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Vishay General Semiconductor - Diodes Division 1.5KE82CA-E3/51
- Part No.:
- 1.5KE82CA-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82CA-E3/51.pdf
- Description:
- TVS DIODE 70.1VWM 113VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,854
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Product details
Overview
1.5KE82CA-E3/51 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 82 V breakdown voltage (VBR = 77.9–86.1 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 113 V at 13.3 A, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE82CA-E3/51 datasheet, 1.5KE82CA-E3/51 pinout, 1.5KE82CA-E3/51 application, or 1.5KE82CA-E3/51 equivalent, this device serves as a robust, AEC-Q101-qualified (HE3 variant) transient suppressor with verified bidirectional clamping, low incremental surge resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom front-end protection design.
Technical Context
This bidirectional TVS diode uses a glass passivated silicon junction optimized for sub-nanosecond response (<1 ns) and stable clamping under repetitive 10/1000 µs surges at 0.01% duty cycle. Its symmetrical I-V characteristics ensure identical forward and reverse conduction thresholds, enabling direct placement across AC-coupled or floating differential lines without polarity concerns.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, supporting reliable operation up to TJ = 175 °C. The device sustains 200 A non-repetitive forward surge (8.3 ms half-sine) and exhibits a VF ≤ 3.5 V at 100 A - consistent with all 1.5KE220A and lower variants per datasheet Note (3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 77.9 V min / 86.1 V max at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| Stand-off Voltage VWM | 70.1 V - maximum continuous working voltage before leakage exceeds 1 µA |
| Clamping Voltage VC | 113 V at 13.3 A (10/1000 µs) - limits downstream voltage stress during surge events |
| Peak Pulse Power PPPM | 1500 W - enables suppression of high-energy transients common in automotive load-dump or telecom lightning tests |
| Operating Temperature Range | –55 °C to +175 °C - supports under-hood automotive, industrial motor control, and outdoor telecom deployments |
| Package Type | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 rated epoxy body |
| Leakage Current ID | ≤ 1 µA at VWM - ensures minimal standby power loss in always-on circuits |
Pinout & Package
1.5KE82CA-E3/51 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package with no polarity marking - consistent with bidirectional construction. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path terminal | Either lead serves as input/output for transient current - no cathode band; terminals interchangeable in layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity requirements for AC mains and data line protection |
| Sub-nanosecond response time | Clamps transients within <1 ns - faster than MOVs or GDTs - preserving signal integrity in high-speed interfaces |
| UL 94 V-0 flammability rating | Molded epoxy body self-extinguishes under flame exposure, satisfying safety-critical end-equipment certifications |
| AEC-Q101 qualification (HE3 variant) | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle power distribution networks from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across supply rail upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤113 V during 13.3 A surges, preventing latch-up or gate oxide damage in downstream SiC MOSFET drivers and CAN transceivers. |
Use Scenario: Safeguarding analog front-ends of pressure, temperature, and current sensors in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector entry point before signal conditioning op-amps and ADC inputs. Use Value: Clamps EFT bursts (IEC 61000-4-4) and surge coupling (IEC 61000-4-5) without distorting mV-level sensor signals due to fast <1 ns response. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and PoE injectors from induced lightning surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary-level bidirectional TVS mounted directly at RJ-45 jack, coordinated with secondary GDT or polymer PTC. Use Value: Absorbs 1500 W surge energy while maintaining ≤113 V clamping - compatible with IEEE 802.3af/at voltage tolerances and isolation barrier ratings. |
Use Scenario: Secondary-side overvoltage suppression in AC-DC adapters for smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Final-stage TVS across DC output (e.g., 5 V/12 V) to prevent fault propagation into USB ports or wireless SoCs. Use Value: Withstands repeated 10/1000 µs surges up to 13.3 A without degradation - validated for >1000 surge events per JEDEC standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), VC = 137 V at 4.4 A | Suitable for space-constrained PCBs but requires derating for >1 kV surge compliance | Select when board area is limited and peak surge current remains ≤4.4 A |
| 1.5SMC82CA | Same VBR/VC, SMC package (DO-214AB), PPPM = 1500 W, RθJA = 50 °C/W (better thermal dissipation) | Better suited for high-density layouts with thermal vias; not axial-leaded | Choose for automated SMT assembly and improved thermal management in high-power designs |
Compared with 1.5KE82CA-E3/51, SMBJ85CA trades surge capacity for footprint reduction, while 1.5SMC82CA retains full 1500 W capability in a surface-mount format - offering higher power density and superior thermal performance but requiring rework of through-hole layout and lead-forming tooling.
