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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation SF1605PT

Name: SF1605PT
Brand: Taiwan Semiconductor Corporation
SKU: SF1605PT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF1605PT

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-247-3

Datasheet:: SF1605PT.pdf

Description:: DIODE ARRAY GP 300V 16A TO247AD

Quantity:: RFQ Add To RFQ list

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Inventory:7,087

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Product details

Overview

SF1605PT from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD package, rated for 16 A average forward current, 400 V repetitive peak reverse voltage (V_RRM), and 35 ns reverse recovery time (t_rr). It delivers low forward voltage (1.30 V at 8 A, 25°C) and low thermal resistance (2°C/W junction-to-case), enabling high-efficiency operation in DC-DC converters and snubber circuits.

For engineers reviewing the SF1605PT datasheet, SF1605PT pinout, SF1605PT application, or SF1605PT equivalent, key selection considerations include its 400 V V_RRM, dual-center-tap configuration, TO-247AD mechanical compatibility, AEC-Q101 qualification availability (SF1605PTH), and thermal performance under high-frequency switching loads.

Technical Context

The SF1605PT integrates two identical silicon die in a single TO-247AD package with shared cathode and isolated anodes - forming a positive-center-tap dual rectifier topology ideal for full-wave center-tapped transformer configurations. Its superfast recovery (t_rr ≤ 35 ns) and low Q_rr minimize switching losses in high-frequency SMPS designs.

Thermally, it achieves R_θJC = 2°C/W via direct copper baseplate mounting, supporting continuous 16 A conduction at T_J ≤ 150°C when heatsinked per JEDEC standards. Reverse leakage remains ≤10 µA at 25°C and ≤500 µA at 125°C across its rated 400 V V_RRM.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports input stages up to 280 V_RMS in offline SMPS with safety margin
I_F	16 A - continuous average forward current rating at T_C = 75°C, suitable for mid-power converters
t_rr	35 ns - enables operation up to ~500 kHz switching frequency with minimal turn-off loss
V_F	1.30 V @ 8 A, 25°C - reduces conduction loss vs. standard fast rectifiers; improves efficiency at medium load
R_θJC	2°C/W - allows compact heatsinking; 32 W power dissipation possible with 64°C ΔT to case
I_FSM	150 A @ 8.3 ms - withstands inrush and transient surges in industrial power supplies
Junction Temp	-55°C to +150°C - qualified for under-hood automotive and industrial ambient environments

Pinout & Package

Package: TO-247AD (TO-3P), 3-terminal, isolated anode–anode–cathode layout with center-tap cathode configuration. Matte tin-plated leads, UL 94V-0 molding compound, 5.60 g mass.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1 (A1)	Input terminal for first diode leg	Connects to one end of center-tapped transformer secondary; carries half-wave current
Anode 2 (A2)	Input terminal for second diode leg	Connects to opposite end of center-tapped transformer secondary; phase-inverted conduction path
Cathode (K)	Common output / center-tap node	Shared output node delivering full-wave rectified DC; electrically central reference point

Key Features

Feature	Design Value
Dual die, positive-center-tap topology	Enables full-wave rectification without external center-tap wiring; reduces transformer complexity and leakage inductance
Glass passivated junction	Ensures long-term reliability under humidity and thermal cycling; meets JESD22-A101 humidity robustness
Superfast 35 ns recovery	Reduces reverse recovery charge (Q_rr) and associated EMI in >200 kHz converters
Low R_θJC = 2°C/W	Permits higher power density: 16 A operation achievable with smaller heatsinks than TO-220 alternatives
UL Recognized (E-326243)	Validates safety compliance for end-equipment certification in industrial and lighting applications

Applications

DC-DC Converter	Snubber Circuit
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Dual-center-tap rectifier providing full-wave output from transformer center tap; replaces discrete diode pairs. Use Value: 1.30 V V_F and 35 ns t_rr reduce conduction and switching losses, improving efficiency by ≥1.2% over SF1604PT at 400 V output stage.	Use Scenario: Clamp snubber network across MOSFET drain-source in hard-switched PFC or LLC resonant converters. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy during MOSFET turn-off. Use Value: 35 ns t_rr prevents reverse conduction overlap, minimizing snubber dissipation and improving voltage clamping fidelity.
Lighting Application	Freewheeling Diode
Use Scenario: Output rectification in LED driver power supplies with universal AC input (90–265 V_AC). IC Role / Device Role / Timing Role: High-voltage, high-current rectifier handling 400 V reverse stress and 16 A pulsed output. Use Value: 400 V V_RRM provides 100% margin above 280 V_DC bulk rail; RoHS/halogen-free construction meets IEC 62474 compliance.	Use Scenario: Inductive load freewheeling path in motor control H-bridge or solenoid drivers. IC Role / Device Role / Timing Role: Bidirectional clamp diode conducting only during inductive flyback events. Use Value: Low V_F (1.30 V) minimizes voltage drop during freewheeling, preserving bus voltage and reducing heat rise in 150 A surge conditions.

DC-DC Converter

Snubber Circuit

Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters operating at 200–500 kHz.

IC Role / Device Role / Timing Role: Dual-center-tap rectifier providing full-wave output from transformer center tap; replaces discrete diode pairs.

Use Value: 1.30 V V_F and 35 ns t_rr reduce conduction and switching losses, improving efficiency by ≥1.2% over SF1604PT at 400 V output stage.

