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

Taiwan Semiconductor Corporation SF2004PTH

Name: SF2004PTH
Brand: Taiwan Semiconductor Corporation
SKU: SF2004PTH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF2004PTH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-247-3

Datasheet:: SF2004PTH.pdf

Description:: DIODE GEN PURP 200V 20A TO247AD

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SF2004PTH from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD package, rated for 200 V repetitive peak reverse voltage (V_RRM), 20 A average forward current (I_F), and 35 ns reverse recovery time (t_rr). It delivers low forward voltage (1.100 V at 20 A, 25°C) and high efficiency in DC–DC converters and snubber circuits.

For engineers reviewing the SF2004PTH datasheet, SF2004PTH pinout, SF2004PTH application, or SF2004PTH equivalent, key selection factors include its AEC-Q101 qualification, dual-die center-tap configuration, thermal resistance of 2.5°C/W, and compatibility with high-frequency switching topologies requiring fast recovery and low conduction loss.

Technical Context

The SF2004PTH integrates two identical silicon die in a single TO-247AD package with shared cathode and isolated anodes-enabling center-tapped full-wave rectification without external wiring. Its glass-passivated junctions ensure robustness against moisture and contamination.

Designed for high-efficiency power conversion, it supports operation up to 150°C junction temperature, exhibits 10 µA max reverse leakage at 25°C, and maintains stable capacitance (175 pF typical) across 1 MHz at 4 V reverse bias-critical for EMI control in SMPS designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Withstands 200 V repetitive reverse voltage without breakdown; suitable for 120 VAC input-derived 200 V bus rails.
I_F	20 A - Continuous average forward current per diode; enables compact heatsinking in high-power converters.
t_rr	35 ns - Ultra-fast recovery minimizes switching losses and ringing in hard-switched topologies above 100 kHz.
V_F @ 20 A	1.100 V - Low conduction loss reduces thermal stress and improves system efficiency at full load.
R_θJC	2.5 °C/W - Enables direct mounting to heatsink with predictable thermal performance and simplified thermal design.
I_FSM	180 A - Handles 8.3 ms surge currents common during startup or fault transients without failure.

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal, positive-center-tap configuration with Anode1, Anode2, and common Cathode. Mounting hole accommodates 1.13 N·m torque; matte tin-plated leads meet J-STD-002 solderability.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1 (A1)	Input terminal for first diode leg	Connects to one side of transformer secondary or split DC rail; forms half of center-tapped rectifier pair.
Anode 2 (A2)	Input terminal for second diode leg	Connects to opposite side of transformer secondary; enables full-wave rectification with shared cathode output.
Cathode (K)	Common output node	Delivers rectified DC output; serves as reference point for filtering and regulation stages.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive underhood applications including engine control and ADAS power supplies.
Glass-passivated junction	Enhances long-term reliability in humid or chemically aggressive environments without hermetic sealing.
Dual-die center-tap construction	Reduces component count and PCB area vs. discrete dual-diode solutions; eliminates interconnect inductance.
UL Recognized (E-326243)	Meets safety requirements for end equipment certification in industrial and consumer power systems.

Applications

DC–DC Converter	Snubber Circuit
Use Scenario: High-efficiency isolated buck-boost converter in telecom power supply with 200 V intermediate bus. IC Role / Device Role / Timing Role: Dual-die center-tap rectifier provides synchronous full-wave output with minimal voltage drop and fast recovery. Use Value: 1.100 V forward drop at 20 A lowers conduction loss by ~15% vs. standard fast rectifiers, improving overall efficiency.	Use Scenario: RCD snubber network clamping voltage spikes across MOSFETs in flyback converters operating at 100–250 kHz. IC Role / Device Role / Timing Role: Fast-recovery diode absorbs transient energy during switch turn-off with minimal reverse recovery tail. Use Value: 35 ns t_rr limits snubber dissipation and prevents secondary oscillation, enhancing reliability.
Lighting Application	Freewheeling Diode
Use Scenario: LED driver for commercial high-bay lighting using active PFC + LLC resonant stage with 200 V output bus. IC Role / Device Role / Timing Role: Output rectifier in LLC secondary, handling continuous 20 A DC with low thermal resistance. Use Value: 2.5°C/W R_θJC allows direct heatsink mounting without thermal interface pads, simplifying mechanical design.	Use Scenario: Freewheeling path for inductive loads in industrial motor control H-bridge drivers. IC Role / Device Role / Timing Role: Provides low-loss return path during PWM off-time, preventing voltage overshoot on switching nodes. Use Value: 180 A I_FSM withstands repeated inductive kickback surges without degradation over lifetime.

DC–DC Converter

Snubber Circuit

Use Scenario: High-efficiency isolated buck-boost converter in telecom power supply with 200 V intermediate bus.

IC Role / Device Role / Timing Role: Dual-die center-tap rectifier provides synchronous full-wave output with minimal voltage drop and fast recovery.

Use Value: 1.100 V forward drop at 20 A lowers conduction loss by ~15% vs. standard fast rectifiers, improving overall efficiency.

Use Scenario: RCD snubber network clamping voltage spikes across MOSFETs in flyback converters operating at 100–250 kHz.

IC Role / Device Role / Timing Role: Fast-recovery diode absorbs transient energy during switch turn-off with minimal reverse recovery tail.

Use Value: 35 ns t_rr limits snubber dissipation and prevents secondary oscillation, enhancing reliability.

