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Vishay General Semiconductor - Diodes Division 1.5KE8.2AHE3_A/C
- Part No.:
- 1.5KE8.2AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2AHE3_A/C.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,244
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Product details
Overview
1.5KE8.2AHE3_A/C from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 8.2 V nominal breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 1500 W peak pulse power rating (10/1000 µs), clamping voltage of 12.1 V at 124 A, and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against ESD and inductive switching transients in industrial power supplies.
For engineers reviewing the 1.5KE8.2AHE3_A/C datasheet, 1.5KE8.2AHE3_A/C pinout, 1.5KE8.2AHE3_A/C application, or 1.5KE8.2AHE3_A/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), stand-off voltage (VWM = 7.02 V), and leakage current (ID ≤ 200 µA) - all confirmed from Vishay's official 88301 datasheet revision 09-Aug-2022.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power rating is defined per 10/1000 µs waveform with 0.01% duty cycle, and it maintains stable clamping performance up to TJ = 175 °C.
The device complies with JESD22-B106 (solder dip 275 °C/10 s) and JESD201 Class 2 whisker testing (HE3 suffix). Its molded epoxy case meets UL 94 V-0 flammability rating, and matte tin-plated leads ensure solderability per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines reliable conduction onset under transient stress |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.1 V at 124 A - clamped voltage during full 1500 W surge, limiting downstream stress |
| IPPM | 124 A - peak pulse current capability under standardized 10/1000 µs waveform |
| PPPM | 1500 W - transient energy handling capacity without failure, critical for lightning/inductive spike immunity |
| TJ max. | +175 °C - enables use in high-temperature environments such as automotive engine compartments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for sustained operation |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with cathode band marking. Dimensions: 5.3 mm diameter × 9.5 mm length (0.210" × 0.375"). RoHS-compliant, AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or low-voltage rail; completes clamping path during reverse-biased transients |
| Cathode (banded end) | High-side transient input terminal | Connected to protected line (e.g., 12 V rail); conducts avalanche current when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche breakdown and long-term reliability under repetitive surges |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients from inductive load switching or nearby lightning strikes |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| UL 94 V-0 compliant molding compound | Prevents flame propagation in safety-critical enclosures and high-density PCB assemblies |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage exposure to protected ICs-critical for 3.3 V or 5 V logic interfaces |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 12 V input rails of PLC I/O modules against relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients before they reach DC/DC converters and microcontrollers. Use Value: Limits voltage excursion to ≤12.1 V during 124 A surges, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers from battery dump and load-dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply line upstream of local regulators and CAN/LIN interface ICs. Use Value: Withstands 1500 W pulses per ISO 7637-2 Pulse 5a while maintaining <200 µA leakage at 7.02 V, preserving sleep-mode current budget. |
| Consumer Appliance Motor Drive | Telecom Power Entry Stage |
Use Scenario: Shielding BLDC motor controller FET gates from commutation spikes in smart HVAC systems. IC Role / Device Role / Timing Role: Fast-response TVS on gate drive supply rail to absorb nanosecond-scale ringing induced by high di/dt switching. Use Value: Sub-1 ns response ensures clamping initiates before gate oxide breakdown occurs, supporting 600 V+ FETs with tight VGS margins. |
Use Scenario: Front-end protection of PoE-powered Ethernet switches against AC mains coupling and lightning-induced surges on 48 V input. IC Role / Device Role / Timing Role: First-line defense on primary DC bus before DC/DC isolation stage and PHY ICs. Use Value: 175 °C max junction temperature allows operation in sealed, thermally constrained telecom enclosures without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), VBR = 8.89–9.82 V | Not rated for AEC-Q101; limited to commercial-grade consumer/industrial use | Select when board space is constrained and surge energy is ≤600 W; verify thermal margin due to higher RθJA. |
| 1.5KE8.2A-E3/54 | Same electrical specs and DO-201AD package; differs only in packaging (tape-and-reel vs. bulk/heatsink-optimized HE3_B/C variant) | No functional difference; identical clamping, leakage, and thermal behavior | Choose for standard SMT assembly lines requiring 13" tape; HE3_A/C offers enhanced whisker resistance for high-reliability programs. |
Compared with SMBJ8.0A, the 1.5KE8.2AHE3_A/C delivers 2.5× higher surge power and automotive qualification; compared with 1.5KE8.2A-E3/54, it adds JESD201 Class 2 whisker resistance and optimized lead finish for mission-critical thermal cycling environments.
