ZHCS2000TC Equivalent & Substitute Parts

Part Overview

The ZHCS2000TC is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 2 A average rectified current in a surface mount SOT-26 package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The ZHCS2000TC maintains full electrical and mechanical compatibility with its active counterpart through identical parametric specifications and package configuration.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	mV
Reverse Recovery Time (trr)	5.5	ns
Current - Reverse Leakage @ Vr	300 µA @ 30 V	µA
Capacitance @ Vr, F	50 pF @ 25V, 1MHz	pF
Package / Case	SOT-23-6	—
Operating Temperature - Junction (Max)	125	°C
Technology	Schottky	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the ZHCS2000TC is determined by strict equivalence across all electrical and mechanical parameters. The substitute part ZHCS2000TA is classified as a parametric equivalent because it maintains identical specifications across the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 500 mV @ 2 A
Reverse Recovery Time (trr): 5.5 ns
Current - Reverse Leakage @ Vr: 300 µA @ 30 V
Capacitance @ Vr, F: 50 pF @ 25V, 1MHz
Package / Case: SOT-23-6
Operating Temperature - Junction (Max): 125°C
Technology: Schottky
Mounting Type: Surface Mount

Both parts share the same base product number (ZHCS2000) and are manufactured by Diodes Incorporated. The primary distinction is product status: ZHCS2000TC is obsolete, while ZHCS2000TA is active.

Parameter Comparison

Parameter	ZHCS2000TC	ZHCS2000TA	Match
Manufacturer	Diodes Incorporated	Diodes Incorporated	✓
Technology	Schottky	Schottky	✓
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	✓
Current - Average Rectified (Io)	2 A	2 A	✓
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	500 mV @ 2 A	✓
Reverse Recovery Time (trr)	5.5 ns	5.5 ns	✓
Current - Reverse Leakage @ Vr	300 µA @ 30 V	300 µA @ 30 V	✓
Capacitance @ Vr, F	50 pF @ 25V, 1MHz	50 pF @ 25V, 1MHz	✓
Package / Case	SOT-23-6	SOT-23-6	✓
Operating Temperature - Junction (Max)	125°C	125°C	✓
Mounting Type	Surface Mount	Surface Mount	✓
Product Status	Obsolete	Active	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓

Engineering Selection Recommendations

The ZHCS2000TA is the direct substitute for the obsolete ZHCS2000TC. Selection of ZHCS2000TA is supported by the following factors:

Product Status: ZHCS2000TA maintains active product status with Diodes Incorporated, ensuring ongoing availability and manufacturing support. ZHCS2000TC is obsolete and subject to discontinuation.

Regulatory Compliance: Both parts maintain identical RoHS3 compliance and REACH unaffected status, confirming equivalent environmental and regulatory standing.

Parametric Equivalence: All electrical characteristics, thermal ratings, and mechanical specifications are identical between the two parts, enabling direct substitution without circuit redesign or performance degradation.

Packaging and Handling: Both parts utilize SOT-23-6 surface mount packaging with identical moisture sensitivity classification (MSL 1), confirming equivalent handling and storage requirements.

Availability: ZHCS2000TA is available in high volume (62,100 pieces in stock) compared to ZHCS2000TC (1,114 pieces), providing superior procurement reliability for new designs and production requirements.

Frequently Asked Questions (FAQ)

Q: Can ZHCS2000TA be used as a direct replacement for ZHCS2000TC in existing designs?

A: Yes. ZHCS2000TA is a parametric equivalent with identical electrical specifications, voltage ratings, current ratings, forward voltage drop, reverse recovery time, leakage current, and capacitance. The parts are functionally interchangeable in all circuit applications.

Q: Are there any differences in package dimensions or pin configuration between ZHCS2000TC and ZHCS2000TA?

A: No. Both parts use the SOT-23-6 package with identical mechanical specifications and pin assignments. PCB layouts and component placement require no modification.

Q: What is the difference between ZHCS2000TC and ZHCS2000TA?

A: The primary difference is product status. ZHCS2000TC is classified as obsolete, while ZHCS2000TA is active. Both parts share the same base product number (ZHCS2000) and are manufactured by Diodes Incorporated with identical electrical and mechanical characteristics.

Q: Are the RoHS and REACH compliance statuses the same for both parts?

A: Yes. Both ZHCS2000TC and ZHCS2000TA are RoHS3 compliant and REACH unaffected, confirming equivalent environmental compliance.

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

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used in high-frequency switching applications?

A: Yes. Both parts feature a reverse recovery time of 5.5 ns, supporting fast switching applications with switching frequencies up to the limits of the circuit design.

Q: What is the maximum junction temperature rating?

A: Both parts are rated for a maximum junction temperature of 125°C, establishing the thermal operating limit for circuit design calculations.

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