CPDU12V Equivalent & Substitute Parts

Part Overview

The CPDU12V 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 12V reverse standoff voltage and provides 25V clamping at peak pulse current, making it suitable for protecting sensitive electronic circuits from transient voltage events. The component is currently in active production status and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the primary part number becomes unavailable due to supply constraints, inventory limitations, or packaging format requirements while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

CPDU12V

Comchip TechnologyIn Stock: 18751CPDU12V Datasheet

Current PartRFQ

CPDU12V-HF

Comchip TechnologyIn Stock: 4366CPDU12V-HF Datasheet

DirectRFQ

CPDUR12V

Comchip TechnologyIn Stock: 57303CPDUR12V Datasheet

DirectRFQ

CPDUR12V-HF

Comchip TechnologyIn Stock: 127796CPDUR12V-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

All substitute parts for CPDU12V are manufactured by Comchip Technology and share identical electrical specifications across all critical parameters: 12V reverse standoff voltage, 13V minimum breakdown voltage, 25V maximum clamping voltage, 1A peak pulse current, and 25W peak pulse power. The 0603/SOD-523F package format remains constant across all variants, ensuring mechanical and thermal compatibility in PCB assembly.

Substitution is determined by the following key parameters:

• Voltage ratings (reverse standoff, breakdown, clamping)
• Peak pulse current and power specifications
• Package format (0603/SOD-523F)
• Bidirectional channel configuration (1 channel)
• Capacitance characteristics (12pF @ 1MHz)
• Compliance certifications (RoHS3, REACH)

The primary differentiation among substitute parts lies in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and inventory availability, not electrical performance.

Parameter Comparison

Engineering Selection Recommendations

All four part numbers (CPDU12V, CPDU12V-HF, CPDUR12V, CPDUR12V-HF) are functionally equivalent for circuit protection applications requiring 12V standoff voltage and 25V clamping performance. Each part maintains active production status and full compliance with RoHS3 and REACH regulations.

Selection between these parts should be based on packaging and supply requirements:

CPDU12V and CPDU12V-HF are supplied in Tape & Reel format, suitable for automated pick-and-place assembly operations. CPDUR12V is available in Cut Tape & Digi-Reel format, offering flexibility for lower-volume applications or mixed component sourcing. CPDUR12V-HF combines Tape & Reel packaging with the highest current inventory availability.

All parts are qualified for general-purpose transient voltage suppression applications and maintain identical thermal and electrical performance characteristics within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can CPDU12V-HF be used as a direct replacement for CPDU12V?

A: Yes. Both parts share identical electrical specifications, package format (0603/SOD-523F), and compliance certifications. The difference is packaging format (both Tape & Reel) and inventory availability. No circuit modifications are required.

Q: What is the difference between CPDUR12V and CPDU12V?

A: The electrical and thermal specifications are identical. The primary difference is packaging format: CPDUR12V uses Cut Tape & Digi-Reel format, while CPDU12V uses standard Tape & Reel. Both are surface-mount compatible in the 0603/SOD-523F package.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four part numbers (CPDU12V, CPDU12V-HF, CPDUR12V, CPDUR12V-HF) are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Can these parts be used interchangeably in automated assembly?

A: Parts supplied in Tape & Reel format (CPDU12V, CPDU12V-HF, CPDUR12V-HF) are directly compatible with standard pick-and-place equipment. CPDUR12V in Cut Tape format requires manual feeding or compatible tape handling systems.

Q: What is the moisture sensitivity rating for these parts?

A: All parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply without special desiccant or humidity control requirements.

Q: Are the voltage specifications identical across all substitute parts?

A: Yes. All parts maintain 12V reverse standoff voltage, 13V minimum breakdown voltage, and 25V maximum clamping voltage. Peak pulse current (1A at 8/20µs) and power dissipation (25W) are identical across all variants.