SMCJ36A V7G Equivalent & Substitute Parts

Part Overview

The SMCJ36A V7G is a unidirectional transient voltage suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for telecom applications. This component features a 36V reverse standoff voltage with a 58.1V maximum clamping voltage and 27A peak pulse current capability in a surface mount DO-214AB (SMC) package. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Substiute Parts

SMCJ36A V7G

Taiwan Semiconductor CorporationIn Stock: 1133SMCJ36A V7G Datasheet

Current PartRFQ

SMCJ36A

EVVO SemiIn Stock: 21275SMCJ36A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMCJ36A V7G is determined by strict equivalence across the following critical electrical parameters:

• Voltage Rating: Reverse standoff voltage of 36V and breakdown voltage minimum of 40V
• Clamping Voltage: Maximum clamping voltage of 58.1V at peak pulse current
• Peak Pulse Current: Minimum 25.9A capability (original part rated 27A)
• Power Dissipation: Peak pulse power rating of 600W or greater
• Zener Type: Unidirectional TVS diode configuration
• Temperature Range: Operating range of -55°C to 150°C or broader
• Package Compatibility: Surface mount configuration with mechanical fit in DO-214AB or equivalent footprint
• Compliance: ROHS3 compliance and MSL Level 1 rating

The SMCJ36A from EVVO Semi meets these substitution criteria with equivalent voltage specifications and compatible surface mount packaging, though with reduced peak pulse current (25.9A versus 27A) and lower peak pulse power (600W versus 1500W).

Parameter Comparison

Engineering Selection Recommendations

The SMCJ36A from EVVO Semi is electrically equivalent to the discontinued SMCJ36A V7G for voltage protection specifications. Both components maintain identical reverse standoff voltage (36V), breakdown voltage (40V minimum), and clamping voltage (58.1V maximum) characteristics required for transient voltage suppression in telecom applications.

The EVVO Semi substitute maintains ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements. The extended operating temperature range (-65°C to 150°C versus -55°C to 150°C) provides additional thermal margin.

Design considerations must account for the reduced peak pulse current specification (25.9A versus 27A) and significantly lower peak pulse power rating (600W versus 1500W). Applications requiring the full 27A peak pulse current or 1500W power dissipation capability must evaluate whether the 4% current reduction and 60% power reduction are acceptable within circuit protection margins. The SMA package (DO-214AC) footprint is mechanically compatible with SMC (DO-214AB) PCB layouts for standard surface mount assembly.

Frequently Asked Questions (FAQ)

Q: Can the SMCJ36A from EVVO Semi directly replace the discontinued SMCJ36A V7G in existing designs?

A: The EVVO Semi SMCJ36A provides electrical equivalence for voltage protection specifications with identical standoff, breakdown, and clamping voltages. The SMA package footprint is mechanically compatible with SMC PCB layouts. However, the reduced peak pulse current (25.9A versus 27A) and peak pulse power (600W versus 1500W) must be evaluated against circuit protection requirements to confirm suitability.

Q: What are the key electrical differences between these two parts?

A: The primary differences are peak pulse current (27A original versus 25.9A substitute, a 4% reduction) and peak pulse power dissipation (1500W original versus 600W substitute, a 60% reduction). Voltage specifications—reverse standoff, breakdown, and clamping—are identical between both parts.

Q: Are the package dimensions compatible?

A: Both components use surface mount packages in the DO-214 family. The original uses DO-214AB (SMC) and the substitute uses DO-214AC (SMA). These packages share compatible PCB footprints for standard surface mount assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SMCJ36A V7G and SMCJ36A from EVVO Semi are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, meeting standard manufacturing and storage requirements.

Q: What is the temperature operating range difference?

A: The original part operates from -55°C to 150°C. The EVVO Semi substitute operates from -65°C to 150°C, providing a 10°C lower temperature margin at the cold end of the operating range.

Q: Should I test the substitute part before production use?

A: Circuit protection performance depends on application-specific transient voltage profiles and peak pulse characteristics. Design validation should confirm that the reduced peak pulse current and power specifications remain within acceptable protection margins for the intended application.