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Taiwan Semiconductor Corporation TS20K40-T
- Part No.:
- TS20K40-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, TS4K
- Datasheet:
-
TS20K40-T.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 20A TS4K
- Quantity:
- Payment:
- Shipping:
Inventory:1,852
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Product details
Overview
TS20K40-T from Taiwan Semiconductor is a 20A, 400V standard single-phase bridge rectifier in TS4K package with in-line circuit configuration, ultra-low reverse leakage (≤5 μA at 25°C), 220A surge capability, and UL Recognized (E-326243) construction-used in on-board chargers and AC-to-DC front-end conversion.
For engineers reviewing the TS20K40-T datasheet, TS20K40-T pinout, TS20K40-T application, or TS20K40-T equivalent, key selection factors include repetitive peak reverse voltage (400 V), forward current rating (20 A), thermal resistance (RθJL = 1.3 °C/W), junction temperature range (–55 to +150 °C), and TS4K mechanical compatibility for PCB mounting.
Technical Context
The TS20K40-T integrates four silicon diodes in a single-phase full-wave bridge configuration with in-line terminal layout. Its design supports high-reliability AC input rectification where low conduction loss (VF = 1.05 V max at 10 A, 25°C) and robust surge handling (IFSM = 220 A, 8.3 ms) are required.
Thermal performance is optimized for heatsink-mounted operation: RθJC = 1.2 °C/W and RθJL = 1.3 °C/W when mounted on a 4" × 6" × 0.25" aluminum plate. Reverse leakage remains tightly controlled (≤47 μA at 125°C), supporting stable operation in elevated ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage per diode; defines safe AC input peak voltage handling (e.g., ≤280 VRMS) |
| IF | 20 A - Continuous average forward current; determines steady-state power delivery capacity in rectifier stage |
| IFSM | 220 A - Non-repetitive surge current (8.3 ms half-sine); enables reliable inrush tolerance during AC line startup |
| VF | 1.05 V max @ 10 A, 25°C - Forward voltage drop per diode; directly impacts conduction loss and thermal load |
| RθJL | 1.3 °C/W - Junction-to-lead thermal resistance; critical for estimating temperature rise under lead-mounted conditions |
| IR | ≤5 μA @ 25°C - Reverse leakage per diode; ensures minimal standby power loss and voltage hold-up integrity |
| TJ max | +150 °C - Maximum junction temperature; sets upper thermal limit for derating curves and system-level thermal design |
Pinout & Package
TS20K40-T uses the TS4K package: molded plastic case meeting UL 94V-0, matte tin-plated leads compliant with J-STD-002 solderability, and polarity marked on device body. Mounting torque ≤0.78 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC input terminal 1 | One of two AC input nodes; connects to live/neutral side of transformer secondary or AC line |
| ~ (AC2) | AC input terminal 2 | Second AC input node; completes full-wave bridge input path with AC1 |
| + | Positive DC output | Full-wave rectified anode output; supplies filtered DC bus to downstream capacitors and regulators |
| – | Negative DC output / common cathode reference | Full-wave rectified cathode return; serves as DC ground reference for output stage |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognition (E-326243) | Validated safety compliance for end-equipment certification in industrial and consumer AC/DC systems |
| 220 A IFSM surge rating | Enables robust operation during repeated cold-start events without degradation or failure |
| ≤5 μA reverse leakage at 25°C | Minimizes standby power loss and improves voltage regulation in no-load or light-load conditions |
| TS4K package with JESD201 Class 1 whisker resistance | Ensures long-term solder joint reliability in automotive and industrial temperature-cycled environments |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for PCB assembly and end-product disposal |
Applications
| On-Board Charger (OBC) | Industrial AC/DC Power Supply |
|---|---|
Use Scenario: Rectifying 3-phase or split-phase AC input (e.g., 240 VRMS) into unregulated DC bus prior to PFC and DC/DC stages in EV charging systems. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element; functions as passive full-wave bridge with fixed polarity output. Use Value: 400 V VRRM safely accommodates 280 Vpeak input; 20 A IF supports typical OBC power levels up to ~5.6 kW (240 V × 20 A × 0.8 PF). | Use Scenario: Front-end rectification in DIN-rail or open-frame industrial power supplies feeding motor drives or PLCs. IC Role / Device Role / Timing Role: Standard bridge rectifier providing isolated DC bus; mounted directly to heatsink via TS4K case. Use Value: RθJC = 1.2 °C/W enables efficient thermal coupling to heatsink; 150 °C TJmax supports operation in high-ambient enclosures (e.g., 70 °C ambient + 80 °C rise). |
| LED Driver Input Stage | Appliance Power Module |
Use Scenario: Converting mains AC to DC for constant-current LED drivers in commercial lighting fixtures. IC Role / Device Role / Timing Role: Mains-side rectifier delivering bulk DC to HV buck or flyback controller ICs. Use Value: Ultra-low IR (≤5 μA) reduces no-load power consumption below regulatory thresholds (e.g., ENERGY STAR); UL recognition simplifies fixture safety certification. | Use Scenario: Embedded power conversion in white goods (refrigerators, washing machines) requiring compact, reliable AC input rectification. IC Role / Device Role / Timing Role: Discrete bridge rectifier integrated into main control board's power section. Use Value: TS4K footprint allows direct PCB mounting without additional heatsinking; RoHS/halogen-free compliance meets IEC 60335 appliance safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20BQ040 | 20 A, 400 V Schottky bridge; lower VF (~0.55 V) but higher IR (100 μA @ 25°C) | Better efficiency at light loads; unsuitable for >125°C ambient due to thermal runaway risk | Select for high-frequency, low-loss designs where leakage and temperature stability are secondary |
| ON Semiconductor GBPC2004 | 20 A, 400 V standard bridge; same VRRM/IF, but GBPC package (larger, stud-mount) and higher RθJA (12 °C/W) | Requires mechanical mounting hardware; less suitable for dense SMT layouts | Select when existing heatsink interface matches GBPC footprint or higher I2t (250 A²s) is needed |
Compared with VS-20BQ040 and GBPC2004, the TS20K40-T offers superior thermal resistance (RθJL = 1.3 °C/W), tighter reverse leakage control, and TS4K surface-mount compatibility-making it optimal for space-constrained, thermally managed AC/DC converters requiring long-term reliability.