Lighting Application

Freewheeling Diode

Use Scenario: LED driver for commercial high-bay lighting using active PFC + LLC resonant stage with 200 V output bus.

IC Role / Device Role / Timing Role: Output rectifier in LLC secondary, handling continuous 20 A DC with low thermal resistance.

Use Value: 2.5°C/W R_θJC allows direct heatsink mounting without thermal interface pads, simplifying mechanical design.

Use Scenario: Freewheeling path for inductive loads in industrial motor control H-bridge drivers.

IC Role / Device Role / Timing Role: Provides low-loss return path during PWM off-time, preventing voltage overshoot on switching nodes.

Use Value: 180 A I_FSM withstands repeated inductive kickback surges without degradation over lifetime.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2002CT	200 V V_RRM, 20 A I_F, 35 ns t_rr, TO-247 package, but single-die dual-anode (not center-tap); higher V_F (1.25 V @ 20 A).	Requires external center-tap wiring or transformer redesign; less compact layout.	Select when board-level flexibility outweighs integration benefit and thermal margin permits higher V_F.
IXYS MUR2020CT	200 V V_RRM, 20 A I_F, 30 ns t_rr, TO-247 package, center-tap, AEC-Q101 qualified; slightly faster but higher cost.	Direct functional replacement with improved speed; same footprint and mounting.	Choose when <5 ns t_rr reduction justifies premium pricing in noise-sensitive or ultra-high-frequency designs.

Compared with STTH2002CT and IXYS MUR2020CT, the SF2004PTH offers optimal balance of integrated center-tap convenience, AEC-Q101 compliance, and thermally efficient TO-247AD packaging-making it preferred for space-constrained automotive and industrial power supplies where layout simplicity and reliability are prioritized.

Availability

SF2004PTH is available at Aetrix Electronics and suitable for DC–DC converters, snubber networks, lighting drivers, and freewheeling applications requiring stable component supply, automotive-grade qualification, and consistent thermal performance.

Supply support for SF2004PTH 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in rectifiers, TVS devices, and discrete power solutions.

The SF2004PTH belongs to TSC's SF20xxPT superfast rectifier family, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC power conversion in automotive, industrial, and lighting systems.

FAQ

What is the maximum junction temperature rating for the SF2004PTH?

The SF2004PTH has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official datasheet. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Thermal design must maintain case-to-ambient conditions within limits using the specified 2.5°C/W junction-to-case resistance. The SF2004PTH must not exceed this limit during steady-state or transient operation.

Is the SF2004PTH pin-compatible with other parts in the SF200xPT series?

Yes-the SF2004PTH shares identical TO-247AD package dimensions, pinout (A1/A2/K), and mounting specifications with all SF2001PT through SF2008PT variants. Voltage rating differences (50–600 V) do not affect physical compatibility. Engineers may substitute within the series for prototyping or BOM optimization, provided electrical parameters like V_RRM and V_F meet circuit requirements. The SF2004PTH retains full mechanical interchangeability.

Does the SF2004PTH require derating at elevated ambient temperatures?

Yes-the SF2004PTH must be derated linearly above 25°C ambient per its forward current derating curve. At 100°C case temperature, its average forward current drops to approximately 12 A. Derating ensures junction temperature remains ≤150°C. Designers must calculate total thermal resistance (R_θJA) and apply appropriate heatsinking. The SF2004PTH datasheet provides exact derating values in Figure 1.

What does the "H" suffix in SF2004PTH signify?

The "H" suffix in SF2004PTH indicates full AEC-Q101 qualification-verified through stress testing including HTSL, TC, UHAST, and mechanical shock per automotive reliability standards. This distinguishes it from non-H variants (e.g., SF2004PT), which lack automotive qualification. The SF2004PTH is approved for use in automotive powertrain and body electronics where extended temperature cycling and long-term reliability are mandatory.

How does the SF2004PTH compare to standard fast recovery diodes in switching performance?

The SF2004PTH achieves 35 ns reverse recovery time (t_rr), significantly faster than standard fast recovery diodes (typically 50–100 ns). This reduces switching losses, voltage overshoot, and EMI generation in high-frequency converters. Its 175 pF junction capacitance and low stored charge further improve dynamic behavior. In practical use, the SF2004PTH enables cleaner waveforms and higher efficiency in 100–500 kHz SMPS designs compared to legacy alternatives.

SF2004PTH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 20A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 20 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 200 V

Capacitance @ Vr, F:: 175pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: TO-247AD (TO-3P)

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

SF2004PTH FAQ

1.How can I place an order for SF2004PTH through Aetrix?

Please submit a Request for Quotation (RFQ) for SF2004PTH 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 SF2004PTH reliable?

The price and inventory of SF2004PTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF2004PTH is usually 5 days.

3.What payment methods are accepted for SF2004PTH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF2004PTH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF2004PTH?

SF2004PTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF2004PTH 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 SF2004PTH?

For technical support, including SF2004PTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF2004PTH requirements.

6.How does Aetrix verify that SF2004PTH is sourced from the original manufacturer or authorized distributors?

All SF2004PTH 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 SF2004PTH meets industry standards.

7.What is the process for return or replacement of SF2004PTH?

All SF2004PTH units undergo pre-shipment inspection (PSI). If there is an issue with SF2004PTH, 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 SF2004PTH part is unused and in its original packaging.

Return procedure for SF2004PTH:

1.Submit a request within 90 days.

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

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