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Taiwan Semiconductor Corporation 1.5KE250C
- Part No.:
- 1.5KE250C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE250C.pdf
- Description:
- 1500W, 250V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,681
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Product details
Overview
1.5KE250C from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 250V, clamping voltage 360V at 4.3A peak pulse current, and working stand-off voltage 202V. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE250C datasheet, 1.5KE250C pinout, 1.5KE250C application, or 1.5KE250C equivalent, this page delivers verified electrical parameters, polarity marking guidance, thermal derating behavior, junction capacitance data, and AEC-Q101-qualified alternatives for ESD and inductive switching surge protection.
Technical Context
The 1.5KE250C operates as a bidirectional avalanche diode, conducting symmetrically in both polarities above its 225–275V breakdown range (tested at 1mA). Its low dynamic impedance enables rapid clamping response-typically under 5.0ns from 0V to VBR-and it sustains 1500W peak pulse power per 10/1000μs waveform without degradation.
Designed for unclamped inductive load switching and automotive supply line protection, it meets ISO 7637-2 immunity requirements across all five defined pulses. Its junction temperature range spans –55°C to +175°C, and it features pure tin-plated leads compliant with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 225V / 275V - Ensures reliable conduction onset within ±10% of nominal 250V across production lot |
| VWM | 202V - Maximum continuous reverse operating voltage before leakage exceeds 1μA |
| VC@IPP | 360V at 4.3A - Clamped voltage during 10/1000μs surge defines worst-case rail overvoltage seen by downstream ICs |
| PPK | 1500W - Peak pulse power rating determines survivability against high-energy transients like load dump |
| Junction Temp | –55°C to +175°C - Enables deployment in under-hood automotive environments and industrial motor drives |
| Leakage @ VWM | <1μA - Minimizes standby power loss and avoids false triggering in high-impedance sensing circuits |
| Temp Coeff. | 0.110%/°C - Predictable VBR drift supports stable clamping margin across temperature extremes |
Pinout & Package
DO-201 axial-leaded package with cathode band marking for unidirectional variants; 1.5KE250C is bidirectional and marked with part number only (no polarity band). Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going surges; symmetrical with cathode in bidirectional operation |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going surges; identical avalanche characteristics to anode side |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPP performance in both directions eliminates need for polarity-aware PCB layout |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) waveforms |
| AEC-Q101 qualification | Stress-tested for automotive reliability including HTOL, TC, UHAST, and mechanical shock per AEC standard |
| Low clamping ratio | VC/VBR ≈ 1.39 - Tight ratio ensures minimal overvoltage margin between clamping and protected IC absolute maximum ratings |
| Halogen-free construction | Meets IEC 61249-2-21 - Supports RoHS-compliant manufacturing and end-of-life recycling requirements |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 24V/48V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input rail, placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤360V during 1500W surges, preventing latch-up or gate oxide rupture in downstream Si MOSFETs and PMICs. | Use Scenario: Safeguarding PLC I/O modules connected to solenoid valves and contactors subject to inductive kickback. IC Role / Device Role / Timing Role: Bidirectional TVS across relay coil terminals and field wiring inputs to absorb stored magnetic energy. Use Value: Clamps reverse flyback spikes to 360V within 5ns, eliminating need for separate freewheeling diodes and reducing board space by 30%. |
| LED Streetlight Driver Input | Telecom Power Supply Surge Protection |
Use Scenario: Front-end protection for constant-current LED drivers exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Secondary surge clamp after MOV, handling residual fast-rising transients that bypass bulk suppression. Use Value: Responds in <5ns to sub-microsecond edges, suppressing 1kV/μs transients that would otherwise couple through transformer parasitics into secondary-side controllers. | Use Scenario: DC feed protection in 48V telecom rectifiers subjected to POTS line coupling and switching surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on -48V return path to maintain common-mode immunity during differential-mode transients. Use Value: Maintains <1μA leakage at 202V, avoiding bias current errors in precision current-sense amplifiers monitoring -48V rail integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250CA | DO-214AA package, 600W rating, lower VC (356V), higher IPP (5.3A) | Surface-mount only; unsuitable for through-hole legacy designs or high-vibration environments requiring axial lead retention | Select when board space is constrained and 600W surge capacity suffices; verify thermal pad layout for SMB footprint |
| 1.5KE250A | Tighter VBR tolerance (237–263V vs. 225–275V); same DO-201 package and 1500W rating | Same mounting and layout; preferred where tighter clamping consistency is required for narrow-voltage-margin systems | Choose for enhanced VBR uniformity in production batches without changing PCB or assembly process |
Compared with 1.5KE250C, SMBJ250CA offers smaller footprint but reduced surge energy handling, while 1.5KE250A provides tighter breakdown control at identical power and package-making it ideal for high-reliability automotive modules where VBR distribution impacts system-level fault coverage.
