MASMLJ28CA Equivalent & Substitute Parts

Part Overview

The MASMLJ28CA 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 is currently in active production status with 638 pieces available in new original inventory.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across alternative manufacturer part numbers within the same product family.

Substiute Parts

MASMLJ28CA

Microchip TechnologyIn Stock: 671MASMLJ28CA Datasheet

Current PartRFQ

MSMLJ28CA

Microchip TechnologyIn Stock: 1074MSMLJ28CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MASMLJ28CA are identified based on strict equivalence across the following critical parameters:

Electrical Performance Criteria:

• Voltage - Reverse Standoff (Typ): 28V
• Voltage - Breakdown (Min): 31.1V
• Voltage - Clamping (Max) @ Ipp: 45.4V
• Current - Peak Pulse (10/1000µs): 66A
• Power - Peak Pulse: 3000W

Mechanical & Package Criteria:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Bidirectional Channels: 1

Compliance & Qualification Criteria:

• Grade: Military
• Qualification: MIL-PRF-19500
• Type: Zener
• Product Status: Active

Substitute parts must match all electrical parameters within the specified tolerances, maintain identical mechanical packaging and mounting characteristics, and retain military-grade qualification status. No parameter deviation is permitted for substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

MASMLJ28CA (Primary Part): The MASMLJ28CA is an active production component with military-grade qualification per MIL-PRF-19500. Current inventory availability is 638 pieces in new original condition. This part is suitable for applications requiring military-specification transient voltage suppression with confirmed supply chain status.

MSMLJ28CA (Substitute Part): The MSMLJ28CA is a direct electrical and mechanical equivalent to the MASMLJ28CA, maintaining identical performance across all critical parameters including voltage ratings, peak pulse current, clamping characteristics, and operating temperature range. Both parts share the same base product number (SMLJ28) and are manufactured by Microchip Technology under identical military-grade qualification standards. The MSMLJ28CA has higher current inventory availability at 996 pieces in new original condition. Selection between these parts is based on supply chain availability and procurement lead time requirements, as both parts are functionally interchangeable within the specified application envelope.

Both parts maintain RoHS non-compliant status and REACH Unaffected classification, consistent with military-grade component requirements.

Frequently Asked Questions (FAQ)

Q: Can MSMLJ28CA be used as a direct replacement for MASMLJ28CA?

A: Yes. The MSMLJ28CA is a direct substitute for the MASMLJ28CA. Both parts are manufactured by Microchip Technology and share identical electrical specifications, mechanical packaging, and military-grade qualification status. All critical parameters including reverse standoff voltage (28V), clamping voltage (45.4V), peak pulse current (66A), and operating temperature range (-65°C to 150°C) are equivalent.

Q: What determines substitution eligibility for these TVS diodes?

A: Substitution eligibility is determined by exact equivalence across electrical performance parameters (voltage ratings, clamping characteristics, peak pulse current, power dissipation), mechanical compatibility (DO-214AB package, surface mount configuration), and compliance certifications (military-grade status, MIL-PRF-19500 qualification). Any deviation in these parameters disqualifies a part from substitution.

Q: Are there any differences in packaging or mounting between MASMLJ28CA and MSMLJ28CA?

A: No. Both parts use identical DO-214AB surface mount packaging (SMC case style) and are mounted using the same PCB assembly processes. No design changes or layout modifications are required when substituting between these parts.

Q: What is the significance of the MIL-PRF-19500 qualification?

A: MIL-PRF-19500 qualification indicates that both parts meet military performance and reliability standards for semiconductor devices. This certification applies to both the MASMLJ28CA and MSMLJ28CA, ensuring consistent performance in military and aerospace applications.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both the MASMLJ28CA and MSMLJ28CA have Moisture Sensitivity Level (MSL) 1, classified as Unlimited. This indicates minimal moisture absorption risk and no special storage or handling requirements beyond standard component handling practices.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical RoHS non-compliant status and REACH Unaffected classification. Compliance status is consistent across both part numbers.