SMCJ9.0A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ9.0A-M3/9AT is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component in DO-214AB (SMC) package is designed for general-purpose transient voltage protection applications. The part is active and in production, with 880 units currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

SMCJ9.0A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 988SMCJ9.0A-M3/9AT Datasheet

Current PartRFQ

SMCJ9.0A

Taiwan Semiconductor CorporationIn Stock: 30127SMCJ9.0A Datasheet

DirectRFQ

SMCJ9.0A-13-F

Diodes IncorporatedIn Stock: 3173SMCJ9.0A-13-F Datasheet

DirectRFQ

SMCJ8.5A-13-F

Diodes IncorporatedIn Stock: 1063SMCJ8.5A-13-F Datasheet

MFR RecommendedRFQ

SMDJ9.0A

Alpha & Omega Semiconductor Inc.In Stock: 12202SMDJ9.0A Datasheet

MFR RecommendedRFQ

SMLJ9.0A

Bourns Inc.In Stock: 13110SMLJ9.0A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ9.0A-M3/9AT is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Breakdown (Min): 10V
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Package / Case: DO-214AB, SMC (surface mount compatibility)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Type: Zener, Unidirectional
• Unidirectional Channels: 1

Substitute parts are grouped into two categories:

Category 1: Direct Electrical Equivalents — Parts with identical voltage ratings (9V standoff, 10V breakdown, 15.4V clamping) and compatible package specifications. These parts maintain the same electrical protection characteristics and can be used interchangeably in most applications.

Category 2: Manufacturer-Recommended Alternatives — Parts with slight variations in peak pulse current or power dissipation ratings, or minor voltage parameter deviations. These parts are suitable for applications where the specific performance envelope allows for the stated variations.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Preferred for Pin-Compatible Replacement):

SMCJ9.0A (Taiwan Semiconductor Corporation) and SMCJ9.0A-13-F (Diodes Incorporated) are direct electrical equivalents with identical voltage parameters and package specifications. Both parts are active, ROHS3 compliant, and maintain the same operating temperature range. Selection between these and the primary part should be based on availability and procurement lead times.

Higher Power Alternatives (For Enhanced Transient Protection):

SMDJ9.0A (Alpha & Omega Semiconductor Inc.) and SMLJ9.0A (Bourns Inc.) provide doubled peak pulse power dissipation (3000W versus 1500W) while maintaining identical voltage protection characteristics. These parts are suitable for applications requiring greater transient energy absorption. Both are active and ROHS3 compliant.

Lower Voltage Alternative (For Reduced Standoff Voltage Applications):

SMCJ8.5A-13-F (Diodes Incorporated) features a reduced reverse standoff voltage of 8.5V and clamping voltage of 14.4V. This part is suitable only for applications where the lower voltage threshold is acceptable and provides a slight increase in peak pulse current capability (104.2A). This part is active and ROHS3 compliant.

All substitute parts maintain surface mount compatibility in DO-214AB (SMC) package format and operate across the same temperature range (-55°C ~ 150°C).

Frequently Asked Questions (FAQ)

Q: Can SMCJ9.0A-13-F be used as a direct replacement for SMCJ9.0A-M3/9AT?

A: Yes. Both parts share identical voltage ratings (9V standoff, 10V breakdown, 15.4V clamping), peak pulse current (97.4A), power dissipation (1500W), and package specifications (DO-214AB, SMC). The parts are electrically equivalent and pin-compatible.

Q: What is the difference between SMCJ9.0A and SMDJ9.0A?

A: Both parts maintain identical voltage protection parameters (9V standoff, 15.4V clamping). The primary difference is power dissipation: SMDJ9.0A is rated for 3000W peak pulse power compared to 1500W for SMCJ9.0A. SMDJ9.0A also exhibits higher peak pulse current (194.9A versus 97.4A). Selection depends on application transient energy requirements.

Q: Is SMCJ8.5A-13-F compatible with circuits designed for SMCJ9.0A-M3/9AT?

A: SMCJ8.5A-13-F has a lower reverse standoff voltage (8.5V versus 9V) and lower clamping voltage (14.4V versus 15.4V). This part is suitable only for applications where the reduced voltage threshold does not compromise circuit protection requirements. Verify circuit specifications before substitution.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the primary SMCJ9.0A-M3/9AT part.

Q: What is the package compatibility for all listed parts?

A: All parts use DO-214AB (SMC) surface mount package format. They are mechanically and electrically compatible for PCB assembly without modification to footprints or land patterns.

Q: Which substitute part offers the highest transient energy absorption?

A: SMDJ9.0A and SMLJ9.0A both provide 3000W peak pulse power dissipation, double that of the primary part. Both maintain identical voltage protection characteristics and are suitable for high-energy transient environments.