MASMLJ54CA Equivalent & Substitute Parts

Part Overview

The MASMLJ54CA is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, classified as a Zener-type bidirectional TVS device in DO-214AB surface mount packaging. This component is designed for general-purpose transient voltage suppression applications requiring military-grade qualification per MIL-PRF-19500. The device operates across an industrial temperature range of -65°C to 150°C and is currently in active production status with 859 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications where the primary part number becomes unavailable or where alternative sourcing is required.

Substiute Parts

MASMLJ54CA

Microchip TechnologyIn Stock: 964MASMLJ54CA Datasheet

Current PartRFQ

MSMLJ54CA

Microchip TechnologyIn Stock: 1263MSMLJ54CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MASMLJ54CA are identified based on electrical and mechanical parameter equivalence. The substitution criteria are strictly limited to the following parameters:

• Voltage - Reverse Standoff (Typ): 54V
• Voltage - Breakdown (Min): 60V
• Voltage - Clamping (Max) @ Ipp: 87.1V
• Current - Peak Pulse (10/1000µs): 34.4A
• Power - Peak Pulse: 3000W
• Bidirectional Channels: 1
• Operating Temperature Range: -65°C to 150°C
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Type: Zener
• Grade: Military
• Qualification: MIL-PRF-19500

Parts meeting all of these criteria are classified as direct substitutes. No parameter deviation is permitted for substitute classification.

Parameter Comparison

Engineering Selection Recommendations

The MSMLJ54CA is a direct substitute for the MASMLJ54CA. Both components are manufactured by Microchip Technology and share identical electrical specifications, mechanical packaging, military-grade classification, and MIL-PRF-19500 qualification. Both parts are in active production status with confirmed inventory availability. Selection between these two part numbers may be based on procurement lead time, supplier availability, or inventory position. The MSMLJ54CA currently has 1164 units in stock compared to 859 units for the MASMLJ54CA. Both parts maintain identical compliance status with respect to RoHS non-compliance, REACH unaffected designation, and EAR99 export classification. No electrical or mechanical re-qualification is required when substituting between these part numbers.

Frequently Asked Questions (FAQ)

Q: Can MSMLJ54CA be used as a direct replacement for MASMLJ54CA in existing designs?

A: Yes. The MSMLJ54CA is a direct substitute with identical electrical parameters, including reverse standoff voltage (54V), breakdown voltage (60V minimum), clamping voltage (87.1V maximum), peak pulse current (34.4A), and peak pulse power (3000W). Both components share the same DO-214AB surface mount package, military grade classification, and MIL-PRF-19500 qualification.

Q: Are there any differences in packaging or mounting between these parts?

A: No. Both MASMLJ54CA and MSMLJ54CA use identical DO-214AB surface mount packaging with SMC case designation. Mounting footprints, solder pad layouts, and PCB assembly procedures are identical.

Q: Do both parts meet the same compliance and qualification standards?

A: Yes. Both parts are military-grade components qualified to MIL-PRF-19500. Both maintain RoHS non-compliant status, REACH unaffected designation, and EAR99 export classification. Moisture sensitivity level is 1 (Unlimited) for both parts.

Q: What is the operating temperature range for these TVS diodes?

A: Both MASMLJ54CA and MSMLJ54CA operate across a junction temperature range of -65°C to 150°C, suitable for industrial and military applications.

Q: Are there any inventory or lead time considerations when selecting between these substitutes?

A: The MSMLJ54CA currently has higher inventory availability (1164 units) compared to the MASMLJ54CA (859 units). Selection may be influenced by procurement timeline and supplier stock position.