Availability
1.5KE8.2AHE3_A/C is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, appliance motor drives, and telecom power entry stages requiring stable component supply and AEC-Q101 traceability.
Supply support for 1.5KE8.2AHE3_A/C 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for robust, high-power transient suppression in harsh environments-emphasizing repeatable clamping, thermal stability, and qualification to automotive and safety standards.
FAQ
What is the exact breakdown voltage range for 1.5KE8.2AHE3_A/C?
The 1.5KE8.2AHE3_A/C has a guaranteed breakdown voltage range of 7.79 V to 8.61 V at a test current of 10 mA, as specified in Vishay's official datasheet (Document Number: 88301, Rev. 09-Aug-2022). This VBR window ensures consistent avalanche initiation across production lots and temperature extremes, enabling reliable overvoltage protection design for 8–9 V nominal rails. The 1.5KE8.2AHE3_A/C maintains this specification under full AEC-Q101 qualification testing.
Is 1.5KE8.2AHE3_A/C AEC-Q101 qualified?
Yes, the 1.5KE8.2AHE3_A/C is AEC-Q101 qualified, as confirmed in the "RATINGS AND CHARACTERISTICS CURVES" section of Vishay's 88301 datasheet (Note 2 on page 3). The HE3 suffix denotes compliance with AEC-Q101 stress tests-including temperature cycling, high-temperature operating life, and mechanical shock-making the 1.5KE8.2AHE3_A/C suitable for automotive body electronics, infotainment power rails, and other vehicle subsystems requiring automotive-grade reliability.
What is the clamping voltage of 1.5KE8.2AHE3_A/C at its rated peak pulse current?
The 1.5KE8.2AHE3_A/C clamps to a maximum of 12.1 V at its rated peak pulse current of 124 A (IPPM), measured using the standardized 10/1000 µs waveform. This value is published in the "ELECTRICAL CHARACTERISTICS" table (page 2) of Vishay's 88301 datasheet. The low clamping voltage-combined with its 7.02 V stand-off voltage-ensures effective protection of 5 V and 3.3 V logic devices without overstressing their absolute maximum ratings. The 1.5KE8.2AHE3_A/C achieves this with minimal voltage overshoot due to its sub-nanosecond response.
Can 1.5KE8.2AHE3_A/C be used in bidirectional configurations?
No, the 1.5KE8.2AHE3_A/C is strictly a unidirectional TVS diode, indicated by the "A" suffix (e.g., 1.5KE8.2A). Bidirectional variants use the "CA" suffix (e.g., 1.5KE8.2CA) and are only available for breakdown voltages up to 220 V per the datasheet's "Notes" section. The 1.5KE8.2AHE3_A/C features a cathode band marking and must be oriented with cathode toward the protected line; reverse connection would block normal operation and prevent clamping during positive transients.
What is the maximum leakage current for 1.5KE8.2AHE3_A/C at its working voltage?
The maximum reverse leakage current (ID) for the 1.5KE8.2AHE3_A/C is 200 µA at its maximum working voltage (VWM) of 7.02 V and ambient temperature of 25 °C, as specified in the "ELECTRICAL CHARACTERISTICS" table (page 2) of Vishay's 88301 datasheet. This low leakage ensures minimal impact on standby power consumption in battery-operated or energy-sensitive systems. The 1.5KE8.2AHE3_A/C maintains this spec across its full operating temperature range, with leakage increasing predictably per datasheet curves.
1.5KE8.2AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 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
1.5KE8.2AHE3_A/C FAQ
1.How can I place an order for 1.5KE8.2AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2AHE3_A/C 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 1.5KE8.2AHE3_A/C reliable?
The price and inventory of 1.5KE8.2AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2AHE3_A/C?
1.5KE8.2AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2AHE3_A/C 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 1.5KE8.2AHE3_A/C?
For technical support, including 1.5KE8.2AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2AHE3_A/C requirements.
6.How does Aetrix verify that 1.5KE8.2AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2AHE3_A/C 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 1.5KE8.2AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2AHE3_A/C?
All 1.5KE8.2AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2AHE3_A/C, 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 1.5KE8.2AHE3_A/C part is unused and in its original packaging.
Return procedure for 1.5KE8.2AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2AHE3_A/C Tags
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