SMBJ14C-E3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ14C-E3/52 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 14V reverse standoff voltage, 25.8V maximum clamping voltage, and 23.3A peak pulse current capability in a DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Reverse Standoff Voltage (Typ)	14V
Breakdown Voltage (Min)	15.6V
Clamping Voltage (Max) @ Ipp	25.8V
Peak Pulse Current (10/1000µs)	23.3A
Peak Pulse Power	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ14C-E3/52 is determined by the following critical parameters:

Reverse Standoff Voltage: 14V (exact match required)
Breakdown Voltage (Min): 15.6V (exact match required)
Package / Case: DO-214AA, SMB (exact match required)
Mounting Type: Surface Mount (exact match required)
Bidirectional Channels: 1 (exact match required)
Type: Zener (exact match required)

Substitute parts must maintain identical electrical performance within the specified voltage and current ratings. Clamping voltage and peak pulse current may vary within acceptable engineering tolerances for the 14V class TVS diode category. All qualified substitutes are RoHS3 compliant with MSL 1 rating.

Parameter Comparison

Part Number	Manufacturer	Clamping Voltage (Max) @ Ipp	Peak Pulse Current (10/1000µs)	Operating Temperature Range	Product Status	Packaging
SMBJ14C-E3/52	Vishay General Semiconductor	25.8V	23.3A	-55°C ~ 150°C	Obsolete	DO-214AA
SMBJ14CA-E3/52	Vishay General Semiconductor	23.2V	25.9A	-55°C ~ 150°C	Active	DO-214AA (CT & Digi-Reel)
SMBJ14CE3/TR13	Microchip Technology	25.8V	23.3A	-65°C ~ 150°C	Active	SMBJ (DO-214AA, TR)
SMBJ14CA	MDD	23.2V	25.9A	-50°C ~ 150°C	Active	SMB/DO-214AA
SMBJ14CA-13-F	Diodes Incorporated	23.2V	25.8A	-55°C ~ 150°C	Active	SMB (TR)
SMBJ14CAE3/TR13	Microchip Technology	23.2V	25.8A	-65°C ~ 150°C	Active	SMBJ (DO-214AA, TR)
TV06B140JB-G	Comchip Technology	23.2V	25.86A	Not specified	Active	DO-214AA (SMB, TR)

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the SMBJ14C-E3/52. Selection should prioritize active product status and established supply availability.

SMBJ14CA-E3/52 (Vishay) and SMBJ14CE3/TR13 (Microchip) provide the closest electrical match to the original part, with identical clamping voltage and peak pulse current specifications. Both manufacturers maintain active product status and full RoHS3 compliance.

SMBJ14CA (MDD), SMBJ14CA-13-F (Diodes Incorporated), and SMBJ14CAE3/TR13 (Microchip) offer alternative sourcing with minor variations in clamping voltage (23.2V vs. 25.8V) and peak pulse current (25.8A–25.9A vs. 23.3A). These variations remain within acceptable operating parameters for 14V class TVS diodes.

TV06B140JB-G (Comchip Technology) provides an additional sourcing option with equivalent electrical performance. Operating temperature range is not specified for this part.

All substitutes maintain DO-214AA (SMB) package compatibility, surface-mount configuration, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can SMBJ14CA-E3/52 directly replace SMBJ14C-E3/52?

A: Yes. Both parts share identical reverse standoff voltage (14V), breakdown voltage (15.6V), package (DO-214AA), and mounting type. SMBJ14CA-E3/52 is actively manufactured by Vishay and is the recommended primary substitute.

Q: What is the difference between clamping voltage variations (25.8V vs. 23.2V)?

A: Both voltage levels fall within the acceptable clamping range for 14V class TVS diodes. The 25.8V specification provides slightly higher voltage clamping, while 23.2V offers lower clamping with higher peak pulse current capability. Selection depends on circuit protection requirements.

Q: Are all substitutes compatible with existing PCB layouts?

A: Yes. All listed substitutes use the DO-214AA (SMB) package with identical footprint and pin configuration. No PCB redesign is required.

Q: What is the significance of operating temperature range differences?

A: The original part operates from -55°C to 150°C. Microchip parts (SMBJ14CE3/TR13, SMBJ14CAE3/TR13) extend the lower temperature limit to -65°C. MDD's SMBJ14CA operates from -50°C to 150°C. Selection should match the application's thermal requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance status.

Q: What packaging options are available?

A: SMBJ14CA-E3/52 is available in Cut Tape (CT) and Digi-Reel packaging. SMBJ14CE3/TR13, SMBJ14CA-13-F, SMBJ14CAE3/TR13, and TV06B140JB-G are supplied in Tape & Reel (TR) format. Standard packaging selection depends on procurement and assembly requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message