SMBJ150-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ150-E3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose transient voltage suppression applications in surface-mount configurations using the DO-214AA (SMB) package. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Reverse Standoff (Typ)	150V
Voltage - Breakdown (Min)	167V
Voltage - Clamping (Max) @ Ipp	268V
Current - Peak Pulse (10/1000µs)	2.2A
Power - Peak Pulse	600W
Operating Temperature Range	-55°C ~ 150°C (TJ)
Package / Case	DO-214AA, SMB
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the SMBJ150-E3/5B is determined by the following critical electrical and mechanical parameters:

Voltage - Reverse Standoff (Typ): 150V (all substitutes must match)
Voltage - Breakdown (Min): 167V (all substitutes must match)
Package / Case: DO-214AA, SMB (all substitutes must match)
Unidirectional Channels: 1 (all substitutes must match)
Mounting Type: Surface Mount (all substitutes must match)

Substitute parts are grouped into two electrical performance categories based on clamping voltage and peak pulse current specifications:

Category A - Matched Clamping Voltage (268V @ 2.2A):

SMBJ150E3/TR13 (Microchip Technology)

Category B - Alternative Clamping Voltage (243V @ 2.5A):

SMBJ150A-E3/5B (Vishay General Semiconductor - Diodes Division)
SMBJ150A (MDD)
SMBJ150A-13-F (Diodes Incorporated)
SMBJ150AE3/TR13 (Microchip Technology)

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	Product Status
SMBJ150-E3/5B	Vishay General Semiconductor - Diodes Division	150V	167V	268V	2.2A	600W	-55°C ~ 150°C	DO-214AA, SMB	Obsolete
SMBJ150E3/TR13	Microchip Technology	150V	167V	268V	2.2A	600W	-65°C ~ 150°C	DO-214AA, SMB	Active
SMBJ150A-E3/5B	Vishay General Semiconductor - Diodes Division	150V	167V	243V	2.5A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active
SMBJ150A	MDD	150V	167V	243V	2.5A	600W	-50°C ~ 150°C	DO-214AA, SMB	Active
SMBJ150A-13-F	Diodes Incorporated	150V	167V	243V	2.5A	600W	-55°C ~ 150°C	DO-214AA, SMB	Active
SMBJ150AE3/TR13	Microchip Technology	150V	167V	243V	2.5A	600W	-65°C ~ 150°C	DO-214AA, SMB	Active

Engineering Selection Recommendations

Direct Replacement (Preferred)

SMBJ150E3/TR13 (Microchip Technology) provides electrical and thermal performance identical to the original SMBJ150-E3/5B. This part maintains the 268V clamping voltage specification and 2.2A peak pulse current. The extended operating temperature range (-65°C to 150°C) provides additional thermal margin. Product status is active with established supply availability.

Alternative Substitutes

SMBJ150A-E3/5B (Vishay General Semiconductor - Diodes Division), SMBJ150A-13-F (Diodes Incorporated), and SMBJ150AE3/TR13 (Microchip Technology) are functionally equivalent alternatives with reduced clamping voltage (243V) and increased peak pulse current (2.5A). These parts maintain the same reverse standoff voltage (150V) and breakdown voltage (167V). All three are active products with established supply chains. SMBJ150A (MDD) offers the highest inventory availability but with a reduced operating temperature minimum of -50°C.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and the DO-214AA surface-mount package required for direct PCB replacement.

Frequently Asked Questions (FAQ)

Q: Can SMBJ150A-E3/5B be used as a direct replacement for SMBJ150-E3/5B?

A: Yes. Both parts share identical reverse standoff voltage (150V) and breakdown voltage (167V) specifications. The primary difference is reduced clamping voltage (243V vs. 268V) and increased peak pulse current capability (2.5A vs. 2.2A). This represents improved transient suppression performance within the same voltage class.

Q: What is the difference between SMBJ150E3/TR13 and SMBJ150AE3/TR13?

A: Both are Microchip Technology products in tape-and-reel packaging. SMBJ150E3/TR13 maintains the original 268V clamping voltage and 2.2A peak pulse current. SMBJ150AE3/TR13 provides 243V clamping voltage and 2.5A peak pulse current. Both operate across -65°C to 150°C temperature range.

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

A: Yes. All listed substitute parts use the DO-214AA (SMB) surface-mount package, enabling direct PCB footprint compatibility without layout modifications.

Q: Which substitute offers the best supply availability?

A: SMBJ150A (MDD) maintains the highest inventory level at 71,200 pieces. SMBJ150A-13-F (Diodes Incorporated) offers 3,782 pieces. SMBJ150AE3/TR13 (Microchip Technology) and SMBJ150A-E3/5B (Vishay) provide 708 and 670 pieces respectively.

Q: Do all substitutes maintain RoHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, matching the original part's environmental certifications.

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