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Vishay General Semiconductor - Diodes Division 1.5KE82C-E3/73
- Part No.:
- 1.5KE82C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82C-E3/73.pdf
- Description:
- TVS DIODE 66.4VWM 118VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,152
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Product details
Overview
1.5KE82C-E3/73 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 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. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE82C-E3/73 datasheet, 1.5KE82C-E3/73 pinout, 1.5KE82C-E3/73 application, or 1.5KE82C-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package details, bidirectional clamping behavior, thermal derating curves, and direct alternative part comparisons - all validated against Vishay Document #88301 (Rev. 09-Aug-2022).
Technical Context
This device implements a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints.
It complies with JEDEC standards for transient suppression, supports 10/1000 µs waveform testing per Fig. 1, and exhibits a temperature coefficient of VBR of +0.105 %/°C - critical for stable clamping across automotive and industrial ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at 1 mA - defines precise clamping onset threshold under standardized test current |
| VWM | 70.1 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 113 V at 13.3 A - actual clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity for short-duration lightning or ESD-like events |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-power industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs heatsinking requirements for repetitive surges |
| Capacitance | Not specified in datasheet - confirms suitability for DC/low-frequency power-line protection, not high-speed data lines |
Pinout & Package
Package: JEDEC Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS compliant (E3 suffix). Lead length 0.375" (9.5 mm), diameter 0.042" (1.07 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Reversible terminals | No polarity marking; symmetric conduction allows placement in AC or floating circuits without orientation concern |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power | Withstands IEEE C62.41-compliant surge waveforms without degradation in power supply rails |
| Clamping response time <1 ns | Protects sensitive gate oxides (e.g., MOSFETs) before destructive voltage overshoot occurs |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving protection margin for downstream ICs |
| AEC-Q101 qualified option available | HE3 variant supports automotive-grade qualification (though 1.5KE82C-E3/73 is commercial grade) |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of H-bridge gate drivers and current-sense amplifiers against back-EMF spikes from brushed DC motors. IC Role / Device Role / Timing Role: Bidirectional TVS placed across motor supply rails to clamp both positive and negative transients. Use Value: Limits rail voltage to ≤113 V during 13.3 A surges, preventing latch-up or oxide rupture in 40 V-rated gate drivers. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff voltage (70.1 V) ensures no conduction during normal 12 V/24 V operation; clamps >82 V events within nanoseconds. Use Value: Maintains signal integrity on 20 kbps LIN lines while surviving ISO 7637-2 Pulse 5a (load dump) up to 120 V. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
|
Use Scenario: Overvoltage protection on -48 V DC telecom power distribution boards exposed to lightning-induced surges on remote lines. IC Role / Device Role / Timing Role: Bidirectional clamping referenced to system ground, absorbing common-mode transients on feed lines. Use Value: 1500 W rating handles R.E.A. P.E. 60-compliant lightning surges without failure, preserving board-level redundancy. |
Use Scenario: Input protection for microcontroller reset lines and relay coil flyback paths in washing machine control units. IC Role / Device Role / Timing Role: Unidirectional variant typically used for DC coils; this bidirectional version suits AC solenoid or dual-rail sensing inputs. Use Value: Withstands repeated 1000-cycle inductive switch-off events at 13.3 A without parameter drift or leakage increase. |
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 (3.5 × 3.5 mm), VC = 125 V @ 4.8 A | Better suited for space-constrained PCBs; insufficient for 1500 W surge requirements | Select when board area is critical and surge energy is ≤600 W (e.g., secondary-side protection) |
| 1.5KE82CA | Same electrical specs and 1.5KE package, but without E3 RoHS/commercial-grade suffix (legacy non-RoHS variant) | Identical clamping performance; lacks JESD 201 Class 1A whisker resistance and RoHS compliance | Choose only for legacy repair or non-RoHS environments; 1.5KE82C-E3/73 is preferred for new designs |
Compared with SMBJ85CA and 1.5KE82CA, the 1.5KE82C-E3/73 uniquely delivers full 1500 W surge capability in a RoHS-compliant, whisker-tested package - making it the only option among the three qualified for primary-side industrial power rail protection where energy handling and regulatory compliance are both mandatory.
Availability
1.5KE82C-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, telecom power feeds, and consumer appliance control boards requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE82C-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 and ruggedized performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting applications where failure modes include lightning, inductive kickback, and electrostatic discharge in power conversion and automotive subsystems.
FAQ
What is the clamping voltage of the 1.5KE82C-E3/73 under maximum surge conditions?
The 1.5KE82C-E3/73 clamps to 113 V when subjected to its peak pulse current of 13.3 A (10/1000 µs waveform), as specified in Vishay Document #88301. This value represents the maximum voltage seen downstream during a full 1500 W transient event, ensuring protected components remain below their absolute maximum ratings. The 1.5KE82C-E3/73 maintains this clamping performance across its operating temperature range.
Is the 1.5KE82C-E3/73 unidirectional or bidirectional?
The 1.5KE82C-E3/73 is a bidirectional Transient Voltage Suppressor, indicated by the "C" suffix in its part number. It provides symmetrical clamping for both positive and negative voltage transients without polarity sensitivity - ideal for AC-coupled lines, floating sensors, or differential buses. Unlike unidirectional variants (e.g., 1.5KE82A), it has no cathode marking and conducts identically in either direction.
Does the 1.5KE82C-E3/73 meet automotive qualification standards?
The 1.5KE82C-E3/73 is a commercial-grade part and is not AEC-Q101 qualified. However, Vishay offers the 1.5KE82CAHE3_B variant (with HE3 suffix) that meets AEC-Q101 for automotive use. The 1.5KE82C-E3/73 retains the same electrical characteristics and 175 °C junction rating, making it suitable for industrial and telecom applications where extended temperature operation is required but formal automotive qualification is not mandated.
What is the standoff voltage (VWM) of the 1.5KE82C-E3/73, and why does it matter?
The standoff voltage VWM of the 1.5KE82C-E3/73 is 70.1 V - the maximum DC or RMS voltage the device can withstand continuously without significant leakage (>1 µA). This parameter ensures the 1.5KE82C-E3/73 remains non-conductive during normal operation in 48 V or 60 V systems, avoiding power loss or false triggering while still responding instantly to transients exceeding 77.9 V (VBR min).
Can the 1.5KE82C-E3/73 be used in parallel to increase surge handling capacity?
Yes, the 1.5KE82C-E3/73 may be used in parallel to increase total peak pulse power handling, as confirmed in Vishay's Application Notes (Document #88301, p. 5). However, matching VBR tolerances (±5 %) and using symmetrical PCB layout with equal trace inductance is essential to ensure current sharing. For most designs, a single 1.5KE82C-E3/73 suffices for 1500 W events; parallel use is reserved for >3 kW requirements or redundancy-critical systems.
1.5KE82C-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):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 12.7A
- 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
1.5KE82C-E3/73 FAQ
1.How can I place an order for 1.5KE82C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82C-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 1.5KE82C-E3/73 reliable?
The price and inventory of 1.5KE82C-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 1.5KE82C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE82C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82C-E3/73?
1.5KE82C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82C-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 1.5KE82C-E3/73?
For technical support, including 1.5KE82C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE82C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82C-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 1.5KE82C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE82C-E3/73?
All 1.5KE82C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82C-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 1.5KE82C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE82C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82C-E3/73 Tags
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