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Taiwan Semiconductor Corporation 1.5KE8.2CAHR0G
- Part No.:
- 1.5KE8.2CAHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2CAHR0G.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:7,794
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Product details
Overview
1.5KE8.2CAHR0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge protection in automotive and industrial systems. It features a nominal breakdown voltage of 8.2V, clamping voltage of 12.5V at 200A peak impulse current, working stand-off voltage of 6.63V, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements.
For engineers reviewing the 1.5KE8.2CAHR0G datasheet, 1.5KE8.2CAHR0G pinout, 1.5KE8.2CAHR0G application, or 1.5KE8.2CAHR0G equivalent, this part delivers verified bidirectional clamping performance, AEC-Q101 qualification, low dynamic impedance, sub-5ns response time, and RoHS/halogen-free compliance - critical for ESD and inductive switching protection in power supply rails and signal lines.
Technical Context
The 1.5KE8.2CAHR0G is a junction-based silicon avalanche diode optimized for unidirectional or bidirectional transient suppression. Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating circuits without polarity sensitivity, with breakdown voltage specified at 7.38V (min) to 9.02V (max) under 10mA test current.
It operates across -55°C to +175°C junction temperature range and sustains 1500W peak pulse power per 10/1000μs waveform. The device exhibits <1μA blocking leakage at 6.63V and a temperature coefficient of VBR at 0.065%/°C - enabling stable clamping behavior over wide thermal conditions in engine control units and lighting drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=10mA | 7.38–9.02V: Ensures reliable avalanche conduction onset within tight tolerance for predictable clamping threshold |
| VWM | 6.63V: Maximum continuous reverse operating voltage before leakage exceeds 1000μA - defines safe DC rail margin |
| VC @ IPP=200A | 12.5V: Clamped voltage during full-rated 1500W surge - limits downstream IC stress to safe levels |
| PPK | 1500W: Peak pulse power handling per 10/1000μs waveform - supports automotive load dump and ISO 7637-2 transients |
| Response Time | <5.0ns (bidirectional): Enables effective suppression of fast EFT bursts and ESD events before system damage occurs |
| Junction Temp Range | -55°C to +175°C: Supports under-hood automotive placement and industrial motor drive environments |
| AEC-Q101 Qualified | Yes: Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per AEC standard |
Pinout & Package
Package: DO-201 axial leaded plastic package with cathode band marking (not applicable for bidirectional operation); UL 94V-0 rated molding compound; pure tin-plated leads compliant with J-STD-002 solderability; 0.090g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No polarity dependence - either lead may connect to protected line or ground; identical clamping in both directions |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or floating DC rails without orientation constraints |
| 1500W surge rating (10/1000μs) | Withstands severe automotive load dump and inductive switch-off transients without degradation |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery interruption), and Pulse 3a/3b (switching noise) |
| AEC-Q101 qualification | Meets automotive stress testing requirements for temperature cycling, high-temp reverse bias, and mechanical robustness |
| Low dynamic impedance | Minimizes clamping voltage overshoot during fast-rising transients - critical for protecting 3.3V/5V logic interfaces |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and chassis ground to clamp surges up to ±1500W. Use Value: Limits rail voltage to ≤12.5V during 200A transients, preventing latch-up or burnout in microcontrollers and CAN transceivers. |
Use Scenario: Safeguarding gate driver inputs and feedback sensing lines in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response TVS on isolated analog inputs and PWM signal paths exposed to MOSFET switching noise. Use Value: Sub-5ns response prevents false triggering or ADC corruption caused by nanosecond-scale EFT bursts. |
| LED Lighting Driver Protection | Automotive Body Control Module (BCM) |
Use Scenario: Shielding constant-current LED drivers from inductive kickback during dimming FET switching. IC Role / Device Role / Timing Role: Bidirectional TVS across output terminals to absorb reverse EMF from magnetic components. Use Value: Clamps flyback spikes to 12.5V while maintaining <1μA leakage at 6.63V - avoids standby current drain and thermal drift. |
Use Scenario: Securing LIN bus lines and sensor inputs (e.g., ambient temperature, door position) against ESD and cable discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS on bidirectional data lines to suppress ±8kV contact ESD per IEC 61000-4-2. Use Value: Meets AEC-Q101 and ISO 7637-2 Pulse 3b, ensuring uninterrupted communication during vehicle assembly and service operations. |
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 SMAJ8.0CA | Lower peak power (400W), SMA package (surface-mount), VC = 12.5V @ 32.4A | Not suitable for 1500W load dump; limited to board-level ESD and lower-energy transients | Select when space-constrained PCB layout requires SMT and surge energy is ≤400W |
| ON Semiconductor 1.5KE8.2C | Same DO-201 package and electrical specs, but lacks AEC-Q101 qualification and ISO 7637-2 validation | Acceptable for commercial/industrial use; not approved for automotive OEM production | Choose only for non-automotive applications where AEC-Q101 and ISO compliance are not required |
Compared with SMAJ8.0CA and 1.5KE8.2C, the 1.5KE8.2CAHR0G uniquely combines 1500W surge capability, AEC-Q101 qualification, and ISO 7637-2 compliance in a through-hole DO-201 package - making it the only option qualified for front-end automotive power rail protection without derating or parallel staging.
