161CMQ035 Equivalent & Substitute Parts

Part Overview

The 161CMQ035 is a Schottky diode array module manufactured by Vishay General Semiconductor - Diodes Division, configured as a 1 Pair Common Cathode assembly rated for 35 V DC reverse voltage and 160 A average rectified current per diode. The device is housed in a TO-249AA chassis mount package and features fast recovery characteristics with switching speeds ≤ 500 ns at currents > 200 mA.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity and ensure supply chain availability for applications requiring Schottky diode array functionality in this voltage and current class.

Substiute Parts

161CMQ035

Vishay General Semiconductor - Diodes DivisionIn Stock: 1102161CMQ035 Datasheet

Current PartRFQ

160CMQ035

SMC Diode SolutionsIn Stock: 779160CMQ035 Datasheet

MFR RecommendedRFQ

161CMQ035

SMC Diode SolutionsIn Stock: 1061161CMQ035 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 161CMQ035 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 35 V
• Package / Case: TO-249AA
• Mounting Type: Chassis Mount
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Current Rating Consideration: The 161CMQ035 is rated for 160 A average rectified current per diode. Substitute parts in this analysis are rated for 80 A average rectified current per diode. This represents a reduced current capacity and establishes a one-directional substitution relationship: the 161CMQ035 cannot be substituted by lower-rated parts in applications requiring the full 160 A specification. However, applications designed for 80 A operation can utilize these substitute parts.

Compliance and Status: The main part is obsolete. Active substitute parts from SMC Diode Solutions provide continued availability with equivalent electrical characteristics at the 80 A rating level and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The 161CMQ035 from Vishay is obsolete. The SMC Diode Solutions 161CMQ035 provides an active equivalent with identical electrical specifications, including the full 160 A current rating and -55°C ~ 175°C operating temperature range. This part maintains ROHS3 compliance and is the primary selection for direct replacement in existing designs.

For Current-Reduced Applications: The SMC Diode Solutions 160CMQ035 is suitable for applications where the current requirement does not exceed 80 A per diode. This part operates at -55°C ~ 150°C and exhibits a forward voltage of 860 mV @ 80 A, compared to 880 mV @ 160 A for the higher-rated variants. Both SMC parts are active products with established supply availability.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. The SMC parts are REACH Affected, whereas the original Vishay part is REACH Unaffected; this distinction must be evaluated against specific regulatory requirements for the end application.

Frequently Asked Questions (FAQ)

Q: Can the 160CMQ035 (80 A) be used in place of the 161CMQ035 (160 A)?

A: The 160CMQ035 is suitable only for applications where the maximum current requirement does not exceed 80 A per diode. Direct substitution in designs requiring 160 A operation is not permissible.

Q: Are the SMC Diode Solutions parts pin-compatible with the original Vishay 161CMQ035?

A: Both substitute parts from SMC Diode Solutions use the TO-249AA package with chassis mount configuration, maintaining mechanical and electrical pin compatibility with the original Vishay part.

Q: What is the difference between the two SMC substitute parts?

A: The SMC 161CMQ035 matches the original Vishay part with 160 A current rating and -55°C ~ 175°C operating temperature. The SMC 160CMQ035 is rated for 80 A current and operates at -55°C ~ 150°C, with a forward voltage of 860 mV @ 80 A versus 880 mV @ 80 A for the 161CMQ035.

Q: Does the operating temperature range difference affect substitution?

A: The SMC 161CMQ035 maintains the full -55°C ~ 175°C range of the original part. The SMC 160CMQ035 operates at -55°C ~ 150°C. Selection depends on whether the application requires operation above 150°C.

Q: Are there any compliance differences between the original and substitute parts?

A: All parts are ROHS3 compliant with MSL 1 (Unlimited). The original Vishay part is REACH Unaffected, while both SMC parts are REACH Affected. Regulatory requirements for the end application must be evaluated.

Q: What is the significance of the 1 Pair Common Cathode configuration?

A: This configuration indicates the diode array contains two diodes sharing a common cathode terminal. This must be matched in any substitute part to ensure circuit compatibility and proper electrical operation.