CPDF5V0 Equivalent & Substitute Parts

Part Overview

The CPDF5V0 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 (8/20µs). The component is packaged in 1005/SOD-323F format and maintains active product status with full ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter ranges, enabling design flexibility and supply chain optimization without compromising circuit protection requirements.

Substiute Parts

CPDF5V0

Comchip TechnologyIn Stock: 45267CPDF5V0 Datasheet

Current PartRFQ

CPDFR5V0

Comchip TechnologyIn Stock: 20381CPDFR5V0 Datasheet

DirectRFQ

SMF28CA-TP

Micro Commercial CoIn Stock: 12762SMF28CA-TP Datasheet

MFR RecommendedRFQ

SMF33CA-TP

Micro Commercial CoIn Stock: 3989SMF33CA-TP Datasheet

MFR RecommendedRFQ

SMF36CA-TP

Micro Commercial CoIn Stock: 6287SMF36CA-TP Datasheet

MFR RecommendedRFQ

SMF40CA-TP

Micro Commercial CoIn Stock: 30275SMF40CA-TP Datasheet

MFR RecommendedRFQ

SMF48CA-TP

Micro Commercial CoIn Stock: 12533SMF48CA-TP Datasheet

MFR RecommendedRFQ

SMF5.0CA-TP

Micro Commercial CoIn Stock: 10301SMF5.0CA-TP Datasheet

MFR RecommendedRFQ

SMF64CA-TP

Micro Commercial CoIn Stock: 12928SMF64CA-TP Datasheet

MFR RecommendedRFQ

SMF70CA-TP

Micro Commercial CoIn Stock: 32076SMF70CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CPDF5V0 is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Reverse Standoff (Typ): 5V
• Voltage - Breakdown (Min): ≥5.1V
• Voltage - Clamping (Max) @ Ipp: ≤15V
• Current - Peak Pulse (10/1000µs): ≥5A
• Power - Peak Pulse: ≥75W
• Bidirectional Channels: 1
• Type: Zener
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Direct Equivalent: CPDFR5V0 (Comchip Technology) maintains identical electrical specifications and packaging, differing only in manufacturer part number designation and inventory availability.

Cross-Manufacturer Alternatives: SMF5.0CA-TP (Micro Commercial Co) provides equivalent 5V standoff voltage protection with enhanced peak pulse current capability (21.7A) and superior power dissipation (200W), accommodating higher transient stress conditions while maintaining the same voltage protection envelope. This part uses SOD-123FL packaging instead of 1005/SOD-323F.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Voltage Class): CPDFR5V0 provides identical electrical and mechanical specifications to the CPDF5V0, maintaining the same 5V protection envelope, 15V clamping voltage, and 1005/SOD-323F package footprint. Both parts carry active product status, ROHS3 compliance, and unlimited MSL rating. Selection between these two Comchip variants depends on inventory availability and supply chain requirements.

Enhanced Performance Alternative (5V Class): SMF5.0CA-TP (Micro Commercial Co) operates at the same 5V reverse standoff voltage but delivers significantly higher peak pulse current (21.7A versus 5A) and power dissipation (200W versus 75W). This part is suitable for applications requiring greater transient energy absorption within the 5V protection class. The SOD-123FL package differs from the 1005/SOD-323F footprint and requires PCB layout modification. All compliance certifications (ROHS3, MSL 1) remain equivalent.

Higher Voltage Protection (28V–70V Classes): SMF28CA-TP, SMF33CA-TP, SMF36CA-TP, SMF40CA-TP, SMF48CA-TP, SMF64CA-TP, and SMF70CA-TP are not direct substitutes for the CPDF5V0 due to significantly higher reverse standoff voltages (28V to 70V). These parts are applicable only in circuits requiring protection at their respective voltage ratings and are not interchangeable with the 5V CPDF5V0 without circuit redesign.

All substitute parts maintain active product status and full ROHS3 compliance with unlimited moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can SMF5.0CA-TP replace CPDF5V0 in my circuit? A: SMF5.0CA-TP provides equivalent 5V reverse standoff voltage and clamping characteristics, making it electrically compatible for 5V protection applications. However, the package changes from 1005/SOD-323F to SOD-123FL, requiring PCB footprint modification. Verify board layout compatibility before implementation.

Q: What is the difference between CPDF5V0 and CPDFR5V0? A: Both parts are manufactured by Comchip Technology with identical electrical specifications (5V standoff, 15V clamping, 5A peak pulse current) and packaging (1005/SOD-323F). The difference is the manufacturer part number designation. CPDFR5V0 is a direct equivalent suitable for supply chain substitution.

Q: Why are SMF28CA-TP through SMF70CA-TP listed as substitutes if they have different voltage ratings? A: These parts are listed in the substitute database but are not functionally interchangeable with CPDF5V0 due to their higher voltage ratings (28V–70V). They are applicable only in circuits designed for those specific voltage protection levels. Selecting a higher-voltage TVS diode for a 5V circuit will not provide adequate protection.

Q: Does package change affect circuit performance? A: Package change from 1005/SOD-323F to SOD-123FL affects PCB layout, trace routing, and thermal management characteristics. Electrical performance remains equivalent if the same voltage and current ratings are maintained. Verify thermal dissipation requirements for your specific application.

Q: Are all listed parts ROHS3 compliant? A: Yes. CPDF5V0, CPDFR5V0, and all Micro Commercial Co SMF series parts listed carry ROHS3 compliance certification. All parts maintain unlimited moisture sensitivity rating (MSL 1).

Q: What determines if a TVS diode can substitute for CPDF5V0? A: Substitution requires matching reverse standoff voltage (5V), maintaining clamping voltage at or below 15V, peak pulse current at or above 5A, and power dissipation at or above 75W. Package compatibility and compliance certifications must also align with circuit requirements.