RSFKL RUG Equivalent & Substitute Parts

Part Overview

The RSFKL RUG is a general-purpose rectifier diode rated for 800 V DC reverse voltage with 500 mA average rectified current in a surface mount Sub SMA package. This component is classified as an active product and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, supply chain alternatives, or specific packaging preferences.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	800 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA
Reverse Recovery Time (trr)	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V
Capacitance @ Vr, F	4 pF @ 4 V, 1 MHz
Mounting Type	Surface Mount
Package / Case	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RSFKL RUG are qualified based on the following criteria:

Electrical Parameters (Must Match or Exceed):

Voltage - DC Reverse (Vr) (Max): 800 V minimum
Current - Average Rectified (Io): 500 mA minimum
Operating Temperature Range: -55°C to 150°C minimum
Package / Case: DO-219AB (mechanical and electrical compatibility)

Compliance & Environmental Requirements:

RoHS3 Compliant status
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status
Active product status

The three substitute parts listed (RS07K-GS08, RS07K-GS18, RS07K-HM3-08) meet all electrical and mechanical requirements. Differences exist in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and automotive qualification (AEC-Q101), which do not affect functional equivalence but may influence procurement and application suitability.

Parameter Comparison

Parameter	RSFKL RUG	RS07K-GS08	RS07K-GS18	RS07K-HM3-08
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V	800 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	500 ns	300 ns	300 ns	300 ns
Current - Reverse Leakage @ Vr	5 µA @ 800 V	2 µA @ 800 V	2 µA @ 800 V	2 µA @ 800 V
Capacitance @ Vr, F	4 pF @ 4 V, 1 MHz	4 pF @ 4 V, 1 MHz	4 pF @ 4 V, 1 MHz	4 pF @ 4 V, 1 MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts (RS07K-GS08, RS07K-GS18, RS07K-HM3-08) are functionally equivalent to the RSFKL RUG for applications requiring 800 V, 500 mA general-purpose rectification in DO-219AB surface mount packages.

Selection Criteria by Application:

RS07K-GS08 (Cut Tape & Digi-Reel®): Suitable for standard production environments where cut tape packaging is preferred. Includes AEC-Q101 automotive qualification.

RS07K-GS18 (Tape & Reel): Suitable for high-volume automated assembly processes. Includes AEC-Q101 automotive qualification. Largest available inventory (50,802 pcs).

RS07K-HM3-08 (Cut Tape & Digi-Reel®, eSMP® Series): Suitable for applications requiring eSMP® series designation. Includes AEC-Q101 automotive qualification.

All substitute parts demonstrate superior reverse recovery time (300 ns versus 500 ns) and lower reverse leakage current (2 µA versus 5 µA), representing improved performance characteristics. All parts maintain RoHS3 compliance, MSL 1 rating, and active product status.

Frequently Asked Questions (FAQ)

Q: Can RS07K-GS08, RS07K-GS18, and RS07K-HM3-08 be used interchangeably with RSFKL RUG?

A: Yes. All three parts meet the core electrical requirements: 800 V reverse voltage, 500 mA average rectified current, DO-219AB package, -55°C to 150°C operating temperature range, and RoHS3 compliance. Differences in reverse recovery time (300 ns versus 500 ns) and reverse leakage current (2 µA versus 5 µA) represent performance improvements in the substitute parts.

Q: What is the difference between the three substitute parts?

A: The primary differences are packaging format and inventory availability. RS07K-GS08 and RS07K-HM3-08 are supplied in Cut Tape & Digi-Reel® format, while RS07K-GS18 is supplied in Tape & Reel format. RS07K-HM3-08 is designated as part of the eSMP® series. All three include AEC-Q101 automotive qualification.

Q: Are the substitute parts suitable for automotive applications?

A: Yes. All three substitute parts (RS07K-GS08, RS07K-GS18, RS07K-HM3-08) carry AEC-Q101 qualification, indicating suitability for automotive applications. The RSFKL RUG does not specify automotive qualification.

Q: Does the improved reverse recovery time in substitute parts affect circuit design?

A: The substitute parts feature 300 ns reverse recovery time compared to 500 ns in the RSFKL RUG. This represents improved switching performance and lower switching losses. No circuit redesign is required for substitution; the improved performance is compatible with existing designs.

Q: What packaging considerations apply when selecting a substitute?

A: All parts use DO-219AB surface mount packages with identical mechanical footprints. Selection between Cut Tape & Digi-Reel® and Tape & Reel formats depends on assembly process requirements and procurement preferences. MSL 1 (Unlimited) rating applies to all parts, indicating no moisture sensitivity restrictions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts and the RSFKL RUG are RoHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

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