SMCJ90AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMCJ90AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the 90V reverse standoff voltage class with a 146V maximum clamping voltage and 10.3A peak pulse current capability. The device is actively produced and RoHS3 compliant, with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching or exceeding the electrical performance parameters while maintaining compatibility with the DO-214AB (SMC) surface-mount package. Substitutes are necessary when the primary part is unavailable, when alternative packaging formats are required, or when enhanced performance characteristics are beneficial for specific circuit requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	90	V
Voltage - Breakdown (Min)	100	V
Voltage - Clamping (Max) @ Ipp	146	V
Current - Peak Pulse (10/1000µs)	10.3	A
Power - Peak Pulse	1500	W
Operating Temperature Range	-65 to 150	°C
Mounting Type	Surface Mount
Package / Case	DO-214AB, SMC
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter alignment:

Direct Equivalents maintain identical electrical specifications across all critical parameters: 90V reverse standoff voltage, 100V minimum breakdown voltage, 146V maximum clamping voltage, 10.3A peak pulse current, and 1500W peak pulse power. These parts are interchangeable at the circuit level and differ only in manufacturer, packaging format (Tape & Reel versus Bulk), or minor temperature range variations within acceptable operating limits.

Similar/Enhanced Substitutes share the same voltage class (90V standoff, 100V breakdown, 146V clamping) and package form factor but provide increased current handling capability (20.6A to 34.3A) and proportionally higher power dissipation (3000W to 5000W). These parts are suitable for applications requiring greater transient energy absorption while maintaining the same voltage protection threshold.

The substitution logic is based strictly on the following parameters:

Voltage - Reverse Standoff (Typ): 90V
Voltage - Breakdown (Min): 100V
Voltage - Clamping (Max) @ Ipp: 146V
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC
Type: Zener, Unidirectional

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (V)	Voltage - Breakdown (V)	Voltage - Clamping (V)	Current - Peak Pulse (A)	Power - Peak Pulse (W)	Operating Temperature (°C)	Packaging	Product Status
SMCJ90AE3/TR13	Microchip Technology	90	100	146	10.3	1500	-65 to 150	Tape & Reel	Active
SMCJ90A	Fairchild Semiconductor	90	100	146	10.3	1500	-55 to 150	Bulk	Active
SMCJ90A-13-F	Diodes Incorporated	90	100	146	10.3	1500	-55 to 150	Tape & Reel	Active
SMCJ90A-E3/57T	Vishay General Semiconductor - Diodes Division	90	100	146	10.3	1500	-55 to 150	Tape & Reel	Active
5.0SMDJ90A	Taiwan Semiconductor Corporation	90	100	146	34.3	5000	-55 to 175	Tape & Reel	Active
5.0SMDJ90A-T7	Littelfuse Inc.	90	100	146	34.3	5000	-65 to 150	Tape & Reel	Active
SMDJ90A	Alpha & Omega Semiconductor Inc.	90	100	146	20.6	3000	-55 to 150	Tape & Reel	Active
SMLJ90A	Bourns Inc.	90	100	146	20.6	3000	-55 to 150	Tape & Reel	Active

Engineering Selection Recommendations

Direct Equivalent Selection:

SMCJ90A (Fairchild Semiconductor), SMCJ90A-13-F (Diodes Incorporated), and SMCJ90A-E3/57T (Vishay General Semiconductor) are direct electrical equivalents to the SMCJ90AE3/TR13. All three parts maintain identical voltage specifications (90V standoff, 100V breakdown, 146V clamping) and current ratings (10.3A peak pulse). All substitute parts are RoHS3 compliant and carry REACH Unaffected or REACH Affected status consistent with the primary part. Selection among these direct equivalents depends on packaging preference (Tape & Reel versus Bulk) and operating temperature requirements. The Microchip primary part and Littelfuse 5.0SMDJ90A-T7 support the extended lower temperature range (-65°C), while Fairchild, Diodes Incorporated, and Vishay parts operate from -55°C minimum.

Enhanced Performance Selection:

SMDJ90A (Alpha & Omega Semiconductor Inc.) and SMLJ90A (Bourns Inc.) provide doubled peak pulse current (20.6A) and power dissipation (3000W) while maintaining identical voltage protection characteristics. These parts are suitable for circuits requiring greater transient energy absorption capacity.

5.0SMDJ90A (Taiwan Semiconductor Corporation) and 5.0SMDJ90A-T7 (Littelfuse Inc.) provide the highest performance tier with 34.3A peak pulse current and 5000W power dissipation. The Littelfuse variant supports the extended lower temperature range (-65°C) matching the primary part specification.

All substitute parts are actively produced and maintain compliance with applicable regulatory standards. Selection should be based on circuit power dissipation requirements, available inventory, and specific temperature operating range constraints.

Frequently Asked Questions (FAQ)

Q: Can SMCJ90A (Fairchild Semiconductor) be used as a direct replacement for SMCJ90AE3/TR13?

A: Yes, SMCJ90A is a direct electrical equivalent with identical voltage and current specifications. The primary difference is packaging format (Bulk versus Tape & Reel) and minimum operating temperature (-55°C versus -65°C). If the application operates above -55°C, this part is fully interchangeable.

Q: What is the difference between direct equivalents and enhanced substitutes?

A: Direct equivalents (SMCJ90A, SMCJ90A-13-F, SMCJ90A-E3/57T) maintain the same 10.3A peak pulse current and 1500W power rating as the primary part. Enhanced substitutes (SMDJ90A, SMLJ90A, 5.0SMDJ90A, 5.0SMDJ90A-T7) provide higher current and power ratings (20.6A to 34.3A, 3000W to 5000W) while maintaining identical voltage protection thresholds. Enhanced substitutes are suitable for applications with higher transient energy requirements.

Q: Are all substitute parts compatible with the DO-214AB (SMC) package footprint?

A: Yes, all listed substitute parts use the DO-214AB (SMC) surface-mount package and are mechanically compatible with the primary part's PCB footprint.

Q: Does operating temperature range affect part selection?

A: Operating temperature range affects part selection only if the application requires operation below -55°C. The primary part SMCJ90AE3/TR13 and Littelfuse 5.0SMDJ90A-T7 support -65°C minimum temperature. All other substitutes operate from -55°C minimum. If the application operates within -55°C to 150°C range, temperature range does not restrict part selection.

Q: Which substitute part should be selected for maximum transient energy absorption?

A: The 5.0SMDJ90A (Taiwan Semiconductor Corporation) and 5.0SMDJ90A-T7 (Littelfuse Inc.) provide the highest transient energy absorption capacity at 5000W peak pulse power with 34.3A peak pulse current. The Littelfuse variant is preferred if extended lower temperature operation (-65°C) is required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are RoHS3 compliant. REACH status varies: most parts are REACH Unaffected, while SMLJ90A (Bourns Inc.) is REACH Affected. Verify REACH compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the inventory availability of substitute parts?

A: Inventory levels vary by manufacturer and part number. SMCJ90A (Fairchild) has the highest inventory at 30,200 pieces. SMDJ90A and SMLJ90A each have 15,100 pieces available. Specific inventory should be confirmed with the component supplier for current availability.

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