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Taiwan Semiconductor Corporation 1V5KE250CA
- Part No.:
- 1V5KE250CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE250CA.pdf
- Description:
- TVS DIODE 214VWM 344VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:4,654
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Product details
Overview
1V5KE250CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge clamping in power and signal lines. It features a 237–263 V breakdown voltage (VBR), 214 V reverse stand-off voltage (VRWM), 344 V clamping voltage (VC) at 4.5 A peak pulse current, and 1500 W peak pulse power (1 ms). It protects industrial power supplies and telecom interfaces against EFT and lightning-induced transients.
For engineers reviewing the 1V5KE250CA datasheet, 1V5KE250CA pinout, 1V5KE250CA application, or 1V5KE250CA equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, sub-1 μA leakage above 214 V, RoHS/halogen-free compliance, and DO-201 mechanical robustness for through-hole mounting in high-reliability systems.
Technical Context
The 1V5KE250CA operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltages. Its bidirectional structure ensures symmetrical clamping in AC-coupled or floating circuits without polarity sensitivity.
It delivers 1500 W peak pulse power per JEDEC standard (10/1000 µs waveform), with thermal stability up to 175 °C junction temperature and derating to 5 W steady-state dissipation at 75 °C ambient. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 237 V / 263 V - defines guaranteed avalanche conduction onset range under 1 mA test current |
| VRWM | 214 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 344 V @ 4.5 A - clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak surge energy absorption capability per 1 ms pulse (10/1000 µs) |
| IR @ VRWM | <5 µA - ultra-low leakage ensures minimal standby power loss and signal integrity |
| TJ max | 175 °C - enables operation in high-ambient industrial environments without thermal shutdown |
| Package | DO-201 - industry-standard axial-leaded package with 0.090 g mass and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; for 1V5KE250CA (bidirectional), polarity is non-functional - both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Surge current entry (either direction) | Accepts transient energy from either terminal due to bidirectional avalanche symmetry |
| Cathode (Lead 2) | Surge current entry (either direction) | Functionally identical to Anode; no polarity-dependent behavior in CA variant |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (1 ms) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Clamping ratio VC/VBR ≈ 1.36 | Indicates low incremental resistance for efficient energy diversion and minimal overshoot |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with environmental regulations for industrial and telecom equipment manufacturing |
| UL 94V-0 molding compound | Prevents flame propagation in fault conditions, supporting safety-certified designs |
Applications
| AC Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 230 VAC mains input stage of industrial PLC power supply exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across L-N and L/N-PE, absorbing differential and common-mode transients. Use Value: Limits peak voltage to ≤344 V, protecting bridge rectifier and bulk capacitor from catastrophic failure per IEC 61000-4-5. | Use Scenario: T1/E1 data line interface in base station equipment subject to EFT bursts and induced surges. IC Role / Device Role / Timing Role: Bidirectional shunt protector on balanced twisted-pair lines, referenced to chassis ground. Use Value: Maintains signal integrity below 344 V clamping while adding <1 pF capacitance, avoiding data rate degradation. |
| Motor Drive DC Bus | Renewable Energy Inverter |
Use Scenario: DC link between rectifier and IGBT module in HVAC compressor drive, prone to inductive switching spikes. IC Role / Device Role / Timing Role: Snubber-grade TVS across bus rails to clamp turn-off voltage spikes from stray inductance. Use Value: Absorbs 1500 W pulses without degradation, extending IGBT lifetime and reducing need for active snubbers. | Use Scenario: PV string combiner box input where solar arrays induce high-voltage transients during rapid cloud cover changes. IC Role / Device Role / Timing Role: Class II surge protection device mounted upstream of MPPT controller input stage. Use Value: Withstands repeated 10/1000 µs surges up to 4 kV, meeting UL 1741 SA and IEC 61643-32 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250CA | DO-214AA (SMB) package; 250 V VRWM, 356 V VC @ 4.2 A; 600 W PPPM | Lower power rating; suited for space-constrained PCBs but not for 1500 W surge events | Select when board area is critical and surge threat level is ≤Level 3 (2 kV) |
| 1N6299CA | Same DO-201 package; 143–158 V VBR, 207 V VC @ 7.2 A; same 1500 W rating | Lower voltage grade; used for 120 VAC or 48 VDC systems instead of 230 VAC/DC bus | Choose for lower-voltage industrial control systems requiring identical mechanical fit and surge margin |
Compared with SMBJ250CA and 1N6299CA, the 1V5KE250CA uniquely combines DO-201 ruggedness, 214 V stand-off, and full 1500 W rating - making it optimal for high-energy 230 VAC and DC bus protection where thermal mass and lead-frame current handling matter.
