SMAJ130CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMAJ130CE3/TR13 is a transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates with a reverse standoff voltage of 130V and provides clamping protection at 231V maximum. The component is housed in a DO-214AC (SMA) package and is suitable for protecting sensitive electronic circuits from transient voltage events.

The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are necessary when the primary manufacturer part is unavailable, when alternative sourcing is required for supply chain optimization, or when design specifications allow for minor variations in electrical performance within acceptable operating parameters.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	130	V
Voltage - Breakdown (Min)	144	V
Voltage - Clamping (Max) @ Ipp	231	V
Current - Peak Pulse (10/1000µs)	2.2	A
Power - Peak Pulse	500	W
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature	-65 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the SMAJ130CE3/TR13 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 130V
Voltage - Breakdown (Min): 144V
Package / Case: DO-214AC (SMA)
Mounting Type: Surface Mount
Bidirectional Channels: 1
Type: Zener

Allowable Variation Parameters:

Voltage - Clamping (Max) @ Ipp: Range 209V to 231V
Current - Peak Pulse (10/1000µs): Range 1.4A to 2.2A
Power - Peak Pulse: Range 300W to 500W
Operating Temperature: Minimum -55°C (acceptable; original is -65°C)
RoHS Status: ROHS3 Compliant (required)

All substitute parts listed maintain identical reverse standoff voltage, breakdown voltage, and package specifications. Variations in clamping voltage and peak pulse current reflect different manufacturer designs within the SMAJ130 series, all suitable for general-purpose transient voltage suppression applications.

Parameter Comparison

Parameter	SMAJ130CE3/TR13 (Microchip)	SMAJ130CA (Meritek)	SMAJ130CA-13-F (Diodes Inc)	SMAJ130CA-E3/61 (Vishay)	SMAJ130CA-TP (MCC)
Manufacturer	Microchip Technology	Meritek	Diodes Incorporated	Vishay General Semiconductor	Micro Commercial Co
Voltage - Reverse Standoff (Typ)	130V	130V	130V	130V	130V
Voltage - Breakdown (Min)	144V	144V	144V	144V	144V
Voltage - Clamping (Max) @ Ipp	231V	209V	209V	209V	209V
Current - Peak Pulse (10/1000µs)	2.2A	1.91A	1.9A	1.4A	1.9A
Power - Peak Pulse	500W	400W	400W	300W	400W
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Operating Temperature	-65 to 150°C (TJ)	-55 to 150°C	-55 to 150°C (TJ)	-55 to 150°C (TJ)	-55 to 175°C (TA)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts maintain full compliance with ROHS3 and REACH regulations, ensuring regulatory compatibility with the original SMAJ130CE3/TR13. Each substitute part is in active production status with confirmed inventory availability.

Clamping Voltage Consideration: The original part specifies 231V maximum clamping voltage, while all substitute parts specify 209V maximum clamping voltage. This 22V difference represents a lower clamping threshold in substitute parts. Applications requiring the specific 231V clamping characteristic of the original part should not use substitutes with 209V clamping specifications.

Peak Pulse Current Consideration: The original part is rated for 2.2A peak pulse current. Substitute parts range from 1.4A to 1.91A. Applications with peak pulse current requirements exceeding 1.91A should not use the Vishay SMAJ130CA-E3/61 (1.4A rating). The Meritek SMAJ130CA, Diodes Incorporated SMAJ130CA-13-F, and Micro Commercial Co SMAJ130CA-TP all support 1.9A to 1.91A peak pulse current.

Power Dissipation Consideration: The original part dissipates 500W peak pulse power. Substitute parts dissipate 300W to 400W. Applications with peak pulse power requirements exceeding 400W should not use the Vishay SMAJ130CA-E3/61 (300W rating).

Temperature Range Consideration: The original part operates from -65°C to 150°C. Most substitute parts operate from -55°C to 150°C, representing a 10°C reduction in minimum operating temperature. The Micro Commercial Co SMAJ130CA-TP extends to 175°C maximum, providing enhanced high-temperature performance.

Automotive Grade: The Diodes Incorporated SMAJ130CA-13-F carries an automotive grade designation, suitable for automotive applications requiring enhanced reliability standards.

Frequently Asked Questions (FAQ)

Q: Can I use SMAJ130CA-E3/61 (Vishay) as a direct replacement for SMAJ130CE3/TR13 (Microchip)?

A: The SMAJ130CA-E3/61 is electrically compatible for general-purpose transient voltage suppression applications. However, it has lower peak pulse current (1.4A vs. 2.2A) and peak pulse power (300W vs. 500W) ratings. Use this substitute only if your application peak pulse current does not exceed 1.4A and peak pulse power does not exceed 300W.

Q: What is the difference between the clamping voltages of the original part and the substitutes?

A: The original SMAJ130CE3/TR13 clamps at a maximum of 231V, while all substitute parts clamp at a maximum of 209V. This 22V difference means substitute parts will limit transient voltages to a lower threshold. Verify that your circuit protection requirements are satisfied with 209V clamping before using substitutes.

Q: Are all substitute parts in the same DO-214AC (SMA) package?

A: Yes. All substitute parts use the DO-214AC (SMA) surface-mount package, ensuring mechanical and footprint compatibility with the original part. No PCB layout modifications are required.

Q: Which substitute part has the highest operating temperature rating?

A: The Micro Commercial Co SMAJ130CA-TP supports operating temperatures up to 175°C (ambient), compared to 150°C for the original part and other substitutes. This part is suitable for high-temperature applications.

Q: Is the Diodes Incorporated SMAJ130CA-13-F suitable for automotive applications?

A: Yes. The Diodes Incorporated SMAJ130CA-13-F carries an automotive grade designation, making it suitable for automotive circuit protection applications requiring enhanced reliability standards.

Q: What is the minimum operating temperature difference between the original part and most substitutes?

A: The original SMAJ130CE3/TR13 operates from -65°C minimum, while most substitute parts operate from -55°C minimum, representing a 10°C reduction in cold-temperature capability. Verify that your application does not require operation below -55°C before using substitutes.

Q: Can I use SMAJ130CA (Meritek) in high-reliability applications?

A: The Meritek SMAJ130CA is in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. It is suitable for general-purpose applications. For automotive or high-reliability applications, consider the Diodes Incorporated SMAJ130CA-13-F (automotive grade) or Vishay SMAJ130CA-E3/61 (TransZorb series).

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the original SMAJ130CE3/TR13.

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