SMCJ10-E3/9AT Transient Voltage Suppressor (TVS) Diode — Equivalent & Substitute Parts

Part Overview

The SMCJ10-E3/9AT is a unidirectional Zener-type transient voltage suppressor diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-214AB (SMC) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 10V reverse standoff voltage and 18.8V maximum clamping voltage at peak pulse current.

The SMCJ10-E3/9AT is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with active product status, offering identical or compatible electrical and mechanical specifications suitable for direct replacement in new designs or production continuity.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	10V
Voltage - Breakdown (Min)	11.1V
Voltage - Clamping (Max) @ Ipp	18.8V
Current - Peak Pulse (10/1000µs)	79.8A
Power - Peak Pulse	1500W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Type	Zener
Unidirectional Channels	1
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SMCJ10-E3/9AT is determined by the following critical parameters:

Reverse Standoff Voltage: 10V (all substitutes must match)
Breakdown Voltage (Min): 11.1V (all substitutes must match)
Package / Case: DO-214AB, SMC (all substitutes must match)
Mounting Type: Surface Mount (all substitutes must match)
Type: Zener, Unidirectional (all substitutes must match)
Clamping Voltage & Peak Pulse Current: Substitutes fall into two electrical groups based on these parameters

Group 1 — Exact Electrical Match (18.8V Clamping, 79.8A Ipp)

SMCJ10E3/TR13 (Microchip Technology)

Group 2 — Compatible Electrical Variant (17V Clamping, 88.2–88.3A Ipp)

SMCJ10A-E3/9AT (Vishay General Semiconductor - Diodes Division)
SMCJ10A (Meritek)
SMCJ10A-13-F (Diodes Incorporated)
SMCJ10A-HR (Littelfuse Inc.)
SMCJ10A-HRA (Littelfuse Inc.)
SMCJ10A-HRAT7 (Littelfuse Inc.)
SMCJ10A-TP (Micro Commercial Co)

All substitute parts maintain identical reverse standoff voltage, breakdown voltage, package, and mounting specifications. Group 2 substitutes feature slightly lower clamping voltage (17V vs. 18.8V) and higher peak pulse current capability (88.2–88.3A vs. 79.8A), both within the same power dissipation envelope (1500W).

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package	Product Status
SMCJ10-E3/9AT	Vishay General Semiconductor - Diodes Division	10V	11.1V	18.8V	79.8A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Obsolete
SMCJ10E3/TR13	Microchip Technology	10V	11.1V	18.8V	79.8A	1500W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-E3/9AT	Vishay General Semiconductor - Diodes Division	10V	11.1V	17V	88.2A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A	Meritek	10V	11.1V	17V	88.24A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-13-F	Diodes Incorporated	10V	11.1V	17V	88.2A	1500W	-55°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-HR	Littelfuse Inc.	10V	11.1V	17V	88.3A	1500W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-HRA	Littelfuse Inc.	10V	11.1V	17V	88.3A	1500W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-HRAT7	Littelfuse Inc.	10V	11.1V	17V	88.3A	1500W	-65°C ~ 150°C	DO-214AB, SMC	Active
SMCJ10A-TP	Micro Commercial Co	10V	11.1V	17V	88.3A	1500W	-55°C ~ 175°C	DO-214AB, SMC	Active

Engineering Selection Recommendations

For Direct Replacement (Exact Electrical Match)

SMCJ10E3/TR13 from Microchip Technology provides identical clamping voltage (18.8V) and peak pulse current (79.8A) specifications. This part is active and ROHS3 compliant with extended operating temperature range (-65°C ~ 150°C). Selection of this part eliminates any electrical parameter variance from the original SMCJ10-E3/9AT.

For Compatible Substitution (Group 2 — SMCJ10A Variants)

All Group 2 substitutes maintain the critical 10V reverse standoff and 11.1V minimum breakdown voltage specifications. The reduction in clamping voltage from 18.8V to 17V and corresponding increase in peak pulse current from 79.8A to 88.2–88.3A occur within the same 1500W power dissipation envelope. These parts are active with ROHS3 compliance and MSL 1 rating.

Selection among Group 2 variants depends on packaging and temperature requirements:

Standard Temperature Range (-55°C ~ 150°C): SMCJ10A-E3/9AT (Vishay), SMCJ10A (Meritek), SMCJ10A-13-F (Diodes Incorporated)
Extended Temperature Range (-65°C ~ 150°C): SMCJ10A-HR, SMCJ10A-HRA, SMCJ10A-HRAT7 (Littelfuse Inc.)
Extended Upper Temperature Limit (-55°C ~ 175°C): SMCJ10A-TP (Micro Commercial Co)

All substitute parts carry ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited moisture sensitivity).

Frequently Asked Questions (FAQ)

Q: Can SMCJ10A variants be used as direct replacements for SMCJ10-E3/9AT?

A: Yes. SMCJ10A variants are compatible substitutes. They maintain identical reverse standoff voltage (10V), breakdown voltage (11.1V), package (DO-214AB, SMC), and mounting type (surface mount). The clamping voltage is 17V versus 18.8V, and peak pulse current is 88.2–88.3A versus 79.8A. Both operate within the same 1500W power dissipation specification.

Q: What is the difference between SMCJ10E3/TR13 and SMCJ10A variants?

A: SMCJ10E3/TR13 matches the original part's clamping voltage (18.8V) and peak pulse current (79.8A) exactly. SMCJ10A variants feature 17V clamping voltage and 88.2–88.3A peak pulse current. Selection depends on whether exact electrical matching or extended temperature range is prioritized.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity level and REACH unaffected status.

Q: Does the DO-214AB package differ between manufacturers?

A: No. All parts use the identical DO-214AB (SMC) surface mount package. PCB footprints and reflow profiles are interchangeable across all listed substitutes.

Q: Which substitute offers the widest operating temperature range?

A: SMCJ10A-TP from Micro Commercial Co operates from -55°C to 175°C, providing the highest upper temperature limit. Littelfuse variants (SMCJ10A-HR, SMCJ10A-HRA, SMCJ10A-HRAT7) extend the lower limit to -65°C while maintaining 150°C upper limit.

Q: Is the SMCJ10-E3/9AT still available for purchase?

A: The SMCJ10-E3/9AT is classified as obsolete. Active substitutes with equivalent or superior specifications are available from multiple manufacturers with higher inventory levels.

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