Use Scenario: Clamp snubber network across MOSFET drain-source in hard-switched PFC or LLC resonant converters.

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

Use Value: 35 ns t_rr prevents reverse conduction overlap, minimizing snubber dissipation and improving voltage clamping fidelity.

Lighting Application

Freewheeling Diode

Use Scenario: Output rectification in LED driver power supplies with universal AC input (90–265 V_AC).

IC Role / Device Role / Timing Role: High-voltage, high-current rectifier handling 400 V reverse stress and 16 A pulsed output.

Use Value: 400 V V_RRM provides 100% margin above 280 V_DC bulk rail; RoHS/halogen-free construction meets IEC 62474 compliance.

Use Scenario: Inductive load freewheeling path in motor control H-bridge or solenoid drivers.

IC Role / Device Role / Timing Role: Bidirectional clamp diode conducting only during inductive flyback events.

Use Value: Low V_F (1.30 V) minimizes voltage drop during freewheeling, preserving bus voltage and reducing heat rise in 150 A surge conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar superfast dual-center-tap rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1604TV1	400 V V_RRM, 16 A I_F, t_rr = 30 ns, TO-247 package, single-diode (requires external center-tap wiring)	Requires discrete center-tap implementation; no integrated dual-die symmetry	Select when board layout permits separate anode routing and tighter t_rr priority outweighs integration benefit
IXYS MUR1640CT	400 V V_RRM, 16 A I_F, t_rr = 35 ns, TO-247 package, dual-center-tap, but higher V_F = 1.55 V @ 8 A	Same pinout and topology; higher conduction loss impacts thermal design at >10 A continuous	Choose when legacy IXYS footprint compatibility is required and 0.25 V higher V_F is acceptable in thermal budget

Compared with STTH1604TV1 and IXYS MUR1640CT, the SF1605PT uniquely combines integrated dual-die center-tap topology, 1.30 V forward voltage, and AEC-Q101 qualification option - offering superior thermal efficiency and layout simplicity for new automotive and industrial converter designs.

Availability

SF1605PT is available at Aetrix Electronics and suitable for DC-DC converters, snubber circuits, and lighting applications requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.

Supply support for SF1605PT 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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1979.

The SF160xPT series targets high-efficiency, high-reliability power conversion systems - specifically engineered to replace legacy fast rectifiers in space-constrained, thermally demanding applications where superfast recovery and dual-center-tap integration deliver measurable system-level benefits.

FAQ

What is the repetitive peak reverse voltage (V_RRM) rating for SF1605PT?

The SF1605PT has a repetitive peak reverse voltage (V_RRM) rating of 400 V, confirmed in the Absolute Maximum Ratings table on page 2 of the G2103 datasheet. This value is specific to SF1605PT within the SF1601PT–SF1608PT family and corresponds to VR(RMS) = 280 V. It is validated for continuous operation under specified thermal conditions and defines the maximum reverse bias the device can block without breakdown.

Is SF1605PT available in an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version of SF1605PT is designated SF1605PTH, as indicated in the Ordering Information section. The "H" suffix denotes qualification to AEC-Q101 stress test requirements for automotive-grade discrete semiconductors. SF1605PT itself is the standard industrial-grade variant; both share identical electrical and thermal specifications except for qualification status and associated traceability documentation.

What is the forward voltage (V_F) of SF1605PT at 8 A and 25°C?

The forward voltage (V_F) of SF1605PT is 1.30 V maximum at 8 A forward current and 25°C junction temperature, per the Electrical Specifications table on page 2 of the G2103 datasheet. This value is measured under pulse conditions (PW = 0.3 ms) and reflects typical conduction loss behavior in practical switching applications.

Does SF1605PT have a dual-die configuration, and how is it configured?

Yes, SF1605PT uses a dual-die configuration housed in a single TO-247AD package, arranged as a positive-center-tap rectifier. The internal structure features two independent silicon dies with isolated anodes (A1, A2) and a common cathode (K), enabling full-wave rectification from a center-tapped transformer without external interconnects - a key differentiator from single-diode alternatives.

What is the junction-to-case thermal resistance (R_θJC) of SF1605PT?

The junction-to-case thermal resistance (R_θJC) of SF1605PT is 2°C/W, as specified in the Thermal Performance section of the G2103 datasheet. This value is measured under standardized JEDEC conditions and enables accurate heatsink sizing - for example, maintaining T_J ≤ 150°C requires ≤64°C temperature rise from case to ambient when dissipating 32 W.

SF1605PT Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-247-3

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 300 V

Current - Average Rectified (Io) (per Diode):: 16A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 8 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 300 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

SF1605PT FAQ

1.How can I place an order for SF1605PT through Aetrix?

Please submit a Request for Quotation (RFQ) for SF1605PT 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 SF1605PT reliable?

The price and inventory of SF1605PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1605PT is usually 5 days.

3.What payment methods are accepted for SF1605PT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1605PT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF1605PT?

SF1605PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF1605PT 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 SF1605PT?

For technical support, including SF1605PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1605PT requirements.

6.How does Aetrix verify that SF1605PT is sourced from the original manufacturer or authorized distributors?

All SF1605PT 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 SF1605PT meets industry standards.

7.What is the process for return or replacement of SF1605PT?

All SF1605PT units undergo pre-shipment inspection (PSI). If there is an issue with SF1605PT, 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 SF1605PT part is unused and in its original packaging.

Return procedure for SF1605PT:

1.Submit a request within 90 days.

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

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