Availability
1.5KE8.2CAHR0G is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and LED lighting systems requiring stable component supply with guaranteed AEC-Q101 qualification and long-term lifecycle support.
Supply support for 1.5KE8.2CAHR0G 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, rectifiers, and thyristors with global automotive and industrial certifications.
The 1.5KE series was developed specifically for high-reliability transient suppression in harsh automotive environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust thermal performance up to 175°C junction temperature.
FAQ
What does the 'H' suffix in 1.5KE8.2CAHR0G indicate?
The 'H' in 1.5KE8.2CAHR0G denotes AEC-Q101 qualification - confirming that the 1.5KE8.2CAHR0G has passed rigorous automotive reliability testing including temperature cycling, high-temperature reverse bias, and mechanical shock. This makes the 1.5KE8.2CAHR0G suitable for under-hood and safety-critical vehicle subsystems where standard industrial TVS diodes would not be approved.
Is 1.5KE8.2CAHR0G unidirectional or bidirectional?
The 1.5KE8.2CAHR0G is a bidirectional TVS diode, as confirmed by the 'CA' suffix and its symmetric breakdown specification (7.38–9.02V in both polarities). Unlike unidirectional variants (e.g., 1.5KE8.2A), the 1.5KE8.2CAHR0G provides identical clamping performance regardless of voltage polarity - ideal for AC-coupled lines, differential buses, or floating DC rails where polarity cannot be guaranteed.
What is the maximum clamping voltage of 1.5KE8.2CAHR0G under surge conditions?
The 1.5KE8.2CAHR0G has a maximum clamping voltage (VC) of 12.5V at 200A peak impulse current (IPP), measured per 10/1000μs waveform. This value is guaranteed across temperature and lifetime, and ensures protected circuitry remains below critical overvoltage thresholds - a key design parameter for safeguarding 5V and 3.3V logic interfaces downstream of the 1.5KE8.2CAHR0G.
Does 1.5KE8.2CAHR0G meet ISO 7637-2 requirements?
Yes, the 1.5KE8.2CAHR0G is explicitly validated to meet ISO 7637-2 for Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery interruption), and Pulse 3a/3b (switching noise). This compliance is documented in Taiwan Semiconductor's official 1.5KE series datasheet (Version O2104) and forms the basis for its use in automotive power distribution modules and body control units requiring certified EMC robustness.
What packaging options are available for 1.5KE8.2CAHR0G?
The 1.5KE8.2CAHR0G is supplied in DO-201 axial-leaded package, available in 1,250-piece tape-and-reel format (standard) and 500-piece ammo box (for prototyping or low-volume builds). The 'R0G' suffix confirms green (halogen-free) compound and RoHS compliance. No SMD variant exists for this specific AEC-Q101 qualified part - surface-mount alternatives require different part numbers and qualification status.
1.5KE8.2CAHR0G 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE8.2CAHR0G FAQ
1.How can I place an order for 1.5KE8.2CAHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2CAHR0G 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 1.5KE8.2CAHR0G reliable?
The price and inventory of 1.5KE8.2CAHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2CAHR0G is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2CAHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2CAHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2CAHR0G?
1.5KE8.2CAHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2CAHR0G 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 1.5KE8.2CAHR0G?
For technical support, including 1.5KE8.2CAHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2CAHR0G requirements.
6.How does Aetrix verify that 1.5KE8.2CAHR0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2CAHR0G 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 1.5KE8.2CAHR0G meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2CAHR0G?
All 1.5KE8.2CAHR0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2CAHR0G, 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 1.5KE8.2CAHR0G part is unused and in its original packaging.
Return procedure for 1.5KE8.2CAHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2CAHR0G Tags
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