SMCJ15A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCJ15A-M3/9AT is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 15V reverse standoff voltage class and provides transient overvoltage protection for general-purpose applications. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified when electrical performance parameters and mechanical compatibility align within the specified tolerance ranges for this product category.

Substiute Parts

SMCJ15A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 994SMCJ15A-M3/9AT Datasheet

Current PartRFQ

SMCJ15A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 6876SMCJ15A-E3/57T Datasheet

DirectRFQ

1SMC15A TR13 PBFREE

Central Semiconductor CorpIn Stock: 34321SMC15A TR13 PBFREE Datasheet

DirectRFQ

SMCJ15A

EVVO SemiIn Stock: 359272SMCJ15A Datasheet

DirectRFQ

SMCJ15A

EVVO SemiIn Stock: 359272SMCJ15A Datasheet

DirectRFQ

SMCJ15A

EVVO SemiIn Stock: 359272SMCJ15A Datasheet

DirectRFQ

SMCJ15A-13-F

Diodes IncorporatedIn Stock: 16269SMCJ15A-13-F Datasheet

DirectRFQ

SMCJ15A-TP

Micro Commercial CoIn Stock: 3883SMCJ15A-TP Datasheet

DirectRFQ

SMCJ15A-TR

STMicroelectronicsIn Stock: 18185SMCJ15A-TR Datasheet

MFR RecommendedRFQ

SMDJ15A

Alpha & Omega Semiconductor Inc.In Stock: 15358SMDJ15A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ15A-M3/9AT are classified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 24.4V
• Current - Peak Pulse (10/1000µs): 61.5A
• Power - Peak Pulse: 1500W (1.5kW)
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

Packaging Variants: Parts are grouped by packaging format (Tape & Reel, Cut Tape, Digi-Reel) which affects supply chain and assembly processes but does not alter electrical performance.

Manufacturer Variants: Multiple manufacturers produce equivalent devices meeting the same electrical specifications and package requirements.

Parameter Comparison

Engineering Selection Recommendations

Full Electrical Equivalents (Direct Substitution): SMCJ15A-E3/57T, 1SMC15A TR13 PBFREE, SMCJ15A-13-F, and SMCJ15A-TP meet all electrical specifications of the SMCJ15A-M3/9AT. These parts are Active status and ROHS3 compliant. Selection among these variants depends on packaging format requirements (Tape & Reel vs. Cut Tape) and operating temperature range needs.

Partial Compatibility Parts: SMCJ15A (EVVO Semi) matches voltage and current specifications but features a different package variant (DO-214AC, SMA) and reduced peak pulse power (600W vs. 1500W). This part is suitable only if the application circuit design accommodates the SMA package footprint and lower power dissipation rating.

Non-Equivalent Parts: SMCJ15A-TR (STMicroelectronics) and SMDJ15A (Alpha & Omega Semiconductor Inc.) exhibit deviations in clamping voltage and peak pulse current that exceed substitution tolerance. SMCJ15A-TR specifies 32.5V clamping voltage and 308A peak pulse current. SMDJ15A specifies 123A peak pulse current and 3000W peak pulse power. These parts are not direct substitutes for the SMCJ15A-M3/9AT.

Compliance Verification: All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all listed alternatives.

Frequently Asked Questions (FAQ)

Q: Can SMCJ15A-E3/57T replace SMCJ15A-M3/9AT in production? A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications (15V standoff, 16.7V breakdown, 24.4V clamping, 61.5A peak pulse, 1500W peak power). The difference is packaging format: SMCJ15A-M3/9AT is supplied in Tape & Reel, while SMCJ15A-E3/57T is supplied in Cut Tape. Assembly process compatibility must be confirmed with your manufacturing equipment.

Q: What is the difference between DO-214AB and DO-214AC packages? A: DO-214AB (SMC) and DO-214AC (SMA) are distinct surface mount package outlines with different footprints and lead configurations. SMCJ15A (EVVO Semi) uses DO-214AC (SMA) package, which is not mechanically compatible with PCB designs specified for DO-214AB (SMC). Package substitution requires PCB layout redesign.

Q: Why is SMCJ15A (EVVO Semi) listed if it has lower power rating? A: SMCJ15A from EVVO Semi specifies 600W peak pulse power versus 1500W for the main part. This represents a significant derating and is listed for reference only. Use this part only if circuit analysis confirms the application requires less than 600W peak pulse dissipation and accepts the SMA package footprint.

Q: Are SMCJ15A-TR and SMDJ15A suitable alternatives? A: No. SMCJ15A-TR exhibits 32.5V clamping voltage (vs. 24.4V specified) and 308A peak pulse current (vs. 61.5A specified). SMDJ15A specifies 123A peak pulse current and 3000W peak power, both exceeding the original part specifications. These deviations place them outside the substitution tolerance for this product category.

Q: Does operating temperature range affect substitution eligibility? A: Operating temperature range is a design parameter. 1SMC15A TR13 PBFREE and SMCJ15A (EVVO Semi) extend to -65°C minimum, while SMCJ15A-TP extends to 175°C maximum. If your application operates within -55°C to 150°C, all listed equivalents are suitable. If extended temperature operation is required, select parts with matching or wider temperature specifications.

Q: What is the significance of "PBFREE" designation in 1SMC15A TR13 PBFREE? A: PBFREE indicates lead-free solder compatibility, confirming RoHS compliance. This is a manufacturing process designation and does not affect electrical performance or substitution eligibility.