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Vishay General Semiconductor - Diodes Division 1.5KE82AHE3/51
- Part No.:
- 1.5KE82AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82AHE3/51.pdf
- Description:
- TVS DIODE 70.1VWM 113VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,688
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Product details
Overview
1.5KE82AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 77.9 V to 86.1 V breakdown voltage (VBR) at 1 mA, 70.1 V maximum stand-off voltage (VWM), 113 V clamping voltage (VC) at 13.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, microcontrollers, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 1.5KE82AHE3/51 datasheet, 1.5KE82AHE3/51 pinout, 1.5KE82AHE3/51 application, or 1.5KE82AHE3/51 equivalent, this part supports rapid transient suppression in high-reliability DC systems where precise clamping, low leakage (<1 µA at VWM), AEC-Q101 qualification, and RoHS-compliant matte tin leads are required.
Technical Context
This TVS diode operates as a uni-directional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling sub-nanosecond response time (≤1 ns) and effective protection against ESD, lightning-induced surges, and inductive switching transients.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15.4 °C/W, supporting operation up to 175 °C junction temperature. The device is rated for 200 A non-repetitive forward surge current (IFSM) and dissipates 6.5 W under infinite heatsink conditions at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 77.9 V min. to 86.1 V max. at 1 mA - defines precise clamping initiation threshold for overvoltage events |
| Stand-off Voltage VWM | 70.1 V max. - ensures no conduction during normal 60 V–70 V DC rail operation |
| Clamping Voltage VC | 113 V at 13.3 A IPPM - limits downstream voltage stress during 10/1000 µs surge |
| Peak Pulse Power PPPM | 1500 W - sustains single 1 ms transients without failure, critical for lightning-level immunity |
| Reverse Leakage ID | <1 µA at VWM - prevents standby power loss and false triggering in low-power circuits |
| Operating Temperature | -55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronic control units per stress test requirements |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded DO-201AD molded epoxy package with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / cathode-referenced clamp node | Connected to protected line; conducts only during forward surge or fault reset |
| Cathode | Clamping reference / ground or return path | Typically tied to system ground or low-impedance return; defines polarity-sensitive protection direction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy transients common in 12 V/24 V automotive and industrial power buses |
| AEC-Q101 qualification | Validated for automotive-grade deployment including temperature cycling, HTRB, and ESD testing |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage margin between trigger and clamp, reducing stress on downstream ICs |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and JEDEC moisture sensitivity level 1 (MSL-1) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary uni-directional clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤113 V, preventing damage to 65 V-rated input MOSFETs and LDO regulators. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: Line-side TVS on signal pair to absorb induced surges from nearby motor drives or relay switching. Use Value: Sub-ns response clamps fast-rising transients before they propagate into precision op-amp front-ends. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: -48 V DC telecom rectifier outputs feeding base station backplane distribution. IC Role / Device Role / Timing Role: Uni-directional TVS on output rail to suppress coupling from adjacent AC/DC converters and lightning-induced surges. Use Value: Withstands repetitive 1500 W pulses without degradation, meeting GR-1089-CORE Level 3 surge immunity. |
Use Scenario: 19 V output of laptop AC adapters subject to user-induced short-circuit transients and ESD. IC Role / Device Role / Timing Role: Final-stage clamp before USB-PD controller or battery management IC. Use Value: Low 1 µA leakage avoids quiescent current penalty; 70.1 V VWM accommodates 19 V ±10% regulation tolerance. |
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. DO-201AD), VC = 123 V at 4.9 A | Better suited for space-constrained PCBs; lower energy handling requires derating in high-surge environments | Select when board area is limited and surge threat level is moderate (IEC 61000-4-5 Level 3) |
| 1.5KE82CA | Bi-directional variant; same VBR, VC, and PPPM but symmetric clamping for AC-coupled or floating lines | Required for differential signal lines (e.g., RS-485, CAN) or ungrounded AC inputs where polarity reversal occurs | Choose only if bidirectional protection is needed; not a drop-in replacement due to polarity and layout implications |
Compared with SMBJ80A and 1.5KE82CA, the 1.5KE82AHE3/51 delivers higher surge robustness in a through-hole package ideal for high-reliability power entry points, while maintaining AEC-Q101 compliance and proven thermal performance in leaded mounting configurations.
Availability
1.5KE82AHE3/51 is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor nodes, telecom DC distribution systems, and consumer adapter designs requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE82AHE3/51 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh-environment DC power systems, emphasizing rugged packaging, tight VBR tolerance, and AEC-Q101 qualification from initial design.
FAQ
What is the breakdown voltage range of the 1.5KE82AHE3/51?
The 1.5KE82AHE3/51 has a guaranteed breakdown voltage (VBR) range of 77.9 V to 86.1 V at a test current of 1 mA, measured per JEDEC standard. This range ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in 70 V-class power rails. The 1.5KE82AHE3/51 maintains this specification under ambient temperatures from -55 °C to +125 °C.
Is the 1.5KE82AHE3/51 suitable for automotive applications?
Yes, the 1.5KE82AHE3/51 is AEC-Q101 qualified and explicitly listed in Vishay's qualified devices for automotive use. It meets stress test requirements including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock - making it appropriate for engine control units, body electronics, and ADAS power supplies. The 1.5KE82AHE3/51 also complies with JESD 201 Class 2 whisker resistance.
What is the clamping voltage of the 1.5KE82AHE3/51 at its rated peak pulse current?
The 1.5KE82AHE3/51 clamps to a maximum of 113 V at its rated peak pulse current (IPPM) of 13.3 A, defined using the industry-standard 10/1000 µs double-exponential waveform. This clamping voltage directly determines the maximum stress imposed on downstream components during surge events, and the 1.5KE82AHE3/51 achieves this with a low clamping ratio of ~1.37 relative to its nominal VBR.
Does the 1.5KE82AHE3/51 have RoHS and lead-free compliance?
Yes, the "HE3" suffix in 1.5KE82AHE3/51 indicates full RoHS compliance per Directive 2011/65/EU and exemption 6(c), with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. The 1.5KE82AHE3/51 also satisfies JESD 201 Class 2 whisker resistance testing, confirming long-term reliability in lead-free assembly processes.
How does the 1.5KE82AHE3/51 differ from the 1.5KE82CA variant?
The 1.5KE82AHE3/51 is uni-directional, with cathode marking and asymmetric conduction, while the 1.5KE82CA is bi-directional and unmarked. Both share identical VBR, VC, and PPPM ratings, but the 1.5KE82AHE3/51 must be oriented correctly in-circuit to protect against reverse-polarity surges only, whereas the 1.5KE82CA protects both polarities - making them functionally distinct, not interchangeable, in most layouts.
1.5KE82AHE3/51 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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE82AHE3/51 FAQ
1.How can I place an order for 1.5KE82AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82AHE3/51 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 1.5KE82AHE3/51 reliable?
The price and inventory of 1.5KE82AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE82AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82AHE3/51?
1.5KE82AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82AHE3/51 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 1.5KE82AHE3/51?
For technical support, including 1.5KE82AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE82AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82AHE3/51 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 1.5KE82AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE82AHE3/51?
All 1.5KE82AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82AHE3/51, 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 1.5KE82AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE82AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82AHE3/51 Tags
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