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Vishay General Semiconductor - Diodes Division 1.5KE8.2C-E3/73
- Part No.:
- 1.5KE8.2C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2C-E3/73.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,266
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Product details
Overview
1.5KE8.2C-E3/73 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 1500 W peak pulse power rating (10/1000 μs), 8.2 V nominal breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V stand-off voltage (VWM), and clamps to ≤12.1 V at 124 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge hardening.
For engineers reviewing the 1.5KE8.2C-E3/73 datasheet, 1.5KE8.2C-E3/73 pinout, 1.5KE8.2C-E3/73 application, or 1.5KE8.2C-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, bidirectional clamping behavior, thermal derating curves, and AEC-Q101-qualified alternatives for automotive-grade design-in.
Technical Context
The 1.5KE8.2C-E3/73 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response (<1 ns) to ESD and lightning-induced transients. Its bidirectional architecture supports symmetrical clamping in AC-coupled or floating signal paths without polarity constraints.
It complies with UL 497B recognition (QVGQ2), meets JESD201 Class 1A whisker resistance, and is rated for -55 °C to +175 °C junction temperature. The device uses a molded epoxy case (UL 94 V-0) with matte tin-plated leads solderable 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 guaranteed avalanche onset range for reliable transient detection |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 200 μA |
| VC @ IPPM | ≤12.1 V at 124 A - clamping voltage under 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling for 1 ms surges, supporting IEC 61000-4-5 Level 4 compliance |
| TJ max | +175 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for repetitive surges |
| Package | DO-201AD (JEDEC 1.5KE) - axial-leaded through-hole package with 0.375" lead length, compatible with standard wave-solder processes |
Pinout & Package
1.5KE8.2C-E3/73 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package with no polarity marking - consistent with bidirectional TVS construction. Leads are matte tin-plated and compliant with J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No cathode band; terminals interchangeable - enables placement in AC or floating circuits without orientation check |
| Lead 1 / Lead 2 | Current path during transient | Both leads conduct identically in either direction; thermal path optimized via 0.375" (9.5 mm) lead length per JEDEC spec |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, low-drift VBR over temperature and lifetime, critical for repeatable clamping in automotive ECUs |
| 1500 W 10/1000 μs rating | Supports robust protection against IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit |
| Sub-nanosecond response | Clamps transients within 1 ns - faster than MOVs or polymer-based protectors, preserving signal integrity in high-speed interfaces |
| UL 497B recognized (QVGQ2) | Validated for telecom and industrial communication line protection per safety standard, reducing certification effort |
| AEC-Q101 qualified option | 1.5KE8.2CAHE3_B variant available - meets automotive reliability testing for engine control, body electronics, and ADAS sensors |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to shunt surge energy before it reaches precision amplifier or MCU input. Use Value: Limits transient voltage to ≤12.1 V, preventing latch-up or gate oxide damage in 5 V/3.3 V automotive ICs while maintaining signal fidelity. | Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from field wiring surges induced by motor switching or lightning. IC Role / Device Role / Timing Role: Primary overvoltage clamp on loop supply line, operating in parallel with series current-limiting resistor and input filter capacitor. Use Value: Absorbs 1500 W surges without degradation, ensuring uninterrupted analog measurement during factory floor EMI events. |
| Telecom Line Protection | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHYs and DSL line drivers connected to outside plant wiring exposed to induced lightning per R.E.A. P.E. 60. IC Role / Device Role / Timing Role: First-stage protector on unshielded twisted-pair lines, coordinated with secondary GDT or MOV for staged energy diversion. Use Value: Responds in <1 ns to fast-rising transients, clamping before secondary devices activate - essential for protecting 10/100/1000BASE-T transceivers. | Use Scenario: Secondary-side overvoltage suppression on DC output rails of wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Final-clamp TVS placed after primary regulation and filtering, guarding against internal regulator fault or capacitor failure. Use Value: Prevents >12.1 V from reaching USB-C or 5 V logic rails, avoiding catastrophic failure in battery-charging ICs or microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Surface-mount SMB package (vs. axial DO-201AD); lower 600 W PPPM; VBR = 8.89–9.83 V | Designed for PCB space-constrained designs; not suitable for high-reliability through-hole mounting or manual repair | Select when board area is limited and surge requirement is ≤600 W; verify layout thermal relief for 125 °C ambient |
| 1.5KE8.2CAHE3_B | Same DO-201AD package and electrical specs; AEC-Q101 qualified; HE3 suffix denotes whisker-tested leads | Required for automotive production where component qualification per AEC-Q101 is mandatory | Choose for engine bay, chassis, or ADAS modules needing certified reliability; identical pinout and footprint |
Compared with 1.5KE8.2C-E3/73, SMBJ8.0CA trades mechanical robustness and surge capacity for compactness, while 1.5KE8.2CAHE3_B adds automotive qualification without altering electrical behavior - making it a drop-in reliability upgrade for OEM programs.
