SMBJ10E3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ10E3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 10V reverse standoff voltage, 18.8V maximum clamping voltage, and 31.9A peak pulse current capability in a DO-214AA (SMB) package. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical performance parameters within the 10V standoff voltage class, compatible package formats, and active product status. Substitutes maintain functional equivalence for general-purpose transient voltage suppression applications while accommodating minor variations in clamping voltage and peak pulse current specifications.

Key Parameters

Parameter	SMBJ10E3/TR13	Unit
Voltage - Reverse Standoff (Typ)	10	V
Voltage - Breakdown (Min)	11.1	V
Voltage - Clamping (Max) @ Ipp	18.8	V
Current - Peak Pulse (10/1000µs)	31.9	A
Power - Peak Pulse	600	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SMBJ10E3/TR13 are qualified based on the following electrical and mechanical criteria:

Primary Matching Criteria:

Voltage - Reverse Standoff: 10V (nominal)
Voltage - Breakdown (Min): 11.0V to 11.1V range
Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount
Unidirectional Channels: 1
Type: Zener diode
Applications: General Purpose

Secondary Performance Parameters:

Voltage - Clamping (Max) @ Ipp: 16.3V to 18.8V acceptable range
Current - Peak Pulse (10/1000µs): 29A to 37A acceptable range
Power - Peak Pulse: 500W to 600W acceptable range
Operating Temperature Range: -55°C to -65°C minimum; 150°C maximum
RoHS3 Compliance: Required
Moisture Sensitivity Level: 1 (Unlimited) preferred

All substitute parts maintain the same functional voltage class, package footprint compatibility, and general-purpose transient suppression capability. Variations in clamping voltage and peak pulse current remain within acceptable engineering tolerances for equivalent circuit protection performance.

Parameter Comparison

Parameter	SMBJ10E3/TR13 (Microchip)	SACB10 (Littelfuse)	SMBJ10A (MDD)	SMBJ10A-13-F (Diodes Inc.)	SMBJ10A-TR (STMicroelectronics)	Unit
Manufacturer	Microchip Technology	Littelfuse Inc.	MDD	Diodes Incorporated	STMicroelectronics	—
Voltage - Reverse Standoff (Typ)	10	10	10	10	10	V
Voltage - Breakdown (Min)	11.1	11.1	11	11.1	11.1	V
Voltage - Clamping (Max) @ Ipp	18.8	16.3	17	17	17	V
Current - Peak Pulse (10/1000µs)	31.9	29	35.3	35.3	37	A
Power - Peak Pulse	600	500	600	600	600	W
Operating Temperature (Min)	-65	-55	-50	-55	-55	°C (TJ)
Operating Temperature (Max)	150	150	150	150	150	°C (TJ)
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
Type	Zener	Zener	Zener	Zener	Zener	—
Unidirectional Channels	1	1	1	1	1	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full RoHS3 compliance, ensuring regulatory conformance and long-term supply availability. Selection among equivalent options is determined by specific application requirements and performance parameter tolerances.

SACB10 (Littelfuse Inc.): Suitable for applications where lower clamping voltage (16.3V) and reduced peak pulse current (29A) are acceptable. Provides the most conservative clamping performance within the 10V standoff class. Operating temperature minimum of -55°C is adequate for most industrial applications.

SMBJ10A (MDD): Offers balanced performance with 17V clamping voltage and 35.3A peak pulse current. Highest inventory availability (113,100 pieces) supports volume production requirements. Operating temperature minimum of -50°C is suitable for standard commercial and industrial environments.

SMBJ10A-13-F (Diodes Incorporated): Provides 17V clamping voltage and 35.3A peak pulse current with extended low-temperature operation to -55°C. Moderate inventory levels (7,330 pieces) support standard procurement cycles.

SMBJ10A-TR (STMicroelectronics): Delivers highest peak pulse current (37A) and 17V clamping voltage with extended low-temperature operation to -55°C. Adequate inventory (12,600 pieces) supports production requirements. TRANSIL™ series designation indicates manufacturer-specific performance optimization.

All substitute parts are electrically and mechanically compatible with the SMBJ10E3/TR13 for general-purpose transient voltage suppression applications. Selection should be based on specific circuit requirements for clamping voltage precision, peak pulse current capacity, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can SACB10 replace SMBJ10E3/TR13 in all applications?

A: SACB10 is electrically compatible as a substitute within the 10V standoff voltage class. The lower clamping voltage (16.3V versus 18.8V) and reduced peak pulse current (29A versus 31.9A) make it suitable for applications with less stringent transient suppression requirements. Circuit analysis is necessary to confirm adequacy for specific overvoltage protection specifications.

Q: What is the difference between SMBJ10A from MDD and SMBJ10A-TR from STMicroelectronics?

A: Both parts share identical electrical specifications (10V standoff, 17V clamping, 35.3A peak pulse current) and DO-214AA package format. The primary differences are manufacturer identity, operating temperature minimum (-50°C for MDD versus -55°C for STMicroelectronics), and packaging format (Tape & Reel for MDD versus Cut Tape & Digi-Reel for STMicroelectronics). Selection depends on temperature range requirements and preferred packaging format for assembly operations.

Q: Are all substitute parts pin-compatible with SMBJ10E3/TR13?

A: Yes. All substitute parts use the DO-214AA (SMB) package with identical pin configuration and footprint. Direct board-level substitution is possible without PCB redesign.

Q: Which substitute part has the best low-temperature performance?

A: SMBJ10A-13-F (Diodes Incorporated) and SMBJ10A-TR (STMicroelectronics) both operate to -55°C, compared to -65°C for the original SMBJ10E3/TR13 and -50°C for SMBJ10A (MDD). SACB10 operates to -55°C. Selection depends on minimum operating temperature requirements for the application.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All identified substitute parts are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the regulatory and environmental specifications of the SMBJ10E3/TR13.

Q: What is the significance of the different peak pulse current ratings?

A: Peak pulse current (10/1000µs) indicates the maximum transient current the diode can suppress during a standard 10µs pulse width event. Higher ratings (37A for SMBJ10A-TR) provide greater margin for high-energy transient events. Lower ratings (29A for SACB10) are adequate for applications with lower transient energy levels. Circuit design determines the required peak pulse current capacity.

Q: Can SMBJ10A-TR be used in high-volume production?

A: Yes. SMBJ10A-TR maintains adequate inventory (12,600 pieces) for standard production volumes. STMicroelectronics is an established manufacturer with consistent supply chain performance. Procurement planning should account for lead times and minimum order quantities specific to the distributor and supply agreement.

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