SMBJ14A-13 Equivalent & Substitute Parts

Part Overview

The SMBJ14A-13 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications with a 14V reverse standoff voltage and 23.2V maximum clamping voltage. The SMBJ14A-13 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	14V
Voltage - Breakdown (Min)	15.6V
Voltage - Clamping (Max) @ Ipp	23.2V
Current - Peak Pulse (10/1000µs)	25.8A
Power - Peak Pulse	600W
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Type	Zener
Unidirectional Channels	1

Substitute Part Grouping Explanation

Substitute parts for the SMBJ14A-13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff: 14V
Voltage - Clamping (Max) @ Ipp: 23.2V
Current - Peak Pulse (10/1000µs): 25.8A to 25.9A
Power - Peak Pulse: 600W
Package / Case: DO-214AA or SMB
Mounting Type: Surface Mount
Type: Zener
Unidirectional Channels: 1

Substitutes are grouped into three categories: direct manufacturer equivalents from Diodes Incorporated, cross-manufacturer direct replacements, and manufacturer-recommended alternatives with different package configurations or enhanced specifications.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse	Power - Peak Pulse	Package	Operating Temperature	Product Status	RoHS Status
SMBJ14A-13	Diodes Incorporated	14V	23.2V	25.8A	600W	DO-214AA, SMB	-55°C ~ 150°C	Discontinued	RoHS non-compliant
SMBJ14A-13-F	Diodes Incorporated	14V	23.2V	25.8A	600W	DO-214AA, SMB	-55°C ~ 150°C	Active	ROHS3 Compliant
SMBJ14A	MDD	14V	23.2V	25.9A	600W	DO-214AA, SMB	-50°C ~ 150°C	Active	ROHS3 Compliant
SMBJ14A-TP	Micro Commercial Co	14V	23.2V	25.8A	600W	DO-214AA, SMB	-55°C ~ 175°C	Active	ROHS3 Compliant
TV06B140J-G	Comchip Technology	14V	23.2V	25.86A	600W	DO-214AA, SMB	Not specified	Active	ROHS3 Compliant
PTVS14VP1UP,115	NXP USA Inc.	14V	23.2V	25.9A	600W	SOD-128	-55°C ~ 150°C	Active	Not specified
SMBJ14A-HR	Littelfuse Inc.	14V	23.2V	25.9A	600W	DO-214AA, SMB	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ14A-HRA	Littelfuse Inc.	14V	23.2V	25.9A	600W	DO-214AA, SMB	-65°C ~ 150°C	Active	ROHS3 Compliant
SMBJ14A-M3/52	Vishay General Semiconductor - Diodes Division	14V	23.2V	25.9A	600W	DO-214AA, SMB	-55°C ~ 150°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute (Same Manufacturer, Same Package): SMBJ14A-13-F from Diodes Incorporated is the direct equivalent with identical electrical specifications and DO-214AA SMB packaging. This part is currently active and ROHS3 compliant, addressing the compliance gap of the discontinued SMBJ14A-13.

Cross-Manufacturer Substitutes (DO-214AA SMB Package): SMBJ14A-TP (Micro Commercial Co), SMBJ14A (MDD), TV06B140J-G (Comchip Technology), SMBJ14A-HR (Littelfuse Inc.), SMBJ14A-HRA (Littelfuse Inc.), and SMBJ14A-M3/52 (Vishay) all meet the electrical specifications with peak pulse currents of 25.8A to 25.9A and maintain the DO-214AA SMB package footprint. All are ROHS3 compliant and active in production.

Alternative Package Substitute: PTVS14VP1UP,115 from NXP USA Inc. provides equivalent electrical performance but uses the SOD-128 package instead of DO-214AA SMB. This substitute requires PCB layout modification and is qualified to AEC-Q101 automotive standards.

Temperature Range Considerations: SMBJ14A-TP extends the upper operating temperature to 175°C compared to the standard 150°C. SMBJ14A-HR and SMBJ14A-HRA extend the lower operating temperature to -65°C. MDD's SMBJ14A operates at -50°C minimum, which is 5°C higher than the original specification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ14A-13-F be used as a direct drop-in replacement for SMBJ14A-13? A: Yes. SMBJ14A-13-F from Diodes Incorporated is electrically and mechanically identical to SMBJ14A-13, with the same DO-214AA SMB package, 14V reverse standoff voltage, 23.2V clamping voltage, and 25.8A peak pulse current. The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant).

Q: Are cross-manufacturer substitutes from MDD, Micro Commercial Co, Comchip, Littelfuse, and Vishay fully compatible? A: Yes, within specified operating conditions. All cross-manufacturer substitutes maintain the critical electrical parameters: 14V reverse standoff, 23.2V clamping voltage, 25.8A to 25.9A peak pulse current, and 600W peak pulse power. All use the DO-214AA SMB package and are ROHS3 compliant. Minor variations exist in operating temperature ranges and peak pulse current (25.8A vs. 25.9A), which do not affect functional compatibility for general-purpose transient voltage suppression.

Q: Why does PTVS14VP1UP,115 use a different package (SOD-128)? A: PTVS14VP1UP,115 from NXP is a manufacturer-recommended alternative that provides equivalent electrical performance but in the SOD-128 package. This requires PCB redesign and is not a direct drop-in replacement. It is qualified to AEC-Q101 automotive standards, making it suitable for automotive applications where the original SMBJ14A-13 may not be specified.

Q: What is the difference between SMBJ14A-HR and SMBJ14A-HRA from Littelfuse? A: Both parts are electrically identical with 14V reverse standoff, 23.2V clamping voltage, and 25.9A peak pulse current in the DO-214AA SMB package. The designation difference (HR vs. HRA) reflects Littelfuse's product line categorization. Both are active, ROHS3 compliant, and operate from -65°C to 150°C.

Q: Can I use SMBJ14A-TP if my application requires operation above 150°C? A: SMBJ14A-TP from Micro Commercial Co extends the upper operating temperature to 175°C, making it suitable for higher temperature environments. All other electrical specifications remain equivalent to SMBJ14A-13.

Q: Are all substitutes available in tape and reel packaging? A: Most substitutes are available in tape and reel (TR) packaging for automated assembly. SMBJ14A from MDD and TV06B140J-G from Comchip are available in bulk or tape and reel configurations. Verify packaging availability with your supplier for production requirements.

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