CPDA10R5V0P-HF Equivalent & Substitute Parts

Part Overview

The CPDA10R5V0P-HF is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This device features a 5V reverse standoff voltage, 13V typical clamping voltage, and 2A peak pulse current capability in a compact 10-DFN (2.5x1) package.

The product is currently listed as obsolete. Identifying qualified substitute components ensures design continuity and maintains protection performance in applications where this device was originally specified.

Substiute Parts

CPDA10R5V0P-HF

Comchip TechnologyIn Stock: 9194CPDA10R5V0P-HF Datasheet

Current PartRFQ

SP1004U-ULC-04UTG

Littelfuse Inc.In Stock: 105388SP1004U-ULC-04UTG Datasheet

MFR RecommendedRFQ

TPD4E101DPWR

Texas InstrumentsIn Stock: 36410TPD4E101DPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPDA10R5V0P-HF is determined by the following critical parameters:

• Voltage Rating Alignment: Reverse standoff voltage and clamping voltage must match or exceed the original specification to maintain protection thresholds
• Current Handling: Peak pulse current must support the 2A (8/20µs) requirement
• Bidirectional Protection: The original device provides 4-channel bidirectional protection; substitutes must maintain this configuration
• Package Compatibility: Surface-mount 10-pin DFN packages with equivalent footprints (2.5x1.0mm) ensure PCB layout compatibility
• Compliance & Status: Active product status and ROHS3 compliance ensure long-term availability and regulatory alignment

Two qualified substitutes are identified based on these parameters:

1. SP1004U-ULC-04UTG (Littelfuse Inc.) — Unidirectional alternative with compatible voltage and current ratings
2. TPD4E101DPWR (Texas Instruments) — Bidirectional alternative with enhanced current capability

Parameter Comparison

Engineering Selection Recommendations

TPD4E101DPWR (Texas Instruments) is the preferred substitute for direct replacement:

• Maintains bidirectional 4-channel configuration matching the original CPDA10R5V0P-HF
• Identical clamping voltage specification (13V Typ) ensures equivalent transient suppression performance
• Active product status guarantees long-term availability and supply chain stability
• ROHS3 compliance and MSL 1 rating align with the original device specifications
• Enhanced peak pulse current (3A vs. 2A) provides additional margin for protection

SP1004U-ULC-04UTG (Littelfuse Inc.) is a secondary alternative:

• Maintains 4-channel configuration with compatible peak pulse current (2A)
• Unidirectional topology differs from the original bidirectional design; suitable only for applications where unidirectional protection is acceptable
• Lower clamping voltage (9.2V Typ vs. 13V Typ) results in reduced transient suppression headroom
• Active product status and ROHS3 compliance ensure regulatory and supply continuity
• Smaller capacitance (0.2pF vs. 0.25pF) may benefit high-frequency applications

Package Consideration: The TPD4E101DPWR uses a 4-X2SON (0.8x0.8) package, which is significantly smaller than the original 10-UFDFN (2.5x1). PCB layout redesign is required for this substitute. The SP1004U-ULC-04UTG maintains the 10-DFN footprint family (1004/10DFN 2.5x1.0), minimizing layout changes.

Frequently Asked Questions (FAQ)

Q: Can the SP1004U-ULC-04UTG replace the CPDA10R5V0P-HF in all applications?

A: The SP1004U-ULC-04UTG is suitable only for applications where unidirectional protection is acceptable. The original CPDA10R5V0P-HF provides bidirectional protection; the Littelfuse substitute provides unidirectional protection only. Additionally, the lower clamping voltage (9.2V vs. 13V) reduces transient suppression margin. Verify application requirements before substitution.

Q: What is the primary advantage of TPD4E101DPWR over the original CPDA10R5V0P-HF?

A: The TPD4E101DPWR maintains bidirectional protection and identical clamping voltage while offering higher peak pulse current (3A vs. 2A), providing additional protection margin. Its active product status ensures long-term availability, addressing the obsolescence of the original device.

Q: Does the TPD4E101DPWR package change affect PCB design?

A: Yes. The TPD4E101DPWR uses a 4-X2SON (0.8x0.8) package, which is smaller than the original 10-UFDFN (2.5x1). PCB layout modifications are required, including footprint redesign and trace routing adjustments. The SP1004U-ULC-04UTG maintains the 10-DFN footprint family, requiring minimal layout changes.

Q: Are both substitutes compliant with current regulatory standards?

A: Yes. Both TPD4E101DPWR and SP1004U-ULC-04UTG are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, meeting current regulatory requirements and ensuring long-term supply chain viability.

Q: What is the operating temperature range difference between substitutes and the original?

A: The CPDA10R5V0P-HF operates from -55°C to 125°C. Both substitutes operate from -40°C to 125°C. If operation below -40°C is required, the original specification cannot be met with these substitutes.