Availability
1.5KE8.2C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, telecom line safeguarding, and consumer power adapter output clamping requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE8.2C-E3/73 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal integrity or thermal stability.
FAQ
What is the breakdown voltage tolerance for 1.5KE8.2C-E3/73?
The 1.5KE8.2C-E3/73 has a specified breakdown voltage range of 7.79 V to 8.61 V at 10 mA test current, representing ±5.5% tolerance about the nominal 8.2 V rating. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes from -55 °C to +175 °C, critical for consistent protection in automotive and industrial systems.
Is 1.5KE8.2C-E3/73 RoHS compliant and lead-free?
Yes, the 1.5KE8.2C-E3/73 carries the "E3" suffix, indicating full RoHS compliance per Directive 2011/65/EU and exemption 6(c)-I. Its matte tin-plated leads meet J-STD-002 solderability requirements and pass JESD201 Class 1A whisker testing. No lead content is present in the die, mold compound, or terminations - verified by Vishay's material declaration DOC-99912.
How does the bidirectional nature of 1.5KE8.2C-E3/73 affect circuit placement?
The 1.5KE8.2C-E3/73 has no polarity marking and functions identically in both directions, allowing placement across AC-coupled signals, transformer secondaries, or floating differential buses without orientation verification. This eliminates assembly errors and simplifies layout in applications like RS-485, CAN FD, or audio line drivers where signal symmetry is required - unlike unidirectional variants that require cathode alignment.
What is the maximum clamping voltage of 1.5KE8.2C-E3/73 under surge conditions?
The 1.5KE8.2C-E3/73 clamps to a maximum of 12.1 V when subjected to its rated 124 A peak pulse current (10/1000 μs waveform). This value is measured per JEDEC standard and represents worst-case voltage seen by downstream circuitry during a full-power transient - enabling designers to verify margin against 3.3 V or 5 V IC absolute maximum ratings with confidence.
Can 1.5KE8.2C-E3/73 be used in parallel for higher surge capability?
While 1.5KE8.2C-E3/73 can be paralleled to increase total surge current handling, Vishay advises using matched units with identical VBR and thermal mounting to ensure current sharing. Uneven distribution may cause one device to absorb disproportionate energy and fail prematurely. For >1500 W requirements, consider higher-rated variants like 1.5KE10C or staged protection with upstream GDTs instead of parallel TVS diodes.
1.5KE8.2C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 120A
- 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
1.5KE8.2C-E3/73 FAQ
1.How can I place an order for 1.5KE8.2C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2C-E3/73 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 1.5KE8.2C-E3/73 reliable?
The price and inventory of 1.5KE8.2C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2C-E3/73?
1.5KE8.2C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2C-E3/73 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 1.5KE8.2C-E3/73?
For technical support, including 1.5KE8.2C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE8.2C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2C-E3/73 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 1.5KE8.2C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2C-E3/73?
All 1.5KE8.2C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2C-E3/73, 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 1.5KE8.2C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE8.2C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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