MASMLJ15CA Equivalent & Substitute Parts

Part Overview

The MASMLJ15CA 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 requiring a 15V reverse standoff voltage with 24.4V maximum clamping voltage at peak pulse current. The part maintains active product status with military-grade qualification per MIL-PRF-19500. 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

MASMLJ15CA

Microchip TechnologyIn Stock: 1203MASMLJ15CA Datasheet

Current PartRFQ

MSMLJ15CA

Microchip TechnologyIn Stock: 1244MSMLJ15CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MASMLJ15CA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 24.4V
• Current - Peak Pulse (10/1000µs): 123A
• Power - Peak Pulse: 3000W
• Operating Temperature Range: -65°C to 150°C (TJ)

Mechanical Parameters (Must Match):

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

Device Classification (Must Match):

• Type: Zener
• Category: Transient Voltage Suppressors (TVS)
• Grade: Military
• Qualification: MIL-PRF-19500

The MSMLJ15CA meets all specified criteria and is classified as a direct equivalent substitute for the MASMLJ15CA.

Parameter Comparison

Engineering Selection Recommendations

The MSMLJ15CA is a direct equivalent substitute for the MASMLJ15CA. Both components are manufactured by Microchip Technology and share identical electrical specifications, mechanical packaging, and military-grade qualifications. Selection between these parts is based on availability and inventory status rather than technical differentiation.

Both parts maintain active product status and comply with MIL-PRF-19500 military qualification standards. Both are classified as RoHS non-compliant and carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

The DO-214AB surface mount package ensures compatibility with standard PCB assembly processes. The 15V reverse standoff voltage with 24.4V maximum clamping voltage and 123A peak pulse current rating establish the functional envelope for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can MSMLJ15CA be used as a direct replacement for MASMLJ15CA in existing designs?

A: Yes. The MSMLJ15CA is a direct equivalent substitute with identical electrical parameters, mechanical packaging, and military-grade qualifications. No design modifications are required.

Q: Are there any differences in the DO-214AB package between these parts?

A: No. Both parts use the identical DO-214AB surface mount package (SMC designation). PCB footprints, solder pad layouts, and assembly processes are identical.

Q: Do both parts meet the same military qualification standards?

A: Yes. Both MASMLJ15CA and MSMLJ15CA are qualified to MIL-PRF-19500 and carry military-grade classification.

Q: What is the significance of the 15V reverse standoff voltage specification?

A: The 15V reverse standoff voltage defines the maximum continuous reverse voltage the device can sustain without conducting. This parameter establishes the circuit protection threshold and must match the application requirements.

Q: What does the 24.4V clamping voltage at peak pulse current indicate?

A: The 24.4V clamping voltage represents the maximum voltage across the device when conducting 123A peak pulse current during a transient event. This parameter determines the maximum voltage spike that reaches the protected circuit.

Q: Are these parts suitable for power line protection applications?

A: No. Both parts are specified for general-purpose transient voltage suppression and are not rated for power line protection applications.

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

A: Both parts operate across a junction temperature range of -65°C to 150°C (TJ), supporting applications in industrial and military environments.

Q: Do these parts have moisture sensitivity concerns?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during standard storage and handling procedures.

Q: Are there any RoHS compliance considerations?

A: Both parts are RoHS non-compliant. Applications requiring RoHS-compliant components must identify alternative part numbers from the manufacturer's product portfolio.