Availability
TS20K40-T is available at Aetrix Electronics and suitable for on-board chargers, industrial AC/DC power supplies, and LED driver input stages requiring stable component supply, UL-recognized safety compliance, and consistent thermal performance across production volumes.
Supply support for TS20K40-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, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and consumer markets.
The TS20K series targets cost-sensitive, high-volume AC/DC front-end applications where reliability, safety certification, and thermal robustness are prioritized over ultra-low forward voltage-designed specifically for board-level integration in chargers, power adapters, and appliance controls.
FAQ
What is the maximum junction temperature rating for the TS20K40-T?
The TS20K40-T has a maximum junction temperature (TJ) of +150 °C, as specified in its Absolute Maximum Ratings table. This rating applies under continuous operation with appropriate thermal management. Derating curves in the datasheet define allowable forward current reduction above +25 °C ambient, ensuring safe operation within this thermal limit. The TS20K40-T must not exceed +150 °C at the die junction during any operating condition.
Does the TS20K40-T have UL recognition, and what is the file number?
Yes, the TS20K40-T is UL Recognized under file number E-326243. This certification confirms compliance with UL 60950-1 and UL 62368-1 for use in end equipment requiring safety-agency approval. The recognition covers the TS4K package construction, flammability rating (UL 94V-0), and terminal plating-validating suitability for commercial and industrial AC/DC power applications.
What is the forward voltage drop specification for the TS20K40-T at rated current?
The TS20K40-T specifies a maximum forward voltage (VF) of 1.05 V per diode at IF = 10 A and TJ = 25 °C, measured under pulsed conditions (PW = 0.3 ms). At elevated junction temperature (125 °C), VF decreases to 0.88 V typical. This parameter directly determines conduction loss and thermal dissipation in the TS20K40-T during continuous operation.
Is the TS20K40-T RoHS and halogen-free compliant?
Yes, the TS20K40-T is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. The molding compound contains no brominated or chlorinated flame retardants, and all terminals meet EU RoHS Directive 2011/65/EU restrictions on lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. This compliance supports environmentally regulated markets and end-product disposal requirements.
What is the surge current rating of the TS20K40-T, and how is it defined?
The TS20K40-T has a non-repetitive surge peak forward current (IFSM) rating of 220 A for a single 8.3 ms half-sine waveform superimposed on rated load. It also supports 580 A for 1.0 ms duration. These values reflect short-duration inrush tolerance during AC line energization and are validated per JEDEC JESD22-A112. Surge capability is critical for reliability in applications like motor start-up or capacitor charging.
TS20K40-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SIP, TS4K
- Packaging:
- Tube
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 400 V
- Current - Average Rectified (Io):
- 20 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.05 V @ 10 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS4K
TS20K40-T FAQ
1.How can I place an order for TS20K40-T through Aetrix?
Please submit a Request for Quotation (RFQ) for TS20K40-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 TS20K40-T reliable?
The price and inventory of TS20K40-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS20K40-T is usually 5 days.
3.What payment methods are accepted for TS20K40-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS20K40-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS20K40-T?
TS20K40-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS20K40-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 TS20K40-T?
For technical support, including TS20K40-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS20K40-T requirements.
6.How does Aetrix verify that TS20K40-T is sourced from the original manufacturer or authorized distributors?
All TS20K40-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 TS20K40-T meets industry standards.
7.What is the process for return or replacement of TS20K40-T?
All TS20K40-T units undergo pre-shipment inspection (PSI). If there is an issue with TS20K40-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 TS20K40-T part is unused and in its original packaging.
Return procedure for TS20K40-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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