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Vishay General Semiconductor - Diodes Division 1.5KE82HE3/73
- Part No.:
- 1.5KE82HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82HE3/73.pdf
- Description:
- TVS DIODE 66.4VWM 118VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,244
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Product details
Overview
1.5KE82HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC 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. It is used in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1.5KE82HE3/73 datasheet, 1.5KE82HE3/73 pinout, 1.5KE82HE3/73 application, or 1.5KE82HE3/73 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 clamping behavior under lightning-surge transients.
Technical Context
This device functions as a silicon avalanche diode with glass-passivated junction, optimized for fast transient suppression (response time < 1 ns). Its unidirectional polarity uses a cathode band marking, and it complies with JESD 22-B106 solder dip (275 °C, 10 s) and JESD 201 Class 2 whisker testing due to the HE3 suffix.
The 1.5KE82HE3/73 delivers 1500 W peak pulse power handling per 10/1000 µs waveform at 0.01% duty cycle, with clamping performance validated up to 13.3 A IPPM and thermal derating defined per Fig. 2 and Fig. 5 in the official datasheet. It is rated for 200 A non-repetitive forward surge (IFSM) and exhibits VF = 3.5 V at 100 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - ensures reliable avalanche conduction onset within specified tolerance at 1 mA test current |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 113 V - clamping voltage at 13.3 A peak pulse, limiting downstream voltage stress during surge events |
| PPPM | 1500 W - peak pulse power dissipation capability for 10/1000 µs waveform, defining surge robustness |
| IPPM | 13.3 A - maximum non-repetitive peak pulse current supported without failure |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and high-temperature industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports effective heat transfer to PCB copper |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return in unidirectional configuration; must be routed with minimal inductance |
| Cathode | Protected line connection / clamping node | Marked with color band; connects to line being protected (e.g., 24 V rail); carries full surge current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance traces |
| Fast response time (< 1 ns) | Clamps transients before sensitive ICs (e.g., CAN transceivers, microcontrollers) experience overvoltage damage |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability assemblies, critical for automotive and aerospace deployments |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECU power input subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input to limit transient voltage to ≤113 V. Use Value: Prevents destruction of buck controller ICs by clamping 100 V+ load dump spikes within nanoseconds while surviving >1000 surges. | Use Scenario: 4–20 mA analog sensor loop exposed to ESD and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS on signal line between field transmitter and PLC analog input, referenced to local ground. Use Value: Limits induced transients to <113 V, preserving ADC accuracy and preventing latch-up in precision op-amps and isolators. |
| Telecom DC Power Feeds | Consumer Power Adapter Output Protection |
Use Scenario: -48 V telecom rectifier output feeding remote radio units, subject to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Standoff-rated TVS on negative rail, configured anode-to-rail to protect downstream DC-DC and PMIC stages. Use Value: Withstands 1500 W surges while maintaining 70.1 V working voltage margin-critical for legacy -48 V systems with tight headroom. | Use Scenario: 19 V output of laptop AC adapter exposed to user-handling ESD and accidental short-circuit transients. IC Role / Device Role / Timing Role: Final-stage TVS on adapter output connector, placed immediately before USB-PD or barrel jack interface. Use Value: Clamps 8 kV contact ESD per IEC 61000-4-2 to safe levels (<113 V), protecting connected host devices without affecting steady-state regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A | Lower PPPM (600 W), smaller SMB package (vs. 1.5KE axial), VBR = 88.9–98.3 V, VC = 129 V @ 4.7 A | Not AEC-Q101 qualified; suited for space-constrained consumer designs where 1500 W rating is unnecessary | Select SMBJ80A only if board area is critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| 1.5KE82A-E3/54 | Same electrical specs and 1.5KE package, but E3 suffix only (RoHS-compliant commercial grade, no AEC-Q101 qualification) | Lacks automotive qualification; acceptable for industrial/commercial power supplies not requiring AEC validation | Choose 1.5KE82A-E3/54 for cost-sensitive non-automotive applications where AEC-Q101 is not mandated. |
Compared with SMBJ80A and 1.5KE82A-E3/54, the 1.5KE82HE3/73 uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and axial-leaded thermal performance (RθJL = 15.4 °C/W), making it the only option among the three qualified for under-hood automotive use with full load-dump resilience.
Availability
1.5KE82HE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power feeds, and consumer adapter outputs requiring stable component supply across extended temperature ranges and high-reliability surge immunity.
Supply support for 1.5KE82HE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and ruggedized performance.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where sustained surge robustness and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5KE82HE3/73 under a 10/1000 µs surge?
The 1.5KE82HE3/73 clamps to a maximum of 113 V at its rated peak pulse current of 13.3 A (IPPM) under a 10/1000 µs waveform. This value is measured per standard test conditions (TA = 25 °C) and defines the upper voltage limit imposed on protected circuitry during surge events. The 1.5KE82HE3/73 maintains this clamping performance across its full operating temperature range, supporting robust design margins in automotive and industrial applications.
Is the 1.5KE82HE3/73 AEC-Q101 qualified?
Yes, the 1.5KE82HE3/73 is AEC-Q101 qualified, as confirmed by Vishay's documentation (Note 2 on page 3 of document 88301). The "HE3" suffix explicitly denotes RoHS compliance and AEC-Q101 qualification for the 1.5KE6.8AHE3_B through 1.5KE220AHE3_B family, which includes the 1.5KE82HE3/73. This qualification covers stress tests including HTRB, HTGB, TCT, and mechanical shock, validating suitability for automotive under-hood applications.
What does the "HE3/73" suffix mean in 1.5KE82HE3/73?
The "HE3" portion indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/73" denotes the specific packaging variant-73" tape-and-reel, 1400 pieces per reel, using 13" diameter paper tape. This differs from "/54" (54" tape) or "/B" (bulk). The 1.5KE82HE3/73 is supplied in this standardized reel format for automated SMT placement compatibility despite its axial-leaded form factor.
Can the 1.5KE82HE3/73 be used in bidirectional configurations?
No, the 1.5KE82HE3/73 is a unidirectional TVS diode, as indicated by its "A" suffix (e.g., 1.5KE82A) and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., 1.5KE82CA) and lack polarity markings. Using the 1.5KE82HE3/73 in bidirectional circuits would result in forward conduction during negative transients, causing failure. For bidirectional protection, select 1.5KE82CAHE3/_ variants instead.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE82HE3/73?
The 1.5KE82HE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, per Vishay's Thermal Characteristics table (page 3, document 88301). This low value reflects efficient heat conduction from the die through the leads into PCB copper, enabling reliable operation at elevated ambient temperatures-especially important in enclosed automotive modules where airflow is limited. This parameter directly informs heatsinking and layout decisions for the 1.5KE82HE3/73.
1.5KE82HE3/73 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:
- 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
1.5KE82HE3/73 FAQ
1.How can I place an order for 1.5KE82HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82HE3/73 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 1.5KE82HE3/73 reliable?
The price and inventory of 1.5KE82HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE82HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82HE3/73?
1.5KE82HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82HE3/73 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 1.5KE82HE3/73?
For technical support, including 1.5KE82HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82HE3/73 requirements.
6.How does Aetrix verify that 1.5KE82HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82HE3/73 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 1.5KE82HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE82HE3/73?
All 1.5KE82HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82HE3/73, 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 1.5KE82HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE82HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82HE3/73 Tags
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