Availability
1V5KE250CA is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, motor drive DC buses, and renewable energy inverters requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE250CA 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, serving global industrial, automotive, and consumer markets since 1979.
The 1V5KE series belongs to TSC's high-power TVS portfolio, engineered specifically for robust, cost-effective surge immunity in AC/DC power conversion, motor control, and infrastructure equipment where reliability under repetitive transients is critical.
FAQ
What is the clamping voltage of the 1V5KE250CA under maximum rated surge current?
The 1V5KE250CA has a maximum clamping voltage (VC) of 344 V when subjected to its peak pulse current of 4.5 A (10/1000 µs waveform). This value is measured per JEDEC standards and ensures predictable overvoltage limiting during surge events. The 1V5KE250CA maintains this clamping performance across its specified operating temperature range and after repeated surge exposures, provided derating guidelines are followed.
Is the 1V5KE250CA unidirectional or bidirectional, and how does that affect circuit placement?
The 1V5KE250CA is a bidirectional TVS diode, indicated by the "CA" suffix. Unlike unidirectional variants, it provides symmetrical clamping in both polarities - eliminating orientation concerns during placement. This makes the 1V5KE250CA ideal for AC-coupled lines, transformer-isolated interfaces, or floating DC buses where voltage polarity reversal may occur. No cathode marking is functional for the 1V5KE250CA.
What is the reverse leakage current specification for the 1V5KE250CA at its rated stand-off voltage?
At its reverse stand-off voltage (VRWM) of 214 V, the 1V5KE250CA exhibits a maximum reverse leakage current (IR) of 5 µA at 25 °C. This low leakage preserves system efficiency and avoids false triggering in high-impedance sensing circuits. The 1V5KE250CA maintains sub-10 µA leakage even at elevated temperatures up to 125 °C, ensuring stable performance in demanding environments.
Can the 1V5KE250CA be used in surface-mount designs?
No - the 1V5KE250CA is packaged exclusively in the axial-leaded DO-201 case and is intended for through-hole mounting. It is not compatible with SMT reflow or wave soldering processes. For surface-mount alternatives with comparable voltage ratings, consider the SMAJ250A or SMCJ250A families, though those offer lower peak power (400 W and 1500 W respectively) and different thermal profiles. The 1V5KE250CA requires manual or selective soldering in through-hole assembly.
Does the 1V5KE250CA meet international surge immunity standards such as IEC 61000-4-5?
Yes - the 1V5KE250CA's 1500 W peak pulse power rating (10/1000 µs) directly supports compliance with IEC 61000-4-5 Ed. 3 Level 4 (4 kV line-earth, 2 kV line-line) when properly implemented with appropriate PCB layout and series impedance. Its 344 V clamping voltage ensures protected circuits remain within safe operating limits. The 1V5KE250CA is widely deployed in certified industrial equipment where full-system surge testing is required.
1V5KE250CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 214V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 4.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
1V5KE250CA FAQ
1.How can I place an order for 1V5KE250CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE250CA 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 1V5KE250CA reliable?
The price and inventory of 1V5KE250CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE250CA is usually 5 days.
3.What payment methods are accepted for 1V5KE250CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE250CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE250CA?
1V5KE250CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE250CA 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 1V5KE250CA?
For technical support, including 1V5KE250CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE250CA requirements.
6.How does Aetrix verify that 1V5KE250CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE250CA 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 1V5KE250CA meets industry standards.
7.What is the process for return or replacement of 1V5KE250CA?
All 1V5KE250CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE250CA, 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 1V5KE250CA part is unused and in its original packaging.
Return procedure for 1V5KE250CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE250CA Tags
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