RSFAL RFG Equivalent & Substitute Parts

Part Overview

The RSFAL RFG 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 RSFAL RFG is classified as Active product status, indicating continued availability for new designs. Substitute parts become necessary when specific packaging formats, lead times, or inventory constraints require alternative configurations of the same electrical specification.

Substiute Parts

RSFAL RFG

Taiwan Semiconductor CorporationIn Stock: 763RSFAL RFG Datasheet

Current PartRFQ

RSFAL

Taiwan Semiconductor CorporationIn Stock: 9896RSFAL Datasheet

Parametric EquivalentRFQ

RSFAL RVG

Taiwan Semiconductor CorporationIn Stock: 7779RSFAL RVG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RSFAL RFG are determined by electrical parameter equivalence and mechanical compatibility. All substitute parts must maintain identical specifications across the following critical parameters:

• 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
• Package / Case: DO-219AB
• Mounting Type: Surface Mount

Substitute parts may differ in packaging format (Tape & Reel, Cut Tape, or bulk) and product status classification, provided all electrical and thermal characteristics remain unchanged. The base product number RSFAL identifies the core electrical specification across all variants.

Parameter Comparison

Engineering Selection Recommendations

RSFAL RFG (Primary Selection)

The RSFAL RFG is the recommended selection for new designs. This part maintains Active product status, ensuring long-term availability and continued manufacturer support. It is supplied in bulk packaging format and carries full ROHS3 compliance with REACH Unaffected status.

RSFAL RVG (Preferred Substitute)

The RSFAL RVG is the primary substitute option, offering identical electrical specifications and Active product status. This variant is supplied in Cut Tape (CT) packaging format, suitable for automated assembly processes requiring individual component feeding. Use this part when Cut Tape packaging is required for production workflows.

RSFAL (Legacy Substitute)

The RSFAL is available as a secondary substitute option, supplied in Tape & Reel (TR) packaging format. This part is classified as Not For New Designs, indicating it remains available for existing production lines and legacy applications but should not be selected for new circuit designs. Use this part only when Tape & Reel packaging is specifically required and new design status is not a constraint.

All three variants maintain identical electrical performance, thermal characteristics, and regulatory compliance across the specified operating range.

Frequently Asked Questions (FAQ)

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

A: Yes. The RSFAL RVG is electrically and mechanically equivalent to the RSFAL RFG. Both parts share identical voltage ratings (50 V), current ratings (500 mA), forward voltage characteristics (1.3 V @ 500 mA), reverse recovery time (150 ns), and operating temperature range (-55°C to 150°C). The primary difference is packaging format: RSFAL RVG is supplied in Cut Tape format while RSFAL RFG is supplied in bulk. Both use the DO-219AB package (Sub SMA).

Q: What is the difference between the packaging formats offered?

A: The RSFAL RFG is supplied in bulk packaging. The RSFAL RVG is supplied in Cut Tape (CT) format, suitable for pick-and-place assembly equipment. The RSFAL is supplied in Tape & Reel (TR) format, also suitable for automated assembly but with different reel specifications. All three variants use the same DO-219AB physical package.

Q: Why is RSFAL marked as "Not For New Designs"?

A: The RSFAL carries a "Not For New Designs" product status classification. This designation indicates the part remains available for existing production lines and legacy applications but should not be selected for new circuit development. For new designs, select either RSFAL RFG or RSFAL RVG, both of which carry Active product status.

Q: Are all three parts ROHS3 compliant?

A: Yes. All three variants—RSFAL RFG, RSFAL RVG, and RSFAL—are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status. They meet all applicable environmental and regulatory requirements.

Q: What determines whether a part can substitute for RSFAL RFG?

A: Substitution is determined by electrical parameter equivalence. All substitute parts must maintain: 50 V reverse voltage rating, 500 mA average rectified current, 1.3 V forward voltage at 500 mA, 150 ns reverse recovery time, 5 µA reverse leakage current at 50 V, 4 pF capacitance at 4V/1MHz, -55°C to 150°C operating temperature range, and DO-219AB package in Sub SMA format with surface mount mounting type. Packaging format variations (bulk, Cut Tape, Tape & Reel) do not affect substitution eligibility.

Q: Can RSFAL RFG be used in high-frequency switching applications?

A: The RSFAL RFG is specified as a fast recovery diode with 150 ns reverse recovery time and fast recovery characteristics for currents greater than 200 mA. This specification applies to the component's inherent switching speed. Application suitability depends on circuit design requirements beyond component electrical ratings.

Q: What is the inventory status for each variant?

A: RSFAL RFG has 726 pieces in stock. RSFAL has 9885 pieces in stock. RSFAL RVG has 7680 pieces in stock. All inventory is listed as New Original.