SMAJ130C Equivalent & Substitute Parts

Part Overview

The SMAJ130C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 130V reverse standoff voltage and provides clamping at 219.45V with a peak pulse current of 1.9A. The SMAJ130C is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMAJ130C
Manufacturer	Littelfuse
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Voltage - Reverse Standoff (Typ)	130V
Voltage - Breakdown (Min)	136.35V
Voltage - Clamping (Max) @ Ipp	219.45V
Current - Peak Pulse (10/1000µs)	1.9A
Power - Peak Pulse	400W
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the SMAJ130C is determined by the following critical parameters:

Voltage - Reverse Standoff (Typ): 130V
Package / Case: DO-214AC (SMA)
Mounting Type: Surface Mount
Type: Zener (Bidirectional, 1 Channel)
RoHS Status: ROHS3 Compliant

All identified substitute parts maintain the 130V reverse standoff voltage and DO-214AC (SMA) package configuration, ensuring mechanical and electrical compatibility. Variations in clamping voltage (209V to 231V) and peak pulse current (1.9A to 2.4A) are within acceptable tolerance ranges for general-purpose TVS applications. All substitutes are active products with current manufacturing status and full RoHS3 compliance.

Parameter Comparison

Parameter	SMAJ130C (Littelfuse)	SMAJ130CA (Meritek)	SMAJ130CA-TP (Micro Commercial Co)	SMAJ130CAE3/TR13 (Microchip)	SMAJ130CE3/TR13 (Microchip)	TV04A131JB-G (Comchip)
Voltage - Reverse Standoff (Typ)	130V	130V	130V	130V	130V	130V
Voltage - Breakdown (Min)	136.35V	144V	144V	144V	144V	144V
Voltage - Clamping (Max) @ Ipp	219.45V	209V	209V	209V	231V	209V
Current - Peak Pulse (10/1000µs)	1.9A	1.91A	1.9A	2.4A	2.2A	1.91A
Power - Peak Pulse	400W	400W	400W	500W	500W	400W
Package / Case	DO-214AC, SMA	DO-214AC (SMA)	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Operating Temperature	-65°C ~ 150°C (TJ)	-55°C ~ 150°C	-55°C ~ 175°C (TA)	-65°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed are active products with full ROHS3 compliance and current manufacturing availability. Selection among substitutes should be based on the following factors:

SMAJ130CA (Meritek) and TV04A131JB-G (Comchip) provide the closest electrical match to the original SMAJ130C, with clamping voltages of 209V and peak pulse currents of 1.91A. Both are suitable for direct replacement in applications where the original 219.45V clamping specification is not critical.

SMAJ130CA-TP (Micro Commercial Co) offers extended operating temperature range to 175°C and maintains 400W peak pulse power, making it suitable for applications requiring higher thermal performance.

SMAJ130CAE3/TR13 and SMAJ130CE3/TR13 (Microchip Technology) provide enhanced specifications with 500W peak pulse power and higher peak pulse currents (2.4A and 2.2A respectively), offering improved transient suppression capability. SMAJ130CE3/TR13 features a higher clamping voltage of 231V.

All substitutes maintain the DO-214AC (SMA) package configuration and surface-mount compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can SMAJ130CA be used as a direct replacement for SMAJ130C?

A: Yes. Both parts share the 130V reverse standoff voltage, DO-214AC (SMA) package, and general-purpose TVS application profile. The clamping voltage difference (209V vs 219.45V) and peak pulse current variation (1.91A vs 1.9A) are within acceptable tolerance for most circuit designs.

Q: What is the difference between SMAJ130CAE3/TR13 and SMAJ130CE3/TR13?

A: Both are Microchip products with identical reverse standoff voltage (130V) and package (DO-214AC, SMA). The primary differences are clamping voltage (209V vs 231V) and peak pulse current (2.4A vs 2.2A). SMAJ130CAE3/TR13 provides higher current handling, while SMAJ130CE3/TR13 provides higher voltage clamping.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and suitable for applications requiring environmental compliance.

Q: Does package compatibility affect substitution?

A: No. All substitute parts use the DO-214AC (SMA) package, ensuring identical PCB footprint and mounting compatibility with the original SMAJ130C design.

Q: Which substitute offers the best thermal performance?

A: SMAJ130CA-TP (Micro Commercial Co) provides the extended operating temperature range of -55°C to 175°C, compared to -65°C to 150°C for most alternatives, making it suitable for high-temperature applications.

Q: Can SMAJ130CAE3/TR13 or SMAJ130CE3/TR13 be used in place of SMAJ130C?

A: Yes. Both Microchip parts are functionally compatible with enhanced specifications. SMAJ130CAE3/TR13 offers higher peak pulse current (2.4A) and 500W power rating, while SMAJ130CE3/TR13 offers higher clamping voltage (231V) and 500W power rating. Both are suitable for applications requiring improved transient suppression performance.

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