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

Taiwan Semiconductor Corporation PU1DFSH

Name: PU1DFSH
Brand: Taiwan Semiconductor Corporation
SKU: PU1DFSH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PU1DFSH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-128

Datasheet:: PU1DFSH.pdf

Description:: DIODE GEN PURP 200V 1A SOD128

Quantity:: RFQ Add To RFQ list

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Inventory:2,615

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Product details

Overview

PU1DFSH from Taiwan Semiconductor is a 1 A, 200 V ultra-fast surface-mount rectifier diode in SOD-128 package, featuring 25 ns reverse recovery time, 0.84 V forward voltage at 1.0 A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating at high switching frequencies.

For engineers reviewing the PU1DFSH datasheet, PU1DFSH pinout, PU1DFSH application, or PU1DFSH equivalent, key selection criteria include its 200 V repetitive peak reverse voltage, 45 A surge current rating, 175 °C maximum junction temperature, low R_θJL of 17 °C/W, and SOD-128 thermal performance on standard PCB pads.

Technical Context

The PU1DFSH employs planar silicon technology to achieve ultra-fast recovery with trr ≤ 25 ns under IF = 0.5 A / IR = 1.0 A / Irr = 0.25 A conditions and Qrr = 27 nC, enabling efficient operation in hard-switched topologies. Its 200 V V_RRM and 140 V VR(RMS) support use in 100–200 V bus applications requiring robust transient blocking.

Thermally, the device delivers R_θJL = 17 °C/W and R_θJA = 75 °C/W when mounted on a 5 mm × 5 mm Cu pad, supporting continuous 1 A conduction up to 125 °C ambient. The cathode-band polarity marking and matte tin-plated leads ensure compatibility with automated SMT assembly per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - supports 200 V DC bus or peak AC line-referenced circuits without breakdown
I_F	1 A continuous - rated for sustained conduction in power supply output stages
t_rr	25 ns - enables >1 MHz switching in resonant or quasi-resonant converters
V_F @ 1 A, 25°C	0.84 V max - reduces conduction loss vs. standard fast recovery diodes (typically >1.1 V)
R_θJL	17 °C/W - allows direct thermal coupling to PCB copper, simplifying heatsinking
Q_rr	27 nC - minimizes switching loss and EMI during turn-off in hard-switched SMPS
T_J max	175 °C - enables operation in under-hood automotive environments without derating

Pinout & Package

Package: SOD-128 - molded surface-mount package with gull-wing leads, UL 94V-0 rated compound, 0.027 g mass, and cathode band polarity indicator.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal during forward conduction	Connected to lower-potential node (e.g., switch node in buck freewheel path)
Cathode	Current exit terminal during forward conduction; reverse-blocking terminal	Marked by band; connects to higher-potential rail (e.g., output capacitor positive)

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive power electronics including engine control and ADAS power supplies
Ultra-fast trr ≤ 25 ns	Reduces turn-off switching loss and voltage overshoot in high-frequency DC/DC stages
Low V_F = 0.84 V @ 1 A	Lowers conduction loss by ~25% versus comparable 200 V fast rectifiers
SOD-128 with R_θJL = 17 °C/W	Enables thermal management via PCB copper alone-no external heatsink required
Moisture sensitivity level 1	Eliminates bake requirements prior to reflow, streamlining SMT manufacturing

Applications

Automotive DC/DC Converters	Industrial Switch-Mode Power Supplies
Use Scenario: 12 V → 5 V/3.3 V point-of-load conversion in engine control units and infotainment systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous-buck or flyback secondary side. Use Value: AEC-Q101 qualification and 175 °C T_J max ensure reliability across under-hood temperature cycles.	Use Scenario: Output rectification in 24 V/48 V industrial SMPS for PLCs and motor drives. IC Role / Device Role / Timing Role: High-frequency output rectifier replacing slower FRDs to reduce EMI and improve efficiency. Use Value: 25 ns t_rr and 27 nC Q_rr cut switching losses by >30% vs. legacy 200 V fast recovery diodes.
Snubber Networks	High-Frequency Inverters
Use Scenario: RCD snubber clamp in IGBT-based motor drive inverters operating at 10–50 kHz. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy spikes during IGBT turn-off. Use Value: Low Q_rr and tight trr distribution minimize snubber dissipation and thermal stress.	Use Scenario: Auxiliary power supply rectification in solar microinverters and UPS systems. IC Role / Device Role / Timing Role: Input-stage rectifier handling high dv/dt transients from PV string inputs. Use Value: 200 V V_RRM and 140 V VR(RMS) provide margin against line surges and reflected transients.

Automotive DC/DC Converters

Industrial Switch-Mode Power Supplies

Use Scenario: 12 V → 5 V/3.3 V point-of-load conversion in engine control units and infotainment systems.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous-buck or flyback secondary side.

Use Value: AEC-Q101 qualification and 175 °C T_J max ensure reliability across under-hood temperature cycles.

Use Scenario: Output rectification in 24 V/48 V industrial SMPS for PLCs and motor drives.

IC Role / Device Role / Timing Role: High-frequency output rectifier replacing slower FRDs to reduce EMI and improve efficiency.

Use Value: 25 ns t_rr and 27 nC Q_rr cut switching losses by >30% vs. legacy 200 V fast recovery diodes.

