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Vishay General Semiconductor - Diodes Division 1.5KE82HE3/54
- Part No.:
- 1.5KE82HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82HE3/54.pdf
- Description:
- TVS DIODE 66.4VWM 118VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,952
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Product details
Overview
1.5KE82HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in power rails and signal lines. It features a 77.9 V to 86.1 V breakdown voltage (VBR), 70.1 V maximum standoff voltage (VWM), 113 V clamping voltage at 13.3 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across -55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial motor drive DC bus protection.
For engineers reviewing the 1.5KE82HE3/54 datasheet, 1.5KE82HE3/54 pinout, 1.5KE82HE3/54 application, or 1.5KE82HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and real-world design context for surge immunity validation in high-reliability systems.
Technical Context
This unidirectional TVS diode uses a glass passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its clamping behavior is characterized by a 113 V maximum VC at IPPM = 13.3 A under 10/1000 µs waveform, with VF = 3.5 V at 100 A forward surge - confirming suitability for DC power line protection where low forward voltage drop during fault conduction is critical.
The device meets JESD 201 Class 2 whisker test requirements (HE3 suffix), supports solder dip up to 275 °C for 10 s, and is rated for repetitive 0.01% duty cycle operation. Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling direct lead-to-heatsink thermal path design without PCB copper pour dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - ensures reliable triggering above normal 70.1 V operating rail while avoiding false trips during transients |
| VWM | 70.1 V - maximum continuous reverse working voltage compatible with 60–72 V nominal DC systems |
| VC @ IPPM | 113 V - clamping voltage limits downstream IC stress to safe levels during 13.3 A surge events |
| PPPM | 1500 W - handles standardized 10/1000 µs lightning-induced surges per IEC 61000-4-5 Level 4 |
| IFSM | 200 A - withstands 8.3 ms half-sine surge without bond wire failure, critical for motor drive back-EMF suppression |
| TJ max. | +175 °C - enables placement near hot components (e.g., MOSFET heatsinks) without derating |
| RθJL | 15.4 °C/W - allows direct thermal coupling to chassis or metal-core PCB for sustained surge handling |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (Case Style 1.5KE), RoHS-compliant matte tin-plated leads, 0.375" (9.5 mm) lead length, UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path during surge clamp event |
| Cathode | Reverse-biased protection terminal | Connected to protected line (e.g., 72 V battery rail); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements |
| 1500 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 surge immunity standards |
| 113 V clamping at 13.3 A | Limits voltage overshoot to <1.6× VWM, protecting 100 V-rated MOSFETs and gate drivers |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-humidity, high-temperature automotive environments |
Applications
| Automotive Battery Rail Protection | Industrial DC Motor Drive Bus |
|---|---|
Use Scenario: Protecting 72 V battery-fed ECUs against load dump and alternator switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery+ and chassis ground to clamp surges within nanoseconds. Use Value: Clamps 13.3 A surges to ≤113 V, preventing damage to 100 V-rated CAN transceivers and microcontrollers. |
Use Scenario: Safeguarding H-bridge gate drivers and current sense amplifiers on 48–80 V motor control boards. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC bus input, triggered before MOVs or fuses react. Use Value: Sub-1 ns response time intercepts fast-switching induced spikes before they propagate to sensitive analog front-ends. |
| Telecom Power Supply Input | Renewable Energy Charge Controller |
Use Scenario: Secondary surge protection stage after upstream GDTs in 48 V telecom rectifier outputs. IC Role / Device Role / Timing Role: Fast-acting clamping element that supplements slower primary protectors. Use Value: 1500 W rating sustains repeated lightning-induced surges without degradation, extending system MTBF. |
Use Scenario: Overvoltage suppression on PV array input of 60–100 V MPPT charge controllers exposed to outdoor lightning risk. IC Role / Device Role / Timing Role: Standoff-rated protector maintaining 70.1 V blocking capability while clamping >80 V transients. Use Value: -55 °C to +175 °C operating range ensures functionality in desert-mounted enclosures with no derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Lower PPPM (600 W), smaller SMB package, VBR = 83.3–92.1 V, VC = 121 V @ 4.9 A | Not AEC-Q101 qualified; suited for space-constrained consumer-grade designs | Select when board area is critical and surge energy is ≤600 W; verify thermal path for repeated events |
| 1.5KE82A-E3/54 | Same electrical specs but E3 suffix only (JESD 201 Class 1A whisker test, commercial grade) | Lacks AEC-Q101 qualification; not approved for automotive safety-critical modules | Choose for cost-sensitive industrial controls where automotive qualification is unnecessary |
Compared with 1.5KE82HE3/54, SMBJ75A offers compact size at reduced surge capacity and qualification level, while 1.5KE82A-E3/54 matches performance but omits automotive reliability validation - making 1.5KE82HE3/54 the sole option when AEC-Q101 compliance and 1500 W clamping are jointly required.
