PESD1CAN,215 Equivalent & Substitute Parts

Part Overview

The PESD1CAN,215 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Nexperia USA Inc., designed for CAN bus protection applications. This surface-mount component operates with a 24V reverse standoff voltage and provides 70V clamping at peak pulse current, delivering 200W peak pulse power dissipation. The device is housed in a TO-236AB (SOT-23-3) package and is qualified to AEC-Q101 automotive standards. The product status is listed as "Not For New Designs," making identification of equivalent alternatives essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	24V (Max)	V
Voltage - Breakdown (Min)	25.4V	V
Voltage - Clamping (Max) @ Ipp	70V	V
Current - Peak Pulse (10/1000µs)	3A	A
Power - Peak Pulse	200W	W
Bidirectional Channels	2	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature	-65°C ~ 150°C (TA)	°C
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution eligibility for the PESD1CAN,215 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff: 24V (Max)
Voltage - Clamping (Max) @ Ipp: 70V or lower (lower values provide tighter clamping)
Current - Peak Pulse (10/1000µs): 3A or higher
Package / Case: TO-236-3, SC-59, SOT-23-3 (mechanical compatibility)
Bidirectional Channels: 2
Applications: CAN bus protection

Grouping Logic:

Group 1 - Direct Equivalents (Nexperia): Parts maintaining identical electrical specifications and packaging. These are pin-compatible replacements with equivalent performance characteristics.

Group 2 - Direct Equivalents (Alternative Manufacturers): Parts from other manufacturers (Diodes Incorporated, onsemi, STMicroelectronics) meeting or exceeding the primary electrical specifications while maintaining SOT-23-3 package compatibility.

Group 3 - Similar Performance (Modified Parameters): Parts with variations in clamping voltage, peak pulse current, or capacitance that remain functionally suitable for CAN protection but with different performance profiles.

Group 4 - Incompatible Specifications: Parts with voltage ratings or current ratings that deviate significantly from the primary specifications and are not suitable for direct substitution.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (10/1000µs)	Power - Peak Pulse	Package	Product Status	Qualification
PESD1CAN,215	Nexperia USA Inc.	24V (Max)	70V	3A (8/20µs)	200W	TO-236AB	Not For New Designs	AEC-Q101
PESD1CANVL	Nexperia USA Inc.	24V (Max)	70V	3A (8/20µs)	200W	TO-236AB	Not For New Designs	AEC-Q100
PESD1FLEX,215	Nexperia USA Inc.	24V (Max)	70V	3A (8/20µs)	200W	TO-236AB	Not For New Designs	AEC-Q100
PESD24VL2BT,215	Nexperia USA Inc.	24V (Max)	70V	3A (8/20µs)	200W	TO-236AB	Not For New Designs	AEC-Q100
DESD1CAN2SOQ-7	Diodes Incorporated	24V (Max)	70V	3A (8/20µs)	200W	SOT-23-3	Active	AEC-Q101
ESDONCAN1LT1G	onsemi	24V (Min)	50V	3A (8/20µs)	—	SOT-23-3	Active	—
ESDCAN01-2BLY	STMicroelectronics	24V (Max)	40V	5.5A (8/20µs)	230W	SOT-23-3	Active	AEC-Q101
ESDCAN24-2BLY	STMicroelectronics	24V (Max)	40V	5.5A (8/20µs)	230W	SOT-23-3	Active	AEC-Q101
CDSOT23-T24CAN	Bourns Inc.	24V	40V	8A (8/20µs)	—	SOT-23	Active	—
CPDT-5V0C-HF	Comchip Technology	5V	—	—	—	SOT-23-3	Active	—

Engineering Selection Recommendations

Recommended Direct Substitutes (Electrical & Mechanical Equivalence):

The DESD1CAN2SOQ-7 from Diodes Incorporated is the primary recommended substitute. It maintains identical electrical specifications (24V reverse standoff, 70V clamping, 3A peak pulse current, 200W peak power) and is housed in the SOT-23-3 package. The device holds Active product status and carries AEC-Q101 automotive qualification, making it suitable for new production and long-term availability.

Secondary Substitutes (Nexperia Alternatives):

PESD1CANVL, PESD1FLEX,215, and PESD24VL2BT,215 are electrically equivalent to the PESD1CAN,215 with identical voltage and current ratings. All three maintain the TO-236AB package and automotive-grade specifications. However, these parts share the same "Not For New Designs" status as the original component. PESD1CANVL and PESD1FLEX,215 carry AEC-Q100 qualification, while PESD24VL2BT,215 also carries AEC-Q100. These options are suitable for replacement in existing designs but should not be selected for new product development.

