ZLLS2000TC Schottky Diode Equivalent & Substitute Parts

Part Overview

The ZLLS2000TC is a Schottky diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage with 2.2 A average rectified current in a surface mount SOT-23-6 package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The ZLLS2000TC maintains full electrical and mechanical compatibility with its active substitute, ensuring seamless integration into existing circuit designs without modification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	2.2	A
Voltage - Forward (Vf) (Max) @ If	540 mV @ 2 A	mV
Reverse Recovery Time (trr)	6	ns
Current - Reverse Leakage @ Vr	40 µA @ 30 V	µA
Capacitance @ Vr, F	65 pF @ 30 V, 1 MHz	pF
Operating Temperature - Junction (Max)	150	°C
Package / Case	SOT-23-6	—
Mounting Type	Surface Mount	—
Technology	Schottky	—

Substitute Part Grouping Explanation

Substitution of the ZLLS2000TC is determined by strict equivalence across all electrical and mechanical parameters. The substitute part ZLLS2000TA 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): 2.2 A
Voltage - Forward (Vf) (Max) @ If: 540 mV @ 2 A
Reverse Recovery Time (trr): 6 ns
Current - Reverse Leakage @ Vr: 40 µA @ 30 V
Capacitance @ Vr, F: 65 pF @ 30 V, 1 MHz
Operating Temperature - Junction (Max): 150°C
Package / Case: SOT-23-6
Mounting Type: Surface Mount
Technology: Schottky
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Both parts share the same base product number (ZLLS2000) and are manufactured by Diodes Incorporated, confirming design and functional equivalence.

Parameter Comparison

Parameter	ZLLS2000TC	ZLLS2000TA	Match
Manufacturer	Diodes Incorporated	Diodes Incorporated	✓
Category	Diodes, Rectifiers	Diodes, Rectifiers	✓
Technology	Schottky	Schottky	✓
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	✓
Current - Average Rectified (Io)	2.2 A	2.2 A	✓
Voltage - Forward (Vf) (Max) @ If	540 mV @ 2 A	540 mV @ 2 A	✓
Reverse Recovery Time (trr)	6 ns	6 ns	✓
Current - Reverse Leakage @ Vr	40 µA @ 30 V	40 µA @ 30 V	✓
Capacitance @ Vr, F	65 pF @ 30 V, 1 MHz	65 pF @ 30 V, 1 MHz	✓
Operating Temperature - Junction (Max)	150°C	150°C	✓
Package / Case	SOT-23-6	SOT-23-6	✓
Mounting Type	Surface Mount	Surface Mount	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
Product Status	Obsolete	Active	—
Packaging	—	Cut Tape (CT) & Digi-Reel®	—

Engineering Selection Recommendations

The ZLLS2000TA is the direct substitute for the obsolete ZLLS2000TC. Selection of ZLLS2000TA is based on the following factors:

Product Status: The ZLLS2000TA maintains active product status with Diodes Incorporated, ensuring continued availability and manufacturing support. The ZLLS2000TC is classified as obsolete and should be replaced in new designs and procurement cycles.

Regulatory Compliance: Both parts maintain identical compliance certifications, including ROHS3 compliance and REACH unaffected status. No additional compliance verification is required when substituting ZLLS2000TA for ZLLS2000TC.

Electrical Equivalence: All electrical parameters are identical between the two parts, including voltage ratings, current ratings, forward voltage drop, reverse recovery time, leakage current, and junction capacitance. Direct substitution does not require circuit redesign or re-qualification.

Mechanical Compatibility: Both parts use the SOT-23-6 surface mount package with identical pin configurations and thermal characteristics. PCB layout modifications are not required.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no special moisture handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can ZLLS2000TA be used as a direct replacement for ZLLS2000TC without circuit modification?

A: Yes. The ZLLS2000TA is a parametric equivalent with identical electrical specifications, voltage ratings, current ratings, and package configuration. Direct substitution is supported without circuit redesign.

Q: Are there any differences in the SOT-23-6 package between ZLLS2000TC and ZLLS2000TA?

A: No. Both parts use the same SOT-23-6 surface mount package with identical pin assignments, dimensions, and thermal characteristics. PCB footprints are interchangeable.

Q: What is the difference between the ZLLS2000TC and ZLLS2000TA packaging options?

A: The ZLLS2000TC packaging specification is not detailed in the provided data. The ZLLS2000TA is available in Cut Tape (CT) and Digi-Reel® packaging formats. Consult the supplier for specific packaging availability and lead time requirements.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both ZLLS2000TC and ZLLS2000TA are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. No additional compliance documentation is required for substitution.

Q: Why is the ZLLS2000TC classified as obsolete?

A: The ZLLS2000TC has been discontinued by Diodes Incorporated. The ZLLS2000TA is the active equivalent and should be used for all new designs and procurement requirements.

Q: Are the forward voltage drop and reverse recovery time identical between the two parts?

A: Yes. Both parts specify 540 mV maximum forward voltage drop at 2 A and 6 ns reverse recovery time. Switching performance and power dissipation characteristics are equivalent.

Q: What is the maximum reverse leakage current for both parts?

A: Both ZLLS2000TC and ZLLS2000TA specify 40 µA maximum reverse leakage current at 30 V. Leakage characteristics are identical.

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