MASMLJ170CA Equivalent & Substitute Parts

Part Overview

The MASMLJ170CA is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, classified as a Zener-type bidirectional device in the DO-214AB surface mount package. This component is designed for general-purpose transient voltage suppression applications, offering a 170V reverse standoff voltage with a 275V maximum clamping voltage at peak pulse current. The part maintains active product status with military-grade qualification under MIL-PRF-19500. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Substiute Parts

MASMLJ170CA

Microchip TechnologyIn Stock: 872MASMLJ170CA Datasheet

Current PartRFQ

MSMLJ170CA

Microchip TechnologyIn Stock: 997MSMLJ170CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MASMLJ170CA are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is governed by the following key parameters:

• Voltage - Reverse Standoff (Typ): 170V
• Voltage - Breakdown (Min): 189V
• Voltage - Clamping (Max) @ Ipp: 275V
• Current - Peak Pulse (10/1000µs): 11A
• Power - Peak Pulse: 3000W
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Operating Temperature Range: -65°C to 150°C (TJ)
• Grade: Military
• Qualification: MIL-PRF-19500

A part qualifies as a direct substitute only when all electrical parameters, package specifications, mounting type, temperature range, and military qualification are identical. No parameter deviation is permitted for substitution classification.

Parameter Comparison

Engineering Selection Recommendations

The MSMLJ170CA is a direct equivalent substitute for the MASMLJ170CA. Both parts are manufactured by Microchip Technology and share identical electrical specifications, package configuration, and military-grade qualification under MIL-PRF-19500. Selection between these parts is based on procurement availability and inventory status rather than technical differentiation.

Both parts maintain active product status and are suitable for applications requiring military-grade transient voltage suppression in the 170V reverse standoff class. The identical operating temperature range (-65°C to 150°C TJ), peak pulse power rating (3000W), and DO-214AB surface mount package ensure functional and mechanical interchangeability in circuit designs.

RoHS non-compliance status is consistent across both parts and must be evaluated against application and regulatory requirements. Moisture sensitivity level MSL 1 (Unlimited) indicates no special moisture handling precautions are required during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can MSMLJ170CA be used as a direct replacement for MASMLJ170CA?

A: Yes. The MSMLJ170CA is a direct equivalent substitute. All electrical parameters, package specifications, operating temperature range, and military qualifications are identical between the two parts.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by exact matching of: reverse standoff voltage (170V), breakdown voltage (189V minimum), clamping voltage (275V maximum), peak pulse current (11A), peak pulse power (3000W), operating temperature range (-65°C to 150°C TJ), package type (DO-214AB, SMC), mounting type (surface mount), and military qualification (MIL-PRF-19500).

Q: Are there any differences in package or mounting between MASMLJ170CA and MSMLJ170CA?

A: No. Both parts use the DO-214AB surface mount package (SMC designation) with identical mechanical and electrical interface specifications.

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

A: MIL-PRF-19500 qualification indicates the part meets military performance standards for semiconductor devices. This qualification is maintained across both the main part and substitute, ensuring compliance with military-grade application requirements.

Q: Does RoHS non-compliance affect substitution?

A: RoHS compliance status is identical for both parts (RoHS non-compliant). Substitution does not introduce any change in RoHS status. Applications requiring RoHS-compliant components must evaluate both parts against regulatory requirements independently.

Q: What is the Moisture Sensitivity Level (MSL) and why is it relevant?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Special moisture-controlled storage or handling procedures are not required for either part during manufacturing or assembly processes.

Q: Can these parts be used interchangeably in existing circuit designs?

A: Yes. Identical electrical specifications, package configuration, and operating temperature range ensure functional and mechanical interchangeability. No circuit redesign or component layout modification is required when substituting between MASMLJ170CA and MSMLJ170CA.