Is there a pin-compatible replacement for TPD2E001DZDR?

While several parts like UDT14A05L03 share the SOT-143 package and a compatible flow-through pinout, no exact pin-to-pin replacement with identical key parameters has been confirmed. All candidates require review, especially for the working voltage.

What risks should I check before replacing TPD2E001DZDR?

Key risks include: 1) Working Voltage: Ensure the substitute's voltage rating (e.g., 5.0V) is sufficient for your bus voltage. 2) Capacitance: Verify the substitute's capacitance is low enough for your data rate. 3) Pinout: Confirm the pin configuration matches the target's flow-through layout (I/O on pins 1 & 4).

TPD2E001DZDR Alternatives, Datasheet & Cross Reference | Leiditech

TPD2E001DZDR is a 2-channel low-capacitance TVS diode array from Leiditech, designed in a SOT-143 package to protect high-speed data lines like USB and HDMI from ESD strikes. Its 5.5V rating and 1.5pF capacitance make it ideal for sensitive interfaces.

AI replacement insight

Electrical riskmedium

Many candidates have a lower 5.0V working voltage vs target's 5.5V.

Package risklow

SOT-143 is a common package, but pinout topology must be verified (flow-through).

Can it be replaced directly?

No drop-in, pin-compatible replacement with identical key parameters has been identified. Several alternatives exist with a lower 5.0V working voltage, requiring engineering review to ensure compatibility with the system's voltage rail.

Best replacement path

Consider parametric alternatives like Yageo's UDT14A05L03, which matches the pinout and capacitance but has a lower 5.0V working voltage that requires review.

Main risk

The primary risk is the working voltage (Vrwm). Many potential substitutes have a 5.0V rating, which is lower than the target's 5.5V and may not be suitable for all 5V systems.

Recommended alternatives

Superior capacitance and compatible pinout, but has a lower 5.0V working voltage.

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Alternative comparison matrix

Feature / factor	TPD2E001DZDR	LY143DA05UL	UDT14A05L03	Compatibility / risk
Package	SOT-143	SOT-143	SOT-143	SOT-143 — Same package and pin count.; UDT14A05L03: Same package and pin count.
Pinout	Flow-through (inferred)	Flow-through (inferred)	Flow-through (inferred)	Flow-through (inferred) — Datasheet shows compatible flow-through topology.; UDT14A05L03: Datasheet shows compatible flow-through topology.
Voltage	5.5V	5.0V	5.0V	5.0V — Lower working voltage requires design review.; UDT14A05L03: Lower working voltage requires design review.
Capacitance	1.5pF	0.3pF	1.5pF	0.3pF / 1.5pF — Lower capacitance is an improvement for high-speed lines.; UDT14A05L03: Matches target's low capacitance for high-speed lines.
Current	1A (test condition)	5.0A	12.0A	5.0A / 12.0A — Higher peak pulse current capability.; UDT14A05L03: Higher peak pulse current capability.

Application & sourcing insights

Questions & answers

Yageo's UDT14A05L03 is a strong functional alternative, matching the package, pinout topology, and 1.5pF capacitance. However, its 5.0V working voltage is lower than the target's 5.5V and must be verified for your application.