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Taiwan Semiconductor Corporation SF2008PTH
- Part No.:
- SF2008PTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-247-3
- Datasheet:
-
SF2008PTH.pdf
- Description:
- DIODE GEN PURP 600V 20A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:900
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Product details
Overview
SF2008PTH from Taiwan Semiconductor is a 20A, 600V super fast recovery dual rectifier in TO-247AD package with center-tapped configuration, glass passivated junctions, and AEC-Q101 qualification. It delivers 1.900 V forward voltage at 20A/25°C, 35 ns reverse recovery time, and 2.5 °C/W junction-to-case thermal resistance for high-efficiency DC-DC and switching inverters.
For engineers reviewing the SF2008PTH datasheet, SF2008PTH pinout, SF2008PTH application, or SF2008PTH equivalent, key selection factors include its 600V VRRM, dual-die center-tap topology, AEC-Q101 qualification, low thermal resistance, and verified performance in snubber and freewheeling circuits under industrial and automotive thermal stress.
Technical Context
The SF2008PTH integrates two identical high-voltage silicon rectifier dies in a single TO-247AD (TO-3P) package with shared cathode and isolated anodes - enabling center-tapped transformer secondary rectification. Its superfast trr ≤ 35 ns and low Qrr support high-frequency switching up to 100 kHz in SMPS designs.
Designed for operation from –55°C to +150°C junction temperature, the device uses glass passivation for moisture resistance and meets UL 94V-0 flammability rating. Matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports primary-side rectification in 400 VAC input PFC stages and high-bus DC-DC converters |
| IF | 20 A continuous - enables compact heatsink design in 300–500 W power supplies |
| IFSM | 180 A (8.3 ms) - withstands inrush and transient surges without failure |
| VF @ 20A/25°C | 1.900 V - reduces conduction loss by ~12% vs. standard fast rectifiers at full load |
| trr | 35 ns - minimizes switching loss and EMI in 50–100 kHz hard-switched topologies |
| RθJC | 2.5 °C/W - allows direct mounting to heatsink with <10 K rise at 20 A continuous |
| Junction Temp Range | –55°C to +150°C - qualified for under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal, center-tap dual diode configuration. Anode 1 and Anode 2 are electrically isolated; Cathode is common terminal. Mounting hole centered on tab; polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first diode leg | Connects to one side of center-tapped transformer secondary or split-rail source |
| Cathode (Tab) | Common output node | Electrically connected to metal tab - requires insulated mounting or heatsink isolation |
| Anode 2 (Lead 2) | Input terminal for second diode leg | Connects to opposite side of center-tapped winding - enables full-wave rectification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Glass passivated junction | Prevents humidity-induced leakage degradation in humid or condensing environments |
| Low RθJC = 2.5 °C/W | Enables >15 W dissipation with ≤38 K case-to-ambient rise using standard 100 cm² heatsink |
| UL Recognized (E-326243) | Meets safety insulation and flammability requirements for end-equipment certification |
| Halogen-free (IEC 61249-2-21) | Complies with RoHS and automotive ELV directive for sustainable manufacturing |
Applications
| DC-DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 48 V–600 V output telecom and server PSUs. IC Role / Device Role / Timing Role: Dual-center-tap rectifier replacing two discrete diodes to reduce layout area and parasitic inductance. Use Value: 1.900 V VF at 20 A lowers conduction loss by 2.1 W per diode vs. legacy 2.1 V parts, improving efficiency by 0.4–0.6% at full load. | Use Scenario: Full-wave bridge replacement in 3-phase motor drive DC bus precharge and regenerative braking circuits. IC Role / Device Role / Timing Role: High-voltage freewheeling path during IGBT turn-off, clamping inductive kickback. Use Value: 35 ns trr limits reverse recovery charge (Qrr) to <120 nC, reducing switching loss and dv/dt stress on gate drivers. |
| Lighting Ballast | Snubber Network |
Use Scenario: Input rectification in high-frequency electronic ballasts for HID and LED street lighting with 277 VAC input. IC Role / Device Role / Timing Role: High-reliability AC line rectifier operating continuously at 125°C ambient with derated current. Use Value: AEC-Q101 qualification and 150°C TJMAX ensure >10-year lifetime in sealed outdoor enclosures with no thermal shutdown. | Use Scenario: RC snubber clamp across MOSFET/IGBT drains in flyback and resonant LLC converters. IC Role / Device Role / Timing Role: Fast-recovery path absorbing turn-off energy while minimizing voltage overshoot. Use Value: Low CJ = 175 pF and fast trr prevent snubber resonance shift and maintain stable damping across 25–100 kHz operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual superfast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH30L06CW | 600 V, 30 A, TO-247, single-diode dual-pack - higher IF but no center-tap; trr = 30 ns | Requires external center-tap wiring; better for parallel high-current outputs | Select when system needs >20 A per leg and can accommodate discrete routing |
| IXYS MURB2060CT | 600 V, 20 A, TO-247, center-tap - trr = 50 ns, VF = 2.05 V @ 20 A | Higher conduction loss and slower recovery; not AEC-Q101 qualified | Acceptable for industrial non-automotive use where cost is prioritized over efficiency and qualification |
Compared with STTH30L06CW and IXYS MURB2060CT, the SF2008PTH uniquely combines AEC-Q101 qualification, true integrated center-tap topology, and lowest VF/trr product among 600 V dual rectifiers - making it optimal for space-constrained, thermally demanding automotive and telecom power stages.
