SMCJ8.0A-13 Equivalent & Substitute Parts

Part Overview

The SMCJ8.0A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AB (SMC) surface mount package. This component is rated for 8V reverse standoff voltage with a 13.6V maximum clamping voltage and 110.3A peak pulse current capacity. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers for ongoing design support and procurement.

Substiute Parts

SMCJ8.0A-13

Diodes IncorporatedIn Stock: 4065SMCJ8.0A-13 Datasheet

Current PartRFQ

SMCJ8.0A-13-F

Diodes IncorporatedIn Stock: 4199SMCJ8.0A-13-F Datasheet

DirectRFQ

SMCJ8.0A

Taiwan Semiconductor CorporationIn Stock: 9369SMCJ8.0A Datasheet

DirectRFQ

SMCJ8.0A

Taiwan Semiconductor CorporationIn Stock: 9369SMCJ8.0A Datasheet

DirectRFQ

SMCJ8.0A-TP

Micro Commercial CoIn Stock: 4182SMCJ8.0A-TP Datasheet

DirectRFQ

SMCJ8V0A

Fairchild SemiconductorIn Stock: 27225SMCJ8V0A Datasheet

DirectRFQ

SMDJ8.0A

Alpha & Omega Semiconductor Inc.In Stock: 12370SMDJ8.0A Datasheet

MFR RecommendedRFQ

SMLJ8.0A

Bourns Inc.In Stock: 12900SMLJ8.0A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ8.0A-13 is determined by the following critical parameters:

• Voltage - Reverse Standoff: 8V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 13.6V (exact match required)
• Current - Peak Pulse (10/1000µs): 110.3A minimum (equal or higher acceptable)
• Power - Peak Pulse: 1500W minimum (equal or higher acceptable)
• Package / Case: DO-214AB, SMC (exact match required)
• Type: Zener, Unidirectional (exact match required)
• Operating Temperature: -55°C to 150°C minimum (equal or wider range acceptable)

Substitute parts are grouped into two categories:

Direct Equivalents (Identical Electrical Specifications): Parts meeting all critical parameters with identical or marginally higher current and power ratings, maintaining the same thermal operating range or better.

Higher-Rated Alternatives (Enhanced Performance): Parts with identical voltage specifications but higher current and power dissipation capabilities, suitable for applications requiring additional transient energy absorption margin.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SMCJ8.0A-13-F (Diodes Incorporated)

This part is the direct equivalent from the original manufacturer, maintaining identical electrical specifications and packaging. It is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. This option provides the highest design continuity with the discontinued SMCJ8.0A-13.

Secondary Recommendation: SMCJ8.0A (Taiwan Semiconductor Corporation)

This part meets all critical electrical parameters with a marginally higher peak pulse current (115A vs. 110.3A), providing additional transient margin. It is ROHS3 compliant and maintains the same operating temperature range. Higher inventory availability supports procurement reliability.

Alternative Recommendation: SMCJ8.0A-TP (Micro Commercial Co)

This part provides identical electrical specifications with an extended operating temperature range (-55°C to 175°C), offering thermal margin for high-temperature applications. It is supplied in tape and reel packaging and is ROHS3 compliant.

Higher-Power Alternatives: SMDJ8.0A (Alpha & Omega Semiconductor Inc.) and SMLJ8.0A (Bourns Inc.)

These parts maintain identical voltage specifications but provide doubled peak pulse current (220.6A) and power dissipation (3000W). Selection is appropriate for applications requiring enhanced transient energy absorption or where design margin justification is required. Both are ROHS3 compliant and maintain the -55°C to 150°C operating range.

Not Recommended: SMCJ8V0A (Fairchild Semiconductor)

Operating temperature range is not specified in available data, creating uncertainty for thermal design verification. This part should be avoided unless complete thermal specifications are independently confirmed.

Frequently Asked Questions (FAQ)

Q: Can SMCJ8.0A-13-F be used as a direct replacement for SMCJ8.0A-13?

A: Yes. SMCJ8.0A-13-F is electrically and mechanically identical to SMCJ8.0A-13, with the primary difference being packaging format (tape and reel vs. bulk) and active production status. No circuit redesign is required.

Q: What is the difference between SMCJ8.0A and SMDJ8.0A?

A: Both maintain identical voltage specifications (8V standoff, 13.6V clamping). SMDJ8.0A provides doubled peak pulse current (220.6A vs. 110.3A) and power dissipation (3000W vs. 1500W). Selection depends on transient energy requirements in the application.

Q: Are all substitute parts in the same package?

A: Yes. All listed substitutes use the DO-214AB (SMC) surface mount package, ensuring mechanical and footprint compatibility without PCB redesign.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. This is a regulatory requirement for many applications and markets.

Q: Can SMCJ8.0A-TP be used in applications exceeding 150°C?

A: SMCJ8.0A-TP is rated to 175°C junction temperature, providing 25°C additional thermal margin. Selection is appropriate for high-temperature environments where the original part's 150°C limit is insufficient.

Q: Why would I select a higher-power part like SMLJ8.0A instead of an equivalent-rated part?

A: Higher-power alternatives provide additional design margin for transient suppression, reducing clamping voltage stress and extending component life in high-stress applications. This selection is justified when application transient energy exceeds nominal specifications or when reliability enhancement is required.