Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation RS1GF-T

Name: RS1GF-T
Brand: Taiwan Semiconductor Corporation
SKU: RS1GF-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: RS1GF-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-221AC, SMA Flat Leads

Datasheet:: RS1GF-T.pdf

Description:: 150NS, 1A, 400V, FAST RECOVERY R

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,500

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

RS1GF-T from Taiwan Semiconductor is a 1A, 400V fast recovery surface-mount rectifier in SMAF package, featuring 150ns reverse recovery time, 1.00V typical forward voltage at 1.0A/25°C, and 30A surge current capability; used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the RS1GF-T datasheet, RS1GF-T pinout, RS1GF-T application, or RS1GF-T equivalent, key selection criteria include V_RRM = 400V, I_F = 1A, t_rr = 150ns, thermal resistance R_θJL = 15°C/W, and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

This discrete diode employs a glass-passivated silicon junction optimized for fast switching in high-frequency SMPS topologies. Its 150ns reverse recovery time and low 9pF junction capacitance minimize switching losses and EMI generation during turn-off transitions.

The device operates across –55°C to +150°C junction temperature range with 5µA max reverse leakage at 25°C and 200µA at 125°C, supporting stable performance in thermally constrained PCB layouts using standard 5mm × 5mm copper pads.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/clamp circuits
I_F	1 A - Continuous forward current rating; determines steady-state conduction capability
t_rr	150 ns - Reverse recovery time; critical for minimizing switching loss in >100kHz converters
V_F @ 1A/25°C	1.00 V (typ), 1.30 V (max) - Forward voltage drop; directly impacts conduction loss and thermal design
R_θJL	15 °C/W - Junction-to-lead thermal resistance; enables direct heatsinking via PCB copper pour
I_FSM	30 A @ 8.3ms - Non-repetitive surge current; supports inrush and fault transient handling
C_J	9 pF @ 1MHz, 4V - Junction capacitance; affects high-frequency noise coupling and snubber design

Pinout & Package

Package: SMAF (Surface Mount Axial Flat), molded UL 94V-0 compound, matte tin-plated leads, cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential side of bridge or output return path; requires adequate copper area for thermal dissipation
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to positive rail or switch node; must withstand full V_RRM during off-state

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance without hermetic sealing
Moisture sensitivity level 1	Eliminates bake requirements prior to reflow; compatible with standard SMT assembly lines
Low reverse leakage (≤5 µA @ 25°C)	Reduces standby power loss in high-impedance bias networks and hold-up circuits
J-STD-002 solderable terminals	Ensures robust wetting and joint integrity under lead-free reflow profiles
Halogen-free per IEC 61249-2-21	Meets environmental compliance for automotive and industrial end-equipment

Applications

DC-DC Converter Secondary Rectification	Switching Mode Inverter Output Stage
Use Scenario: High-efficiency isolated buck-boost converter operating at 200–500 kHz with synchronous or diode rectification. IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during transformer secondary half-cycle; handles 1A average output current. Use Value: 150ns t_rr minimizes reverse recovery charge Q_rr, reducing switching loss and enabling higher frequency operation than standard PN diodes.	Use Scenario: Single-phase H-bridge inverter driving inductive motor loads with regenerative braking. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during PWM dead-time intervals. Use Value: 30A I_FSM withstands peak regeneration currents; 400V V_RRM accommodates bus voltage plus margin in 24–48V systems.
AC-DC Adapter Output Rectification	Industrial PLC Power Supply Input Stage
Use Scenario: Compact 12V/1A wall adapter using flyback topology with minimal heatsink area. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC. Use Value: 1.00V V_F at 1A reduces conduction loss; R_θJL = 15°C/W allows thermal management via 5mm × 5mm Cu pad without external heatsink.	Use Scenario: DIN-rail mounted programmable logic controller requiring continuous 24V DC input with surge immunity. IC Role / Device Role / Timing Role: Input stage rectifier in front-end bridge configuration handling line transients and brownouts. Use Value: –55°C to +150°C operating range ensures functionality across extended industrial ambient temperatures; 200µA IR max at 125°C maintains low leakage in hot enclosures.

DC-DC Converter Secondary Rectification

Switching Mode Inverter Output Stage

Use Scenario: High-efficiency isolated buck-boost converter operating at 200–500 kHz with synchronous or diode rectification.

IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during transformer secondary half-cycle; handles 1A average output current.

Use Value: 150ns t_rr minimizes reverse recovery charge Q_rr, reducing switching loss and enabling higher frequency operation than standard PN diodes.

Use Scenario: Single-phase H-bridge inverter driving inductive motor loads with regenerative braking.

IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during PWM dead-time intervals.

Use Value: 30A I_FSM withstands peak regeneration currents; 400V V_RRM accommodates bus voltage plus margin in 24–48V systems.

AC-DC Adapter Output Rectification

Industrial PLC Power Supply Input Stage

Use Scenario: Compact 12V/1A wall adapter using flyback topology with minimal heatsink area.

IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC.

