162CMQ030 Equivalent & Substitute Parts

Part Overview

The 162CMQ030 is a Schottky diode array module configured as 1 pair common cathode, rated for 30 V DC reverse voltage and 160 A average rectified current per diode. The device is housed in a TO-249AA chassis mount package and is classified as obsolete by Vishay General Semiconductor - Diodes Division. Due to its obsolete status and limited availability from the original manufacturer, identifying equivalent substitute components is necessary to maintain design continuity and ensure supply chain reliability for applications requiring this diode configuration and electrical performance.

Substiute Parts

162CMQ030

Vishay General Semiconductor - Diodes DivisionIn Stock: 1176162CMQ030 Datasheet

Current PartRFQ

162CMQ030

SMC Diode SolutionsIn Stock: 922162CMQ030 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 162CMQ030 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage rating: 30 V DC reverse maximum
• Package type: TO-249AA
• Mounting type: Chassis Mount
• Operating temperature range: -55°C ~ 150°C
• Speed classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitute parts must meet or exceed the 160 A requirement per diode
• Voltage - Forward (Vf): Substitute parts may vary within the specified operating conditions
• Current - Reverse Leakage: Substitute parts must not exceed the specified maximum at rated voltage

The identified substitute part maintains identical configuration, voltage rating, package, and mounting specifications while operating within the defined electrical performance envelope.

Parameter Comparison

Engineering Selection Recommendations

The SMC Diode Solutions 162CMQ030 is an active substitute for the obsolete Vishay General Semiconductor 162CMQ030. Both components share identical package, configuration, voltage rating, and thermal operating range specifications.

Product Status Consideration: The Vishay part is classified as obsolete, while the SMC Diode Solutions equivalent is actively manufactured and maintained in inventory (904 pcs available). This status difference directly supports the use of the SMC substitute for new designs and ongoing production requirements.

Compliance and Certification: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The SMC substitute is subject to REACH regulations, whereas the Vishay original is REACH unaffected. This distinction must be evaluated within the context of the end application's regulatory requirements.

Current Rating Differential: The SMC substitute is rated at 80 A average rectified current per diode, compared to the original 160 A rating. This represents a 50% reduction in current capacity. Selection of this substitute is appropriate only for applications where the actual operating current does not exceed 80 A per diode. Applications requiring the full 160 A capacity cannot use this substitute without circuit redesign or parallel device configuration.

Frequently Asked Questions (FAQ)

Q: Can the SMC Diode Solutions 162CMQ030 be used as a direct replacement for the Vishay 162CMQ030?

A: Direct replacement is possible only if the application current requirement does not exceed 80 A per diode. The SMC substitute maintains identical package, configuration, voltage rating, and thermal specifications. However, the reduced current rating (80 A vs. 160 A) must be verified against actual circuit operating conditions.

Q: What is the significance of the different current ratings between the two parts?

A: The Vishay original is rated for 160 A average rectified current per diode, while the SMC substitute is rated for 80 A. This difference directly impacts the maximum current the device can safely conduct. Applications operating at currents above 80 A per diode require the original Vishay specification or alternative circuit design approaches.

Q: Are the TO-249AA packages physically identical between manufacturers?

A: Both parts use the TO-249AA chassis mount package specification. Physical dimensions and mounting interfaces are standardized to this package designation, ensuring mechanical compatibility in the same circuit board layout and thermal management configuration.

Q: What is the impact of the REACH status difference?

A: The Vishay original is REACH unaffected, while the SMC substitute is REACH affected. This distinction indicates that the SMC part is subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. Applications subject to REACH compliance obligations must account for this regulatory status in component selection.

Q: Do both parts meet the same RoHS requirements?

A: Yes. Both the Vishay 162CMQ030 and the SMC Diode Solutions 162CMQ030 are ROHS3 compliant, indicating conformance to the Restriction of Hazardous Substances Directive requirements.

Q: What is the forward voltage difference between the two parts?

A: The Vishay original specifies 650 mV maximum forward voltage at 160 A, while the SMC substitute specifies 530 mV maximum at 80 A. The lower forward voltage in the SMC part reflects its lower current rating. Forward voltage characteristics are current-dependent and cannot be directly compared across different current levels.

Q: Are the reverse leakage specifications identical?

A: Yes. Both parts specify 5 mA maximum reverse leakage current at 30 V, indicating identical leakage performance at the rated voltage.

Q: Can multiple SMC 162CMQ030 devices be paralleled to achieve 160 A capacity?

A: Parallel configuration of Schottky diode devices requires detailed thermal and current distribution analysis beyond the scope of this substitution reference. Such configurations must be evaluated through circuit design and thermal modeling specific to the application.