MSMBJ16AE3 Equivalent & Substitute Parts

Part Overview

The MSMBJ16AE3 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 16V reverse standoff voltage with a 26V maximum clamping voltage and peak pulse current rating of 23.1A. The device is housed in a DO-214AA (SMB) package and operates across the temperature range of -65°C to 150°C. The MSMBJ16AE3 maintains active product status with MIL-PRF-19500 military qualification and is currently in stock inventory.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical parameters of alternative qualified sources. The substitute identified maintains electrical equivalence across all critical performance specifications while differing in manufacturer source and product lifecycle status.

Substiute Parts

MSMBJ16AE3

Microchip TechnologyIn Stock: 1066MSMBJ16AE3 Datasheet

Current PartRFQ

SMBJ16A-13

Diodes IncorporatedIn Stock: 838SMBJ16A-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MSMBJ16AE3 is determined by strict electrical and mechanical parameter matching. The following parameters establish the substitution criteria:

Electrical Parameters (Must Match Exactly):

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 23.1A
• Power - Peak Pulse: 600W
• Type: Zener (unidirectional)
• Unidirectional Channels: 1

Mechanical Parameters (Must Match Exactly):

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

Operating Conditions (Substitute Range Must Encompass Application Requirements):

• Operating Temperature Range: Substitute minimum must be ≤ -65°C; substitute maximum must be ≥ 150°C, or application-specific requirements must fall within substitute range

The SMBJ16A-13 from Diodes Incorporated satisfies all electrical equivalence criteria and maintains mechanical compatibility. The operating temperature range of -55°C to 150°C represents a narrower lower bound compared to the primary part; applications requiring operation below -55°C require verification against specific system requirements.

Parameter Comparison

Engineering Selection Recommendations

MSMBJ16AE3 (Primary Selection): The MSMBJ16AE3 maintains active product status with MIL-PRF-19500 military qualification. This component is recommended for applications requiring military-grade certification, extended temperature operation down to -65°C, or where supply continuity from a single qualified source is mandated. Current inventory of 978 units supports immediate procurement.

SMBJ16A-13 (Substitute Selection): The SMBJ16A-13 provides electrical and mechanical equivalence across all critical parameters. However, this part is discontinued at DiGi Electronics, indicating reduced availability through standard distribution channels. The operating temperature range of -55°C to 150°C is suitable for applications where the lower temperature bound does not fall below -55°C. This substitute is applicable only when the primary part experiences supply constraints and application temperature requirements remain within the specified range. The SMBJ16A-13 carries equivalent RoHS non-compliance and REACH unaffected status.

Selection Criteria:

• Use MSMBJ16AE3 for active production designs, military applications, or when operating temperature must reach -65°C
• Use SMBJ16A-13 only when MSMBJ16AE3 is unavailable and application temperature range permits operation within -55°C to 150°C

Frequently Asked Questions (FAQ)

Q: Can the SMBJ16A-13 be used as a direct replacement for the MSMBJ16AE3 in all applications?

A: The SMBJ16A-13 provides direct electrical and mechanical substitution for applications where the operating temperature range does not require operation below -55°C. The primary difference is the lower temperature bound: MSMBJ16AE3 operates to -65°C while SMBJ16A-13 operates to -55°C. Verify that your application's minimum operating temperature requirement falls within -55°C to 150°C before substitution.

Q: Are there any package compatibility issues between these parts?

A: No. Both the MSMBJ16AE3 and SMBJ16A-13 use identical DO-214AA (SMB) surface-mount packages. PCB footprints, solder pad layouts, and mounting procedures are identical. No PCB redesign is required for substitution.

Q: What is the significance of the product status difference?

A: The MSMBJ16AE3 maintains active product status, indicating ongoing manufacturer support and availability through distribution channels. The SMBJ16A-13 is discontinued at DiGi Electronics, meaning this part is no longer actively stocked through major distributors. Discontinued status does not affect electrical performance but may impact procurement lead times and future availability.

Q: Do these parts have different compliance certifications?

A: The MSMBJ16AE3 carries MIL-PRF-19500 military qualification; the SMBJ16A-13 does not list this certification. Both parts share equivalent RoHS non-compliance status, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Applications requiring military qualification must use the MSMBJ16AE3.

Q: What are the key electrical parameters that must match for substitution?

A: Substitution requires exact matching of: Voltage - Reverse Standoff (16V), Voltage - Breakdown (17.8V), Voltage - Clamping (26V), Current - Peak Pulse (23.1A), Power - Peak Pulse (600W), device type (Zener), and channel configuration (unidirectional, 1 channel). Both parts meet these criteria.

Q: Can I use the SMBJ16A-13 in a design that operates at -60°C?

A: No. The SMBJ16A-13 operating temperature range is -55°C to 150°C. An application requiring operation at -60°C falls outside this range. The MSMBJ16AE3, with its -65°C to 150°C range, is required for this application.