SMLJ10A-TP Equivalent & Substitute Parts

Part Overview

The SMLJ10A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient protection applications. This surface-mount component operates with a 10V reverse standoff voltage and 17V maximum clamping voltage, delivering 176.4A peak pulse current with 3000W peak pulse power dissipation. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	10	V
Voltage - Breakdown (Min)	11.1	V
Voltage - Clamping (Max) @ Ipp	17	V
Current - Peak Pulse (10/1000µs)	176.4	A
Power - Peak Pulse	3000	W
Operating Temperature Range	-55 to 175	°C
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the SMLJ10A-TP are classified based on electrical and mechanical parameter alignment:

Direct Substitutes maintain identical or equivalent electrical specifications:

Voltage - Reverse Standoff: 10V
Voltage - Clamping (Max) @ Ipp: 17V
Current - Peak Pulse (10/1000µs): 176.4A or 176.5A
Power - Peak Pulse: 3000W
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Type: Zener, Unidirectional (1 channel)

Similar Substitutes meet core voltage and package requirements but differ in peak pulse current and power dissipation capacity:

Voltage - Reverse Standoff: 10V
Voltage - Clamping (Max) @ Ipp: 17V
Current - Peak Pulse (10/1000µs): 88.24A (reduced)
Power - Peak Pulse: 1500W (reduced)
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Type: Zener, Unidirectional (1 channel)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	Product Status	RoHS Status
SMLJ10A-TP	Micro Commercial Co	10V	11.1V	17V	176.4A	3000W	-55 to 175°C	DO-214AB, SMC	Active	ROHS3 Compliant
3SMC10A TR13 PBFREE	Central Semiconductor Corp	10V	11.1V	17V	176.4A	3000W	-65 to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMDJ10A	Alpha & Omega Semiconductor Inc.	10V	11.1V	17V	176.5A	3000W	-55 to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMCJ10A	Meritek	10V	11.1V	17V	88.24A	1500W	-55 to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
SMLJ10A	Bourns Inc.	10V	11.1V	17V	176.4A	3000W	-55 to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant
TPSMD10A	Littelfuse Inc.	10V	11.1V	17V	176.5A	3000W	-65 to 150°C	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Equivalent Performance):

SMDJ10A, SMLJ10A, 3SMC10A TR13 PBFREE, and TPSMD10A are direct electrical equivalents to SMLJ10A-TP. All maintain 10V reverse standoff, 17V clamping voltage, and 3000W peak pulse power. Peak pulse current specifications are 176.4A or 176.5A, representing negligible variance. All substitute parts are ROHS3 compliant and active in production. Selection among these parts depends on packaging format (Tape & Reel vs. Cut Tape), inventory availability, and temperature range requirements. TPSMD10A includes AEC-Q101 automotive qualification and extended low-temperature rating (-65°C), suitable for automotive applications. SMLJ10A from Bourns Inc. and SMDJ10A from Alpha & Omega Semiconductor Inc. support standard industrial temperature ranges.

Similar Substitutes (Reduced Power Capacity):

SMCJ10A from Meritek maintains voltage specifications (10V standoff, 17V clamping) but operates at reduced peak pulse current (88.24A) and power dissipation (1500W). This part is suitable for applications with lower transient energy requirements or where component size constraints necessitate reduced power handling. SMCJ10A remains ROHS3 compliant and active in production.

All substitute parts are surface-mount components in DO-214AB (SMC) package format, compatible with existing PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SMCJ10A replace SMLJ10A-TP in all applications?

A: SMCJ10A is electrically compatible for voltage protection (10V standoff, 17V clamping) but has reduced peak pulse current (88.24A vs. 176.4A) and power dissipation (1500W vs. 3000W). Use SMCJ10A only in applications where transient energy levels do not exceed 1500W peak pulse power.

Q: What is the difference between Direct and Similar substitutes?

A: Direct substitutes (SMDJ10A, SMLJ10A, 3SMC10A TR13 PBFREE, TPSMD10A) maintain full electrical equivalence with 176.4A or 176.5A peak pulse current and 3000W power dissipation. Similar substitutes (SMCJ10A) reduce peak pulse current to 88.24A and power to 1500W, suitable only for lower-energy transient protection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions.

Q: Does packaging format affect substitution?

A: All parts use DO-214AB (SMC) surface-mount package. Packaging format differs (Tape & Reel vs. Cut Tape), which affects procurement and assembly handling but not electrical or mechanical compatibility. Verify packaging availability with your supplier.

Q: Is TPSMD10A suitable for automotive applications?

A: TPSMD10A carries AEC-Q101 automotive qualification and extended temperature rating (-65 to 150°C), making it suitable for automotive transient protection circuits. Other substitutes support standard industrial temperature ranges.

Q: What is the operating temperature range consideration for substitution?

A: SMLJ10A-TP operates from -55 to 175°C. Most substitutes operate from -55 to 150°C, reducing the upper temperature limit by 25°C. TPSMD10A and 3SMC10A TR13 PBFREE extend the lower limit to -65°C. Verify application temperature requirements before selection.

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