CPDQR5V0C-HF Equivalent & Substitute Parts

Part Overview

The CPDQR5V0C-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 with a 5V reverse standoff voltage and provides clamping at 14.5V maximum, with a peak pulse current rating of 4A (8/20µs). The component is packaged in 0402 (1006 Metric) form factor and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or design optimization needs.

Substiute Parts

CPDQR5V0C-HF

Comchip TechnologyIn Stock: 524778CPDQR5V0C-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

Substitution of the CPDQR5V0C-HF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Reverse standoff voltage within the 3V to 5V range
• Breakdown voltage (minimum) between 5.8V and 6.1V
• Clamping voltage (maximum) not exceeding 16.7V
• Peak pulse current rating of 4A or greater (8/20µs)
• Surface-mount packaging in 0402 (1006 Metric) or equivalent form factor (SOD-882, DFN1006-2)
• Bidirectional channel configuration (1 channel)
• General-purpose application classification
• ROHS3 compliance and MSL 1 rating

Substitute Parts Identified:

1. DESDALC5LP-7B (Diodes Incorporated) — Primary substitute with enhanced current rating (9A) and higher clamping voltage (16.7V)
2. ESDALC5-1BM2 (STMicroelectronics) — Matched reverse standoff voltage (5V) with SOD-882 package
3. ESDALCL5-1BM2 (STMicroelectronics) — Lower reverse standoff voltage (3V) with SOD-882 package
4. ESDAVLC8-1BM2 (STMicroelectronics) — Lower reverse standoff voltage (3V) with reduced power rating (30W) and SOD-882 package

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and ROHS3 compliance with MSL 1 rating, ensuring regulatory and environmental compatibility with the original CPDQR5V0C-HF.

DESDALC5LP-7B provides the closest mechanical compatibility, retaining the 0402 (1006 Metric) package form factor while offering enhanced electrical performance with 9A peak pulse current and 150W power dissipation. This part is suitable for applications requiring higher transient energy absorption.

ESDALC5-1BM2 matches the 5V reverse standoff voltage specification of the original part and maintains equivalent electrical characteristics. The SOD-882 package requires PCB layout modification but provides identical functional performance with 150W power rating.

ESDALCL5-1BM2 operates at 3V reverse standoff voltage with SOD-882 packaging. Selection of this part is appropriate only when circuit design permits lower standoff voltage operation.

ESDAVLC8-1BM2 features the lowest power dissipation rating (30W) and highest breakdown voltage (8.5V minimum). This part is suitable for low-energy transient suppression applications with 3V standoff voltage requirement and SOD-882 packaging.

Frequently Asked Questions (FAQ)

Q: Can DESDALC5LP-7B directly replace CPDQR5V0C-HF without PCB modification?

A: Yes. DESDALC5LP-7B maintains the same 0402 (1006 Metric) package footprint and pinout configuration, allowing direct PCB substitution without layout changes.

Q: What is the primary difference between ESDALC5-1BM2 and ESDALCL5-1BM2?

A: ESDALC5-1BM2 operates at 5V reverse standoff voltage matching the original CPDQR5V0C-HF specification, while ESDALCL5-1BM2 operates at 3V reverse standoff voltage. Both use SOD-882 packaging and require PCB layout modification.

Q: Are SOD-882 packaged parts (ESDALC5-1BM2, ESDALCL5-1BM2, ESDAVLC8-1BM2) compatible with 0402 footprints?

A: No. SOD-882 and 0402 (1006 Metric) are distinct package form factors with different footprint dimensions and pinout configurations. PCB redesign is required for SOD-882 substitution.

Q: Which substitute part has the lowest capacitance at 1MHz?

A: ESDAVLC8-1BM2 has the lowest capacitance at 4.5pF @ 1MHz, compared to 25-26pF for other parts. This characteristic is relevant for high-frequency signal integrity applications.

Q: Do all substitute parts meet the same compliance standards as CPDQR5V0C-HF?

A: Yes. All identified substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating and maintain active product status, ensuring equivalent regulatory and environmental compliance.

Q: What is the peak pulse current difference between CPDQR5V0C-HF and DESDALC5LP-7B?

A: CPDQR5V0C-HF is rated at 4A (8/20µs) peak pulse current, while DESDALC5LP-7B is rated at 9A (8/20µs). The higher rating in DESDALC5LP-7B provides greater transient suppression capability.