SMBJ11A-M3/5B Equivalent & Substitute Parts

Part Overview

The SMBJ11A-M3/5B is an 11V Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional Zener diode is designed for general-purpose transient voltage suppression in surface-mount applications. The part operates across a temperature range of -55°C to 150°C and is housed in a DO-214AA (SMB) package. With an active product status and ROHS3 compliance, this component is suitable for ongoing design implementations and production deployments.

Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the TVS diode category.

Substiute Parts

SMBJ11A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 895SMBJ11A-M3/5B Datasheet

Current PartRFQ

SMBJ11A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 45499SMBJ11A-E3/52 Datasheet

DirectRFQ

SMBJ11A-TP

Micro Commercial CoIn Stock: 3671SMBJ11A-TP Datasheet

DirectRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

MFR RecommendedRFQ

SMBJ11A

MeritekIn Stock: 50169SMBJ11A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ11A-M3/5B are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Breakdown (Min): 12.2V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 33A or equivalent
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA or SMB
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitutes maintain these core electrical specifications and mechanical compatibility, ensuring functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, confirming their suitability for current and future production applications. The SMBJ11A-E3/52 from Vishay is a direct equivalent with identical electrical specifications and temperature range. The SMBJ11A-TP from Micro Commercial Co offers an extended operating temperature range of -55°C to 175°C, providing additional thermal margin in high-temperature environments. The SMBJ11A from Meritek delivers equivalent performance with a peak pulse current specification of 32.97A, which remains within functional tolerance of the 33A specification.

Selection among these substitutes depends on supply chain availability, inventory levels, and specific application temperature requirements. All parts carry MSL 1 rating, indicating unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Can SMBJ11A-E3/52 be used as a direct replacement for SMBJ11A-M3/5B?

A: Yes. Both parts are manufactured by Vishay and share identical electrical specifications: 11V reverse standoff voltage, 12.2V minimum breakdown voltage, 18.2V maximum clamping voltage, 33A peak pulse current, and 600W peak pulse power. Both are housed in DO-214AA (SMB) packages and operate across -55°C to 150°C.

Q: What is the difference between SMBJ11A-TP and the original part?

A: The SMBJ11A-TP from Micro Commercial Co maintains all core electrical specifications but extends the operating temperature range to -55°C to 175°C, compared to -55°C to 150°C for the original. This provides additional thermal headroom for applications in elevated-temperature environments.

Q: Is the Meritek SMBJ11A compatible with the original design?

A: Yes. The Meritek SMBJ11A meets all electrical requirements with a peak pulse current of 32.97A, which is functionally equivalent to the 33A specification. All other parameters, including voltage ratings, power dissipation, package type, and compliance certifications, match the original part.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, confirming their suitability for applications requiring environmental and regulatory compliance.

Q: What is the significance of MSL 1 rating for these parts?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life under standard storage conditions. These parts do not require special moisture-control packaging or baking procedures prior to assembly, simplifying inventory management and reducing handling complexity.

Q: Can I mix manufacturers in a single production run?

A: All substitute parts are electrically and mechanically equivalent within the specified parameters. However, design validation and supply chain procedures should be followed to confirm compatibility with your specific application and manufacturing processes.