SMBJ150CAHE3/52 Equivalent & Substitute Parts

Part Overview

The SMBJ150CAHE3/52 is a transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AA (SMB) package. This bidirectional Zener diode provides transient overvoltage protection with a 150V reverse standoff voltage and 243V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMBJ150CAHE3/52
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Type	Zener, Bidirectional
Voltage - Reverse Standoff (Typ)	150V
Voltage - Breakdown (Min)	167V
Voltage - Clamping (Max) @ Ipp	243V
Current - Peak Pulse (10/1000µs)	2.5A
Power - Peak Pulse	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 (MSL)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution of the SMBJ150CAHE3/52 is determined by strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 150V
Voltage - Breakdown (Min): 167V
Voltage - Clamping (Max) @ Ipp: 243V
Current - Peak Pulse (10/1000µs): 2.5A
Power - Peak Pulse: 600W
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Bidirectional Channels: 1

All substitute parts listed maintain identical electrical specifications for voltage suppression performance and mechanical compatibility. Variations in operating temperature range, manufacturer, and product status (active vs. discontinued) do not affect functional substitution capability when these core parameters are matched.

Parameter Comparison

Part Number	Manufacturer	VWM (Typ)	VBR (Min)	VC (Max)	Ipp	PPP	Package	Temp Range	Status
SMBJ150CAHE3/52	Vishay	150V	167V	243V	2.5A	600W	DO-214AA	-55°C ~ 150°C	Discontinued
SMBJ150CA-E3/52	Vishay	150V	167V	243V	2.5A	600W	DO-214AA	-55°C ~ 150°C	Active
SMBJ150CA-M3/5B	Vishay	150V	167V	243V	2.5A	600W	DO-214AA	-55°C ~ 150°C	Active
SMBJ150CA	MDD	150V	167V	243V	2.5A	600W	DO-214AA	-50°C ~ 150°C	Active
SMBJ150CA-13-F	Diodes Incorporated	150V	167V	243V	2.5A	600W	DO-214AA	-55°C ~ 150°C	Active
SMBJ150CA-HR	Littelfuse Inc.	150V	167V	243V	2.5A	600W	DO-214AA	-65°C ~ 150°C	Active
SMBJ150CA-HRA	Littelfuse Inc.	150V	167V	243V	2.5A	600W	DO-214AA	-65°C ~ 150°C	Active
SMBJ150CA-TP	Micro Commercial Co	150V	167V	243V	2.5A	600W	DO-214AA	-55°C ~ 175°C	Active
SMBJ150CAE3/TR13	Microchip Technology	150V	167V	243V	2.5A	600W	DO-214AA	-65°C ~ 150°C	Active

Engineering Selection Recommendations

All listed substitute parts meet the electrical and mechanical requirements for direct replacement of the SMBJ150CAHE3/52. Selection among active alternatives should be based on:

Procurement Availability: SMBJ150CA-E3/52 and SMBJ150CA-M3/5B from Vishay maintain the same manufacturer lineage and operating temperature range as the original part, offering the closest functional equivalence.

Extended Temperature Range: SMBJ150CA-HR, SMBJ150CA-HRA, and SMBJ150CAE3/TR13 provide expanded low-temperature operation (-65°C minimum) compared to the original specification (-55°C minimum), suitable for applications requiring enhanced cold-temperature performance.

Enhanced High-Temperature Performance: SMBJ150CA-TP from Micro Commercial Co extends the maximum operating temperature to 175°C, accommodating designs with elevated thermal environments.

Compliance and Certification: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical electrical specifications. Selection should prioritize parts with active product status and established supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can SMBJ150CA from MDD be used as a direct replacement for SMBJ150CAHE3/52?

A: Yes. The SMBJ150CA from MDD provides identical electrical performance across all critical parameters: 150V reverse standoff, 167V minimum breakdown, 243V maximum clamping, and 2.5A peak pulse current. The operating temperature range differs slightly (-50°C to 150°C vs. -55°C to 150°C), which does not affect substitution capability for most applications.

Q: What is the difference between Vishay SMBJ150CA-E3/52 and SMBJ150CA-M3/5B?

A: Both parts are manufactured by Vishay with identical electrical specifications and operating temperature ranges. The difference lies in packaging designation (E3/52 vs. M3/5B), which reflects different tape and reel configurations. Electrical performance and PCB compatibility remain unchanged.

Q: Are Littelfuse SMBJ150CA-HR and SMBJ150CA-HRA interchangeable?

A: Yes. Both Littelfuse parts maintain identical electrical specifications and operating temperature ranges (-65°C to 150°C). The HR and HRA designations indicate different product series within Littelfuse's TVS diode portfolio but do not affect functional substitution.

Q: Does the extended temperature range of SMBJ150CA-TP (-55°C to 175°C) affect circuit performance?

A: No. Extended temperature range indicates enhanced thermal capability but does not alter the core electrical parameters that determine TVS diode performance. The part remains functionally equivalent for applications operating within the original specification range.

Q: Can I use SMBJ150CAE3/TR13 from Microchip Technology as a substitute?

A: Yes. The SMBJ150CAE3/TR13 provides identical electrical specifications and is rated for -65°C to 150°C operation. The part is actively manufactured and maintains full ROHS3 compliance and MSL 1 rating.

Q: What packaging considerations apply when selecting a substitute?

A: All substitute parts use the DO-214AA (SMB) surface mount package. Tape and reel configurations vary by manufacturer and part number suffix, but PCB footprint and soldering requirements remain identical. Verify tape and reel specifications with your procurement system if automated pick-and-place equipment is used.

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