RS1KHE3_A/I Equivalent & Substitute Parts

Part Overview

The RS1KHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Active and meets AEC-Q101 automotive qualification standards. Substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is required for supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5	µA @ 800 V
Package / Case	DO-214AC, SMA	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-
Grade	Automotive	-
Qualification	AEC-Q101	-

Substitute Part Grouping Explanation

Substitution of the RS1KHE3_A/I is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC (SMA) surface mount
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A or lower
Reverse Recovery Time (trr): 500 ns or faster
Current - Reverse Leakage @ Vr: 5 µA @ 800 V or lower
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Parts are grouped into three categories based on substitution relationship:

Category 1: Parametric Equivalents (Vishay General Semiconductor) Parts RS1K-E3/5AT and RS1K-E3/61T match all electrical specifications and package requirements of the main part. These parts are direct functional replacements with identical performance characteristics.

Category 2: Manufacturer Recommended Alternatives (Micro Commercial Co & onsemi) Parts GS1K-LTP, GS1M-LTP, MRA4006T3G, and MRA4007T3G provide equivalent voltage and current ratings in the same package. These parts may have different recovery speeds, forward voltage characteristics, or reverse leakage specifications but remain functionally compatible within the application envelope.

Category 3: Parametric Equivalents (Alternative Manufacturers) Parts RS1K (Fairchild Semiconductor), RS1K_R1_00001 (Panjit International Inc.), and RS1KH (Taiwan Semiconductor Corporation) provide identical electrical performance and package specifications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	trr [ns]	Ir @ Vr [µA]	Package	Speed	Product Status
RS1KHE3_A/I	Vishay	800	1	1.3 @ 1	500	5 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active
RS1K-E3/5AT	Vishay	800	1	1.3 @ 1	500	5 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active
RS1K-E3/61T	Vishay	800	1	1.3 @ 1	500	5 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active
GS1K-LTP	Micro Commercial Co	800	1	1.0 @ 1	-	10 @ 800	DO-214AC (SMA)	Standard Recovery >500ns	Active
GS1M-LTP	Micro Commercial Co	1000	1	1.0 @ 1	-	10 @ 1000	DO-214AC (SMA)	Standard Recovery >500ns	Active
MRA4006T3G	onsemi	800	1	1.1 @ 1	-	10 @ 800	DO-214AC (SMA)	Standard Recovery >500ns	Not For New Designs
MRA4007T3G	onsemi	1000	1	1.1 @ 1	-	10 @ 1000	DO-214AC (SMA)	Standard Recovery >500ns	Not For New Designs
RS1K	Fairchild Semiconductor	800	1	1.3 @ 1	500	5 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active
RS1K_R1_00001	Panjit International Inc.	800	1	1.3 @ 1	500	1 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active
RS1KH	Taiwan Semiconductor Corporation	800	1	1.3 @ 1	500	5 @ 800	DO-214AC (SMA)	Fast Recovery ≤ 500ns	Active

Engineering Selection Recommendations

Tier 1: Direct Parametric Equivalents

RS1K-E3/5AT and RS1K-E3/61T are direct replacements for RS1KHE3_A/I. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and provide identical electrical specifications, recovery characteristics, and package configuration. RS1K-E3/61T offers significantly higher inventory availability (174,300 units) compared to RS1K-E3/5AT (7,378 units). Both parts maintain Active product status and full compliance with ROHS3 and REACH requirements.

Tier 2: Automotive-Grade Alternatives

RS1KH (Taiwan Semiconductor Corporation) is an automotive-qualified alternative with AEC-Q101 certification matching the main part. This part provides identical electrical performance and fast recovery characteristics. It is suitable for applications requiring automotive-grade components and maintains Active product status.

Tier 3: Parametric Equivalents from Alternative Manufacturers

RS1K (Fairchild Semiconductor) and RS1K_R1_00001 (Panjit International Inc.) provide equivalent electrical performance with fast recovery characteristics. RS1K_R1_00001 offers superior reverse leakage performance (1 µA @ 800 V versus 5 µA @ 800 V). Both parts are Active and ROHS3 compliant.

