SMBJ26C-E3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ26C-E3/52 is a bidirectional Zener transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division in the DO-214AA (SMB) surface mount package. This component is rated for 26V reverse standoff voltage with a 46.6V maximum clamping voltage and 12.9A peak pulse current capacity. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	26V
Voltage - Breakdown (Min)	28.9V
Voltage - Clamping (Max) @ Ipp	46.6V
Current - Peak Pulse (10/1000µs)	12.9A
Power - Peak Pulse	600W
Type	Zener
Bidirectional Channels	1
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Operating Temperature	-55°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SMBJ26C-E3/52 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - Reverse Standoff: 26V (exact match required)
Voltage - Breakdown (Min): 28.9V (exact match required)
Package / Case: DO-214AA, SMB (exact match required)
Mounting Type: Surface Mount (exact match required)
Type: Zener, Bidirectional (exact match required)
RoHS Status: ROHS3 Compliant (compliance requirement)

Allowable Variation Parameters:

Voltage - Clamping (Max) @ Ipp: 42.1V to 46.6V (lower clamping voltage acceptable for improved performance)
Current - Peak Pulse (10/1000µs): 12.9A to 14.9A (higher current rating acceptable)
Operating Temperature: -55°C to -65°C minimum; 150°C to 175°C maximum (extended ranges acceptable)
Product Status: Active substitutes preferred over obsolete

Substitute parts meeting these criteria are functionally compatible with the original SMBJ26C-E3/52 in general-purpose transient voltage suppression applications.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse	Operating Temperature	Product Status	Package
SMBJ26C-E3/52	Vishay General Semiconductor	26V	28.9V	46.6V	12.9A	-55°C ~ 150°C	Obsolete	DO-214AA (SMBJ)
SMBJ26CA-E3/52	Vishay General Semiconductor	26V	28.9V	42.1V	14.3A	-55°C ~ 150°C	Active	DO-214AA (SMBJ)
SMBJ26CA-HR	Littelfuse Inc.	26V	28.9V	42.1V	14.3A	-65°C ~ 150°C	Active	DO-214AA (SMBJ)
SMBJ26CA-HRA	Littelfuse Inc.	26V	28.9V	42.1V	14.3A	-65°C ~ 150°C	Active	DO-214AA (SMBJ)
SMBJ26CA	EVVO Semi	26V	28.9V	42.1V	14.3A	-65°C ~ 150°C	Active	DO-214AA, SMB
SMBJ26CA-13-F	Diodes Incorporated	26V	28.9V	42.1V	14.2A	-55°C ~ 150°C	Active	DO-214AA, SMB
SMBJ26CA-TP	Micro Commercial Co	26V	28.9V	42.1V	14.2A	-55°C ~ 175°C	Active	DO-214AA, SMB
SMBJ26CA-TR	STMicroelectronics	26V	28.9V	42.1V	14.9A	-55°C ~ 150°C	Active	DO-214AA, SMB

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and maintain the same electrical specifications for reverse standoff voltage (26V) and breakdown voltage (28.9V) as the original SMBJ26C-E3/52. The primary advantage of substitutes is active product status, ensuring long-term availability and manufacturing support.

Substitute parts feature lower maximum clamping voltages (42.1V versus 46.6V), which represents improved transient suppression performance. Peak pulse current ratings range from 14.2A to 14.9A, exceeding the original 12.9A specification. These characteristics make substitutes suitable for the same general-purpose transient voltage suppression applications.

For applications requiring extended operating temperature ranges, SMBJ26CA-TP (Micro Commercial Co) supports -55°C to 175°C, and SMBJ26CA-HR and SMBJ26CA-HRA (Littelfuse Inc.) support -65°C minimum temperature. Standard substitutes support -55°C to 150°C or -65°C to 150°C ranges.

Frequently Asked Questions (FAQ)

Q: Can SMBJ26CA-E3/52 directly replace SMBJ26C-E3/52?

A: Yes. Both parts share identical reverse standoff voltage (26V), breakdown voltage (28.9V), and DO-214AA package specifications. SMBJ26CA-E3/52 is the active equivalent from the same manufacturer with improved clamping performance (42.1V versus 46.6V) and higher peak pulse current (14.3A versus 12.9A).

Q: What is the difference between Littelfuse SMBJ26CA-HR and SMBJ26CA-HRA?

A: Both parts are electrically identical with 26V standoff voltage, 42.1V clamping voltage, and 14.3A peak pulse current. The difference is in the product series designation (SMBJ-HR versus SMBJ-HRA). Both support extended low-temperature operation to -65°C.

Q: Are all substitute parts in the same DO-214AA package?

A: Yes. All listed substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and footprint compatibility with the original SMBJ26C-E3/52.

Q: Why do substitute parts have lower clamping voltages?

A: The lower maximum clamping voltage (42.1V versus 46.6V) in most substitutes indicates improved transient suppression characteristics. This represents a design enhancement rather than a limitation, as the part still meets the 26V standoff and 28.9V breakdown specifications.

Q: Which substitute offers the widest operating temperature range?

A: SMBJ26CA-TP (Micro Commercial Co) supports -55°C to 175°C, providing the highest maximum junction temperature among listed substitutes.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting the same environmental and regulatory requirements as the original SMBJ26C-E3/52.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message