SMAJ130A-13 Equivalent & Substitute Parts

Part Overview

The SMAJ130A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. The device features a 130V reverse standoff voltage, 209V maximum clamping voltage, and 1.9A peak pulse current capability in a DO-214AC (SMA) package. This part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and new designs.

Key Parameters

Parameter	Value	Unit
Type	Zener	—
Unidirectional Channels	1	—
Voltage - Reverse Standoff (Typ)	130	V
Voltage - Breakdown (Min)	144	V
Voltage - Clamping (Max) @ Ipp	209	V
Current - Peak Pulse (10/1000µs)	1.9	A
Power - Peak Pulse	400	W
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	DO-214AC, SMA	—

Substitute Part Grouping Explanation

Substitution eligibility for the SMAJ130A-13 is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff (Typ): 130V
Voltage - Breakdown (Min): 144V
Voltage - Clamping (Max) @ Ipp: 209V
Current - Peak Pulse (10/1000µs): 1.9A minimum
Power - Peak Pulse: 400W
Package / Case: DO-214AC (SMA)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C minimum to 150°C maximum

All identified substitute parts meet these electrical and mechanical requirements. Packaging format (bulk vs. tape & reel) does not affect electrical equivalence but may impact procurement and assembly workflows.

Parameter Comparison

Parameter	SMAJ130A-13 (Main)	SMAJ130A-13-F	SMAJ130A (Meritek)	SMAJ130A-TP
Manufacturer	Diodes Incorporated	Diodes Incorporated	Meritek	Micro Commercial Co
Type	Zener	Zener	Zener	Zener
Voltage - Reverse Standoff (Typ)	130V	130V	130V	130V
Voltage - Breakdown (Min)	144V	144V	144V	144V
Voltage - Clamping (Max) @ Ipp	209V	209V	209V	209V
Current - Peak Pulse (10/1000µs)	1.9A	1.9A	1.91A	1.9A
Power - Peak Pulse	400W	400W	400W	400W
Operating Temperature Range	-55 to 150°C (TJ)	-55 to 150°C (TJ)	-55 to 150°C	-55 to 175°C (TA)
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC (SMA)	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Discontinued	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Inventory Availability	885 Pcs	17100 Pcs	10300 Pcs	6100 Pcs

Engineering Selection Recommendations

All three substitute parts—SMAJ130A-13-F, SMAJ130A (Meritek), and SMAJ130A-TP—are electrically and mechanically equivalent to the discontinued SMAJ130A-13 and are suitable for direct replacement in circuit designs.

SMAJ130A-13-F (Diodes Incorporated) maintains manufacturer continuity with the original part and carries ROHS3 compliance certification. This option is recommended for designs requiring original manufacturer lineage and offers the highest inventory availability at 17,100 units.

SMAJ130A (Meritek) provides equivalent electrical performance with ROHS3 compliance and active product status. The peak pulse current specification of 1.91A exceeds the minimum 1.9A requirement. This part is available in 10,300 units.

SMAJ130A-TP (Micro Commercial Co) is designated as the manufacturer-recommended substitute and offers the widest operating temperature range (-55 to 175°C ambient), providing additional thermal margin in high-temperature applications. ROHS3 compliance and active status are confirmed. Inventory availability is 6,100 units.

All substitute parts are packaged in tape & reel format, suitable for automated assembly processes. The original SMAJ130A-13 bulk packaging should be evaluated against procurement and assembly requirements when selecting alternatives.

Frequently Asked Questions (FAQ)

Q: Can SMAJ130A-13-F be used as a direct replacement for SMAJ130A-13?

A: Yes. SMAJ130A-13-F is electrically and mechanically identical to SMAJ130A-13, with identical voltage ratings (130V standoff, 209V clamping), current specifications (1.9A peak pulse), and package format (DO-214AC SMA). The primary difference is packaging format (tape & reel vs. bulk) and active product status with ROHS3 compliance.

Q: What is the difference between SMAJ130A from Meritek and SMAJ130A-TP from Micro Commercial Co?

A: Both parts meet the electrical requirements of the original SMAJ130A-13. The Meritek version specifies 1.91A peak pulse current and -55 to 150°C operating range. The Micro Commercial Co version (SMAJ130A-TP) specifies 1.9A peak pulse current and -55 to 175°C operating range. Selection depends on thermal environment requirements and preferred supplier.

Q: Does packaging format (bulk vs. tape & reel) affect electrical performance?

A: No. Packaging format affects procurement, storage, and assembly workflow only. Electrical and mechanical specifications remain identical regardless of packaging format. Tape & reel packaging is standard for automated surface-mount assembly.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts carry ROHS3 compliance certification. The original SMAJ130A-13 is RoHS non-compliant. Designs requiring RoHS compliance must transition to one of the substitute parts.

Q: Which substitute part has the best inventory availability?

A: SMAJ130A-13-F from Diodes Incorporated offers the highest inventory availability at 17,100 units, followed by SMAJ130A from Meritek at 10,300 units, and SMAJ130A-TP from Micro Commercial Co at 6,100 units.

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