S1KL Equivalent & Substitute Parts Reference

Part Overview

The S1KL is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as an Active product and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and regulatory compliance to ensure functional interchangeability in circuit applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5 @ 800 V	µA
Capacitance @ Vr, F	9 @ 4V, 1MHz	pF
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 175	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the S1KL rectifier diode are identified through parametric equivalence. The substitution logic is based on the following critical parameters that must match or exceed the main part specifications:

Voltage Rating: DC reverse voltage of 800 V minimum
Current Rating: Average rectified current of 1 A minimum
Forward Voltage Drop: Maximum 1.1 V at 1 A forward current
Reverse Recovery Time: 1.8 µs maximum
Reverse Leakage Current: 5 µA maximum at 800 V
Package Compatibility: DO-219AB Sub SMA surface mount package
Mounting Type: Surface mount configuration
Temperature Range: Operating junction temperature from -55°C to 175°C
Regulatory Compliance: RoHS3 compliant status

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes for the S1KL diode.

Parameter Comparison

Parameter	S1KL (Main Part)	S1KL (Substitute)	Match Status
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Identical
Category	Diodes, Rectifiers	Diodes, Rectifiers	Identical
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	Identical
Current - Average Rectified (Io)	1 A	1 A	Identical
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	Identical
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	Identical
Current - Reverse Leakage @ Vr	5 µA @ 800 V	5 µA @ 800 V	Identical
Capacitance @ Vr, F	9 pF @ 4V, 1MHz	9 pF @ 4V, 1MHz	Identical
Package / Case	DO-219AB	DO-219AB	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Operating Temperature - Junction	-55°C ~ 175°C	-55°C ~ 175°C	Identical
Technology	Standard	Standard	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

The S1KL substitute part identified in this reference maintains complete parametric equivalence with the main part number. Both parts are manufactured by Taiwan Semiconductor Corporation and carry Active product status, ensuring continued availability and support. Both parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

The substitute part is available in Cut Tape (CT) packaging format, which differs from the main part's unspecified packaging format. This packaging difference does not affect electrical or mechanical compatibility; it reflects alternative supply chain configurations for the same component.

Selection between the main part and substitute should be based on packaging requirements, inventory availability, and supply chain logistics rather than electrical performance, as all parameters are identical.

Frequently Asked Questions (FAQ)

Q: Are the S1KL main part and S1KL substitute electrically identical?

A: Yes. Both parts share identical electrical specifications including voltage rating (800 V), current rating (1 A), forward voltage drop (1.1 V @ 1 A), reverse recovery time (1.8 µs), and reverse leakage current (5 µA @ 800 V).

Q: What is the difference between the main part and substitute?

A: The primary difference is packaging format. The main part uses an unspecified packaging configuration, while the substitute is supplied in Cut Tape (CT) format. Both use the DO-219AB Sub SMA package for surface mounting.

Q: Can the substitute part be used in place of the main part in existing designs?

A: Yes. The substitute part is a parametric equivalent with identical electrical characteristics, mechanical compatibility, and regulatory compliance. It can be used as a direct replacement in any application designed for the S1KL.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the main part and substitute are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the operating temperature range for these diodes?

A: Both parts operate across a junction temperature range of -55°C to 175°C, suitable for industrial and commercial applications.

Q: Does the Cut Tape packaging affect component performance?

A: No. Cut Tape packaging is a supply format that does not affect electrical performance, mechanical compatibility, or functional characteristics. It is used for automated assembly processes.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

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