SMBJ26A-HR Equivalent & Substitute Parts

Part Overview

The SMBJ26A-HR is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 26V reverse standoff voltage and provides 42.1V maximum clamping voltage at peak pulse current of 14.3A. The part is Active status and ROHS3 compliant, making it suitable for modern electronic circuit protection requirements. Substitute parts are identified to address inventory availability, packaging preferences, or manufacturer sourcing flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

SMBJ26A-HR

Littelfuse Inc.In Stock: 937SMBJ26A-HR Datasheet

Current PartRFQ

SMBJ26A

EVVO SemiIn Stock: 39808SMBJ26A Datasheet

DirectRFQ

SMBJ26A

EVVO SemiIn Stock: 39808SMBJ26A Datasheet

DirectRFQ

SMBJ26A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2013SMBJ26A-E3/52 Datasheet

DirectRFQ

SMBJ26A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 4239SMBJ26A-E3/5B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ26A-HR are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Breakdown (Min): 28.9V
• Voltage - Clamping (Max) @ Ipp: 42.1V
• Current - Peak Pulse (10/1000µs): 14.3A
• Power - Peak Pulse: 600W
• Type: Zener
• Unidirectional Channels: 1
• Applications: General Purpose

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package / Case: DO-214AA, SMB or equivalent surface-mount packages
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Identified Substitutes:

1. SMBJ26A (EVVO Semi) — Identical electrical specifications; package variant SMA (DO-214AC) provides mechanical compatibility with surface-mount assembly processes.

2. SMBJ26A-E3/52 (Vishay General Semiconductor - Diodes Division) — Identical electrical specifications; DO-214AA package matches primary part; operating temperature range -55°C to 150°C (subset of main part range); TransZorb® series designation.

3. SMBJ26A-E3/5B (Vishay General Semiconductor - Diodes Division) — Identical electrical specifications; DO-214AA package matches primary part; operating temperature range -55°C to 150°C (subset of main part range); TransZorb® series designation.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, meeting regulatory requirements for current production environments.

SMBJ26A (EVVO Semi): Provides identical electrical performance with SMA package variant (DO-214AC). Suitable for applications where packaging flexibility is acceptable and high inventory availability (39,700 pcs) is advantageous.

SMBJ26A-E3/52 (Vishay General Semiconductor - Diodes Division): Maintains DO-214AA package compatibility with the primary part. Operating temperature range of -55°C to 150°C covers standard industrial applications. TransZorb® series designation indicates Vishay's established TVS product line. Inventory availability: 2,000 pcs.

SMBJ26A-E3/5B (Vishay General Semiconductor - Diodes Division): Maintains DO-214AA package compatibility with the primary part. Operating temperature range of -55°C to 150°C covers standard industrial applications. TransZorb® series designation indicates Vishay's established TVS product line. Inventory availability: 4,203 pcs.

Selection between substitutes depends on packaging requirements, temperature operating range constraints, and inventory availability. All parts satisfy the electrical protection specifications for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ26A (EVVO Semi) be used as a direct replacement for SMBJ26A-HR?

A: SMBJ26A provides identical electrical specifications (26V standoff, 42.1V clamping, 14.3A peak pulse current, 600W peak power). The primary difference is the package variant: SMA (DO-214AC) versus SMB (DO-214AA). Both are surface-mount packages with compatible footprints for standard PCB assembly. Verify PCB layout compatibility before substitution.

Q: What is the difference between the Littelfuse SMBJ26A-HR and Vishay SMBJ26A-E3/52?

A: Both parts share identical electrical specifications and DO-214AA package designation. The operating temperature range differs: Littelfuse operates -65°C to 150°C, while Vishay operates -55°C to 150°C. For applications requiring operation below -55°C, the Littelfuse part is required. For standard industrial temperature ranges, both are equivalent.

Q: Are the Vishay SMBJ26A-E3/52 and SMBJ26A-E3/5B interchangeable?

A: Yes. Both parts are manufactured by Vishay General Semiconductor - Diodes Division with identical electrical specifications, DO-214AA package, and operating temperature range (-55°C to 150°C). The suffix designations (-E3/52 and -E3/5B) represent different packaging or distribution configurations but do not affect electrical performance or mechanical compatibility.

Q: What does the DO-214AA package designation mean?

A: DO-214AA is a surface-mount package standard for small signal diodes and TVS devices, commonly referred to as SMB. It provides a compact form factor suitable for high-density PCB layouts. The SMBJ26A (EVVO Semi) uses DO-214AC (SMA package), which is a slightly smaller variant but maintains surface-mount compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (SMBJ26A from EVVO Semi, SMBJ26A-E3/52 and SMBJ26A-E3/5B from Vishay) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the primary SMBJ26A-HR specification.

Q: Which substitute part should I select for maximum temperature range coverage?

A: The primary part SMBJ26A-HR (Littelfuse) operates from -65°C to 150°C. Both Vishay substitutes (SMBJ26A-E3/52 and SMBJ26A-E3/5B) operate from -55°C to 150°C. If your application requires operation below -55°C, the Littelfuse part is necessary. For standard industrial applications, all parts are suitable.