SMCJ58A Transient Voltage Suppressor Diode - Equivalent & Substitute Parts

Part Overview

The SMCJ58A is an active-status Transient Voltage Suppressor (TVS) diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose transient voltage protection applications. This unidirectional zener-type TVS diode operates with a 58V reverse standoff voltage and provides 93.6V maximum clamping voltage at peak pulse current. The component is housed in a DO-214AB (SMC) surface-mount package and is ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for components with enhanced electrical performance characteristics within the same voltage and clamping parameters.

Substiute Parts

SMCJ58A

Taiwan Semiconductor CorporationIn Stock: 105247SMCJ58A Datasheet

Current PartRFQ

SMCJ58A-13-F

Diodes IncorporatedIn Stock: 15350SMCJ58A-13-F Datasheet

DirectRFQ

SMCJ58A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2011SMCJ58A-E3/57T Datasheet

DirectRFQ

SMCJ58A-TP

Micro Commercial CoIn Stock: 7118SMCJ58A-TP Datasheet

DirectRFQ

5.0SMDJ58A-T7

Littelfuse Inc.In Stock: 19365.0SMDJ58A-T7 Datasheet

SimilarRFQ

SMCJ54A

MeritekIn Stock: 3448SMCJ54A Datasheet

SimilarRFQ

SMCJ58A

MDDIn Stock: 105205SMCJ58A Datasheet

SimilarRFQ

SMDJ58A-T7

Littelfuse Inc.In Stock: 2014SMDJ58A-T7 Datasheet

SimilarRFQ

SMLJ58A

Bourns Inc.In Stock: 109955SMLJ58A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCJ58A are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents maintain identical electrical specifications across all critical parameters: 58V reverse standoff voltage, 64.4V minimum breakdown voltage, 93.6V maximum clamping voltage, and 1500W peak pulse power rating. These parts differ only in manufacturer, packaging format (Cut Tape versus Tape & Reel), or minor operational temperature ranges. Direct equivalents include SMCJ58A-13-F, SMCJ58A-E3/57T, SMCJ58A-TP, and SMCJ58A (MDD variant).

Similar Alternatives maintain the same voltage specifications (58V standoff, 93.6V clamping) but feature enhanced peak pulse current ratings and power dissipation capabilities. These components are suitable for applications requiring higher transient energy absorption while operating within the same voltage protection window. Similar alternatives include 5.0SMDJ58A-T7 (53.5A, 5kW), SMDJ58A-T7 (32.1A, 3kW), and SMLJ58A (32A, 3kW).

Voltage-Variant Alternatives such as SMCJ54A operate at reduced voltage specifications (54V standoff, 87.1V clamping) and are applicable only when circuit protection requirements permit lower voltage thresholds.

Substitution eligibility is determined by: (1) matching voltage specifications, (2) equal or greater peak pulse current rating, (3) equal or greater power dissipation capability, (4) compatible surface-mount package format, and (5) ROHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: SMCJ58A-13-F (Diodes Incorporated), SMCJ58A-E3/57T (Vishay General Semiconductor), SMCJ58A-TP (Micro Commercial Co), and SMCJ58A (MDD) are electrically and mechanically equivalent to the primary SMCJ58A component. All maintain identical voltage specifications and 1500W power rating. Selection among these direct equivalents is determined by packaging format availability (Cut Tape versus Tape & Reel) and inventory status. All direct equivalents carry ROHS3 compliance and unlimited moisture sensitivity rating.

Enhanced Performance Alternatives: SMLJ58A (Bourns Inc.), SMDJ58A-T7 (Littelfuse Inc.), and 5.0SMDJ58A-T7 (Littelfuse Inc.) provide identical voltage protection characteristics while offering increased peak pulse current handling (32A to 53.5A) and proportionally increased power dissipation (3000W to 5000W). These components are suitable for applications where the original 16A specification provides insufficient transient energy absorption margin. All enhanced alternatives maintain ROHS3 compliance and DO-214AB package compatibility.

Voltage-Variant Alternative: SMCJ54A (Meritek) operates at 54V standoff and 87.1V clamping voltage, representing a 4V reduction in both parameters. This component is applicable only when circuit design specifications explicitly permit lower voltage protection thresholds and do not require the 58V standoff characteristic of the primary part.

All substitute parts listed maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and surface-mount DO-214AB package format compatibility with the original SMCJ58A component.

Frequently Asked Questions (FAQ)

Q: Can SMCJ58A-13-F be used as a direct replacement for SMCJ58A?

A: Yes. SMCJ58A-13-F (Diodes Incorporated) is a direct equivalent with identical electrical specifications: 58V standoff voltage, 93.6V clamping voltage, 16A peak pulse current, and 1500W power rating. The primary difference is packaging format (Tape & Reel versus Cut Tape). Both components are ROHS3 compliant and housed in DO-214AB SMC packages.

Q: What is the difference between SMCJ58A and SMLJ58A?

A: Both components maintain identical voltage specifications (58V standoff, 93.6V clamping). SMLJ58A (Bourns Inc.) provides enhanced peak pulse current (32A versus 16A) and power dissipation (3000W versus 1500W). SMLJ58A is suitable for applications requiring higher transient energy absorption within the same voltage protection window.

Q: Can SMCJ54A replace SMCJ58A in all applications?

A: No. SMCJ54A operates at reduced voltage specifications (54V standoff, 87.1V clamping versus 58V standoff, 93.6V clamping). Substitution is valid only when circuit protection requirements explicitly permit lower voltage thresholds. Circuits designed for 58V protection will not achieve equivalent protection with SMCJ54A.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance status. SMDJ58A-T7 and SMLJ58A are marked as REACH Affected, while other substitutes are REACH Unaffected. Both compliance statuses are acceptable for general-purpose applications.

Q: What is the significance of packaging format differences (Cut Tape versus Tape & Reel)?

A: Packaging format affects component handling and assembly processes. Cut Tape (CT) format is suitable for manual or small-batch assembly. Tape & Reel (TR) format is optimized for automated pick-and-place assembly equipment. Electrical performance is identical between formats. Selection depends on manufacturing process requirements.

Q: Can 5.0SMDJ58A-T7 be used in place of SMCJ58A?

A: Yes, with design consideration. 5.0SMDJ58A-T7 (Littelfuse Inc.) maintains identical voltage specifications but provides significantly enhanced peak pulse current (53.5A versus 16A) and power dissipation (5000W versus 1500W). This component is suitable for applications where higher transient energy absorption is required or beneficial. No circuit redesign is necessary; the enhanced performance is backward compatible.

Q: What operating temperature ranges are specified for substitute parts?

A: Operating temperature ranges vary among manufacturers. SMCJ58A-13-F, SMCJ58A-E3/57T, SMLJ58A, and SMCJ54A specify -55°C to 150°C. SMCJ58A-TP extends to -55°C to 175°C. SMDJ58A-T7 and 5.0SMDJ58A-T7 specify -65°C to 150°C. Selection should account for specific application temperature requirements.

Q: Are all substitute parts available in DO-214AB package format?

A: Yes. All substitute parts listed are housed in DO-214AB (SMC) surface-mount packages, ensuring mechanical and footprint compatibility with the original SMCJ58A component.