SMBJ13A-13 Equivalent & Substitute Parts

Part Overview

The SMBJ13A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the SMB (DO-214AA) package. This component is designed for general-purpose transient voltage suppression applications with a 13V reverse standoff voltage and 21.5V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMBJ13A-13
Manufacturer	Diodes Incorporated
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	13V
Voltage - Breakdown (Min)	14.4V
Voltage - Clamping (Max) @ Ipp	21.5V
Current - Peak Pulse (10/1000µs)	27.9A
Power - Peak Pulse	600W
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SMBJ13A-13 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 13V
Voltage - Breakdown (Min): 14.4V
Voltage - Clamping (Max) @ Ipp: 21.5V
Current - Peak Pulse (10/1000µs): 27.9A ± tolerance
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB (or functionally equivalent surface-mount package)
Type: Zener, Unidirectional

All substitute parts listed maintain these core electrical specifications within acceptable engineering tolerances. Package variations (SMB, SOD-128) are noted where they differ from the original DO-214AA footprint.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Operating Temperature	Package / Case	Product Status	RoHS Status
SMBJ13A-13	Diodes Incorporated	13V	14.4V	21.5V	27.9A	600W	-55°C ~ 150°C (TJ)	DO-214AA, SMB	Discontinued	RoHS non-compliant
SMBJ13A-13-F	Diodes Incorporated	13V	14.4V	21.5V	27.9A	600W	-55°C ~ 150°C (TJ)	DO-214AA, SMB	Active	ROHS3 Compliant
SMBJ13A-TP	Micro Commercial Co	13V	14.4V	21.5V	27.9A	600W	-55°C ~ 175°C (TJ)	DO-214AA, SMB	Active	ROHS3 Compliant
PTVS13VP1UP,115	Nexperia USA Inc.	13V	14.4V	21.5V	27.9A	600W	-55°C ~ 150°C (TA)	SOD-128	Active	ROHS3 Compliant
SMBJ13A-TR	STMicroelectronics	13V	14.4V	21.5V	29A	600W	-55°C ~ 150°C (TJ)	DO-214AA, SMB	Active	ROHS3 Compliant
SMBJ13A	MDD	13V	14.4V	21.5V	28A	600W	-50°C ~ 150°C (TJ)	DO-214AA, SMB	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute (Direct Replacement): SMBJ13A-13-F (Diodes Incorporated)

This part is manufactured by the original component supplier and maintains identical electrical and thermal specifications. It is ROHS3 compliant and currently in active production with high inventory availability (35,300 units). This is the recommended first choice for direct substitution.

Alternative Substitutes (Functionally Equivalent):

SMBJ13A-TP (Micro Commercial Co) provides identical electrical performance with an extended operating temperature range (-55°C ~ 175°C) compared to the original part (-55°C ~ 150°C). This part is suitable for applications requiring higher thermal margins.

SMBJ13A-TR (STMicroelectronics) maintains all critical electrical parameters with a slightly higher peak pulse current specification (29A vs. 27.9A), providing additional margin. This part is ROHS3 compliant and actively produced.

SMBJ13A (MDD) offers equivalent electrical performance with a marginally reduced lower operating temperature limit (-50°C vs. -55°C). This part is ROHS3 compliant with substantial inventory availability (56,400 units).

Package Consideration: PTVS13VP1UP,115 (Nexperia USA Inc.) is electrically equivalent but uses the SOD-128 package instead of SMB (DO-214AA). This part is AEC-Q101 qualified for automotive applications. Selection of this part requires PCB layout modification to accommodate the different footprint.

All substitute parts are ROHS3 compliant, addressing the non-compliance status of the original SMBJ13A-13.

Frequently Asked Questions (FAQ)

Q: Can I use PTVS13VP1UP,115 as a direct replacement on my existing PCB?

A: No. PTVS13VP1UP,115 uses the SOD-128 package, while the original SMBJ13A-13 uses the SMB (DO-214AA) package. These packages have different footprints and pin configurations. PCB layout modification is required.

Q: What is the difference between SMBJ13A-13-F and SMBJ13A-13?

A: SMBJ13A-13-F is the tape-and-reel packaged version of the same part. Both are manufactured by Diodes Incorporated with identical electrical specifications. The main difference is packaging format and RoHS compliance status (SMBJ13A-13-F is ROHS3 compliant).

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts are ROHS3 compliant. The original SMBJ13A-13 is RoHS non-compliant. If RoHS compliance is required for your application, any of the substitute parts will satisfy this requirement.

Q: Which substitute part has the widest operating temperature range?

A: SMBJ13A-TP (Micro Commercial Co) offers the widest operating temperature range at -55°C ~ 175°C, compared to -55°C ~ 150°C for most other substitutes.

Q: Can I substitute SMBJ13A-TR for SMBJ13A-13 if my circuit requires 27.9A peak pulse current?

A: Yes. SMBJ13A-TR is rated for 29A peak pulse current, which exceeds the 27.9A requirement of the original part. This provides additional design margin.

Q: Is PTVS13VP1UP,115 suitable for automotive applications?

A: Yes. PTVS13VP1UP,115 carries AEC-Q101 qualification, making it suitable for automotive-grade applications. However, the SOD-128 package requires PCB redesign.

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