MXLSMBJ85CAE3 Equivalent & Substitute Parts

Part Overview

The MXLSMBJ85CAE3 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This surface mount component operates with a reverse standoff voltage of 85V, a clamping voltage of 137V at peak pulse current, and a peak pulse power rating of 600W. The device is housed in a DO-214AA (SMB) package and is qualified to MIL-PRF-19500 military standards. The part maintains active product status with 1081 units in current inventory. Identification of equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing when the primary component becomes unavailable or when design requirements necessitate component alternatives with compatible electrical and mechanical specifications.

Substiute Parts

MXLSMBJ85CAE3

Microchip TechnologyIn Stock: 1115MXLSMBJ85CAE3 Datasheet

Current PartRFQ

SMBJ85CA-13

Diodes IncorporatedIn Stock: 4330SMBJ85CA-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MXLSMBJ85CAE3 is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Breakdown (Min): 94.4V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 4.4A
• Power - Peak Pulse: 600W

Mechanical Parameters:

• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

Substitute parts must match all electrical parameters exactly and maintain mechanical compatibility through identical or functionally equivalent packaging. Operating temperature range variations are noted but do not preclude substitution when the application temperature envelope is within the substitute part's rated range.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ85CA-13 manufactured by Diodes Incorporated is electrically and mechanically equivalent to the MXLSMBJ85CAE3. All critical electrical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and peak pulse power—are identical. Package and mounting specifications are equivalent.

Product Status Consideration: The SMBJ85CA-13 is listed as discontinued at DiGi Electronics. This status indicates reduced availability through standard distribution channels. The MXLSMBJ85CAE3 maintains active product status with 1081 units in current inventory, providing superior supply chain continuity.

Compliance and Qualification: The MXLSMBJ85CAE3 carries MIL-PRF-19500 military qualification, whereas the SMBJ85CA-13 qualification status is not specified in the provided parameters. Both parts are RoHS non-compliant and REACH unaffected.

Temperature Range: The MXLSMBJ85CAE3 operates across -65°C to 150°C, while the SMBJ85CA-13 operates across -55°C to 150°C. Applications requiring operation below -55°C require the MXLSMBJ85CAE3.

For new designs and applications without specific military qualification requirements, either part is suitable when operating temperature remains within -55°C to 150°C. For applications requiring extended low-temperature operation or military-grade qualification, the MXLSMBJ85CAE3 is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ85CA-13 be used as a direct replacement for the MXLSMBJ85CAE3 in all applications?

A: The SMBJ85CA-13 is electrically and mechanically equivalent for applications operating within the temperature range of -55°C to 150°C. Applications requiring operation below -55°C or military qualification must use the MXLSMBJ85CAE3.

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

A: DO-214AA and SMB are equivalent designations for the same surface mount package. Both parts use this identical package, ensuring mechanical compatibility in PCB layouts and reflow soldering processes.

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

A: No. Both parts exhibit identical electrical specifications: 85V reverse standoff voltage, 94.4V minimum breakdown voltage, 137V maximum clamping voltage, 4.4A peak pulse current, and 600W peak pulse power.

Q: What does the discontinued status of the SMBJ85CA-13 mean for component sourcing?

A: Discontinued status indicates that DiGi Electronics no longer actively stocks this part. Availability through other distributors may vary. The MXLSMBJ85CAE3 maintains active status with confirmed inventory, making it the preferred choice for new procurement.

Q: Are moisture sensitivity levels identical between these parts?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

Q: Does the military qualification of the MXLSMBJ85CAE3 affect its use in commercial applications?

A: Military qualification does not restrict use in commercial applications. MIL-PRF-19500 qualification indicates the part meets or exceeds military performance standards and is suitable for any application requiring those performance levels.