Tier 4: Manufacturer Recommended Alternatives with Performance Variations

GS1K-LTP (Micro Commercial Co) operates at 800 V with 1 A rating but features standard recovery speed (>500 ns) and higher forward voltage (1.0 V @ 1 A). This part is suitable for applications where recovery speed is not critical and lower forward voltage is beneficial.

MRA4006T3G (onsemi) provides 800 V / 1 A performance but carries "Not For New Designs" status. This part should be used only for legacy system maintenance or when existing designs require component continuity.

Tier 5: Higher Voltage Alternatives

GS1M-LTP and MRA4007T3G provide 1000 V reverse voltage rating with 1 A current capacity. These parts are suitable for applications requiring higher voltage margin but should only be selected when the additional voltage rating is necessary, as they introduce different electrical characteristics (standard recovery speed, higher forward voltage).

Compliance and Certification:

All recommended parts maintain ROHS3 compliance and REACH unaffected status. The main part and Tier 1-3 alternatives carry Active product status, ensuring long-term availability and support. Parts designated "Not For New Designs" should be avoided in new circuit designs.

Frequently Asked Questions (FAQ)

Q: Can RS1K-E3/61T be used as a direct replacement for RS1KHE3_A/I?

A: Yes. RS1K-E3/61T is a parametric equivalent manufactured by Vishay General Semiconductor - Diodes Division with identical voltage rating (800 V), current rating (1 A), forward voltage (1.3 V @ 1 A), recovery time (500 ns), and package configuration (DO-214AC SMA). Both parts are Active and ROHS3 compliant.

Q: What is the difference between fast recovery and standard recovery diodes in this product category?

A: The main part RS1KHE3_A/I features fast recovery with reverse recovery time (trr) of 500 ns or less. Parts such as GS1K-LTP feature standard recovery with trr greater than 500 ns. Fast recovery diodes are suitable for high-frequency switching applications, while standard recovery diodes are appropriate for lower-frequency rectification circuits. Selection depends on circuit operating frequency requirements.

Q: Is RS1KH suitable for automotive applications?

A: Yes. RS1KH is automotive-qualified with AEC-Q101 certification, matching the automotive grade of the main part RS1KHE3_A/I. Both parts are suitable for automotive circuit applications.

Q: Why is MRA4007T3G listed as a substitute if it has a higher voltage rating (1000 V)?

A: MRA4007T3G is listed as a manufacturer-recommended alternative because it maintains the same 1 A current rating and DO-214AC (SMA) package. The higher voltage rating (1000 V versus 800 V) provides additional design margin but introduces different electrical characteristics including standard recovery speed and higher forward voltage (1.1 V @ 1 A). This part should be selected only when the higher voltage rating is required by the application.

Q: What is the significance of the "Not For New Designs" status on MRA4006T3G and MRA4007T3G?

A: "Not For New Designs" indicates that the manufacturer (onsemi) is not recommending these parts for new circuit designs. These parts should be used only for maintenance of existing systems or when component continuity with legacy designs is required. For new designs, select from parts with Active product status.

Q: Are all substitute parts available in the same packaging format?

A: All listed substitute parts are available in DO-214AC (SMA) surface mount package configuration, matching the main part. Packaging format is consistent across all alternatives, ensuring compatibility with existing PCB layouts and assembly processes.

Q: What is the difference between RS1K-E3/5AT and RS1K-E3/61T?

A: Both parts are parametric equivalents with identical electrical specifications. The primary difference is inventory availability: RS1K-E3/61T has significantly higher stock (174,300 units) compared to RS1K-E3/5AT (7,378 units). Both parts are manufactured by Vishay and are suitable for direct substitution.

Q: Can GS1K-LTP be used in applications requiring fast recovery characteristics?

A: No. GS1K-LTP features standard recovery speed (>500 ns) compared to the fast recovery specification (≤500 ns) of the main part. Applications requiring fast recovery characteristics should use RS1K-E3/5AT, RS1K-E3/61T, RS1K, RS1K_R1_00001, or RS1KH.

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

A: All listed parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts do not require special moisture control during storage or handling.

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