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Vishay General Semiconductor - Diodes Division 1.5KE82CA-E3/54
- Part No.:
- 1.5KE82CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82CA-E3/54.pdf
- Description:
- TVS DIODE 70.1VWM 113VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,175
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Product details
Overview
1.5KE82CA-E3/54 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 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 sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE82CA-E3/54 datasheet, 1.5KE82CA-E3/54 pinout, 1.5KE82CA-E3/54 application, or 1.5KE82CA-E3/54 equivalent, this part delivers verified bidirectional clamping performance with JEDEC 1.5KE package compatibility, AEC-Q101 qualification eligibility (HE3 variant), and RoHS-compliant matte tin plating - critical for ESD/lightning surge resilience in high-reliability embedded systems.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for sub-nanosecond 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 sustains 1500 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, derates linearly above 25 °C ambient per Fig. 2, and exhibits a ±0.105 %/°C temperature coefficient of VBR - ensuring stable clamping threshold across automotive thermal profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - ensures reliable triggering above normal operating voltage while avoiding false trips during transients. |
| VWM | 70.1 V - maximum continuous reverse working voltage compatible with 72 V nominal DC bus or 48 V industrial systems. |
| VC @ IPPM | 113 V - clamping voltage at 13.3 A limits downstream component stress during 1500 W surge events. |
| PPPM | 1500 W - peak pulse power handling for lightning-induced surges (IEC 61000-4-5 Level 4) on power rails. |
| IPPM | 13.3 A - peak pulse current capacity under standardized 10/1000 µs waveform defines surge energy absorption limit. |
| Junction Temp Range | –55 °C to +175 °C - supports operation in under-hood automotive, motor drive, and industrial control environments. |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded package with UL 94 V-0 flammability rating. |
Pinout & Package
1.5KE82CA-E3/54 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, solderable per J-STD-002 and JESD 22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No cathode band; terminals interchangeable - enables placement in AC or floating circuits without orientation check. |
| Lead 1 / Lead 2 | Surge current entry/exit points | Leads serve as low-inductance connection points to protected line and ground; thermal resistance RθJL = 15.4 °C/W enables direct PCB trace heat sinking. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under repeated surge stress without parameter drift. |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment up to Level 4 (4 kV/2 Ω). |
| Sub-nanosecond response time | Clamps transients within <1 ns - faster than MOVs or polymer-based protectors - preserving signal integrity in high-speed interfaces. |
| AEC-Q101 qualified option (HE3 suffix) | Validated for automotive under-hood applications including engine control modules and ADAS sensor front-ends. |
| UL 94 V-0 molded epoxy case | Self-extinguishing encapsulation prevents fire propagation in safety-critical power supply and battery management systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground to shunt surge energy before it reaches sensitive interface ICs. Use Value: Maintains signal fidelity during 100 V/50 ms load dump events by clamping to ≤113 V, preventing latch-up or permanent damage to 5 V/3.3 V receivers. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or optocoupler input stage, coordinated with series current-limiting resistor. Use Value: Absorbs 1500 W transients without degradation, enabling >100,000 surge cycles - extending maintenance intervals in factory automation systems. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Secondary protection on POTS or DSL line cards exposed to lightning-induced common-mode surges on twisted-pair feeds. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential-mode across line pair, upstream of GDT or transformer isolation. Use Value: Clamps differential surges to <113 V within 1 ns, preventing saturation of line transformers and maintaining bit-error-rate compliance. |
Use Scenario: Input-stage surge suppression on 48 V telecom rectifiers or 24 V industrial SMPS front-ends subjected to AC mains switching transients. IC Role / Device Role / Timing Role: First-line transient absorber across bulk capacitor terminals, limiting voltage overshoot during line recovery. Use Value: Withstands repetitive 1500 W pulses at 0.01% duty cycle, reducing need for oversized input capacitors and improving power density. |
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 | DO-214AA package (SMB), lower 85 V VBR min (80.8–89.2 V), same 1500 W rating but higher 116 V VC at 13.0 A. | Surface-mount alternative for space-constrained PCBs; less suitable for high-temperature leaded mounting due to lower thermal mass. | Select SMBJ85CA when board space is limited and reflow compatibility is required; verify thermal relief design for >125 °C ambient. |
| 1.5KE82A-E3/54 | Unidirectional version with cathode band marking; identical VBR, VWM, and VC specs but asymmetric conduction - forward voltage drop applies only in one direction. | Required where DC bias exists and reverse conduction must be blocked (e.g., DC power rail protection with polarity-sensitive loads). | Choose 1.5KE82A-E3/54 for unidirectional DC systems; use 1.5KE82CA-E3/54 only when AC, floating, or bidirectional signal protection is needed. |
Compared with SMBJ85CA, 1.5KE82CA-E3/54 offers superior thermal dissipation via axial leads and higher surge endurance in high-temperature environments; versus 1.5KE82A-E3/54, it provides symmetrical clamping essential for AC-coupled sensors and transformer-isolated interfaces - eliminating risk of reverse conduction failure.
Availability
1.5KE82CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line cards, and 48 V power supply input stages requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for 1.5KE82CA-E3/54 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 automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - delivering consistent 1500 W surge capability, AEC-Q101 qualification paths, and robust packaging for under-hood and factory-floor deployment.
FAQ
What is the clamping voltage of the 1.5KE82CA-E3/54 under a 10/1000 µs surge?
The 1.5KE82CA-E3/54 clamps to a maximum of 113 V at its rated peak pulse current of 13.3 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and reflects worst-case voltage seen by downstream circuitry during full-power surge events - critical for validating safe operating margins of protected ICs.
Is the 1.5KE82CA-E3/54 RoHS compliant and lead-free?
Yes, the 1.5KE82CA-E3/54 carries the "E3" suffix, indicating full RoHS compliance per Directive 2011/65/EU and exemption 6(c)-IV. Its matte tin-plated leads meet J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance, with no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE content.
Does the 1.5KE82CA-E3/54 have AEC-Q101 qualification?
The base 1.5KE82CA-E3/54 is commercial-grade; however, the HE3 variant (e.g., 1.5KE82CAHE3_B) is AEC-Q101 qualified for automotive applications. The qualification covers temperature cycling, humidity testing, and surge endurance - confirmed in Vishay Document Number 88301, Note (2) on page 3.
How does the bidirectional design of the 1.5KE82CA-E3/54 affect circuit layout?
The 1.5KE82CA-E3/54 has no polarity marking and symmetrical electrical behavior - allowing placement in either orientation across protected lines. This eliminates orientation verification during assembly and simplifies layout for AC-coupled, transformer-isolated, or floating differential signals such as RS-485 or CAN bus stubs.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE82CA-E3/54?
The 1.5KE82CA-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, per Vishay Document Number 88301, page 3. This enables effective heat transfer through axial leads into PCB copper pours or heatsinks - supporting sustained operation at elevated ambient temperatures when mounted with ≥9.5 mm lead length.
1.5KE82CA-E3/54 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE82CA-E3/54 FAQ
1.How can I place an order for 1.5KE82CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82CA-E3/54 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 1.5KE82CA-E3/54 reliable?
The price and inventory of 1.5KE82CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82CA-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE82CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82CA-E3/54?
1.5KE82CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82CA-E3/54 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 1.5KE82CA-E3/54?
For technical support, including 1.5KE82CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82CA-E3/54 requirements.
6.How does Aetrix verify that 1.5KE82CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82CA-E3/54 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 1.5KE82CA-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE82CA-E3/54?
All 1.5KE82CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82CA-E3/54, 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 1.5KE82CA-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE82CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82CA-E3/54 Tags
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