SMCJ7.5CA-13 Equivalent & Substitute Parts

Part Overview

The SMCJ7.5CA-13 is a transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 7.5V reverse standoff voltage and 12.9V maximum clamping voltage, capable of handling 116.3A peak pulse current at 1500W peak pulse power dissipation. The SMCJ7.5CA-13 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

SMCJ7.5CA-13

Diodes IncorporatedIn Stock: 868SMCJ7.5CA-13 Datasheet

Current PartRFQ

SMCJ7.5CA-13-F

Diodes IncorporatedIn Stock: 6330SMCJ7.5CA-13-F Datasheet

DirectRFQ

SMCJ7.5CA-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1289SMCJ7.5CA-E3/57T Datasheet

DirectRFQ

SMCJ7.5CA-TP

Micro Commercial CoIn Stock: 4132SMCJ7.5CA-TP Datasheet

DirectRFQ

SMCJ7.5CA

Taiwan Semiconductor CorporationIn Stock: 15184SMCJ7.5CA Datasheet

MFR RecommendedRFQ

SMCJ7.5CA

Taiwan Semiconductor CorporationIn Stock: 15184SMCJ7.5CA Datasheet

MFR RecommendedRFQ

SMDJ7.5CA

Alpha & Omega Semiconductor Inc.In Stock: 22863SMDJ7.5CA Datasheet

MFR RecommendedRFQ

SMLJ7.5CA

Bourns Inc.In Stock: 3626SMLJ7.5CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMCJ7.5CA-13 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 7.5V
• Voltage - Clamping (Max) @ Ipp: 12.9V
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener, Bidirectional (1 channel)
• Operating Temperature Range: minimum -55°C to 150°C

Substitute parts are grouped into two categories based on current-handling capability:

Category A (Direct Electrical Equivalents): Parts with 116.3A peak pulse current matching the original specification.

Category B (Higher Current Rating): Parts with 232.6A peak pulse current, offering enhanced transient protection capability while maintaining identical voltage parameters and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SMCJ7.5CA-13-F (Diodes Incorporated)

This part is the direct functional equivalent of the discontinued SMCJ7.5CA-13, manufactured by the same supplier. It maintains identical electrical specifications and package configuration while achieving ROHS3 compliance. Tape & Reel packaging supports automated assembly processes. Current inventory of 6300 units ensures supply continuity.

Secondary Recommendations (Direct Electrical Equivalents):

SMCJ7.5CA-E3/57T (Vishay General Semiconductor) and SMCJ7.5CA-TP (Micro Commercial Co) provide equivalent performance with active product status and ROHS3 compliance. SMCJ7.5CA-TP extends the operating temperature range to 175°C, offering thermal margin for high-temperature applications. SMCJ7.5CA (Taiwan Semiconductor Corporation) delivers marginally higher peak pulse current (122A versus 116.3A) within the same power envelope and maintains full compatibility.

Alternative Recommendation (Enhanced Protection): SMDJ7.5CA (Alpha & Omega Semiconductor Inc.) and SMLJ7.5CA (Bourns Inc.)

These parts double the peak pulse current capability (232.6A) and peak pulse power (3000W) while maintaining identical voltage parameters and package compatibility. Selection of these higher-rated alternatives is appropriate for applications requiring enhanced transient suppression margin or where design margins are critical.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for modern manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can SMCJ7.5CA-13 be directly replaced with SMCJ7.5CA-13-F?

A: Yes. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications: 7.5V reverse standoff, 12.9V clamping voltage, 116.3A peak pulse current, and DO-214AB SMC package. The primary difference is packaging format (Tape & Reel for -13-F) and ROHS3 compliance status. Direct substitution is electrically and mechanically valid.

Q: What is the difference between SMCJ7.5CA and SMDJ7.5CA?

A: Both maintain identical voltage ratings (7.5V standoff, 12.9V clamping) and package configuration (DO-214AB SMC). The SMDJ7.5CA is rated for 232.6A peak pulse current and 3000W peak pulse power, compared to SMCJ7.5CA at 116.3A and 1500W. The SMDJ7.5CA provides double the transient current handling capability and is suitable for higher-energy transient environments.

Q: Are all substitute parts compatible with the original PCB layout?

A: Yes. All substitute parts use the DO-214AB SMC package with identical pin spacing and footprint. No PCB layout modifications are required for mechanical or electrical compatibility.

Q: Which substitute offers the widest operating temperature range?

A: SMCJ7.5CA-TP (Micro Commercial Co) extends the operating temperature range to -55°C to 175°C, compared to -55°C to 150°C for the original SMCJ7.5CA-13 and most alternatives. This extended range supports applications in elevated-temperature environments.

Q: Do all substitutes meet current RoHS compliance requirements?

A: All active substitute parts listed achieve ROHS3 compliance. The original SMCJ7.5CA-13 is RoHS non-compliant. Substitution with any recommended alternative satisfies modern RoHS regulatory requirements.

Q: Can SMLJ7.5CA be used in place of SMCJ7.5CA-13 in existing designs?

A: Yes, with design margin consideration. SMLJ7.5CA maintains identical voltage specifications and package compatibility. The doubled peak pulse current (232.6A) and power rating (3000W) provide enhanced transient protection without introducing electrical incompatibility. No circuit modifications are required.