SMCJ58C Equivalent & Substitute Parts

Part Overview

The SMCJ58C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. Specified with a 58V reverse standoff voltage, 98.28V clamping voltage, and 16.1A peak pulse current in a DO-214AB (SMC) package, this component is classified as obsolete. Due to its discontinued status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure supply chain availability for new production and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMCJ58C
Manufacturer	Littelfuse Inc.
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Bidirectional Channels	1
Voltage - Reverse Standoff (Typ)	58V
Voltage - Breakdown (Min)	61.02V
Voltage - Clamping (Max) @ Ipp	98.28V
Current - Peak Pulse (10/1000µs)	16.1A
Power - Peak Pulse	1500W
Operating Temperature Range	-55°C to 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SMCJ58C is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff: 58V (required match)
Voltage - Clamping (Max) @ Ipp: 93.6V to 103V (acceptable range for general-purpose protection)
Current - Peak Pulse: 16A to 32A (equal or greater capacity)
Power - Peak Pulse: 1500W to 3000W (equal or greater capacity)
Mounting Type: Surface Mount
Package / Case: DO-214AB or SMC equivalent
Bidirectional Channels: 1
Type: Zener

Substitute Categories:

Category A - Direct Electrical Equivalents (93.6V Clamp, 16A-16.1A Ipp): These parts maintain the original clamping voltage specification with matching or equivalent peak pulse current ratings. Suitable for direct replacement in applications where the original performance envelope is required.

Category B - Higher Current Capacity (93.6V Clamp, 32A Ipp): These parts provide the same clamping voltage with doubled peak pulse current capacity and doubled power dissipation (3000W vs 1500W). Suitable for applications requiring enhanced transient energy absorption.

Category C - Higher Clamping Voltage (103V Clamp, 14.6A Ipp): This part maintains the same reverse standoff voltage but provides higher clamping voltage with slightly reduced peak pulse current. Suitable for applications with less stringent clamping requirements.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and surface-mount DO-214AB/SMC packaging compatibility with the original SMCJ58C.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case
SMCJ58C	Littelfuse Inc.	Obsolete	58V	98.28V	16.1A	1500W	-55°C to 150°C	DO-214AB, SMC
SMCJ58CA	EVVO Semi	Active	58V	93.6V	16.1A	1500W	-55°C to 150°C	DO-214AB, SMC
SMCJ58CA-13-F	Diodes Incorporated	Active	58V	93.6V	16A	1500W	-55°C to 150°C	DO-214AB, SMC
SMCJ58CA-E3/9AT	Vishay General Semiconductor - Diodes Division	Active	58V	93.6V	16A	1500W	-55°C to 150°C	DO-214AB, SMC
SMCJ58CA-TP	Micro Commercial Co	Active	58V	93.6V	16.1A	1500W	-55°C to 175°C	DO-214AB, SMC
SMCJ58CAE3/TR13	Microchip Technology	Active	58V	93.6V	16A	1500W	-65°C to 150°C	DO-214AB, SMC
SMCJ58CE3/TR13	Microchip Technology	Active	58V	103V	14.6A	1500W	-65°C to 150°C	DO-214AB, SMC
SMLJ58CA	Bourns Inc.	Active	58V	93.6V	32A	3000W	-55°C to 150°C	DO-214AB, SMC
SMLJ58CA-TP	Micro Commercial Co	Active	58V	93.6V	32A	3000W	-55°C to 175°C	DO-214AB, SMC

Engineering Selection Recommendations

Primary Selection Criteria:

All substitute parts listed are active products with RoHS3 compliance and MSL Level 1 rating, ensuring regulatory compliance and manufacturing availability. Selection among substitutes is determined by application-specific requirements within the allowed parameter ranges.

For Direct Replacement (Matching Original Performance Envelope): SMCJ58CA (EVVO Semi), SMCJ58CA-13-F (Diodes Incorporated), SMCJ58CA-E3/9AT (Vishay), and SMCJ58CAE3/TR13 (Microchip Technology) provide equivalent electrical performance with 93.6V clamping voltage and 16A-16.1A peak pulse current. These are suitable where the original 1500W power dissipation specification is sufficient.

For Extended Temperature Range: SMCJ58CA-TP (Micro Commercial Co) and SMLJ58CA-TP (Micro Commercial Co) extend the upper operating temperature to 175°C, compared to the standard 150°C. SMCJ58CAE3/TR13 and SMCJ58CE3/TR13 (Microchip Technology) extend the lower operating temperature to -65°C.

For Enhanced Transient Energy Absorption: SMLJ58CA (Bourns Inc.) and SMLJ58CA-TP (Micro Commercial Co) provide doubled peak pulse current (32A) and doubled power dissipation (3000W), suitable for applications requiring greater transient energy handling within the same 58V reverse standoff and 93.6V clamping voltage specifications.

For Higher Clamping Voltage Tolerance: SMCJ58CE3/TR13 (Microchip Technology) provides 103V clamping voltage with 14.6A peak pulse current, suitable for applications where higher clamping voltage is acceptable and peak pulse current requirements are lower.

Frequently Asked Questions (FAQ)

Q: Can SMCJ58CA directly replace SMCJ58C? A: Yes. SMCJ58CA maintains the same 58V reverse standoff voltage, equivalent 93.6V clamping voltage, matching 16.1A peak pulse current, and identical 1500W power dissipation in the same DO-214AB/SMC package. The primary difference is the lower clamping voltage (93.6V vs 98.28V), which is within acceptable substitution parameters for general-purpose TVS applications.

Q: What is the difference between SMCJ58CA and SMLJ58CA? A: Both maintain 58V reverse standoff and 93.6V clamping voltage. The primary difference is peak pulse current and power dissipation: SMCJ58CA provides 16.1A and 1500W, while SMLJ58CA provides 32A and 3000W. SMLJ58CA is suitable for applications requiring enhanced transient energy absorption.

Q: Are all substitute parts compatible with the original DO-214AB footprint? A: Yes. All substitute parts use DO-214AB or SMC package designations, which are mechanically and electrically compatible with the original SMCJ58C footprint.

Q: Does the lower clamping voltage of substitute parts affect circuit protection? A: The substitute parts with 93.6V clamping voltage provide effective overvoltage protection within the 58V reverse standoff specification. The clamping voltage difference (93.6V vs 98.28V) represents a 4.6% reduction and is within acceptable tolerance for general-purpose transient suppression applications.

Q: Which substitute offers the widest operating temperature range? A: SMCJ58CA-TP and SMLJ58CA-TP extend the upper operating temperature to 175°C (vs 150°C standard). SMCJ58CAE3/TR13 and SMCJ58CE3/TR13 extend the lower operating temperature to -65°C (vs -55°C standard).

Q: Are all substitutes RoHS3 compliant? A: Yes. All substitute parts listed maintain RoHS3 compliance and MSL Level 1 rating, ensuring regulatory compliance for new production and field replacement applications.

Q: What packaging options are available for the substitutes? A: Substitute parts are available in Cut Tape (CT), Digi-Reel, Tape & Reel (TR), and Bulk packaging options depending on the manufacturer and part number variant. Verify specific packaging availability with the supplier for your procurement requirements.

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