PESD24VS2UT/ZLR Equivalent & Substitute Parts

Part Overview

The PESD24VS2UT/ZLR is a unidirectional transient voltage suppressor (TVS) diode manufactured by NXP USA Inc., designed for general-purpose ESD protection applications. This surface-mount component operates with a 24V reverse standoff voltage and provides 70V clamping at peak pulse current, making it suitable for protecting sensitive electronic circuits from transient voltage events. The part is currently in active production status with 829 units available in new original inventory. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications are maintained across the specified parameter range.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	24V (Max)	V
Voltage - Breakdown (Min)	26.5V	V
Voltage - Clamping (Max) @ Ipp	70V	V
Current - Peak Pulse (10/1000µs)	3A	A
Power - Peak Pulse	160W	W
Capacitance @ 1MHz	23pF	pF
Operating Temperature Range	-65°C to 150°C	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	-
Mounting Type	Surface Mount	-
Unidirectional Channels	2	-

Substitute Part Grouping Explanation

Substitution eligibility for the PESD24VS2UT/ZLR is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff: 24V (Max)
Voltage - Breakdown: 26.5V (Min)
Voltage - Clamping: 70V (Max) @ Ipp
Current - Peak Pulse: 3A (8/20µs)
Power - Peak Pulse: 160W
Capacitance: 23pF @ 1MHz
Operating Temperature: -65°C to 150°C
Package: TO-236-3 / SOT-23-3 surface mount
Unidirectional Channels: 2
Type: Zener diode

The substitute part PESD24VS2UT,215 maintains identical electrical specifications and mechanical compatibility with the main part number, differing only in packaging format (Tape & Reel) and manufacturer designation (Nexperia USA Inc., successor entity to NXP Semiconductors).

Parameter Comparison

Parameter	PESD24VS2UT/ZLR (NXP)	PESD24VS2UT,215 (Nexperia)	Match
Voltage - Reverse Standoff (Typ)	24V (Max)	24V (Max)	✓
Voltage - Breakdown (Min)	26.5V	26.5V	✓
Voltage - Clamping (Max) @ Ipp	70V	70V	✓
Current - Peak Pulse (10/1000µs)	3A (8/20µs)	3A (8/20µs)	✓
Power - Peak Pulse	160W	160W	✓
Capacitance @ 1MHz	23pF	23pF	✓
Operating Temperature Range	-65°C to 150°C	-65°C to 150°C	✓
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	✓
Mounting Type	Surface Mount	Surface Mount	✓
Unidirectional Channels	2	2	✓
Type	Zener	Zener	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Packaging Format	Standard	Tape & Reel (TR)	Different
Qualification	Standard	AEC-Q100	Superset

Engineering Selection Recommendations

Both PESD24VS2UT/ZLR and PESD24VS2UT,215 are active production components with full RoHS3 compliance and REACH unaffected status. The substitute part PESD24VS2UT,215 carries AEC-Q100 automotive qualification, which represents an additional quality assurance level beyond the base specification. Selection between these parts should be based on packaging requirements: the main part number is available in standard packaging, while the substitute is supplied in Tape & Reel format for automated assembly processes. Both parts maintain identical electrical performance and thermal operating range, ensuring functional interchangeability in circuit applications requiring 24V standoff protection with 70V clamping capability.

Frequently Asked Questions (FAQ)

Q: Can PESD24VS2UT,215 be used as a direct replacement for PESD24VS2UT/ZLR?

A: Yes. Both parts maintain identical electrical specifications including voltage ratings, current handling, clamping characteristics, and operating temperature range. The primary difference is packaging format: PESD24VS2UT,215 is supplied in Tape & Reel format suitable for automated pick-and-place assembly, while PESD24VS2UT/ZLR uses standard packaging.

Q: What does AEC-Q100 qualification on the substitute part indicate?

A: AEC-Q100 is an automotive-grade qualification standard. The PESD24VS2UT,215 carries this certification, indicating it meets additional reliability and quality requirements for automotive applications. This does not affect compatibility with non-automotive applications.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the TO-236-3 / SOT-23-3 surface-mount package with identical mechanical specifications, ensuring PCB footprint compatibility and interchangeable placement.

Q: What is the significance of the 23pF capacitance specification?

A: The 23pF capacitance at 1MHz represents the junction capacitance of the TVS diode. This parameter is critical for high-frequency signal integrity applications, as it affects signal coupling and impedance characteristics in sensitive circuits.

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

A: Electrical and mechanical interchangeability is confirmed. However, packaging format differences (standard versus Tape & Reel) may require different handling procedures in automated assembly environments. Verify that your assembly equipment is configured for the selected packaging format.

Q: What applications are these TVS diodes designed for?

A: Both parts are specified for general-purpose ESD protection. The 24V standoff voltage and 70V clamping characteristics make them suitable for protecting I/O circuits, signal lines, and power distribution networks in consumer and industrial electronics.

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