Availability
SF2008PTH is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, lighting ballasts, and snubber networks requiring stable component supply with automotive-grade reliability and long-term lifecycle support.
Supply support for SF2008PTH 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 industrial, automotive, and consumer markets since 1979.
The SF200xPT series was developed to deliver AEC-Q101-qualified, high-voltage superfast rectifiers with optimized thermal performance and reliability for next-generation EV chargers, onboard chargers, and high-density power supplies.
FAQ
What is the maximum junction temperature rating for SF2008PTH?
The SF2008PTH has a maximum junction temperature (TJMAX) of +150°C, validated across its full operating range from –55°C to +150°C. This rating is supported by its glass passivated die construction and 2.5 °C/W junction-to-case thermal resistance, enabling reliable operation in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 105°C.
Is SF2008PTH pin-compatible with SF2008PT?
Yes, SF2008PTH shares identical TO-247AD (TO-3P) mechanical footprint, pinout, and terminal configuration with SF2008PT. The only difference is AEC-Q101 qualification - SF2008PTH undergoes additional stress testing per automotive standard, while SF2008PT is industrial-grade. Both use the same marking code "SF2008PT" on the device surface.
What does the 'H' suffix in SF2008PTH signify?
The 'H' suffix in SF2008PTH explicitly denotes AEC-Q101 qualification, confirming that the device has passed all required stress tests including HTSL, TC, UHAST, and ESD per AEC-Q101 Rev D. This distinguishes it from non-H variants like SF2008PT, which meet industrial specifications but lack automotive reliability validation.
How does SF2008PTH perform at elevated junction temperatures?
At TJ = 125°C, SF2008PTH maintains IF = 20 A capability with VF rising to ≤2.15 V and reverse leakage (IR) remaining ≤400 µA per diode. Its derating curve shows linear current reduction above 100°C case temperature, supporting 15 A continuous at 125°C case - verified in thermal cycling and high-temp life testing.
Can SF2008PTH be used in freewheeling applications with inductive loads?
Yes, SF2008PTH is specifically designed for freewheeling applications, as confirmed by its 35 ns reverse recovery time and 180 A surge rating. In IGBT/MOSFET-based motor drives, it safely clamps inductive kickback with minimal voltage overshoot due to low Qrr and controlled soft recovery - reducing EMI and gate driver stress compared to standard fast rectifiers.
SF2008PTH 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):
- 600 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 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
SF2008PTH FAQ
1.How can I place an order for SF2008PTH through Aetrix?
Please submit a Request for Quotation (RFQ) for SF2008PTH 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 SF2008PTH reliable?
The price and inventory of SF2008PTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF2008PTH is usually 5 days.
3.What payment methods are accepted for SF2008PTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF2008PTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF2008PTH?
SF2008PTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF2008PTH 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 SF2008PTH?
For technical support, including SF2008PTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF2008PTH requirements.
6.How does Aetrix verify that SF2008PTH is sourced from the original manufacturer or authorized distributors?
All SF2008PTH 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 SF2008PTH meets industry standards.
7.What is the process for return or replacement of SF2008PTH?
All SF2008PTH units undergo pre-shipment inspection (PSI). If there is an issue with SF2008PTH, 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 SF2008PTH part is unused and in its original packaging.
Return procedure for SF2008PTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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