Availability
1.5KE82HE3/54 is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, telecom power supplies, and renewable energy charge controllers requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1.5KE82HE3/54 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 applications where robustness, repeatable clamping, and AEC-Q101 validation are mandatory - such as engine control units and industrial automation power stages.
FAQ
What is the breakdown voltage tolerance for 1.5KE82HE3/54?
The 1.5KE82HE3/54 has a specified breakdown voltage range of 77.9 V to 86.1 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 82 V rating. This tight VBR window ensures predictable turn-on behavior in overvoltage protection circuits without excessive margin overhead. The value is measured per JEDEC standard and confirmed in Vishay's 88301 datasheet revision 09-Aug-2022.
Is 1.5KE82HE3/54 qualified for automotive use?
Yes, 1.5KE82HE3/54 carries the HE3 suffix, which denotes AEC-Q101 qualification per Vishay documentation. It is validated for automotive applications including powertrain and body electronics, meeting stress tests for temperature cycling, humidity bias, and mechanical shock. The HE3 marking also confirms JESD 201 Class 2 whisker resistance - essential for long-life deployment in vehicles.
What is the clamping voltage of 1.5KE82HE3/54 at its rated peak pulse current?
The 1.5KE82HE3/54 exhibits a maximum clamping voltage (VC) of 113 V at its rated peak pulse current (IPPM) of 13.3 A, tested with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. Data is extracted directly from Table 1 of Vishay document 88301.
How does the thermal resistance of 1.5KE82HE3/54 affect PCB layout?
The 1.5KE82HE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, meaning effective heat dissipation relies on direct conduction from the leads to a thermally conductive surface - such as a metal chassis or thick copper pour. Unlike devices with low RθJA, it does not depend on PCB copper area alone; optimal layout uses short, wide traces to external heatsinks or mounting hardware. This is documented in the Thermal Characteristics section of the 88301 datasheet.
Can 1.5KE82HE3/54 be used in bidirectional configurations?
No, 1.5KE82HE3/54 is a unidirectional TVS diode, identifiable by its cathode band marking and specified VBR/VWM values for reverse polarity only. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE82CA). Using 1.5KE82HE3/54 in AC or floating applications would result in forward conduction during negative half-cycles, causing failure. Always match polarity to circuit topology.
1.5KE82HE3/54 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE82HE3/54 FAQ
1.How can I place an order for 1.5KE82HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82HE3/54 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 1.5KE82HE3/54 reliable?
The price and inventory of 1.5KE82HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE82HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82HE3/54?
1.5KE82HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82HE3/54 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 1.5KE82HE3/54?
For technical support, including 1.5KE82HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82HE3/54 requirements.
6.How does Aetrix verify that 1.5KE82HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82HE3/54 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 1.5KE82HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE82HE3/54?
All 1.5KE82HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82HE3/54, 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 1.5KE82HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE82HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82HE3/54 Tags
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