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Taiwan Semiconductor Corporation 1.5KE8.2A R0G
- Part No.:
- 1.5KE8.2A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2A R0G.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,686
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Product details
Overview
1.5KE8.2A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 7.79–8.61 V breakdown voltage (VBR), 7.02 V working stand-off voltage (VWM), and 130 V clamping voltage (VC) at 200 A peak pulse current. It protects automotive power rails and industrial I/O interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE8.2A R0G datasheet, 1.5KE8.2A R0G pinout, 1.5KE8.2A R0G application, or 1.5KE8.2A R0G equivalent, key selection criteria include clamping performance under 10/1000 µs surge, low leakage (<1 µA above 10 V), AEC-Q101 qualification status, and DO-201 thermal derating behavior at elevated ambient temperatures.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry while holding voltage across protected nodes ≤130 V. Its <1 ps response time ensures protection before sensitive ICs experience overvoltage stress.
Designed for automotive-grade reliability, the 1.5KE8.2A R0G meets AEC-Q101 requirements and supports ISO 7637-2 compliance without external circuitry. Its DO-201 package provides 5 W steady-state power dissipation at 75 °C lead temperature with 0.375" copper pad mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10 mA | 7.79–8.61 V - defines minimum and maximum avalanche onset voltage under standard test conditions |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPP = 200 A | 130 V - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPK | 1500 W - peak pulse power handling capability per single non-repetitive 10/1000 µs waveform |
| IPP | 200 A - maximum peak impulse current the device can safely clamp without failure |
| Junction Temp Range | −55 to +175 °C - enables operation in under-hood automotive and industrial environments |
| Leakage @ VWM | <1 µA - ensures minimal power loss and signal integrity in always-on circuits |
Pinout & Package
DO-201 axial-leaded package with cathode band marking; 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 | Connected to system ground or low-side return path; carries full surge current during clamping |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V battery rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use with extended temperature cycling and mechanical robustness testing |
| 1500 W surge rating | Handles high-energy transients common in 12 V vehicle electrical systems without degradation |
| Clamping voltage ≤130 V | Ensures downstream 5 V or 3.3 V logic remains within absolute maximum ratings during ISO 7637-2 Pulse 2a |
| Low dynamic impedance | Minimizes VC rise under fast-rising surges, improving protection margin for fast-edge digital signals |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery feed to body control module exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS placed between battery rail and ground to clamp transients before they reach LDOs and microcontrollers. Use Value: Limits voltage to ≤130 V during 10/1000 µs ISO 7637-2 Pulse 2a, preventing latch-up or gate oxide damage in 3.3 V MCU power domains. | Use Scenario: 4–20 mA current loop input of PLC analog input card subjected to ESD and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS installed across input terminals to absorb fast transients before signal conditioning op-amps. Use Value: Sub-1 ps response ensures clamping initiates before 15 kV ESD event reaches amplifier inputs, preserving measurement accuracy. |
| LED Driver Overvoltage Protection | DC Power Supply Input Stage |
Use Scenario: Constant-current LED driver board powered from 24 V DC supply in outdoor signage, subject to lightning-induced surges. IC Role / Device Role / Timing Role: TVS placed at DC input to protect MOSFET gate drivers and current-sense resistors. Use Value: 1500 W rating sustains multiple 10/1000 µs surges up to 200 A without parametric shift, extending field life. | Use Scenario: Input stage of industrial AC/DC adapter where rectified DC bus may experience switching transients. IC Role / Device Role / Timing Role: Primary surge suppression element before bulk capacitor and PFC controller. Use Value: 7.02 V VWM allows reliable operation with 5 V or 3.3 V bias rails while blocking normal-mode noise below clamping threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPK (600 W), smaller SMB package, 8.0 V nominal VBR, 12.8 V VC @ 49.2 A | Not rated for AEC-Q101; limited to consumer/industrial use; lower surge energy handling | Select when space-constrained PCB layout requires SMT and surge energy is ≤600 W |
| 1.5KE8.2CA | Bidirectional variant; same VBR range but symmetrical clamping in both polarities; identical DO-201 package | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485) | Choose only if bidirectional protection is needed; otherwise 1.5KE8.2A R0G offers superior unidirectional clamping margin |
Compared with SMBJ8.0A, the 1.5KE8.2A R0G delivers 2.5× higher surge power handling and automotive qualification; compared with 1.5KE8.2CA, it provides tighter unidirectional clamping and avoids unnecessary bidirectional capacitance in DC rail protection.