Use Value: 1.00V V_F at 1A reduces conduction loss; R_θJL = 15°C/W allows thermal management via 5mm × 5mm Cu pad without external heatsink.

Use Scenario: DIN-rail mounted programmable logic controller requiring continuous 24V DC input with surge immunity.

IC Role / Device Role / Timing Role: Input stage rectifier in front-end bridge configuration handling line transients and brownouts.

Use Value: –55°C to +150°C operating range ensures functionality across extended industrial ambient temperatures; 200µA IR max at 125°C maintains low leakage in hot enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast recovery rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R04U	V_RRM = 400V, t_rr = 35ns, I_F = 1A, SMA package (not SMAF), R_θJA = 100°C/W	Lower t_rr improves high-frequency efficiency but requires tighter layout due to faster edge rates	Preferred where <50ns recovery is required; verify SMA vs SMAF footprint compatibility
ON Semi MUR1040	V_RRM = 400V, t_rr = 60ns, I_F = 1A, DO-41 through-hole, R_θJA = 75°C/W	Through-hole mounting limits automated assembly and increases board space vs SMAF SMT	Used when legacy through-hole design or higher mechanical robustness is prioritized over density

Compared with STTH1R04U and MUR1040, RS1GF-T offers balanced trade-offs: moderate 150ns t_rr with industry-standard SMAF footprint, lowest thermal resistance among SMT alternatives (R_θJL = 15°C/W), and J-STD-020 Level 1 moisture handling for zero-bake production.

Availability

RS1GF-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial PLC power supplies requiring stable component supply and RoHS-compliant sourcing.

Supply support for RS1GF-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial and consumer markets since 1979.

The RS1x series targets cost-sensitive, high-volume power conversion applications with standardized SMT rectifiers optimized for automated assembly, thermal efficiency, and environmental compliance.

FAQ

What is the maximum junction temperature rating for RS1GF-T?

The RS1GF-T has a maximum junction temperature (T_J) rating of +150°C, with operational range spanning –55°C to +150°C. This wide thermal envelope supports deployment in enclosed industrial environments and high-ambient-temperature applications. The device's R_θJL of 15°C/W allows effective heat transfer to PCB copper, making RS1GF-T suitable for thermally demanding layouts without additional heatsinking.

Does RS1GF-T meet RoHS and halogen-free requirements?

Yes, RS1GF-T is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and all terminations use matte tin plating. These attributes make RS1GF-T acceptable for automotive, medical, and industrial equipment subject to strict environmental regulations. Documentation confirming compliance is available upon request for RS1GF-T.

What is the reverse recovery time (t_rr) specification for RS1GF-T?

The RS1GF-T has a reverse recovery time (t_rr) of 150 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is confirmed in the official TSC datasheet Version B2103 and applies specifically to RS1GF-T-not extrapolated from adjacent variants. The 150 ns t_rr enables efficient operation in 100–500 kHz switching power supplies where fast turn-off minimizes switching loss.

Is RS1GF-T pin-compatible with other devices in the RS1x series?

No-RS1GF-T shares the same SMAF package and pinout (anode/cathode) with RS1DF-T, RS1JF-T, RS1KF-T, and RS1MF-T, but it is not pin-compatible with devices from other manufacturers or different packages (e.g., SMA, DO-41). All RS1x-T variants use identical mechanical dimensions and polarity marking, allowing common PCB footprint reuse across voltage grades. RS1GF-T remains functionally distinct due to its specific 400V V_RRM and associated electrical parameters.

What is the forward voltage drop of RS1GF-T at full rated current?

At I_F = 1.0 A and T_J = 25°C, the RS1GF-T exhibits a typical forward voltage (V_F) of 1.00 V, with a maximum of 1.30 V. At elevated junction temperature (125°C), V_F drops to 0.85 V (typ) and 1.00 V (max), reflecting the negative temperature coefficient of silicon diodes. These values are measured under pulsed conditions (PW = 0.3 ms) and define conduction loss boundaries for thermal modeling of RS1GF-T in real-world designs.

RS1GF-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-221AC, SMA Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 9pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMAF

Operating Temperature - Junction:: -55°C ~ 150°C

RS1GF-T FAQ

1.How can I place an order for RS1GF-T through Aetrix?

Please submit a Request for Quotation (RFQ) for RS1GF-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for RS1GF-T reliable?

The price and inventory of RS1GF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1GF-T is usually 5 days.

3.What payment methods are accepted for RS1GF-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1GF-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS1GF-T?

RS1GF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS1GF-T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for RS1GF-T?

For technical support, including RS1GF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1GF-T requirements.

6.How does Aetrix verify that RS1GF-T is sourced from the original manufacturer or authorized distributors?

All RS1GF-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RS1GF-T meets industry standards.

7.What is the process for return or replacement of RS1GF-T?

All RS1GF-T units undergo pre-shipment inspection (PSI). If there is an issue with RS1GF-T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The RS1GF-T part is unused and in its original packaging.

Return procedure for RS1GF-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…