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Taiwan Semiconductor Corporation 1.5KE250A R0G
- Part No.:
- 1.5KE250A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE250A R0G.pdf
- Description:
- TVS DIODE 214VWM 344VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,307
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Product details
Overview
1.5KE250A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 250V, clamping voltage 344V at 4.5A peak pulse current, and working stand-off voltage 214V. It protects automotive power electronics and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE250A R0G datasheet, 1.5KE250A R0G pinout, 1.5KE250A R0G application, or 1.5KE250A R0G equivalent, this page delivers verified electrical specs, DO-201 terminal mapping, real-world protection use cases, and validated alternative parts for high-voltage surge immunity design.
Technical Context
The 1.5KE250A R0G operates as a unidirectional avalanche diode, triggering at VBR = 237–263V (tested at 1mA), clamping transients to ≤344V at IPP = 4.5A under 10/1000μs waveform. Its low dynamic impedance and <1.0ps response time enable fast suppression of ESD and load-dump spikes.
Designed for AEC-Q101 compliance, it supports junction temperatures from –55°C to +175°C, meets UL 94V-0 flammability, and features pure tin-plated leads per J-STD-002. Polarity is marked by cathode band; bidirectional variants use "CA" suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 237–263V - precise avalanche threshold ensures reliable turn-on before system damage |
| VWM | 214V - maximum continuous reverse voltage without leakage exceeding 1μA |
| VC @ IPP = 4.5A | 344V - clamped voltage during 10/1000μs surge defines worst-case stress on downstream ICs |
| PPK | 1500W - peak pulse power rating determines survivability against ISO 7637-2 Pulse 5a load dump |
| IPP (10/1000μs) | 4.5A - peak impulse current capacity directly maps to transient energy absorption capability |
| Junction Temp Range | –55°C to +175°C - enables deployment in under-hood automotive and industrial motor drive environments |
| Package | DO-201 - axial-leaded through-hole package with 0.090g mass, UL 94V-0 molding compound |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node for unidirectional clamping | Connected to circuit ground; absorbs positive transients between cathode and ground |
| Cathode | Protected line input node | Connected to power rail or signal line; conducts surge current to ground when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 1500W peak pulse power | Enables single-device protection against automotive load-dump events (ISO 7637-2 Pulse 5a) |
| Clamping voltage ≤344V | Limits voltage stress on 300V-rated MOSFETs and gate drivers in 24V systems |
| Response time <1.0ps | Suppresses ESD and fast transients before logic-level ICs experience latch-up |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring zero-failure reliability |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU environmental directives for industrial and automotive production |
Applications
| Automotive Power Input Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: 24V battery feed to engine control unit exposed to ISO 7637-2 Pulse 5a load dump (120V, 400ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping surges before they reach primary regulator. Use Value: Withstands 1500W peak power and clamps to 344V, protecting 40V-input buck converters and preventing brownout-induced MCU resets. | Use Scenario: 4–20mA current loop input on programmable logic controller subjected to field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted across input terminals to shunt transients before precision op-amp front-end. Use Value: Low leakage (<1μA at 214V) avoids offset error in μA-level current sensing; 344V clamping preserves 36V-rated input protection ICs. |
| LED Driver Overvoltage Clamp | Motor Drive Gate Driver Surge Suppression |
Use Scenario: Constant-current LED string driver in streetlight fixture experiencing lightning-induced line surges on AC mains input. IC Role / Device Role / Timing Role: TVS placed across bulk capacitor input to clamp AC-line transients before bridge rectifier and PFC stage. Use Value: 214V working voltage matches 200–230VAC RMS designs; 344V clamping prevents overvoltage failure of 400V electrolytic capacitors. | Use Scenario: High-side gate driver IC in 3-phase inverter subjected to Miller-induced dv/dt spikes and shoot-through transients. IC Role / Device Role / Timing Role: TVS connected between gate and source of power MOSFET to clamp gate oxide-threatening spikes. Use Value: Sub-nanosecond response captures fast dv/dt events; 344V clamping stays below 400V gate-source absolute max rating of common SiC drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ250A | Same 250V nominal, DO-214AC package, 400W rating (vs. 1500W), 400V clamping at 3.8A | Lower power handling limits use to sub-100W systems; surface-mount only | Select when board space constraints prohibit axial DO-201 and surge energy is ≤400W |
| ON Semiconductor 1N6283A | 33V nominal, DO-201, same 1500W rating but lower VBR (31.4–34.7V); not voltage-compatible | Designed for 24V logic rails, not 200+V power lines | Use only for lower-voltage circuits; not a functional substitute for 1.5KE250A R0G |
Compared with SMAJ250A, the 1.5KE250A R0G delivers 3.75× higher surge power handling and axial through-hole mounting for high-reliability power stages; compared with 1N6283A, it provides correct 250V standoff and clamping for 200–400V industrial bus protection where lower-voltage alternatives would fail catastrophically.
Availability
1.5KE250A R0G is available at Aetrix Electronics and suitable for automotive power input protection, industrial PLC analog input hardening, LED driver overvoltage clamping, and motor drive gate driver surge suppression requiring stable component supply across extended temperature and high-energy transient conditions.
Supply support for 1.5KE250A R0G 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers for automotive, industrial, and consumer markets.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments-targeting ISO 7637-2 compliance, AEC-Q101 qualification, and robust DO-201 packaging for under-hood and factory-floor deployment.
FAQ
What is the breakdown voltage range of the 1.5KE250A R0G?
The 1.5KE250A R0G has a guaranteed breakdown voltage range of 237V to 263V at test current IT = 1mA, per Taiwan Semiconductor's O2104 datasheet revision. This tight ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage margining in 200–250V system designs.
Does the 1.5KE250A R0G meet AEC-Q101 requirements?
Yes, the 1.5KE250A R0G is AEC-Q101 qualified, as confirmed in the ordering information section of the Taiwan Semiconductor 1.5KE series datasheet (Version O2104). This qualification validates its suitability for automotive powertrain, chassis, and body electronics applications requiring zero-defect reliability under thermal cycling, humidity, and mechanical stress.
What is the clamping voltage of the 1.5KE250A R0G at its rated peak pulse current?
The 1.5KE250A R0G clamps to a maximum of 344V at IPP = 4.5A under the standard 10/1000μs double-exponential surge waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Is the 1.5KE250A R0G unidirectional or bidirectional?
The 1.5KE250A R0G is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in the part number. It conducts only during positive transients on the cathode relative to anode and must be installed with correct polarity-cathode toward the protected line, anode to ground-to function as intended.
What package type does the 1.5KE250A R0G use, and what are its key mechanical properties?
The 1.5KE250A R0G uses the DO-201 axial-leaded package: cylindrical epoxy body with cathode band marking, pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability rating, and 0.090g typical weight. Its lead finish passes JESD 201 Class 2 whisker testing, ensuring long-term reliability in vibration-prone environments.
1.5KE250A R0G 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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-201
1.5KE250A R0G FAQ
1.How can I place an order for 1.5KE250A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE250A R0G 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 1.5KE250A R0G reliable?
The price and inventory of 1.5KE250A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE250A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE250A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE250A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE250A R0G?
1.5KE250A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE250A R0G 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 1.5KE250A R0G?
For technical support, including 1.5KE250A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE250A R0G requirements.
6.How does Aetrix verify that 1.5KE250A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE250A R0G 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 1.5KE250A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE250A R0G?
All 1.5KE250A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE250A R0G, 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 1.5KE250A R0G part is unused and in its original packaging.
Return procedure for 1.5KE250A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE250A R0G Tags
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Diodes Incorporated
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