CPDQC5V0-HF Equivalent & Substitute Parts

Part Overview

The CPDQC5V0-HF is a transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This bidirectional Zener diode operates at a 5V reverse standoff voltage with a 15V maximum clamping voltage and 5A peak pulse current rating. The component is actively produced, RoHS3 compliant, and available in high volume (4734 pcs in stock). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific requirements.

Substiute Parts

CPDQC5V0-HF

Comchip TechnologyIn Stock: 4792CPDQC5V0-HF Datasheet

Current PartRFQ

ACPDQC5V0-HF

Comchip TechnologyIn Stock: 1544ACPDQC5V0-HF Datasheet

DirectRFQ

DESDALC5LP-7B

Diodes IncorporatedIn Stock: 10374DESDALC5LP-7B Datasheet

MFR RecommendedRFQ

ESDALC5-1BM2

STMicroelectronicsIn Stock: 17112ESDALC5-1BM2 Datasheet

MFR RecommendedRFQ

ESDALCL5-1BM2

STMicroelectronicsIn Stock: 18005ESDALCL5-1BM2 Datasheet

MFR RecommendedRFQ

ESDAVLC8-1BM2

STMicroelectronicsIn Stock: 23256ESDAVLC8-1BM2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CPDQC5V0-HF are classified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 5V or 3V
• Voltage - Clamping (Max) @ Ipp: 15V to 16.7V range
• Current - Peak Pulse: 5A or higher
• Power - Peak Pulse: 75W or higher
• Package / Case: SOD-923, SOD-882, or 0402 (1006 Metric) form factors
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Bidirectional Channels: 1

Grouping Logic:

Group 1 - Direct Comchip Equivalent (Automotive Grade): ACPDQC5V0-HF matches the CPDQC5V0-HF in all electrical parameters and package specification, with the addition of AEC-Q101 automotive qualification and automotive-grade designation.

Group 2 - Diodes Incorporated Alternative: DESDALC5LP-7B provides higher peak pulse current (9A) and power dissipation (150W) in a mechanically compatible 0402 (1006 Metric) package, with extended operating temperature range (-65°C to 150°C).

Group 3 - STMicroelectronics ESDA Series: ESDALC5-1BM2, ESDALCL5-1BM2, and ESDAVLC8-1BM2 are SOD-882 package alternatives with 150W or 30W power ratings and extended temperature ranges (-55°C to 150°C). These parts maintain the 5V or 3V reverse standoff voltage specification with varying breakdown voltages and capacitance characteristics.

Parameter Comparison

Engineering Selection Recommendations

ACPDQC5V0-HF is the primary substitute when automotive-grade qualification (AEC-Q101) is required. This part maintains identical electrical specifications and SOD-923 package compatibility with the CPDQC5V0-HF while adding automotive-grade designation. Selection is appropriate for applications requiring automotive compliance without design modification.

DESDALC5LP-7B is suitable when higher current handling (9A) and power dissipation (150W) are beneficial, and when the 0402 (1006 Metric) package form factor is acceptable. The extended operating temperature range (-65°C to 150°C) supports applications with wider thermal requirements. The 3V reverse standoff voltage requires circuit-level verification for compatibility.

ESDALC5-1BM2 provides a 5V reverse standoff voltage match with SOD-882 package compatibility and 150W power rating. This part is appropriate when SOD-882 package footprint is available and extended temperature operation (-55°C to 150°C) is required. Clamping voltage and peak current specifications are not provided; verification against application requirements is necessary.

ESDALCL5-1BM2 and ESDAVLC8-1BM2 are suitable for applications where 3V reverse standoff voltage is acceptable and SOD-882 package compatibility exists. ESDAVLC8-1BM2 operates at lower power dissipation (30W) and lower capacitance (4.5pF), making it appropriate for high-frequency or low-power applications. Extended temperature operation (-55°C to 150°C) is supported by both parts.

All substitute parts maintain RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices.

Frequently Asked Questions (FAQ)

Q: Can ACPDQC5V0-HF be used as a direct replacement for CPDQC5V0-HF?

A: Yes. ACPDQC5V0-HF is electrically and mechanically identical to CPDQC5V0-HF with the addition of AEC-Q101 automotive qualification. No circuit or layout modifications are required. The SOD-923 package footprint is identical.

Q: What is the primary difference between CPDQC5V0-HF and DESDALC5LP-7B?

A: DESDALC5LP-7B has a 3V reverse standoff voltage (versus 5V), higher peak pulse current (9A versus 5A), higher power dissipation (150W versus 75W), and uses a 0402 (1006 Metric) package instead of SOD-923. The 3V standoff voltage requires circuit verification to ensure protection thresholds remain appropriate.

Q: Are SOD-882 package parts compatible with SOD-923 footprints?

A: No. SOD-882 and SOD-923 are different package form factors with different land patterns and pin configurations. PCB layout modifications are required to use SOD-882 alternatives. Verify footprint compatibility before design implementation.

Q: Which substitute part has the lowest capacitance?

A: ESDAVLC8-1BM2 has the lowest capacitance at 4.5pF @ 1MHz, compared to 15pF for the CPDQC5V0-HF and 26pF for other alternatives. Lower capacitance is beneficial in high-frequency applications where parasitic capacitance must be minimized.

Q: Do all substitute parts support the same operating temperature range?

A: No. The CPDQC5V0-HF and ACPDQC5V0-HF do not specify operating temperature. DESDALC5LP-7B operates from -65°C to 150°C (TJ). ESDALC5-1BM2, ESDALCL5-1BM2, and ESDAVLC8-1BM2 operate from -55°C to 150°C (TJ). Verify temperature requirements for your application.

Q: Is RoHS3 compliance maintained across all substitute parts?

A: Yes. All listed substitute parts are RoHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.