Availability
1.5KE250C is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O conditioning, and telecom DC feed surge suppression requiring stable component supply, long-term lifecycle continuity, and AEC-Q101-qualified traceability.
Supply support for 1.5KE250C 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 TVS diodes, rectifiers, and power MOSFETs for automotive and industrial markets.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh automotive and industrial environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust DO-201 packaging for mechanical reliability.
FAQ
What is the breakdown voltage range of the 1.5KE250C?
The 1.5KE250C has a guaranteed breakdown voltage range of 225V to 275V at 1mA test current, corresponding to ±10% tolerance around its nominal 250V rating. This range is validated per JEDEC test conditions and reflects production lot variation-not temperature drift or aging effects. The 1.5KE250C maintains this specification across its full operating temperature range of –55°C to +175°C.
Is the 1.5KE250C unidirectional or bidirectional?
The 1.5KE250C is a bidirectional TVS diode, meaning it provides symmetrical clamping in both forward and reverse polarities. Unlike unidirectional variants (e.g., 1.5KE250), the 1.5KE250C does not feature a cathode band marking and exhibits identical VBR, VC, and IPP characteristics in either direction-critical for protecting AC-coupled or floating signal lines.
What is the clamping voltage of the 1.5KE250C at its rated peak pulse current?
The 1.5KE250C clamps to a maximum of 360V at its specified peak pulse current of 4.3A, measured under the standard 10/1000μs double-exponential waveform. This value represents the worst-case voltage imposed on protected circuitry during a full 1500W transient event and is used directly in system-level overvoltage margin calculations for downstream ICs.
Does the 1.5KE250C meet AEC-Q101 qualification?
The base 1.5KE250C variant is not AEC-Q101 qualified; however, the AEC-Q101-compliant version is designated 1.5KE250CH (with "H" suffix). TSC documents AEC-Q101 testing-including HTOL, temperature cycling, and mechanical shock-for the "H" variants only. For automotive applications requiring qualification evidence, specify 1.5KE250CH instead of 1.5KE250C.
What package type does the 1.5KE250C use, and what are its key mechanical properties?
The 1.5KE250C uses the DO-201 axial-leaded package with pure tin-plated leads compliant with J-STD-002 solderability requirements. Its molding compound meets UL 94V-0 flammability rating, and it passes JESD201 Class 2 whisker testing. The device weighs approximately 0.090g and is marked with the full part number-no polarity band, consistent with its bidirectional function.
1.5KE250C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 202V
- Voltage - Breakdown (Min):
- 225V
- Voltage - Clamping (Max) @ Ipp:
- 360V
- Current - Peak Pulse (10/1000µs):
- 4.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE250C FAQ
1.How can I place an order for 1.5KE250C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE250C 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 1.5KE250C reliable?
The price and inventory of 1.5KE250C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE250C is usually 5 days.
3.What payment methods are accepted for 1.5KE250C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE250C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE250C?
1.5KE250C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE250C 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 1.5KE250C?
For technical support, including 1.5KE250C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE250C requirements.
6.How does Aetrix verify that 1.5KE250C is sourced from the original manufacturer or authorized distributors?
All 1.5KE250C 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 1.5KE250C meets industry standards.
7.What is the process for return or replacement of 1.5KE250C?
All 1.5KE250C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE250C, 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 1.5KE250C part is unused and in its original packaging.
Return procedure for 1.5KE250C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE250C Tags
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