RSFALHRHG Equivalent & Substitute Parts

Part Overview

The RSFALHRHG is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50V DC reverse voltage and 500mA average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and meets automotive-grade qualification standards under AEC-Q101.

Substitute parts become necessary when the primary part number reaches end-of-life status, when specific packaging formats are required for manufacturing processes, or when inventory constraints necessitate alternative sourcing from the same parametric family. The RSFALHRHG maintains full electrical and mechanical compatibility with designated substitute part numbers within the RSFAL series.

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	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution within the RSFALHRHG family is determined by strict equivalence across all critical electrical parameters. The following parameters must remain identical for parts to be considered direct substitutes:

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
Package / Case: DO-219AB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C

Substitute parts within this family differ only in packaging format (Tape & Reel or Cut Tape) and product status designation. All substitute parts maintain identical electrical performance and mechanical compatibility with the primary part number RSFALHRHG.

Parameter Comparison

Parameter	RSFALHRHG	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
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-219AB	DO-219AB	DO-219AB
Supplier Device Package	Sub SMA	Sub SMA	Sub SMA
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Active	Not For New Designs	Active
Packaging Format	—	Tape & Reel (TR)	Cut Tape (CT)
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

Engineering Selection Recommendations

RSFALHRHG (Primary Selection)

The RSFALHRHG is the recommended selection for new designs and applications requiring active product status. This part number carries Active product status designation, indicating full manufacturer support and continued availability. It meets all automotive-grade requirements through AEC-Q101 qualification and maintains ROHS3 compliance with REACH Unaffected status.

RSFAL RVG (Preferred Substitute)

The RSFAL RVG serves as the primary substitute when RSFALHRHG availability is constrained. This part maintains Active product status and provides identical electrical and mechanical specifications. The Cut Tape (CT) packaging format accommodates manual assembly and lower-volume production requirements. RSFAL RVG is suitable for direct replacement in existing designs without circuit modification.

RSFAL (Secondary Substitute)

The RSFAL part number is available as a secondary substitute option with higher inventory levels (9885 Pcs). However, this part carries Not For New Designs product status, indicating limited manufacturer support for future development. RSFAL is suitable only for sustaining production of existing designs or applications where long-term availability is not a primary concern. The Tape & Reel (TR) packaging format is optimized for high-volume automated assembly processes.

All three part numbers maintain identical compliance certifications, thermal operating ranges, and electrical performance characteristics. Selection between active and not-for-new-designs variants depends on application lifecycle requirements and manufacturing process compatibility.

Frequently Asked Questions (FAQ)

Q: Can RSFAL RVG be used as a direct replacement for RSFALHRHG in existing circuit designs?

A: Yes. RSFAL RVG maintains identical electrical parameters, package type (DO-219AB), and mounting configuration (Surface Mount Sub SMA). No circuit modifications are required for substitution. The only difference is packaging format (Cut Tape versus standard packaging).

Q: What is the significance of "Not For New Designs" status on the RSFAL part number?

A: This designation indicates the manufacturer does not recommend this part for new product development. While RSFAL remains electrically and mechanically equivalent, it may have limited future availability or manufacturer support. For new designs, RSFALHRHG or RSFAL RVG are preferred selections.

Q: Are there electrical performance differences between RSFALHRHG, RSFAL, and RSFAL RVG?

A: No. All three part numbers are parametrically identical across all electrical specifications including reverse voltage (50V), forward current (500mA), forward voltage drop (1.3V @ 500mA), reverse recovery time (150ns), and reverse leakage current (5µA @ 50V).

Q: What packaging formats are available for these substitute parts?

A: RSFALHRHG is supplied in standard packaging. RSFAL is supplied in Tape & Reel (TR) format for high-volume automated assembly. RSFAL RVG is supplied in Cut Tape (CT) format for manual assembly and lower-volume applications. All three use the same DO-219AB package case and Sub SMA supplier device package.

Q: Do all substitute parts meet automotive qualification requirements?

A: Yes. RSFALHRHG, RSFAL, and RSFAL RVG all carry Automotive grade classification and AEC-Q101 qualification. All parts are ROHS3 compliant and REACH Unaffected, meeting automotive industry compliance standards.

Q: What is the inventory status for each substitute part?

A: RSFALHRHG has 913 Pcs in stock. RSFAL has 9885 Pcs in stock. RSFAL RVG has 7680 Pcs in stock. Inventory levels should be verified at time of procurement as stock quantities change.

Q: Can RSFAL be used in new automotive designs?

A: While RSFAL is electrically and mechanically equivalent, its "Not For New Designs" status indicates limited manufacturer support for new development. For automotive applications requiring long-term availability and manufacturer support, RSFALHRHG or RSFAL RVG are the appropriate selections.

Q: Are there temperature operating range differences between substitute parts?

A: No. All three part numbers operate across the identical junction temperature range of -55°C to 150°C, suitable for automotive and industrial applications.

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