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Taiwan Semiconductor Corporation TS4K40
- Part No.:
- TS4K40
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SIP, TS4K
- Datasheet:
-
TS4K40.pdf
- Description:
- BRIDGE RECT 1PHASE 400V 4A TS4K
- Quantity:
- Payment:
- Shipping:
Inventory:8,316
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Product details
Overview
TS4K40 from Taiwan Semiconductor is a 4A, 400V standard quad bridge rectifier in TS4K package, featuring 120A surge capability, <10µA reverse current at 25°C, and UL recognition (E-326243), designed for compact SMPS and AC/DC adapter front-end rectification.
For engineers reviewing the TS4K40 datasheet, TS4K40 pinout, TS4K40 application, or TS4K40 equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward current rating (4A), thermal resistance (5.5°C/W), AEC-Q101 qualification availability, and TS4K mechanical footprint compatibility with PCB-mount designs.
Technical Context
The TS4K40 integrates four silicon diodes in a single-phase bridge configuration with common-cathode/common-anode topology, enabling full-wave AC-to-DC conversion without external interconnects. Its 5.5°C/W junction-to-case thermal resistance supports conduction-cooled operation up to 150°C junction temperature under rated load.
Rated for 4A average forward current and 120A non-repetitive surge (8.3ms half-sine), the device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. Reverse leakage remains ≤10µA at 25°C and ≤500µA at 125°C under rated VRRM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage per diode; defines safe AC input voltage ceiling (e.g., 280V RMS) |
| IF(AV) | 4 A - Continuous average forward current per diode; determines sustained power-handling capacity in rectifier stage |
| IFSM | 120 A - Peak non-repetitive surge current (8.3ms); withstands inrush during cold-start of SMPS |
| RθJC | 5.5 °C/W - Junction-to-case thermal resistance; enables direct heatsink mounting without thermal interface material for moderate-power designs |
| IR @ 25°C | ≤10 µA - Max reverse leakage per diode at rated VRRM; ensures low standby power loss in offline converters |
| TJ max | 150 °C - Maximum junction temperature; allows operation in high-ambient industrial or enclosed adapter environments |
Pinout & Package
Package: TS4K - molded plastic case with matte tin-plated leads, UL 94V-0 rated, 4.00g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | AC Input Terminal 1 | One leg of AC input; connects to primary-side transformer secondary or line filter output |
| AC2 | AC Input Terminal 2 | Second leg of AC input; completes full-wave bridge input path |
| + (Anode Common) | Positive DC Output | Full-wave rectified positive rail; supplies bulk capacitor and downstream converter |
| – (Cathode Common) | Negative DC Output / Ground Reference | Common return node for DC output; ties to bulk capacitor negative and system ground |
Key Features
| Feature | Design Value |
|---|---|
| UL Recognition (E-326243) | Validates safety compliance for end-equipment certification in North America without additional component-level testing |
| AEC-Q101 Qualification Option | Enables use in automotive infotainment and body electronics where reliability under thermal cycling and vibration is required |
| JESD201 Class 2 Whisker Resistance | Prevents tin whisker growth under long-term storage or elevated temperature, ensuring solder joint integrity over product lifetime |
| Halogen-Free (IEC 61249-2-21) | Meets environmental compliance mandates for RoHS-compliant manufacturing and end-of-life recycling |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Front-end rectification in 30–65W offline flyback converters powering consumer electronics. IC Role / Device Role / Timing Role: Quad bridge rectifier converting universal AC input (85–265VAC) to pulsating DC for bulk capacitor charging. Use Value: 4A rating and 120A surge handle startup inrush; low IR (<10µA) minimizes no-load losses meeting Energy Star requirements. | Use Scenario: Compact wall-mounted adapters for laptops, monitors, and set-top boxes. IC Role / Device Role / Timing Role: Primary-side AC/DC conversion stage delivering regulated DC output via isolated feedback loop. Use Value: TS4K package enables low-profile PCB layout; UL recognition simplifies adapter safety certification process. |
| Flat Panel TV Power Supplies | Computer Monitor Power Modules |
Use Scenario: Main power supply rectification in 100–200W LED-backlit LCD/LED TVs with PFC stages. IC Role / Device Role / Timing Role: Secondary rectifier after boost PFC, feeding LLC resonant or QR flyback controller. Use Value: 150°C max junction temperature supports high-density board layouts near heat-generating components. | Use Scenario: Integrated power modules in 50–120W digital monitors with EMI-sensitive video circuits. IC Role / Device Role / Timing Role: Isolated AC/DC conversion block providing +12V, +5V, and +3.3V rails. Use Value: Low VF (≤1.1V @ 4A) reduces conduction loss and improves efficiency; matte tin plating ensures reliable reflow soldering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU4K | Same 4A/400V rating, GBU package (larger footprint, higher RθJC = 7.0°C/W) | Less space-constrained designs; lower thermal performance limits continuous power in sealed enclosures | Select GBU4K only when TS4K footprint is unavailable and thermal margin >2.5°C/W can be accommodated |
| GBU4J | 4A/600V rating; higher VRRM but identical package and thermal specs | Systems requiring higher input voltage derating margin (e.g., 277VAC industrial lines) | Choose GB4J if future-proofing for 600V systems is needed; TS4K40 remains optimal for 400V-rated 230VAC designs |
Compared with GBU4K and GBU4J, the TS4K40 offers superior thermal performance (5.5°C/W vs. 7.0°C/W) and tighter reverse leakage control (<10µA), making it preferred for high-efficiency, space-constrained SMPS where junction temperature management and standby loss are critical.
