RSFALHRQG Equivalent & Substitute Parts

Part Overview

The RSFALHRQG 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 50 V DC reverse voltage with a 500 mA average rectified current rating, featuring fast recovery characteristics suitable for standard rectification circuits.

The RSFALHRQG maintains Active product status and carries AEC-Q101 automotive qualification. Alternative part numbers are available due to packaging format variations and inventory considerations across different distribution channels. Substitute parts maintain identical electrical performance while offering different packaging configurations or alternative sourcing 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	-
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	-

Substitute Part Grouping Explanation

Substitution eligibility for the RSFALHRQG is determined by electrical parameter equivalence across the following critical specifications:

Electrical Equivalence Criteria:

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

Mechanical Compatibility Criteria:

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

All substitute parts listed maintain identical electrical characteristics and mechanical compatibility with the RSFALHRQG. Differences exist only in packaging format (Tape & Reel versus Cut Tape) and product status designations, which do not affect functional performance in equivalent circuit applications.

Parameter Comparison

Parameter	RSFALHRQG	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
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
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Package / Case	DO-219AB	DO-219AB	DO-219AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	Sub SMA	Sub SMA	Sub SMA
Technology	Standard	Standard	Standard
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
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
ECCN	EAR99	EAR99	EAR99
HTSUS	8541.10.0070	8541.10.0070	8541.10.0070
Product Status	Active	Not For New Designs	Active
Packaging Format	-	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

RSFALHRQG (Primary Reference Part)

The RSFALHRQG is designated as Active product status and carries AEC-Q101 automotive qualification. This part number is suitable for new design implementations and applications requiring automotive-grade reliability. Current inventory of 874 pieces supports immediate procurement for production requirements.

RSFAL RVG (Preferred Substitute)

The RSFAL RVG maintains Active product status and is electrically and mechanically identical to the RSFALHRQG. This part is supplied in Cut Tape (CT) packaging format. Inventory availability of 7,680 pieces provides robust supply chain support. This substitute is appropriate for applications where Cut Tape packaging is compatible with assembly processes.

RSFAL (Alternative Substitute)

The RSFAL is designated as Not For New Designs and is supplied in Tape & Reel (TR) packaging format. This part maintains complete electrical and mechanical equivalence to the RSFALHRQG. Inventory of 9,885 pieces is available. This substitute is suitable for legacy system maintenance, repair operations, and applications where existing designs already incorporate this part number.

All three part numbers share identical electrical performance, mechanical compatibility, compliance certifications, and regulatory status. Selection between these options depends on packaging format requirements and product lifecycle considerations for the target application.

Frequently Asked Questions (FAQ)

Q: Are RSFALHRQG, RSFAL, and RSFAL RVG electrically interchangeable?

A: Yes. All three part numbers are electrically identical, sharing the same voltage rating (50 V), current rating (500 mA), forward voltage drop (1.3 V @ 500 mA), reverse recovery time (150 ns), and all other electrical specifications. They are direct functional equivalents in circuit applications.

Q: What is the difference between these part numbers?

A: The primary differences are packaging format and product status. RSFALHRQG and RSFAL RVG are Active products, while RSFAL is designated Not For New Designs. RSFALHRQG is supplied in standard packaging, RSFAL RVG in Cut Tape (CT) format, and RSFAL in Tape & Reel (TR) format.

Q: Can I use RSFAL in a new design?

A: RSFAL is designated Not For New Designs. For new design implementations, use RSFALHRQG or RSFAL RVG, both of which carry Active product status.

Q: Are the mechanical packages identical?

A: Yes. All three parts use the DO-219AB package in Sub SMA supplier format with surface mount mounting type. They are mechanically compatible and can be used interchangeably on the same PCB layout.

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

A: Cut Tape (CT) packaging provides individual strips of components, suitable for lower-volume assembly or manual handling. Tape & Reel (TR) packaging provides components on continuous reels, optimized for high-speed automated assembly equipment. Both formats contain the same component.

Q: Do all three parts have the same compliance certifications?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, carry ECCN EAR99 classification, and share the same HTSUS code (8541.10.0070). Moisture sensitivity level is 1 (Unlimited) for all variants.

Q: Which part should I select for automotive applications?

A: All three parts carry AEC-Q101 automotive qualification. For new automotive designs, RSFALHRQG or RSFAL RVG are appropriate. For legacy automotive system maintenance, RSFAL is available.

Q: What is the operating temperature range?

A: All three parts operate across a junction temperature range of -55°C to 150°C, suitable for industrial and automotive temperature environments.

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