RSFALHRUG Equivalent & Substitute Parts

Part Overview

The RSFALHRUG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Sub SMA package format. This component operates at 50V DC reverse voltage with 500mA average rectified current capability and features fast recovery characteristics with a 150ns reverse recovery time. The part is classified as Active product status and carries AEC-Q101 automotive qualification.

Substitute parts are necessary when the RSFALHRUG becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design revisions necessitate component standardization across product lines. The substitute parts listed maintain identical electrical performance characteristics while offering different packaging and availability options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	1.3 @ 500 mA	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5 @ 50 V	µA
Capacitance @ Vr, F	4 @ 4V, 1MHz	pF
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-219AB	-
Mounting Type	Surface Mount	-
Technology	Standard	-

Substitute Part Grouping Explanation

Substitution eligibility for the RSFALHRUG is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 50V
Current - Average Rectified (Io): 500mA
Voltage - Forward (Vf) (Max) @ If: 1.3V @ 500mA
Reverse Recovery Time (trr): 150ns
Current - Reverse Leakage @ Vr: 5µA @ 50V
Capacitance @ Vr, F: 4pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 150°C

Mechanical Equivalence Criteria:

Package / Case: DO-219AB
Mounting Type: Surface Mount
Supplier Device Package: Sub SMA

All substitute parts listed maintain complete electrical and mechanical equivalence to the RSFALHRUG. Variations exist only in packaging format (Tape & Reel versus Cut Tape) and product status designations, which do not affect functional interchangeability in circuit applications.

Parameter Comparison

Parameter	RSFALHRUG	RSFAL	RSFAL RVG
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V
Capacitance @ Vr, F	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz	4 pF @ 4V, 1MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB
Supplier Device Package	Sub SMA	Sub SMA	Sub SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Technology	Standard	Standard	Standard
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Packaging Format	-	Tape & Reel (TR)	Cut Tape (CT)
Product Status	Active	Not For New Designs	Active
Inventory (Pcs)	862	9885	7680

Engineering Selection Recommendations

RSFALHRUG (Primary Part): The RSFALHRUG is the recommended selection for new designs. This part carries Active product status, indicating full manufacturer support and continued availability. It is qualified to AEC-Q101 automotive standards and maintains ROHS3 compliance with REACH unaffected status. The part is suitable for applications requiring automotive-grade reliability and long-term supply assurance.

RSFAL (Tape & Reel Format): The RSFAL is electrically and mechanically equivalent to the RSFALHRUG but is designated as Not For New Designs. This part is available in Tape & Reel packaging format and carries significantly higher inventory (9885 units). Selection of RSFAL is appropriate only for legacy product support, field replacements, or manufacturing processes specifically requiring Tape & Reel format. The Not For New Designs status indicates reduced manufacturer commitment to this variant.

RSFAL RVG (Cut Tape Format): The RSFAL RVG is electrically and mechanically equivalent to the RSFALHRUG and maintains Active product status. This part is available in Cut Tape packaging format with substantial inventory (7680 units). The RSFAL RVG is suitable for applications where Cut Tape format is required by manufacturing processes or where the Active status and availability profile align with project requirements.

Compliance and Certification: All three parts maintain identical compliance profiles: ROHS3 compliant, REACH unaffected, and AEC-Q101 qualified. Selection between these parts should be based on product status requirements and packaging format compatibility with manufacturing equipment, not on compliance or electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can RSFAL be used as a direct replacement for RSFALHRUG in new designs?

A: RSFAL is electrically and mechanically equivalent to RSFALHRUG and functions identically in circuit applications. However, RSFAL carries Not For New Designs status, indicating the manufacturer does not recommend this variant for new product development. For new designs, RSFALHRUG or RSFAL RVG are the appropriate selections.

Q: What is the difference between RSFALHRUG, RSFAL, and RSFAL RVG?

A: All three parts are electrically identical with 50V reverse voltage, 500mA average rectified current, and 150ns reverse recovery time. The differences are: RSFALHRUG has unspecified packaging format and Active status; RSFAL is Tape & Reel format with Not For New Designs status; RSFAL RVG is Cut Tape format with Active status. All three use the DO-219AB package in Sub SMA configuration.

Q: Are there any electrical performance differences between these substitute parts?

A: No. All three parts have identical electrical specifications including forward voltage, reverse leakage current, capacitance, and operating temperature range. Substitution between these parts does not affect circuit performance.

Q: Which part should be selected for manufacturing equipment compatibility?

A: Selection depends on the specific packaging format required by manufacturing equipment. RSFALHRUG and RSFAL RVG are suitable for equipment handling Cut Tape or standard packaging. RSFAL is required if Tape & Reel format is mandated by the assembly process. Consult manufacturing process documentation for packaging format requirements.

Q: Are all three parts AEC-Q101 qualified?

A: Yes. RSFALHRUG, RSFAL, and RSFAL RVG all carry AEC-Q101 automotive qualification. All three parts are suitable for automotive applications requiring this certification level.

Q: What does Not For New Designs status mean for RSFAL?

A: Not For New Designs indicates the manufacturer does not recommend this part variant for new product development. RSFAL remains available for existing product support and field replacements but should not be selected for new circuit designs. RSFALHRUG and RSFAL RVG are the appropriate choices for new designs.

Q: Can these parts be used interchangeably in the same circuit board?

A: Yes, from an electrical and functional perspective. All three parts are electrically identical and operate identically in circuits. Interchangeability is limited only by physical packaging format compatibility with the specific circuit board assembly process and equipment.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) format provides individual component strips cut to specific lengths, suitable for manual handling or certain automated equipment. Tape & Reel (TR) format provides components on continuous tape wound on reels, optimized for high-volume automated assembly. Selection depends on manufacturing process requirements and equipment capabilities.

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