MXLSMBJ170AE3 Equivalent & Substitute Parts

Part Overview

The MXLSMBJ170AE3 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Microchip Technology. This surface mount component is designed for general-purpose transient voltage protection applications, featuring a 170V reverse standoff voltage and 275V maximum clamping voltage. The device is housed in a DO-214AA (SMB) package and is qualified to MIL-PRF-19500 military standards.

The MXLSMBJ170AE3 maintains active product status with 869 units currently in stock. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when design flexibility is required across multiple qualified suppliers.

Substiute Parts

MXLSMBJ170AE3

Microchip TechnologyIn Stock: 908MXLSMBJ170AE3 Datasheet

Current PartRFQ

SMBJ170A-13

Diodes IncorporatedIn Stock: 969SMBJ170A-13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MXLSMBJ170AE3 are qualified based on electrical and mechanical parameter equivalence within the transient voltage suppressor category. The following parameters establish substitution eligibility:

Critical Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 170V
• Voltage - Breakdown (Min): 189V
• Voltage - Clamping (Max) @ Ipp: 275V
• Current - Peak Pulse (10/1000µs): 2.2A
• Power - Peak Pulse: 600W

Critical Mechanical Parameters:

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

Compliance Parameters:

• RoHS Status: RoHS non-compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Substitute parts must match all critical electrical and mechanical parameters to ensure functional equivalence in circuit protection applications. Operating temperature range variations are noted where they differ from the primary part.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: MXLSMBJ170AE3 (Microchip Technology)

The MXLSMBJ170AE3 is the recommended selection for new designs and ongoing production. This component maintains active product status with established supply availability. The device carries MIL-PRF-19500 military qualification, providing assurance for applications requiring military-grade reliability standards. The operating temperature range of -65°C to 150°C supports extended environmental specifications.

Substitute Part: SMBJ170A-13 (Diodes Incorporated)

The SMBJ170A-13 provides electrical and mechanical equivalence to the primary part across all critical parameters. This substitute is suitable for applications where multi-source qualification is required or where Diodes Incorporated supply chain integration is preferred. However, this part is listed as discontinued at DiGi Electronics, which may impact long-term availability.

Operating Temperature Consideration:

The SMBJ170A-13 operates across a narrower temperature range (-55°C to 150°C) compared to the MXLSMBJ170AE3 (-65°C to 150°C). Applications requiring operation below -55°C must use the primary part.

Compliance Status:

Both parts maintain identical RoHS non-compliance status, MSL rating of 1 (Unlimited), and REACH unaffected status, ensuring consistent regulatory treatment across substitution.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ170A-13 be used as a direct replacement for the MXLSMBJ170AE3?

A: The SMBJ170A-13 provides electrical and mechanical equivalence for all critical parameters: 170V reverse standoff voltage, 275V clamping voltage, 2.2A peak pulse current, and 600W peak pulse power. Both devices use identical DO-214AA (SMB) surface mount packaging. The substitute is functionally equivalent for applications operating within the -55°C to 150°C temperature range.

Q: What is the difference in operating temperature range between these parts?

A: The MXLSMBJ170AE3 operates from -65°C to 150°C, while the SMBJ170A-13 operates from -55°C to 150°C. The primary part supports 10°C lower minimum temperature operation. Applications requiring operation below -55°C must specify the MXLSMBJ170AE3.

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

A: Both parts use identical DO-214AA (SMB) surface mount packages. No PCB layout modifications or requalification is required when substituting between these components.

Q: What is the significance of the MIL-PRF-19500 qualification on the MXLSMBJ170AE3?

A: MIL-PRF-19500 qualification indicates the MXLSMBJ170AE3 meets military performance standards for semiconductor devices. This qualification is specific to the Microchip part and is not listed for the Diodes Incorporated substitute. Applications requiring military qualification must use the primary part.

Q: Why is the SMBJ170A-13 listed as discontinued?

A: The SMBJ170A-13 is discontinued at DiGi Electronics, indicating this distributor no longer actively stocks this component. Availability through alternative distributors or direct manufacturer channels may vary. For new designs, the active MXLSMBJ170AE3 is the recommended selection.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical voltage ratings (170V reverse standoff, 189V breakdown minimum, 275V clamping maximum), current ratings (2.2A peak pulse), and power ratings (600W peak pulse). Electrical performance is equivalent across all specified parameters.

Q: What compliance certifications apply to both parts?

A: Both parts maintain RoHS non-compliant status, MSL rating of 1 (Unlimited), and REACH unaffected status. Regulatory treatment is identical between the primary and substitute parts.