Snubber Networks

High-Frequency Inverters

Use Scenario: RCD snubber clamp in IGBT-based motor drive inverters operating at 10–50 kHz.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy spikes during IGBT turn-off.

Use Value: Low Q_rr and tight trr distribution minimize snubber dissipation and thermal stress.

Use Scenario: Auxiliary power supply rectification in solar microinverters and UPS systems.

IC Role / Device Role / Timing Role: Input-stage rectifier handling high dv/dt transients from PV string inputs.

Use Value: 200 V V_RRM and 140 V VR(RMS) provide margin against line surges and reflected transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R02UF	Same 200 V V_RRM, but 35 ns t_rr and 38 nC Q_rr; R_θJA = 90 °C/W	Higher switching loss in >500 kHz designs; less thermally efficient on PCB	Acceptable where cost is prioritized over peak efficiency or thermal headroom
ES1D-E3/54	200 V V_RRM, 35 ns t_rr, 0.92 V V_F @ 1 A; SOD-123 package (higher R_θJA)	Lower thermal performance limits continuous current in compact layouts	Preferred only if SOD-123 footprint is mandatory and ambient < 85 °C

Compared with STTH1R02UF and ES1D-E3/54, the PU1DFSH delivers superior high-frequency efficiency due to its 25 ns t_rr, 27 nC Q_rr, and 17 °C/W R_θJL, making it optimal for space-constrained, thermally demanding automotive and industrial DC/DC designs.

Availability

PU1DFSH is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS design, and high-frequency snubber networks requiring stable component supply and AEC-Q101 compliance.

Supply support for PU1DFSH 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, specializing in power devices, rectifiers, and protection components.

The PU1DFSH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where thermal robustness and fast recovery are critical.

FAQ

What is the maximum repetitive peak reverse voltage rating for PU1DFSH?

The PU1DFSH has a maximum repetitive peak reverse voltage (V_RRM) of 200 V, verified per the manufacturer's absolute maximum ratings table. This rating ensures reliable blocking capability in 200 V DC bus applications and provides sufficient margin for transient voltage spikes in automotive and industrial power systems. The PU1DFSH maintains this rating across its full operating junction temperature range of –55 °C to +175 °C.

Is PU1DFSH suitable for automotive applications?

Yes, PU1DFSH is AEC-Q101 qualified and explicitly designed for automotive power electronics. Its 175 °C maximum junction temperature, moisture sensitivity level 1, and planar construction meet stringent automotive reliability requirements. The PU1DFSH is commonly deployed in engine control unit (ECU) DC/DC converters, ADAS power supplies, and body electronics where high-temperature operation and long-term stability are essential.

What is the forward voltage drop of PU1DFSH at 1 A and 25°C?

The forward voltage (V_F) of PU1DFSH is 0.84 V maximum at 1 A forward current and 25 °C junction temperature, as specified in the electrical characteristics table. At 125 °C, V_F drops to 0.70 V typical, reflecting the negative temperature coefficient of silicon diodes. This low V_F directly reduces conduction losses compared to standard fast recovery diodes with V_F > 1.0 V.

Does PU1DFSH have a defined reverse recovery time?

Yes, PU1DFSH specifies a reverse recovery time (t_rr) of 25 ns maximum under test conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. An alternate condition yields t_rr = 19 ns typical. This ultra-fast recovery enables efficient operation in high-frequency switching applications such as 500 kHz–1 MHz DC/DC converters, where minimizing switching loss and EMI is critical. The PU1DFSH's t_rr is significantly faster than standard fast recovery diodes.

What package type does PU1DFSH use, and what are its thermal characteristics?

PU1DFSH uses the SOD-128 surface-mount package with gull-wing leads and a UL 94V-0 molding compound. Its thermal performance includes R_θJL = 17 °C/W and R_θJA = 75 °C/W when mounted on a 5 mm × 5 mm copper pad. These values enable effective heat transfer to the PCB without additional heatsinking, supporting full 1 A current capability at ambient temperatures up to 125 °C. The SOD-128 footprint is optimized for automated placement and reflow compatibility.

PU1DFSH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-128

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

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

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 930 mV @ 1 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 200 V

Capacitance @ Vr, F:: 19pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-128

Operating Temperature - Junction:: -55°C ~ 175°C

PU1DFSH FAQ

1.How can I place an order for PU1DFSH through Aetrix?

Please submit a Request for Quotation (RFQ) for PU1DFSH 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 PU1DFSH reliable?

The price and inventory of PU1DFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PU1DFSH is usually 5 days.

3.What payment methods are accepted for PU1DFSH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PU1DFSH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PU1DFSH?

PU1DFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PU1DFSH 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 PU1DFSH?

For technical support, including PU1DFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PU1DFSH requirements.

6.How does Aetrix verify that PU1DFSH is sourced from the original manufacturer or authorized distributors?

All PU1DFSH 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 PU1DFSH meets industry standards.

7.What is the process for return or replacement of PU1DFSH?

All PU1DFSH units undergo pre-shipment inspection (PSI). If there is an issue with PU1DFSH, 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 PU1DFSH part is unused and in its original packaging.

Return procedure for PU1DFSH:

1.Submit a request within 90 days.

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

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