CPDT-5V0C-HF Equivalent & Substitute Parts

Part Overview

The CPDT-5V0C-HF is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a 5V reverse standoff voltage and 6.1V minimum breakdown voltage in a compact SOT-23-3 package. The part is Active status and ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same package footprint and voltage class.

Key Parameters

Parameter	CPDT-5V0C-HF
Manufacturer	Comchip Technology
Part Number	CPDT-5V0C-HF
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Bidirectional Channels	2
Voltage - Reverse Standoff (Typ)	5V
Voltage - Breakdown (Min)	6.1V
Mounting Type	Surface Mount
Package / Case	TO-236-3, SC-59, SOT-23-3
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the CPDT-5V0C-HF are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Bidirectional Channels: 2 (required match)
Package / Case: SOT-23-3 (required match)
Voltage - Reverse Standoff (Typ): 5V nominal class
Voltage - Breakdown (Min): 6.0V to 6.1V range
Mounting Type: Surface Mount (required match)
RoHS Status: ROHS3 Compliant (required match)

Substitute Groups Identified:

Group 1: 5V Class TVS Diodes (Direct Voltage Class Match)

Würth Elektronik 824022: 5V standoff, 6.1V breakdown, 8V clamp, 8A peak pulse
Bourns CDSOT23-0502B: 5V standoff, 6V breakdown, 9V clamp, 8.5A peak pulse

Group 2: Higher Voltage Class TVS Diodes (Different Application Domains)

Bourns CDSOT23-SM712: 7V/12V standoff, 13.3V/7.5V breakdown (RS-485 applications)
STMicroelectronics ESDCAN01-2BLY: 24V standoff, 25V breakdown (CAN automotive)
STMicroelectronics ESDCAN24-2BLY: 24V standoff, 26.2V breakdown (CAN automotive)
onsemi ESDONCAN1LT3G: 24V standoff, 26.2V breakdown (CAN applications)
onsemi NUP2115LT1G: 24V standoff, 26.2V breakdown (automotive AEC-Q101)
onsemi NUP2115LT3G: 24V standoff, 26.2V breakdown (automotive AEC-Q101)
Nexperia PESD12VL2BT,215: 12V standoff, 14.2V breakdown (automotive AEC-Q100)
Nexperia PESD15VL2BT,215: 15V standoff, 17.1V breakdown (automotive AEC-Q100)

Parameter Comparison

Manufacturer	Part Number	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Package / Case	RoHS Status	MSL	Product Status
Comchip Technology	CPDT-5V0C-HF	5V	6.1V	—	—	SOT-23-3	ROHS3	1	Active
Würth Elektronik	824022	5V (Max)	6.1V	8V	8A (8/20µs)	SOT-23-3	ROHS3	3	Active
Bourns Inc.	CDSOT23-0502B	5V	6V	9V	8.5A (8/20µs)	SOT-23-3	ROHS3	3	Active
Bourns Inc.	CDSOT23-SM712	7V (Max), 12V (Max)	7.5V, 13.3V	14V, 26V	17A (8/20µs)	SOT-23-3	ROHS3	1	Active
STMicroelectronics	ESDCAN01-2BLY	24V (Max)	25V	40V	5.5A (8/20µs)	SOT-23-3	ROHS3	1	Active
STMicroelectronics	ESDCAN24-2BLY	24V (Max)	26.2V	40V	5.5A (8/20µs)	SOT-23-3	ROHS3	1	Active
onsemi	ESDONCAN1LT3G	24V (Min)	26.2V	50V	3A (8/20µs)	SOT-23-3	ROHS3	1	Active
onsemi	NUP2115LT1G	24V (Min)	26.2V	50V	3A (8/20µs)	SOT-23-3	ROHS3	1	Active
onsemi	NUP2115LT3G	24V (Min)	26.2V	50V	3A (8/20µs)	SOT-23-3	ROHS3	1	Active
Nexperia USA Inc.	PESD12VL2BT,215	12V (Max)	14.2V	37V	5A (8/20µs)	SOT-23-3	ROHS3	1	Active
Nexperia USA Inc.	PESD15VL2BT,215	15V (Max)	17.1V	44V	5A (8/20µs)	SOT-23-3	ROHS3	1	Active

Engineering Selection Recommendations

Direct Voltage Class Substitutes (5V Standoff):

The Würth Elektronik 824022 and Bourns CDSOT23-0502B are functionally equivalent to the CPDT-5V0C-HF within the 5V reverse standoff voltage class. Both maintain the same SOT-23-3 package, bidirectional channel configuration, and ROHS3 compliance. Selection between these options depends on clamping voltage tolerance (8V vs. 9V) and peak pulse current requirements (8A vs. 8.5A). Both are Active status products suitable for direct substitution in general-purpose applications.

Higher Voltage Class Alternatives:

Parts in the 12V, 15V, and 24V standoff voltage classes represent different application domains and should only be selected when circuit requirements explicitly demand higher voltage protection thresholds. These include automotive-qualified options (NUP2115LT1G, NUP2115LT3G with AEC-Q101; PESD12VL2BT,215, PESD15VL2BT,215 with AEC-Q100) and CAN-bus specific variants (ESDCAN01-2BLY, ESDCAN24-2BLY, ESDONCAN1LT3G). All listed alternatives maintain Active product status and ROHS3 compliance.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant and Active status. Automotive applications requiring AEC qualification should reference the specific grade and qualification status of each part. MSL ratings vary between 1 (Unlimited) and 3 (168 Hours); verify moisture sensitivity requirements for your manufacturing process.

Frequently Asked Questions (FAQ)

Q: Can I substitute the CPDT-5V0C-HF with a higher voltage TVS diode like the 24V variants?

A: Higher voltage TVS diodes operate at different reverse standoff and breakdown thresholds. Substitution is only valid if your circuit design explicitly requires higher voltage protection. Using a 24V TVS diode in a 5V protection circuit will not activate at the intended threshold and will not provide adequate protection.

Q: What is the difference between the Würth Elektronik 824022 and Bourns CDSOT23-0502B?

A: Both are 5V standoff TVS diodes in SOT-23-3 packages. The primary differences are clamping voltage (8V vs. 9V) and peak pulse current (8A vs. 8.5A). Selection depends on your specific circuit's transient energy absorption requirements and clamping voltage tolerance.

Q: Are the onsemi NUP2115LT1G and NUP2115LT3G interchangeable?

A: Both parts share identical electrical specifications (24V standoff, 26.2V breakdown, 50V clamp, 3A peak pulse) and AEC-Q101 automotive qualification. The primary difference is packaging format (Tape & Reel). They are electrically interchangeable; selection depends on your procurement and assembly requirements.

Q: Why do some substitute parts have MSL 3 instead of MSL 1?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture absorption during storage. MSL 1 (Unlimited) allows indefinite storage without baking, while MSL 3 (168 Hours) requires baking before reflow if storage exceeds 168 hours. Verify your manufacturing process requirements before selecting parts with higher MSL ratings.

Q: Can I use PESD12VL2BT,215 or PESD15VL2BT,215 as substitutes for the CPDT-5V0C-HF?

A: These Nexperia parts operate at 12V and 15V standoff voltages respectively, which are significantly higher than the CPDT-5V0C-HF's 5V rating. They are not suitable substitutes for 5V protection circuits. Use them only if your design requires 12V or 15V protection thresholds.

Q: Are all listed substitute parts available in the same SOT-23-3 package?

A: Yes. All substitute parts listed are specified for SOT-23-3 (TO-236-3, SC-59) surface-mount packages, ensuring mechanical compatibility with the CPDT-5V0C-HF footprint.

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