Availability
1.5KE82CA-E3/51 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply, RoHS-compliant sourcing, and long-lifecycle support.
Supply support for 1.5KE82CA-E3/51 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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and infrastructure applications where failure modes must be mitigated without compromising response speed or thermal stability.
FAQ
What is the exact breakdown voltage range for 1.5KE82CA-E3/51?
The 1.5KE82CA-E3/51 has a guaranteed breakdown voltage (VBR) range of 77.9 V to 86.1 V at a test current of 1 mA, as specified in the Vishay datasheet Document Number 88301. This tight tolerance ensures predictable clamping behavior across production lots and temperature extremes, making 1.5KE82CA-E3/51 suitable for precision overvoltage protection in regulated power systems.
Is 1.5KE82CA-E3/51 RoHS compliant and halogen-free?
Yes, the "E3" suffix in 1.5KE82CA-E3/51 indicates full RoHS compliance per EU Directive 2011/65/EU and halogen-free status per IEC 61249-2-21. The device uses matte tin-plated leads and UL 94 V-0 epoxy molding compound, with material declarations available in Vishay's compliance portal under document number 99912.
Does 1.5KE82CA-E3/51 have AEC-Q101 qualification?
The base 1.5KE82CA-E3/51 is commercial-grade. However, the AEC-Q101 qualified version is designated as 1.5KE82CAHE3_B (with revision code "B"), which undergoes additional stress testing for automotive use. Both share identical electrical specs, but only the HE3 variant is approved for under-hood and ADAS applications per AEC-Q101 Rev D.
What is the clamping voltage of 1.5KE82CA-E3/51 at its rated peak pulse current?
At its rated peak pulse current of 13.3 A (10/1000 µs waveform), the 1.5KE82CA-E3/51 clamps to a maximum of 113 V. This value is measured per JEDEC standard and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring compatibility with 100 V-rated MOSFETs and 120 V-rated capacitors.
Can 1.5KE82CA-E3/51 be used in bidirectional AC signal paths?
Yes, 1.5KE82CA-E3/51 is explicitly designed for bidirectional applications: its symmetrical V-I characteristics provide identical clamping in both polarities, with no cathode marking required. It is routinely deployed across RS-485 buses, isolated CAN transceivers, and AC-coupled audio lines where polarity reversal or floating references exist - confirmed by Vishay's "DEVICES FOR BIDIRECTION APPLICATIONS" designation.
1.5KE82CA-E3/51 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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 13.3A
- 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:
- 1.5KE
1.5KE82CA-E3/51 FAQ
1.How can I place an order for 1.5KE82CA-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82CA-E3/51 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 1.5KE82CA-E3/51 reliable?
The price and inventory of 1.5KE82CA-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82CA-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE82CA-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82CA-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82CA-E3/51?
1.5KE82CA-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82CA-E3/51 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 1.5KE82CA-E3/51?
For technical support, including 1.5KE82CA-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82CA-E3/51 requirements.
6.How does Aetrix verify that 1.5KE82CA-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82CA-E3/51 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 1.5KE82CA-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE82CA-E3/51?
All 1.5KE82CA-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82CA-E3/51, 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 1.5KE82CA-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE82CA-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82CA-E3/51 Tags
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