SMLJ9.0AE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMLJ9.0AE3/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 operates with a 9V reverse standoff voltage and provides 15.4V clamping at peak pulse current, delivering 300W peak pulse power dissipation in a DO-214AB (SMC) package format.

The part is currently in active production status with 847 units in stock. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements where electrical and mechanical parameters align with the original specification.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	9	V
Voltage - Breakdown (Min)	10	V
Voltage - Clamping (Max) @ Ipp	15.4	V
Current - Peak Pulse (10/1000µs)	194.8	A
Power - Peak Pulse	300	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package / Case	DO-214AB, SMC	—
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 SMLJ9.0AE3/TR13 are classified based on strict alignment with the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 9V
Voltage - Clamping (Max) @ Ipp: 15.4V
Unidirectional Channels: 1
Package / Case: DO-214AB or SMC equivalent
Mounting Type: Surface Mount
Type: Zener
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Direct Equivalents maintain all critical electrical parameters (9V standoff, 15.4V clamping) with identical or superior peak pulse current and power ratings, ensuring drop-in compatibility.

Similar Parts maintain voltage specifications but may differ in peak pulse current (Ipp) or power dissipation ratings. These parts are suitable for applications where the lower current or power handling does not exceed circuit requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	Product Status
SMLJ9.0AE3/TR13	Microchip Technology	9V	15.4V	194.8A	300W	-55 to 150°C	DO-214AB, SMC	Active
3SMC9.0A TR13 PBFREE	Central Semiconductor Corp	9V	15.4V	194.8A	3000W	-65 to 150°C	DO-214AB, SMC	Active
SMLJ9.0A	Bourns Inc.	9V	15.4V	194.8A	3000W	-55 to 150°C	DO-214AB, SMC	Active
SMCJ8.5A-13-F	Diodes Incorporated	8.5V	14.4V	104.2A	1500W	-55 to 150°C	DO-214AB, SMC	Active
SMCJ9.0A	Taiwan Semiconductor Corporation	9V	15.4V	102A	1500W	-55 to 150°C	DO-214AB, SMC	Active
SMCJ9.0A-13-F	Diodes Incorporated	9V	15.4V	97.4A	1500W	-55 to 150°C	DO-214AB, SMC	Active
SMDJ9.0A	Alpha & Omega Semiconductor Inc.	9V	15.4V	194.9A	3000W	-55 to 150°C	DO-214AB, SMC	Active

Engineering Selection Recommendations

Direct Equivalents (Recommended for Drop-In Replacement):

The following parts maintain identical voltage specifications and peak pulse current ratings, providing direct functional equivalence:

3SMC9.0A TR13 PBFREE (Central Semiconductor Corp): Matches all critical electrical parameters with enhanced power rating (3000W vs. 300W). Extended lower operating temperature limit (-65°C vs. -55°C). ROHS3 compliant, MSL 1. Inventory: 3992 units.
SMLJ9.0A (Bourns Inc.): Matches all critical electrical parameters with enhanced power rating (3000W vs. 300W). ROHS3 compliant, MSL 1. REACH Affected status. Inventory: 13053 units.
SMDJ9.0A (Alpha & Omega Semiconductor Inc.): Matches all critical electrical parameters with enhanced power rating (3000W vs. 300W). Peak pulse current 194.9A (equivalent to 194.8A). ROHS3 compliant. Inventory: 12100 units.

Similar Parts (Application-Dependent Selection):

The following parts maintain voltage specifications but operate at reduced peak pulse current and power dissipation:

SMCJ9.0A (Taiwan Semiconductor Corporation): 9V standoff, 15.4V clamping, but 102A peak pulse current and 1500W power rating. Suitable for applications with lower transient current requirements. ROHS3 compliant, MSL 1. Inventory: 30100 units.
SMCJ9.0A-13-F (Diodes Incorporated): 9V standoff, 15.4V clamping, but 97.4A peak pulse current and 1500W power rating. Suitable for applications with lower transient current requirements. ROHS3 compliant, MSL 1. Inventory: 3100 units.
SMCJ8.5A-13-F (Diodes Incorporated): 8.5V standoff, 14.4V clamping, 104.2A peak pulse current, 1500W power rating. Voltage parameters differ from original specification. Use only where 8.5V standoff voltage is acceptable for the application. ROHS3 compliant, MSL 1. Inventory: 1023 units.

All substitute parts are active production items with ROHS3 compliance and MSL 1 (unlimited moisture sensitivity). Selection should be based on circuit requirements for peak pulse current handling and power dissipation capacity.

Frequently Asked Questions (FAQ)

Q: Can SMCJ9.0A be used as a direct replacement for SMLJ9.0AE3/TR13?

A: SMCJ9.0A maintains identical voltage specifications (9V standoff, 15.4V clamping) and is electrically compatible. However, peak pulse current is 102A compared to 194.8A in the original part. Use SMCJ9.0A only if circuit transient current does not exceed 102A. Power dissipation is 1500W versus 300W in the original.

Q: What is the difference between the 300W and 3000W power ratings?

A: Power rating indicates the maximum peak pulse power the device can dissipate during a transient event. The original SMLJ9.0AE3/TR13 is rated for 300W peak pulse. Direct equivalents (3SMC9.0A TR13 PBFREE, SMLJ9.0A, SMDJ9.0A) are rated for 3000W, providing enhanced transient protection capability. Both ratings are valid for the same voltage specifications; selection depends on circuit transient energy requirements.

Q: Is SMCJ8.5A-13-F compatible with SMLJ9.0AE3/TR13?

A: SMCJ8.5A-13-F differs in voltage specifications: 8.5V standoff versus 9V, and 14.4V clamping versus 15.4V. This part is not a direct equivalent. Use only if the application circuit can tolerate the lower voltage thresholds.

Q: Are all substitute parts in the same DO-214AB package?

A: Yes. All listed substitute parts use DO-214AB (SMC) surface-mount package format, ensuring mechanical and footprint compatibility with the original SMLJ9.0AE3/TR13.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 indicates the component has unlimited shelf life and does not require special moisture-controlled storage or handling. All listed parts carry MSL 1 classification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, meeting environmental and hazardous substance restrictions.

Q: Which substitute part has the highest inventory availability?

A: SMCJ9.0A (Taiwan Semiconductor Corporation) has the highest inventory with 30100 units in stock. SMLJ9.0A (Bourns Inc.) has 13053 units. Both maintain identical voltage specifications to the original part.

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