CPDQR3-5V0UP Equivalent & Substitute Parts

Part Overview

The CPDQR3-5V0UP is a Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This steering-type, unidirectional TVS diode features a 5V reverse standoff voltage with a 12.5V maximum clamping voltage and 2A peak pulse current rating in a compact 0402 surface mount package.

The product status is listed as Obsolete, making it necessary to identify equivalent and substitute parts for new designs or component replenishment. Substitute parts must maintain compatibility with the electrical protection requirements and physical mounting constraints of the original application.

Substiute Parts

CPDQR3-5V0UP

Comchip TechnologyIn Stock: 12244CPDQR3-5V0UP Datasheet

Current PartRFQ

DLPT05-7-F

Diodes IncorporatedIn Stock: 30524DLPT05-7-F Datasheet

MFR RecommendedRFQ

PESD5V0X2UAMBYL

Nexperia USA Inc.In Stock: 10623PESD5V0X2UAMBYL Datasheet

MFR RecommendedRFQ

PESD5V0X2UAMYL

Nexperia USA Inc.In Stock: 10338PESD5V0X2UAMYL Datasheet

MFR RecommendedRFQ

PESD5V0X2UMBYL

Nexperia USA Inc.In Stock: 20832PESD5V0X2UMBYL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPDQR3-5V0UP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff: 5V nominal
• Voltage - Breakdown (Min): 6V or higher
• Voltage - Clamping (Max): Must not exceed application tolerance (reference: 12.5V)
• Current - Peak Pulse (8/20µs): Minimum 2A capability
• Unidirectional Channels: 1 channel (steering configuration)
• Mounting Type: Surface Mount
• Operating Temperature Range: Must encompass -55°C to 125°C minimum

Identified Substitute Parts:

The DLPT05-7-F (Diodes Incorporated) qualifies as a direct functional substitute with enhanced electrical performance characteristics while maintaining the same voltage protection window and unidirectional steering topology.

The PESD5V0X2UMBYL, PESD5V0X2UAMBYL, and PESD5V0X2UAMYL (Nexperia USA Inc.) represent alternative substitutes with different package configurations (SOT-883 vs. 0402) and modified electrical specifications. These parts maintain the 5V reverse standoff voltage and 7.5V minimum breakdown voltage but feature different clamping voltages and current ratings.

Parameter Comparison

Engineering Selection Recommendations

DLPT05-7-F (Diodes Incorporated) is the primary recommended substitute for the CPDQR3-5V0UP. This part maintains the same 5V reverse standoff voltage and 6V minimum breakdown voltage, ensuring equivalent protection thresholds. The DLPT05-7-F offers superior electrical performance with 17A peak pulse current capability and 300W peak pulse power rating, providing enhanced margin for transient suppression. The part carries Last Time Buy status with ROHS3 compliance and is available in SOT-23-3 package configuration. The extended operating temperature range (-55 to 150°C) exceeds the original specification.

PESD5V0X2UMBYL, PESD5V0X2UAMBYL, and PESD5V0X2UAMYL (Nexperia USA Inc.) are alternative substitutes with Active product status and automotive-grade qualification (AEC-Q101). These parts maintain the 5V reverse standoff voltage but feature higher minimum breakdown voltage (7.5V) and increased clamping voltage (14V). The Nexperia parts are available in SOT-883 package with ROHS3 compliance. Selection among these three Nexperia variants depends on current handling requirements: PESD5V0X2UMBYL (1.5A), PESD5V0X2UAMBYL (2.5A), or PESD5V0X2UAMYL (2.5A).

Package compatibility must be evaluated during design migration. The original 0402 package differs from SOT-23-3 and SOT-883 alternatives, requiring PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can DLPT05-7-F directly replace CPDQR3-5V0UP without circuit modifications?

A: DLPT05-7-F maintains the same voltage protection window (5V standoff, 6V breakdown) and unidirectional steering topology, making it electrically compatible. However, the package change from 0402 to SOT-23-3 requires PCB layout redesign. The superior current rating (17A vs. 2A) and lower clamping voltage (9.8V vs. 12.5V) provide improved performance margins.

Q: What is the difference between the three Nexperia substitute parts?

A: PESD5V0X2UMBYL, PESD5V0X2UAMBYL, and PESD5V0X2UAMYL differ primarily in peak pulse current rating: 1.5A, 2.5A, and 2.5A respectively. All three share identical voltage specifications (5V standoff, 7.5V breakdown, 14V clamping) and SOT-883 package configuration. Selection depends on application current requirements.

Q: Why do the Nexperia parts have higher clamping voltage (14V) compared to the original (12.5V)?

A: The clamping voltage difference reflects different device design and manufacturing processes between manufacturers. Applications must verify that 14V clamping voltage remains within system tolerance limits before substitution.

Q: Are the Nexperia parts suitable for automotive applications?

A: Yes. PESD5V0X2UMBYL, PESD5V0X2UAMBYL, and PESD5V0X2UAMYL carry automotive-grade designation with AEC-Q101 qualification and extended operating temperature range (-65 to 150°C).

Q: What is the impact of package change on circuit design?

A: Package migration from 0402 to SOT-23-3 or SOT-883 requires PCB footprint redesign, trace routing modifications, and potential thermal management adjustments. Mechanical clearance and board space availability must be evaluated.

Q: Which substitute offers the best availability?

A: DLPT05-7-F (30,513 pcs) and PESD5V0X2UMBYL (20,760 pcs) offer the highest inventory levels among the substitutes listed.