CPDQR5V0H-HF Equivalent & Substitute Parts

Part Overview

The CPDQR5V0H-HF is a transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection in surface mount applications. This component features a 5V reverse standoff voltage with a 20V maximum clamping voltage and 7A peak pulse current capability in a compact 0402 (1006 Metric) package.

The CPDQR5V0H-HF is classified as obsolete. Identifying qualified substitute components is essential for design continuity, procurement planning, and long-term product support. Substitute parts must maintain electrical compatibility within the specified parameter ranges while meeting current manufacturing and compliance standards.

Substiute Parts

CPDQR5V0H-HF

Comchip TechnologyIn Stock: 3206CPDQR5V0H-HF Datasheet

Current PartRFQ

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 CPDQR5V0H-HF are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Reverse standoff voltage: 3V to 5V range
• Breakdown voltage (minimum): 5V to 5.8V range
• Clamping voltage (maximum): 16.7V to 20V range
• Peak pulse current: 7A or greater (8/20µs waveform)
• Peak pulse power: 140W or greater
• Package compatibility: 0402 (1006 Metric) or equivalent surface mount footprint
• Bidirectional channels: 1
• Type: Zener diode

Substitution Logic: Parts are grouped as direct substitutes when they maintain the core voltage protection characteristics (standoff, breakdown, and clamping voltages) within acceptable operating ranges, support equivalent or superior current handling capability, and are available in compatible surface mount packages. Variations in capacitance and package designation (0402C/SOD-923F vs. X1-DFN1006-2 vs. SOD-882) are acceptable provided the physical footprint remains compatible with 0402 (1006 Metric) land patterns.

Parameter Comparison

Engineering Selection Recommendations

DESDALC5LP-7B (Diodes Incorporated) — Primary Substitute

This part is the recommended first choice for direct replacement. It maintains the 0402 (1006 Metric) package footprint, delivers superior peak pulse current (9A vs. 7A), and provides equivalent peak pulse power (150W vs. 140W). The 3V reverse standoff voltage and 5.8V breakdown voltage fall within acceptable protection ranges. The component is in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

ESDALC5-1BM2 (STMicroelectronics) — Voltage-Matched Substitute

This part matches the 5V reverse standoff voltage of the original component and maintains equivalent peak pulse power (150W). It is part of the ESDA/TRANSIL™ series with active product status and ROHS3 compliance. The SOD-882 package requires PCB layout verification for footprint compatibility with 0402 (1006 Metric) land patterns. Clamping voltage and peak pulse current specifications are not provided; electrical characterization is necessary before design implementation.

ESDALCL5-1BM2 (STMicroelectronics) — Lower Voltage Substitute

This part operates at 3V reverse standoff voltage with a 5V minimum breakdown voltage. It is suitable for applications where lower voltage protection thresholds are acceptable. Peak pulse power is equivalent (150W). The SOD-882 package requires footprint compatibility assessment. Clamping voltage and peak pulse current data are not provided.

ESDAVLC8-1BM2 (STMicroelectronics) — Limited Compatibility

This part features a 3V reverse standoff voltage and 8.5V minimum breakdown voltage. Peak pulse power is significantly reduced (30W vs. 140W), making it unsuitable for high-energy transient suppression applications. The SOD-882 package and reduced capacitance (4.5pF) may be beneficial for high-frequency circuits but do not meet the power handling requirements of the original specification. This part is not recommended as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can DESDALC5LP-7B be used as a direct replacement for CPDQR5V0H-HF?

A: Yes. DESDALC5LP-7B maintains the 0402 (1006 Metric) package footprint, meets or exceeds the electrical performance specifications (9A peak pulse current, 150W peak pulse power, 16.7V clamping voltage), and is in active production with current compliance certifications. No design modifications are required.

Q: What is the difference between the 0402 (1006 Metric) and SOD-882 packages?

A: The 0402 (1006 Metric) is a rectangular chip package measuring 1.0mm × 0.6mm. SOD-882 is a smaller outline diode package. While both are surface mount components, their physical dimensions and land pattern footprints differ. PCB layout compatibility must be verified before substituting parts with different package designations.

Q: Why are clamping voltage and peak pulse current not specified for some substitute parts?

A: Manufacturers may not publish all electrical parameters in standard datasheets. When critical specifications are not provided, the component datasheet must be consulted directly, or electrical characterization testing must be performed to confirm suitability for the application.

Q: Is ESDAVLC8-1BM2 suitable for this application?

A: No. The 30W peak pulse power rating is insufficient for applications requiring 140W or greater transient energy dissipation. This part is designed for lower-power protection circuits and does not meet the original specification requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed (DESDALC5LP-7B, ESDALC5-1BM2, ESDALCL5-1BM2, and ESDAVLC8-1BM2) are ROHS3 compliant. The original CPDQR5V0H-HF RoHS status is not specified in the provided data.

Q: What is the operating temperature range for substitute parts?

A: DESDALC5LP-7B operates from -65°C to 150°C (TJ). STMicroelectronics parts (ESDALC5-1BM2, ESDALCL5-1BM2, ESDAVLC8-1BM2) operate from -55°C to 150°C (TJ). Verify that the selected substitute meets the thermal requirements of your application.