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Vishay General Semiconductor - Diodes Division 1.5KE8.2CAHE3_B/C
- Part No.:
- 1.5KE8.2CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2CAHE3_B/C.pdf
- Description:
- 1.5KW,8.2V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,933
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Product details
Overview
1.5KE8.2CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 1500 W peak pulse power (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 lightning-induced surges and inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the 1.5KE8.2CAHE3_B/C datasheet, 1.5KE8.2CAHE3_B/C pinout, 1.5KE8.2CAHE3_B/C application, or 1.5KE8.2CAHE3_B/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), RoHS-compliant HE3 packaging, and real-world clamping behavior under standardized surge waveforms.
Technical Context
This device implements a glass-passivated silicon junction optimized for bidirectional transient suppression with symmetrical clamping in both polarities. Its low incremental surge resistance and sub-nanosecond response time (≤1 ns) enable effective protection of sensitive downstream components without signal distortion or latency.
The 1.5KE8.2CAHE3_B/C complies with JEDEC-standard 10/1000 µs surge testing and supports repetitive duty cycles up to 0.01 %. Its 1.5KE case (DO-201AD) provides mechanical robustness, UL 94 V-0 flammability rating, and matte tin-plated leads qualified per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise voltage threshold where clamping begins in both directions |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.1 V at 124 A - peak clamped voltage during 1500 W transient, limiting stress on protected circuitry |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform, critical for lightning surge immunity |
| TJ max | +175 °C - enables operation in high-temperature environments such as engine control units and industrial motor drives |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance ensures efficient heat dissipation into PCB copper or heatsink |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated axial leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | No cathode band; terminals are interchangeable - enables placement flexibility in AC-coupled or floating signal paths |
| Lead 1 / Lead 2 | Thermal and electrical interface | Leads serve dual role: current conduction during surge and primary heat transfer path to PCB; RθJL = 15.4 °C/W confirms high thermal efficiency |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive power inputs |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including body control modules and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes let-through energy during transients, reducing risk of latch-up or gate oxide damage in protected MOSFETs |
| UL 94 V-0 molding compound | Ensures flame retardancy in enclosed enclosures and meets safety standards for industrial equipment certification |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional clamping element placed across input rails before DC-DC converter. Use Value: Clamps 12 V rail to ≤12.1 V during 1500 W transients, preventing overvoltage shutdown or regulator failure. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role: Low-capacitance TVS shunting induced surges on 4–20 mA or 0–10 V output lines. Use Value: Sub-ns response preserves signal integrity while diverting >100 A surges away from precision op-amps and ADC front-ends. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced common-mode surges on twisted-pair cables. IC Role / Device Role: Bidirectional TVS mounted differential-mode across data pair and common-mode across pair-to-chassis. Use Value: Symmetrical clamping prevents DC bias shift and maintains signal eye diagram integrity during 10/1000 µs transients. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices. IC Role / Device Role: Final-stage clamp after rectifier and bulk capacitor, guarding SMPS controller ICs. Use Value: Limits post-regulator rail excursions to safe levels during capacitor failure or feedback loop loss, avoiding fire hazard. |
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), higher VC/VBR ratio (1.55) | Better suited for space-constrained PCBs but less robust for high-energy surges like load dump | Select when board area is critical and surge energy is limited to IEC 61000-4-5 Level 2 |
| 1.5KE8.2C | Same electrical specs but commercial-grade (non-AEC-Q101), E3 suffix only (no HE3), lower whisker test class (1A vs. 2) | Acceptable for consumer or industrial non-automotive use; not qualified for automotive under hood | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with 1.5KE8.2CAHE3_B/C, SMBJ8.0CA trades peak power and thermal margin for compactness, while 1.5KE8.2C retains identical clamping performance but lacks automotive qualification and enhanced whisker resistance - making the HE3 variant essential for mission-critical vehicle electronics.
Availability
1.5KE8.2CAHE3_B/C is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface design, and telecom line protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for 1.5KE8.2CAHE3_B/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 high-energy transient suppression in harsh environments, targeting automotive subsystems, industrial power supplies, and infrastructure equipment where surge immunity and long-term stability are mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE8.2CAHE3_B/C?
The 1.5KE8.2CAHE3_B/C has a specified breakdown voltage range of 7.79 V to 8.61 V at 10 mA test current, corresponding to a ±5 % tolerance around the nominal 8.2 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports reliable system-level surge margin calculations in designs using the 1.5KE8.2CAHE3_B/C.
Is 1.5KE8.2CAHE3_B/C suitable for automotive under-hood applications?
Yes, the 1.5KE8.2CAHE3_B/C is AEC-Q101 qualified (per note 2 in the Vishay datasheet), with operating junction temperature up to +175 °C and validation across temperature cycling, high-temperature reverse bias, and ESD tests. Its HE3 suffix confirms compliance with JESD 201 Class 2 whisker testing - making it appropriate for engine control units, transmission modules, and other under-hood automotive systems where the 1.5KE8.2CAHE3_B/C is deployed.
How does the clamping voltage of 1.5KE8.2CAHE3_B/C compare to its breakdown voltage?
The 1.5KE8.2CAHE3_B/C clamps to 12.1 V at its rated peak pulse current of 124 A, yielding a clamping ratio (VC/VBR) of approximately 1.5. This low ratio reflects efficient silicon junction design and minimal incremental surge resistance - ensuring that protected circuits experience minimal overvoltage overshoot during high-energy transients, a key performance differentiator of the 1.5KE8.2CAHE3_B/C in critical protection roles.
What is the thermal resistance from junction to lead for 1.5KE8.2CAHE3_B/C?
The 1.5KE8.2CAHE3_B/C has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length. This value enables direct thermal coupling to PCB copper pours or chassis mounts, supporting sustained power dissipation and improving reliability during repetitive surge events - a critical parameter confirmed in the Vishay 88301 datasheet for the 1.5KE8.2CAHE3_B/C.
Does 1.5KE8.2CAHE3_B/C have polarity markings on the package?
No, the 1.5KE8.2CAHE3_B/C is a bidirectional TVS diode and carries no polarity marking - its DO-201AD package has unmarked, symmetrical axial leads. This allows flexible orientation during placement and eliminates risk of incorrect installation in AC or floating circuits, distinguishing it from unidirectional variants like 1.5KE8.2AHE3_B/C which feature a cathode band. The absence of marking is explicitly noted in the Vishay documentation for the 1.5KE8.2CAHE3_B/C.
1.5KE8.2CAHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7V
- 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:
- Telecom
- 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_B/C FAQ
1.How can I place an order for 1.5KE8.2CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2CAHE3_B/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 1.5KE8.2CAHE3_B/C reliable?
The price and inventory of 1.5KE8.2CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2CAHE3_B/C?
1.5KE8.2CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2CAHE3_B/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 1.5KE8.2CAHE3_B/C?
For technical support, including 1.5KE8.2CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE8.2CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2CAHE3_B/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 1.5KE8.2CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2CAHE3_B/C?
All 1.5KE8.2CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2CAHE3_B/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 1.5KE8.2CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE8.2CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE8.2CAHE3_B/C Tags
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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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