Availability
1.5KE8.2A R0G is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and LED driver designs requiring stable component supply with long-term lifecycle support and traceable sourcing.
Supply support for 1.5KE8.2A 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 with global distribution and AEC-Q101 validation capability.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing robust clamping, thermal stability in DO-201, and compliance with ISO 7637-2 immunity standards.
FAQ
What is the clamping voltage of the 1.5KE8.2A R0G under a 200 A 10/1000 µs surge?
The 1.5KE8.2A R0G has a maximum clamping voltage (VC) of 130 V when subjected to a 200 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that protected circuitry sees no more than 130 V during such a transient event, making the 1.5KE8.2A R0G suitable for safeguarding 5 V and 3.3 V logic rails in automotive and industrial applications.
Is the 1.5KE8.2A R0G AEC-Q101 qualified?
Yes, the 1.5KE8.2A R0G is AEC-Q101 qualified. The "A" suffix in the part number indicates the AEC-Q101-compliant version, and Taiwan Semiconductor explicitly lists this qualification in the product family documentation. This certification confirms the 1.5KE8.2A R0G has passed stress tests for temperature cycling, humidity, mechanical shock, and lifetime reliability required for automotive under-hood and chassis applications.
What is the working stand-off voltage (VWM) of the 1.5KE8.2A R0G, and why does it matter?
The working stand-off voltage (VWM) of the 1.5KE8.2A R0G is 7.02 V. This parameter defines the maximum continuous reverse voltage the device can block without entering avalanche conduction. It matters because VWM must exceed the normal operating voltage of the protected line-e.g., a 5 V rail-to prevent leakage or false triggering, while remaining low enough to ensure timely clamping during overvoltage events. The 1.5KE8.2A R0G's 7.02 V VWM makes it ideal for 5 V and 6 V systems.
How does the 1.5KE8.2A R0G differ from the 1.5KE8.2CA variant?
The 1.5KE8.2A R0G is unidirectional, meaning it clamps only in reverse bias and conducts forward current like a standard diode; the 1.5KE8.2CA is bidirectional and clamps symmetrically in both directions. Both share identical VBR (7.79–8.61 V), VC, and DO-201 packaging, but the 1.5KE8.2CA introduces higher junction capacitance and is intended for AC or floating signal lines. For DC power rail protection, the 1.5KE8.2A R0G is preferred due to its lower leakage and optimized unidirectional response.
What is the thermal derating behavior of the 1.5KE8.2A R0G above 25 °C ambient?
The 1.5KE8.2A R0G follows a linear derating curve for peak pulse power: above 25 °C ambient, its 1500 W rating decreases per Taiwan Semiconductor's Fig.2. At 75 °C ambient, it retains ~70% of rated power (~1050 W), and at 125 °C, ~40% (~600 W). Steady-state power dissipation is rated at 5 W at 75 °C lead temperature with 0.375" copper pad mounting. These derating curves are critical for under-hood automotive designs where ambient temperatures exceed 85 °C.
1.5KE8.2A 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 130A
- 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
1.5KE8.2A R0G FAQ
1.How can I place an order for 1.5KE8.2A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2A 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 1.5KE8.2A R0G reliable?
The price and inventory of 1.5KE8.2A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2A R0G?
1.5KE8.2A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2A 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 1.5KE8.2A R0G?
For technical support, including 1.5KE8.2A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2A R0G requirements.
6.How does Aetrix verify that 1.5KE8.2A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2A 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 1.5KE8.2A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2A R0G?
All 1.5KE8.2A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2A 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 1.5KE8.2A R0G part is unused and in its original packaging.
Return procedure for 1.5KE8.2A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2A R0G Tags
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