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Taiwan Semiconductor Corporation 1.5KE15A R0G
- Part No.:
- 1.5KE15A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15A R0G.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:6,969
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Product details
Overview
1.5KE15A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 15 V, minimum VBR 14.3 V at 1.0 mA test current, maximum clamping voltage 21.2 V at 74 A peak pulse current, and working stand-off voltage 12.8 V. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE15A R0G datasheet, 1.5KE15A R0G pinout, 1.5KE15A R0G application, or 1.5KE15A R0G equivalent, key selection criteria include clamping voltage under 74 A surge, leakage current <1 µA above 10 V, AEC-Q101 qualification status, DO-201 mechanical compatibility, and unidirectional polarity marking for correct PCB orientation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR (14.3–15.8 V), it avalanches to limit downstream voltage to ≤21.2 V at 74 A. Its low dynamic impedance ensures rapid energy diversion during 10/1000 µs surges.
Designed for automotive-grade reliability, it meets ISO 7637-2 immunity requirements and supports steady-state power dissipation of 5 W at 75 °C lead temperature. Junction temperature range is –55 °C to +175 °C, and forward voltage is 3.5 V at 50 A for unidirectional operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 14.3–15.8 V - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 12.8 V - maximum continuous DC or RMS voltage the device blocks without conduction |
| VC @ IPP = 74 A | 21.2 V - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPK | 1500 W - peak pulse power handling capability per JEDEC standard waveform |
| IPP | 74 A - maximum non-repetitive peak impulse current the device safely clamps |
| Junction Temp Range | –55 °C to +175 °C - enables use in under-hood automotive and industrial environments |
| Leakage @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with cathode band marking; case meets UL 94V-0 flammability rating; pure tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; forms shunt path during overvoltage |
| Cathode | High-side transient input | Connected to protected line (e.g., 12 V battery rail); marked by band for polarity verification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| Clamping ratio VC/VBR | 1.41 (21.2 V / 15.0 V nominal) - tight ratio minimizes overvoltage margin for sensitive 15 V logic |
| Response time | <1.0 ps - sub-picosecond avalanche onset ensures protection before transient propagation into ICs |
| ISO 7637-2 compliance | Covers Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) |
| Halogen-free | Complies with IEC 61249-2-21 - supports RoHS-compliant manufacturing and end-of-life recycling |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and ground, triggered within <1 ps upon exceeding 14.3 V. Use Value: Limits peak voltage to 21.2 V during 1500 W ISO 7637-2 Pulse 5a events, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Protecting 24 V digital input modules in factory automation controllers from relay-contact bounce and inductive kickback. IC Role / Device Role / Timing Role: Standoff clamp on field-wire interface, blocking normal 24 V signals while diverting >30 V spikes to ground. Use Value: Maintains <1 µA leakage at 12.8 V working voltage, preserving input threshold accuracy while surviving repeated 74 A surges. |
| LED Driver Overvoltage Clamp | DC-DC Converter Input Surge Suppression |
Use Scenario: Safeguarding constant-current LED drivers in outdoor signage against lightning-induced surges on 24–48 V supply lines. IC Role / Device Role / Timing Role: Primary front-end TVS on input rail, operating unidirectionally to avoid reverse-bias leakage in series-string configurations. Use Value: Clamps 10/1000 µs transients to ≤21.2 V, preventing gate oxide rupture in upstream MOSFET controllers and maintaining driver uptime. | Use Scenario: Shielding buck converter ICs from voltage spikes generated by long input traces in telecom power systems. IC Role / Device Role / Timing Role: Fast-acting shunt element placed adjacent to converter VIN pin, activated before internal FETs experience overvoltage stress. Use Value: Achieves 21.2 V clamping at 74 A with 1500 W peak rating, enabling robust design without oversized input capacitors or additional filtering stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ15A | Same DO-214AC (SMA) package; 1500 W rating; VBR min 14.3 V; VC 24.4 V @ 61.5 A - higher clamping voltage, lower peak current | Higher VC reduces margin for 15 V logic; SMA footprint requires PCB redesign vs. DO-201 | Select if surface-mount assembly is required and clamping margin allows 24.4 V |
| Vishay 1.5SMC15A | DO-214AB (SMC) package; 1500 W; VBR min 14.3 V; VC 24.4 V @ 61.5 A - identical clamping spec but larger SMC body | SMC footprint incompatible with DO-201 pad layout; thermal resistance differs due to package geometry | Choose only if existing SMC land pattern exists and board space permits larger outline |
Compared with 1.5KE15A R0G, both alternatives offer equal 1500 W surge rating and matching VBR, but require PCB layout changes due to different packages (SMA/SMC vs. DO-201) and exhibit higher clamping voltage (24.4 V), reducing protection margin for 15 V systems.
Availability
1.5KE15A R0G is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC input modules, LED driver power stages, and DC-DC converter front-ends requiring stable component supply across extended temperature ranges and high-reliability transient immunity.
Supply support for 1.5KE15A 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning devices.
The 1.5KE series was developed specifically for automotive and industrial transient suppression, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust DO-201 packaging for high-power surge handling.
FAQ
What is the clamping voltage of the 1.5KE15A R0G under maximum rated surge current?
The 1.5KE15A R0G has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 74 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream circuitry remains below critical overvoltage thresholds during transient events.
Is the 1.5KE15A R0G AEC-Q101 qualified?
Yes, the 1.5KE15A R0G is AEC-Q101 qualified. The "A" suffix in the part number denotes the AEC-Q101-compliant variant, validated for automotive applications including high-temperature operating life, temperature cycling, and electrostatic discharge testing per the AEC-Q101 standard.
What is the working stand-off voltage (VWM) for the 1.5KE15A R0G?
The working stand-off voltage (VWM) for the 1.5KE15A R0G is 12.8 V. This is the maximum continuous DC or RMS voltage the device can block without entering avalanche conduction, making it suitable for 12 V automotive and industrial systems with appropriate derating margins.
How does the 1.5KE15A R0G differ from the non-A version (1.5KE15)?
The 1.5KE15A R0G features tighter VBR tolerance (14.3–15.8 V) versus 1.5KE15 (13.5–16.5 V), lower leakage current specification, and full AEC-Q101 qualification. The "A" suffix indicates enhanced process control and automotive-grade reliability testing not present in the base 1.5KE15 variant.
What package type does the 1.5KE15A R0G use, and what are its key mechanical properties?
The 1.5KE15A R0G uses the DO-201 axial-leaded package with a cathode band marking. Key mechanical properties include UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002 solderability, JESD 201 Class 2 whisker resistance, and approximate weight of 0.090 g.
1.5KE15A 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 74A
- 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
1.5KE15A R0G FAQ
1.How can I place an order for 1.5KE15A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15A 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 1.5KE15A R0G reliable?
The price and inventory of 1.5KE15A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE15A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15A R0G?
1.5KE15A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15A 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 1.5KE15A R0G?
For technical support, including 1.5KE15A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15A R0G requirements.
6.How does Aetrix verify that 1.5KE15A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE15A 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 1.5KE15A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE15A R0G?
All 1.5KE15A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15A 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 1.5KE15A R0G part is unused and in its original packaging.
Return procedure for 1.5KE15A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15A R0G Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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