MASMBJ16AE3 Equivalent & Substitute Parts

Part Overview

The MASMBJ16AE3 is a unidirectional Zener 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 23.1A peak pulse current capability in a DO-214AA (SMB) package. The part is currently active in production with military-grade qualification per MIL-PRF-19500. Identification of equivalent and substitute parts is necessary to address supply chain continuity, inventory optimization, and design flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

MASMBJ16AE3

Microchip TechnologyIn Stock: 1151MASMBJ16AE3 Datasheet

Current PartRFQ

SMBJ16A-13

Diodes IncorporatedIn Stock: 838SMBJ16A-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MASMBJ16AE3 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• 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 Channels: 1

Mechanical Equivalence Criteria:

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

Application Compatibility:

• General Purpose overvoltage protection

Parts meeting all electrical parameters and mechanical package specifications are classified as direct substitutes. Variations in operating temperature range, product status, or manufacturer do not preclude substitution provided all electrical and package parameters remain within specification.

Parameter Comparison

*Operating temperature range: SMBJ16A-13 specifies -55°C minimum versus -65°C for MASMBJ16AE3. Upper limit (150°C) is identical.

Engineering Selection Recommendations

MASMBJ16AE3 (Primary Component): The MASMBJ16AE3 remains the preferred selection for new designs and ongoing production. This part is currently active in production status with military-grade qualification per MIL-PRF-19500, ensuring compliance with stringent reliability and quality standards. Inventory availability is robust at 1,068 pieces in stock.

SMBJ16A-13 (Diodes Incorporated) - Substitute: The SMBJ16A-13 provides electrical and mechanical equivalence across all critical parameters. However, this part is discontinued at DiGi Electronics and carries a narrower operating temperature range (-55°C to 150°C versus -65°C to 150°C). The SMBJ16A-13 lacks specified military qualification. This substitute is suitable for applications where the lower temperature limit of -55°C is acceptable and military qualification is not required. Use of this substitute should be evaluated against specific application temperature requirements and compliance mandates.

Compliance Considerations: Both parts are RoHS non-compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (unlimited) for both components.

Frequently Asked Questions (FAQ)

Q: Can SMBJ16A-13 be used as a direct replacement for MASMBJ16AE3 in all applications?

A: The SMBJ16A-13 provides electrical and mechanical equivalence for general-purpose overvoltage protection. However, applications requiring operation below -55°C or military-grade qualification per MIL-PRF-19500 must use the MASMBJ16AE3. Verify application temperature requirements before substitution.

Q: What is the significance of the DO-214AA (SMB) package designation?

A: DO-214AA and SMB are equivalent designations for the same surface-mount package. Both the MASMBJ16AE3 and SMBJ16A-13 use this standardized package, ensuring mechanical and thermal compatibility on printed circuit boards without layout modifications.

Q: Why does SMBJ16A-13 have a different minimum operating temperature?

A: The SMBJ16A-13 specifies a -55°C minimum junction temperature versus -65°C for the MASMBJ16AE3. This difference reflects manufacturer design specifications and does not affect substitution in applications operating above -55°C. Applications requiring operation at -65°C must use the MASMBJ16AE3.

Q: Are there differences in electrical performance between these parts?

A: No. Both parts are electrically equivalent across all specified parameters: 16V reverse standoff voltage, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, 23.1A peak pulse current, and 600W peak pulse power.

Q: What is the impact of SMBJ16A-13 being discontinued?

A: Discontinuation at DiGi Electronics indicates limited future availability. For long-term supply chain stability, the MASMBJ16AE3 is the recommended choice. The SMBJ16A-13 may be available through alternative distributors but should not be selected for new designs requiring sustained production support.

Q: Does military qualification affect electrical performance?

A: Military qualification per MIL-PRF-19500 certifies manufacturing quality, reliability testing, and traceability standards. It does not alter electrical performance specifications. However, applications subject to military or aerospace requirements must use qualified components.