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Vishay General Semiconductor - Diodes Division 1.5KE8.2CAHE3/51
- Part No.:
- 1.5KE8.2CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2CAHE3/51.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,727
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Product details
Overview
1.5KE8.2CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for overvoltage protection in sensitive signal and power lines. It features a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA test current, 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 124 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the 1.5KE8.2CAHE3/51 datasheet, 1.5KE8.2CAHE3/51 pinout, 1.5KE8.2CAHE3/51 application, or 1.5KE8.2CAHE3/51 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified bi-directional TVS for high-energy transient suppression where polarity-agnostic clamping and fast sub-nanosecond response are required.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction enables low incremental surge resistance and excellent clamping consistency under repetitive 10/1000 µs transients at 0.01% duty cycle.
The device is rated for 175 °C maximum junction temperature and exhibits a +0.065 %/°C temperature coefficient of VBR. It meets JESD 201 Class 2 whisker resistance (HE3 suffix) and UL 94 V-0 flammability requirements via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.79 V to 8.61 V at 10 mA - defines minimum voltage at which clamping initiates reliably |
| Stand-off Voltage VWM | 7.02 V max - ensures no conduction during normal operation up to rated system voltage |
| Clamping Voltage VC | 12.1 V at 124 A IPPM - limits downstream voltage stress during 10/1000 µs surge events |
| Peak Pulse Power PPPM | 1500 W - sustains single 1 ms transients without failure per JEDEC standard |
| Operating Temperature | -55 °C to +175 °C - supports under-hood automotive and industrial ambient conditions |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems requiring reliability under thermal cycling and humidity |
| RoHS Compliance | Yes (HE3 suffix) - lead-free matte tin plating, compliant with EU Directive 2011/65/EU |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded DO-201AD molded epoxy package with 0.375" (9.5 mm) lead length; UL 94 V-0 rated; leads are matte tin plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bi-directional) | Reversible current path | No polarity marking; symmetrical conduction allows installation without orientation check |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal stress and humidity |
| 1500 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 50 V systems |
| Sub-nanosecond response time | Clamps transients within ≤1 ns - faster than MOVs or GDTs, preserving signal integrity |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, reducing stress on protected ICs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pairs or supply rails to limit transient excursions. Use Value: Prevents latch-up or gate oxide damage in 5 V/3.3 V interface ICs during ISO 7637-2 pulse 5a/b events. |
Use Scenario: Shielding 24 V digital input modules in programmable logic controllers from inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage shunt element mounted at field-wiring entry point before optocoupler or Schmitt trigger input stage. Use Value: Limits voltage to ≤12.1 V during 1500 W transients, ensuring safe operation of downstream level-shifting circuitry. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY front-end and PoE injectors against induced surges on outdoor copper cabling per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary protection device following gas discharge tube (GDT), providing low-clamp precision after coarse suppression. Use Value: Delivers precise clamping at 12.1 V to prevent damage to 100BASE-TX magnetics and PHY transceivers. |
Use Scenario: Input-stage surge suppression in AC-DC adapters for smart home devices exposed to mains-borne transients. IC Role / Device Role / Timing Role: First-line bidirectional clamp across bridge rectifier output or bulk capacitor terminals. Use Value: Absorbs 1500 W energy without degradation, maintaining compliance with UL 62368-1 transient immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), 8.89–9.82 V VBR | Better suited for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 Level 4 | Select when board area is critical and surge energy is ≤600 W |
| 1.5KE8.2C | Same electrical specs but non-AEC-Q101, commercial-grade only (no HE3 whisker rating) | Limited to non-automotive industrial or consumer use; lacks automotive qualification documentation | Select for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMBJ8.0CA and 1.5KE8.2C, the 1.5KE8.2CAHE3/51 uniquely combines 1500 W surge capability, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance - making it the only option among the three qualified for under-hood automotive deployment with full IEC 61000-4-5 Level 4 immunity.
Availability
1.5KE8.2CAHE3/51 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE8.2CAHE3/51 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against lightning, ESD, and inductive switching surges is mandatory.
FAQ
What is the breakdown voltage range of the 1.5KE8.2CAHE3/51?
The 1.5KE8.2CAHE3/51 has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per JEDEC standard. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, directly supporting design margining for 5 V and 8 V rail protection in the 1.5KE8.2CAHE3/51 application space.
Is the 1.5KE8.2CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE8.2CAHE3/51 is AEC-Q101 qualified and manufactured with JESD 201 Class 2 whisker-resistant matte tin plating. Its -55 °C to +175 °C operating range, glass-passivated junction, and 1500 W surge rating make it appropriate for under-hood and chassis-mounted automotive electronics - including those specified in the 1.5KE8.2CAHE3/51 datasheet for ECU and sensor interface protection.
How does the bi-directional configuration of the 1.5KE8.2CAHE3/51 affect its mounting?
The 1.5KE8.2CAHE3/51 has no polarity marking and conducts identically in both directions, eliminating orientation concerns during placement. Unlike uni-directional TVS diodes, the 1.5KE8.2CAHE3/51 can be installed without verifying anode/cathode alignment - simplifying assembly and reducing risk of misplacement in high-volume manufacturing of boards using the 1.5KE8.2CAHE3/51.
What is the clamping voltage of the 1.5KE8.2CAHE3/51 at its rated peak pulse current?
The 1.5KE8.2CAHE3/51 clamps to a maximum of 12.1 V at 124 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is critical for determining whether downstream components - such as 5 V microcontrollers or CAN transceivers - remain within absolute maximum ratings during surge events, as confirmed in the 1.5KE8.2CAHE3/51 electrical characteristics table.
Does the 1.5KE8.2CAHE3/51 meet RoHS and lead-free requirements?
Yes, the HE3 suffix denotes full RoHS compliance per EU Directive 2011/65/EU, with matte tin-plated leads and halogen-free molding compound. The 1.5KE8.2CAHE3/51 also satisfies JESD 201 Class 2 whisker testing, ensuring long-term solder joint integrity in thermally cycled environments - a requirement explicitly verified for the 1.5KE8.2CAHE3/51 in Vishay's qualification report.
1.5KE8.2CAHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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):
- 124A
- 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:
- 1.5KE
1.5KE8.2CAHE3/51 FAQ
1.How can I place an order for 1.5KE8.2CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2CAHE3/51 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 1.5KE8.2CAHE3/51 reliable?
The price and inventory of 1.5KE8.2CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2CAHE3/51?
1.5KE8.2CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2CAHE3/51 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 1.5KE8.2CAHE3/51?
For technical support, including 1.5KE8.2CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE8.2CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2CAHE3/51 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 1.5KE8.2CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2CAHE3/51?
All 1.5KE8.2CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2CAHE3/51, 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 1.5KE8.2CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE8.2CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2CAHE3/51 Tags
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