GS1KHE3-LTP Equivalent & Substitute Parts

Part Overview

The GS1KHE3-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 800 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as obsolete, indicating discontinuation from active production. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this diode specification remains applicable.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A
Reverse Recovery Time (trr)	2 µs
Current - Reverse Leakage @ Vr	5 µA @ 1000 V
Capacitance @ Vr, F	15 pF @ 4 V, 1 MHz
Package / Case	DO-214AC (SMA)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
Technology	Standard

Substitute Part Grouping Explanation

Substitution of the GS1KHE3-LTP is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Package / Case: DO-214AC (SMA) surface mount configuration
Mounting Type: Surface mount
Current - Average Rectified (Io): 1 A minimum
Voltage - DC Reverse (Vr) (Max): Equal to or greater than 800 V
Operating Temperature Range: -55°C ~ 150°C minimum
Reverse Recovery Time (trr): 2 µs standard recovery classification
Voltage - Forward (Vf) (Max) @ If: 1 V @ 1 A or lower

The GS1MHE3-LTP qualifies as a direct substitute because it maintains identical package geometry, mounting type, current rating, forward voltage characteristics, and operating temperature range. The substitute part exceeds the reverse voltage specification (1000 V versus 800 V), which is acceptable in substitution applications where higher voltage ratings provide enhanced design margin without functional degradation.

Parameter Comparison

Parameter	GS1KHE3-LTP (Main Part)	GS1MHE3-LTP (Substitute)	Compatibility
Voltage - DC Reverse (Vr) (Max)	800 V	1000 V	Compatible - Higher rating acceptable
Current - Average Rectified (Io)	1 A	1 A	Identical
Voltage - Forward (Vf) (Max) @ If	1 V @ 1 A	1 V @ 1 A	Identical
Reverse Recovery Time (trr)	2 µs	2 µs	Identical
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	Identical
Capacitance @ Vr, F	15 pF @ 4 V, 1 MHz	15 pF @ 4 V, 1 MHz	Identical
Package / Case	DO-214AC (SMA)	DO-214AC (SMA)	Identical
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Product Status	Obsolete	Active	Substitute is in active production

Engineering Selection Recommendations

The GS1MHE3-LTP is the manufacturer-recommended substitute for the obsolete GS1KHE3-LTP. Selection of this substitute is based on the following engineering factors:

Product Status: The GS1MHE3-LTP maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete GS1KHE3-LTP.

Compliance and Certification: The GS1MHE3-LTP carries AEC-Q101 automotive qualification and RoHS3 compliance, providing enhanced quality assurance and regulatory alignment for applications requiring these certifications.

Electrical Equivalence: All critical electrical parameters remain identical or superior. The increased reverse voltage rating (1000 V versus 800 V) provides additional design margin without introducing functional incompatibility.

Package and Mounting Compatibility: Identical DO-214AC (SMA) surface mount package ensures direct PCB footprint compatibility and assembly process alignment.

Inventory Availability: The GS1MHE3-LTP is available in significantly higher quantities (5037 Pcs) compared to the obsolete part, supporting both immediate procurement and long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can the GS1MHE3-LTP directly replace the GS1KHE3-LTP in existing designs?

A: Yes. The GS1MHE3-LTP is electrically and mechanically compatible with the GS1KHE3-LTP. Both components share identical current ratings, forward voltage characteristics, reverse recovery time, and DO-214AC surface mount package geometry. No circuit modifications or PCB redesign is required.

Q: Why does the substitute part have a higher reverse voltage rating (1000 V versus 800 V)?

A: Higher reverse voltage ratings are acceptable in substitution applications. The 1000 V rating of the GS1MHE3-LTP provides additional design margin and does not degrade performance in circuits designed for 800 V operation. The component will function identically within the original 800 V specification.

Q: Are there any thermal or temperature-related differences between these parts?

A: No. Both the GS1KHE3-LTP and GS1MHE3-LTP operate across the identical temperature range of -55°C to 150°C junction temperature, ensuring equivalent thermal performance and reliability.

Q: What is the significance of the GS1MHE3-LTP's AEC-Q101 qualification?

A: AEC-Q101 qualification indicates the component meets automotive industry reliability and quality standards. This certification is beneficial for applications requiring enhanced quality assurance, though it does not affect electrical or mechanical compatibility with the original part.

Q: Is the packaging format different between these parts?

A: The GS1MHE3-LTP is supplied in Tape & Reel (TR) format with Moisture Sensitivity Level 1 (Unlimited), compared to the original part's unspecified packaging. Both components use the identical DO-214AC (SMA) surface mount package. Tape & Reel format is standard for high-volume surface mount assembly and does not affect component performance.

Q: Are both parts REACH compliant?

A: Yes. Both the GS1KHE3-LTP and GS1MHE3-LTP are classified as REACH Unaffected, indicating compliance with REACH regulations.

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