Availability
TS4K40 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and flat-panel TV power modules requiring stable component supply, consistent lead-time visibility, and long-term lifecycle support.
Supply support for TS4K40 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 since 1979.
The TS4K series was developed specifically for high-reliability, high-volume AC/DC front-end rectification in consumer and industrial power supplies, emphasizing thermal efficiency, safety certification readiness, and RoHS/halogen-free compliance.
FAQ
What is the maximum junction temperature rating for TS4K40?
The TS4K40 has a maximum junction temperature (TJ max) of +150°C, verified per absolute maximum ratings in the official datasheet. This rating allows reliable operation in enclosed power supplies and high-ambient environments. Derating curves confirm usable current capacity down to 0A at 150°C case temperature. The TS4K40 must be mounted with appropriate thermal relief to maintain this limit under full load.
Does TS4K40 meet AEC-Q101 qualification?
The TS4K40 is available in an AEC-Q101 qualified version denoted by the ordering code TS4K40H. Standard TS4K40 (non-H suffix) is not AEC-Q101 qualified. Automotive-grade reliability testing-including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-is only guaranteed for the TS4K40H variant. Always verify the H suffix in the part marking or order code when selecting for automotive applications.
What is the forward voltage drop of TS4K40 at rated current?
The TS4K40 exhibits a maximum forward voltage (VF) of 1.1 V per diode at IF = 4 A and TJ = 25°C, measured under pulsed conditions (PW = 0.3 ms). At 2 A, VF is ≤1.0 V. These values reflect conduction loss directly impacting efficiency-e.g., ~4.4 W total dissipation across all four diodes at full 4 A load. Thermal design must account for this loss using the specified RθJC = 5.5°C/W.
How is polarity marked on the TS4K40 package?
The TS4K40 uses standardized bridge rectifier polarity marking: a white bar or "+" symbol indicates the positive DC output terminal (+), while the opposite corner is marked "~" or "AC" for alternating input terminals. The cathode common (–) is internally tied to the negative DC output. Mounting orientation must align with PCB silkscreen; incorrect placement causes short-circuit failure. The TS4K40 marking diagram confirms AC1/AC2 inputs are diagonally opposite the +/– outputs.
What packaging options are available for TS4K40?
The TS4K40 is supplied in tube packaging: 20 units per tube. Both standard (TS4K40) and AEC-Q101 qualified (TS4K40H) versions use identical TS4K packaging and tube format. Tape-and-reel is not offered for this part number. Tube packaging supports manual and semi-automated assembly; lead finish is matte tin per J-STD-002, ensuring compatibility with standard SnPb and lead-free reflow profiles.
TS4K40 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):
- 4 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 4 A
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS4K
TS4K40 FAQ
1.How can I place an order for TS4K40 through Aetrix?
Please submit a Request for Quotation (RFQ) for TS4K40 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 TS4K40 reliable?
The price and inventory of TS4K40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS4K40 is usually 5 days.
3.What payment methods are accepted for TS4K40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS4K40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS4K40?
TS4K40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS4K40 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 TS4K40?
For technical support, including TS4K40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS4K40 requirements.
6.How does Aetrix verify that TS4K40 is sourced from the original manufacturer or authorized distributors?
All TS4K40 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 TS4K40 meets industry standards.
7.What is the process for return or replacement of TS4K40?
All TS4K40 units undergo pre-shipment inspection (PSI). If there is an issue with TS4K40, 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 TS4K40 part is unused and in its original packaging.
Return procedure for TS4K40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS4K40 Tags
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