Conditional Substitutes (Modified Performance Parameters):

ESDCAN01-2BLY and ESDCAN24-2BLY from STMicroelectronics provide tighter clamping voltage (40V vs. 70V) and higher peak pulse current (5.5A vs. 3A) with increased power dissipation (230W vs. 200W). These devices are Active products with AEC-Q101 qualification. The reduced clamping voltage provides enhanced transient suppression but requires circuit-level validation to confirm compatibility with the protected CAN bus interface.

ESDONCAN1LT1G from onsemi operates with 50V clamping and 3A peak pulse current. This device is Active and CAN-qualified but lacks published power dissipation specifications. The intermediate clamping voltage (50V) positions this part between the original 70V specification and the tighter 40V alternatives.

Not Recommended for Substitution:

CDSOT23-T24CAN from Bourns Inc. exhibits significantly different electrical characteristics (40V clamping, 8A peak pulse current) and lacks published AEC qualification. While mechanically compatible, the substantially higher current rating and lower clamping voltage represent a different protection profile unsuitable for direct replacement.

CPDT-5V0C-HF from Comchip Technology operates at 5V reverse standoff voltage, which is incompatible with the 24V CAN bus protection requirement. This part is not suitable for substitution.

Frequently Asked Questions (FAQ)

Q: Can PESD1CANVL be used as a direct replacement for PESD1CAN,215?

A: Yes. PESD1CANVL maintains identical electrical specifications (24V reverse standoff, 70V clamping, 3A peak pulse current) and is housed in the same TO-236AB package. Both devices are Nexperia products with automotive-grade specifications. The primary difference is the qualification standard (AEC-Q100 vs. AEC-Q101), which may be acceptable depending on your application requirements and design validation protocols.

Q: What is the difference between the 70V clamping voltage of PESD1CAN,215 and the 40V clamping voltage of ESDCAN01-2BLY?

A: Clamping voltage determines the maximum voltage transient that reaches the protected circuit. The PESD1CAN,215 allows transients up to 70V before clamping, while ESDCAN01-2BLY clamps at 40V. Lower clamping voltage provides tighter transient suppression but requires verification that the CAN bus interface can tolerate the reduced voltage margin. The ESDCAN01-2BLY also provides higher peak pulse current (5.5A vs. 3A), enabling greater energy absorption.

Q: Is DESD1CAN2SOQ-7 a suitable long-term replacement for PESD1CAN,215?

A: Yes. DESD1CAN2SOQ-7 from Diodes Incorporated is electrically equivalent with identical voltage and current ratings, maintains SOT-23-3 package compatibility, and holds Active product status with AEC-Q101 qualification. This part is recommended for new designs and provides superior long-term availability compared to the "Not For New Designs" status of the original component.

Q: Can I use ESDONCAN1LT1G as a substitute if DESD1CAN2SOQ-7 is unavailable?

A: ESDONCAN1LT1G is a conditional substitute. It maintains the 24V reverse standoff voltage and 3A peak pulse current but operates with 50V clamping voltage instead of 70V. The device is Active and CAN-qualified. Substitution requires circuit-level validation to confirm that the tighter clamping voltage does not adversely affect CAN bus signal integrity or introduce unintended protection interactions.

Q: What packaging options are available for CAN bus TVS diodes equivalent to PESD1CAN,215?

A: All recommended substitutes are available in SOT-23-3 (TO-236-3, SC-59) surface-mount packages. This package is standard for CAN protection applications and ensures mechanical compatibility with existing PCB layouts. Nexperia parts are supplied in TO-236AB variant, while alternative manufacturers use the SOT-23-3 designation. Both designations refer to the same physical package.

Q: Are there any temperature range differences between PESD1CAN,215 and its substitutes?

A: PESD1CAN,215 operates from -65°C to 150°C (TA). DESD1CAN2SOQ-7 operates from -65°C to 150°C (TJ). ESDCAN01-2BLY operates from -55°C to 150°C (TJ), providing a narrower low-temperature range. ESDCAN24-2BLY operates from -40°C to 150°C (TJ), further restricting low-temperature operation. For applications requiring full -65°C operation, PESD1CAN,215 or DESD1CAN2SOQ-7 are required.

Q: What is the significance of AEC-Q101 vs. AEC-Q100 qualification?

A: AEC-Q101 is the automotive qualification standard for discrete semiconductors including TVS diodes. AEC-Q100 is the broader automotive qualification standard for integrated circuits. For TVS diode applications, AEC-Q101 is the appropriate specification. PESD1CAN,215 and DESD1CAN2SOQ-7 both carry AEC-Q101 qualification. Nexperia alternatives (PESD1CANVL, PESD1FLEX,215, PESD24VL2BT,215) carry AEC-Q100, which may require additional validation for automotive TVS applications depending on your qualification requirements.

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