SMCJ15CA-13 Equivalent & Substitute Parts

Part Overview

The SMCJ15CA-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 15V reverse standoff voltage and provides 24.4V clamping at peak pulse current, delivering 1500W peak pulse power dissipation in a DO-214AB (SMC) package. The SMCJ15CA-13 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	15	V
Voltage - Breakdown (Min)	16.7	V
Voltage - Clamping (Max) @ Ipp	24.4	V
Current - Peak Pulse (10/1000µs)	61.5	A
Power - Peak Pulse	1500	W
Type	Zener	—
Bidirectional Channels	1	—
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature	-55 to 150	°C

Substitute Part Grouping Explanation

Substitute parts for the SMCJ15CA-13 are classified into two categories based on electrical performance and packaging compatibility:

Category 1: Direct Electrical Equivalents (61.5A Peak Pulse Current) These parts maintain identical electrical specifications including 15V reverse standoff, 24.4V clamping voltage, and 61.5A peak pulse current with 1500W power dissipation. They are pin-compatible in DO-214AB (SMC) packages and serve as direct replacements.

Category 2: Enhanced Performance Alternatives (123A–205A Peak Pulse Current) These parts share the same voltage ratings (15V standoff, 24.4V clamping) and package form factor but provide higher peak pulse current handling (123A or 205A) and increased power dissipation (3000W or 5000W). These are suitable for applications requiring greater transient energy absorption while maintaining voltage protection thresholds.

Key Parameters Determining Substitution:

Voltage - Reverse Standoff: 15V (fixed)
Voltage - Clamping (Max) @ Ipp: 24.4V (fixed)
Package / Case: DO-214AB, SMC (fixed)
Mounting Type: Surface Mount (fixed)
Type: Zener, Bidirectional (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Clamping (Max) @ Ipp (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Package	Product Status	RoHS Status
SMCJ15CA-13	Diodes Incorporated	15	24.4	61.5	1500	DO-214AB, SMC	Discontinued	Non-compliant
SMCJ15CA-13-F	Diodes Incorporated	15	24.4	61.5	1500	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ15CA	EVVO Semi	15	24.4	61.5	1500	DO-214AB, SMC	Active	ROHS3 Compliant
5.0SMDJ15CA	MDE Semiconductor Inc	15	24.4	205	5000	DO-214AB, SMC	Active	ROHS3 Compliant
5.0SMDJ15CA-T7	Littelfuse	15	24.4	205	5000	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ15CA	Alpha & Omega Semiconductor Inc.	15	24.4	123	3000	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ15CA-T7	Littelfuse	15	24.4	123	3000	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ15CA	Bourns Inc.	15	24.4	123	3000	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ15CA-TP	Micro Commercial Co	15	24.4	123	3000	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Performance): SMCJ15CA-13-F (Diodes Incorporated) and SMCJ15CA (EVVO Semi) are functionally equivalent to the discontinued SMCJ15CA-13, maintaining 61.5A peak pulse current and 1500W power dissipation. Both are active products with ROHS3 compliance. SMCJ15CA-13-F is the manufacturer's direct successor from Diodes Incorporated and is available in Tape & Reel packaging with 17,300 units in stock. SMCJ15CA from EVVO Semi offers equivalent performance with higher inventory availability (84,400 units).

Enhanced Performance Alternatives: For applications tolerating higher transient energy absorption, SMDJ15CA (Alpha & Omega Semiconductor Inc.), SMDJ15CA-T7 (Littelfuse), SMLJ15CA (Bourns Inc.), and SMLJ15CA-TP (Micro Commercial Co) provide 123A peak pulse current and 3000W power dissipation. The 5.0SMDJ15CA series (MDE Semiconductor Inc. and Littelfuse 5.0SMDJ15CA-T7) delivers maximum performance at 205A peak pulse current and 5000W power dissipation. All alternatives maintain identical voltage protection characteristics (15V standoff, 24.4V clamping) and DO-214AB package compatibility.

All substitute parts are ROHS3 compliant and active products, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SMCJ15CA-13-F be used as a direct replacement for SMCJ15CA-13? A: Yes. SMCJ15CA-13-F maintains identical electrical specifications (15V standoff, 24.4V clamping, 61.5A peak pulse, 1500W power dissipation) and package form factor (DO-214AB, SMC). The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between 61.5A and 123A peak pulse current variants? A: Peak pulse current rating indicates the maximum transient current the device can safely suppress. The 61.5A variants (SMCJ15CA-13, SMCJ15CA-13-F, SMCJ15CA) dissipate 1500W, while 123A variants (SMDJ15CA, SMLJ15CA) dissipate 3000W. Both maintain identical voltage protection thresholds. Selection depends on the magnitude of transient energy in the application.

Q: Are all substitute parts pin-compatible with the original SMCJ15CA-13? A: Yes. All listed substitutes use the DO-214AB (SMC) package with identical pinout and footprint, enabling direct PCB replacement without layout modifications.

Q: What does ROHS3 compliance mean for this component? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. The original SMCJ15CA-13 is non-compliant; all active substitutes are ROHS3 compliant, meeting modern regulatory standards.

Q: Can I use a 205A variant (5.0SMDJ15CA) in place of a 61.5A variant? A: Yes, from an electrical protection standpoint. The 205A variant provides superior transient energy absorption (5000W vs. 1500W) while maintaining identical voltage protection (15V standoff, 24.4V clamping). This substitution is suitable for applications where higher transient stress is anticipated or where design margin is desired.

Q: What packaging options are available for these substitutes? A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® configurations. Tape & Reel is standard for high-volume production; Cut Tape is suitable for lower-volume or prototype applications. All maintain the same DO-214AB (SMC) component package.

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