiwan Semiconductor replace SMBJ8.5A-13-F?

A: Yes. Both parts maintain identical reverse standoff voltage (8.5V), clamping voltage (14.4V), and power rating (600W). The Taiwan Semiconductor variant provides 43A peak pulse current versus 41.7A, offering additional performance margin. Both are Surface Mount DO-214AA (SMB) package, Active status, and RoHS3 compliant.

Q: What is the difference between SMBJ8.5A-E3/52 and SMBJ8.5A-13-F?

A: SMBJ8.5A-E3/52 (Vishay) is electrically identical to SMBJ8.5A-13-F (Diodes Incorporated) with matching 8.5V standoff voltage, 14.4V clamping voltage, 41.7A peak pulse current, and 600W power rating. The primary difference is manufacturer designation and packaging format (Tape & Reel). Both are suitable for direct substitution in the same application.

Q: Can SM6T10A-E3/5B be used as a substitute?

A: SM6T10A-E3/5B is a compatible alternative with 8.55V standoff voltage (0.05V higher) and 14.5V clamping voltage (0.1V higher). It maintains 41A peak pulse current and 600W power rating. This part extends the operating temperature range to -65°C and is suitable for applications tolerating minor voltage parameter variations. Verify application requirements before substitution.

Q: What are the advantages of SM6T10A or SM6T10AY over SMBJ8.5A-13-F?

A: SM6T10A and SM6T10AY provide significantly higher peak pulse current (215A at 8/20µs) and higher clamping voltage (18.6V), offering enhanced transient suppression capability. SM6T10AY includes AEC-Q101 automotive qualification. These parts are suitable for applications requiring superior transient protection performance. Both maintain the same DO-214AA (SMB) package and 600W power rating.

Q: Are all substitute parts available in the same package?

A: Yes. All listed substitute parts use DO-214AA (SMB) Surface Mount package, ensuring mechanical and footprint compatibility with SMBJ8.5A-13-F. Mounting type is Surface Mount for all variants.

Q: What compliance certifications apply to these parts?

A: All substitute parts are RoHS3 compliant and REACH unaffected. SM6T10AY additionally qualifies to AEC-Q101 automotive standards. All parts carry ECCN EAR99 classification and HTSUS code 8541.10.0080.