S2KHE3_A/I Equivalent & Substitute Parts

Part Overview

The S2KHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 800 V DC reverse voltage and 1.5 A average rectified current in a DO-214AA (SMB) surface mount package. This component is classified as Active and carries AEC-Q101 automotive qualification. Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the DO-214AA package form factor.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5	V @ A
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 800 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the S2KHE3_A/I are classified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V
Current - Average Rectified (Io): 1.5 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Parametric Equivalents (S2K-E3/52T, S2KHE3_A/H) match all primary criteria and are manufactured by Vishay General Semiconductor - Diodes Division. These parts differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel).

Manufacturer Recommended Alternatives (RS1KB-13-F, RS2K-13-F) are manufactured by Diodes Incorporated and meet the 800 V voltage and DO-214AA package requirements. RS2K-13-F matches the 1.5 A current rating. RS1KB-13-F is rated for 1 A and represents a lower-current alternative.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	trr [µs]	Ir @ Vr [µA @ V]	Package	Packaging Format	Status
S2KHE3_A/I	Vishay	800	1.5	1.15 @ 1.5	2	1 @ 800	DO-214AA, SMB	Tape & Reel (TR)	Active
S2KHE3_A/H	Vishay	800	1.5	1.15 @ 1.5	2	1 @ 800	DO-214AA, SMB	Tape & Reel (TR)	Active
S2K-E3/52T	Vishay	800	1.5	1.15 @ 1.5	2	1 @ 800	DO-214AA, SMB	Cut Tape (CT) & Digi-Reel®	Active
RS2K-13-F	Diodes Incorporated	800	1.5	1.3 @ 1.5	0.5	5 @ 800	DO-214AA, SMB	Tape & Reel (TR)	Active
RS1KB-13-F	Diodes Incorporated	800	1	1.3 @ 1	0.5	5 @ 800	DO-214AA, SMB	Tape & Reel (TR)	Active

Engineering Selection Recommendations

Parametric Equivalents (S2KHE3_A/H, S2K-E3/52T): These Vishay parts are direct electrical equivalents to the S2KHE3_A/I. Selection between them depends on packaging format requirements. S2KHE3_A/H is supplied in Tape & Reel format identical to the main part. S2K-E3/52T is supplied in Cut Tape & Digi-Reel® format and is suitable for applications where alternative packaging is acceptable. Both maintain identical electrical performance and AEC-Q101 automotive qualification.

Manufacturer Recommended Alternative (RS2K-13-F): The RS2K-13-F from Diodes Incorporated provides full electrical compatibility at the 1.5 A current rating and 800 V voltage specification. This part exhibits faster recovery characteristics (trr = 0.5 µs versus 2 µs) and higher reverse leakage current (5 µA versus 1 µA). Selection of this part is appropriate when fast recovery performance is beneficial or when Diodes Incorporated supply chain availability is preferred.

Lower-Current Alternative (RS1KB-13-F): The RS1KB-13-F is rated for 1 A average rectified current and is suitable only for applications where the circuit design permits reduced current capacity. This part shares the 800 V voltage rating and DO-214AA package with the main part but does not provide full current equivalence.

Frequently Asked Questions (FAQ)

Q: Can S2K-E3/52T be used as a direct replacement for S2KHE3_A/I? A: Yes. S2K-E3/52T is a parametric equivalent with identical electrical specifications. The difference is packaging format: S2K-E3/52T uses Cut Tape & Digi-Reel® while S2KHE3_A/I uses Tape & Reel. Both are suitable for surface mount assembly in DO-214AA packages.

Q: What is the difference between S2KHE3_A/H and S2KHE3_A/I? A: Both parts are manufactured by Vishay and share identical electrical parameters. The suffix designates different packaging or qualification batches. Both are Active status and AEC-Q101 qualified.

Q: Can RS2K-13-F replace S2KHE3_A/I in all applications? A: RS2K-13-F meets the 800 V and 1.5 A specifications and uses the same DO-214AA package. However, it exhibits different recovery characteristics (0.5 µs versus 2 µs) and higher reverse leakage (5 µA versus 1 µA). Substitution is valid where these parameter differences do not affect circuit performance.

Q: Why would RS1KB-13-F not be suitable as a substitute? A: RS1KB-13-F is rated for 1 A average rectified current, which is below the 1.5 A specification of S2KHE3_A/I. This part is suitable only for circuits designed for lower current operation.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 Compliant status and are suitable for applications requiring RoHS compliance.

Q: What is the operating temperature range for these parts? A: S2KHE3_A/I, S2KHE3_A/H, and S2K-E3/52T operate from -55°C to 150°C junction temperature. RS1KB-13-F and RS2K-13-F operate from -65°C to 150°C, providing a wider low-temperature range.

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