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Vishay General Semiconductor - Diodes Division 1.5KE82CHE3/54
- Part No.:
- 1.5KE82CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE82CHE3/54.pdf
- Description:
- TVS DIODE 66.4VWM 118VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,164
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Product details
Overview
1.5KE82CHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side 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 working voltage (VWM), 113 V clamping voltage at 13.3 A peak pulse current, 1500 W peak pulse power rating with 10/1000 µs waveform, 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 1.5KE82CHE3/54 datasheet, 1.5KE82CHE3/54 pinout, 1.5KE82CHE3/54 application, or 1.5KE82CHE3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), and real-world clamping behavior under transient surge conditions.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-grounded placement on positive supply rails, with clamping action triggered when reverse voltage exceeds VBR, diverting surge current away from downstream ICs.
The device complies with JEDEC standard 1.5KE case style, supports 200 A non-repetitive forward surge (IFSM), and maintains stable clamping performance up to 175 °C junction temperature - critical for under-hood automotive environments where thermal derating must be precisely modeled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 113 V - clamped voltage seen by protected circuit during full 13.3 A 10/1000 µs surge |
| PPPM | 1500 W - peak transient power handling capability without failure under standardized waveform |
| IPPM | 13.3 A - maximum non-repetitive surge current the device safely conducts per event |
| TJ max. | +175 °C - enables operation in high-temperature locations such as engine control units and power inverters |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports reliable heat dissipation into PCB copper |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (Case Style 1.5KE), axial-leaded, RoHS-compliant matte tin-plated leads, UL 94 V-0 rated molding compound. Dimensions: 5.3 mm × 5.3 mm × 9.5 mm (L × W × H), lead diameter 1.07 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential node (e.g., ground or return rail); carries surge current during forward conduction events |
| Cathode | Clamping reference terminal | Connected to protected line (e.g., +12 V rail); reverse-biased during normal operation, triggers clamping above VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation when properly mounted |
| 1 ns response time | Clamps before sensitive MOSFET gates or MCU I/O pins experience damaging overvoltage |
| Low RθJL (15.4 °C/W) | Enables effective heat transfer to PCB copper pour, reducing thermal runaway risk during repetitive surges |
Applications
| Automotive Power Input Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting vehicle infotainment head unit power input against load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery feed and DC-DC converter input. Use Value: Limits voltage to ≤113 V during 13.3 A transient, preventing damage to 36 V-rated input capacitors and controller ICs. | Use Scenario: Safeguarding gate drivers and current sense amplifiers on 400 V DC bus of variable frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-bus, clamping switching-induced spikes. Use Value: Clamps 10/1000 µs transients within 1 ns, preserving isolation barrier integrity and avoiding false overvoltage trips. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply |
Use Scenario: Shielding Ethernet PHY power pins and auxiliary bias rails from lightning-induced surges on PoE-powered equipment. IC Role / Device Role / Timing Role: Secondary-level TVS on 3.3 V/5 V auxiliary supplies downstream of primary AC-DC stage. Use Value: Maintains <1 μA leakage at 70.1 V, ensuring no impact on standby power budget while delivering 1500 W surge immunity. | Use Scenario: Securing main SMPS controller ICs in washing machine and HVAC control boards against mains-borne transients. IC Role / Device Role / Timing Role: Cathode-connected to rectified DC output, anode to ground, absorbing inductive kickback from relay coils. Use Value: Withstands 200 A single half-sine surge (8.3 ms), eliminating need for redundant fusing or oversized capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ80A | Lower PPPM (600 W), smaller SMB package (3.5 mm × 3.5 mm), VC = 123 V @ 4.9 A | Better suited for space-constrained consumer PCBs; insufficient for automotive load dump compliance | Select when board area is limited and surge energy is below 100 mJ |
| 1.5KE82A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101), identical 1.5KE package and pinout | Approved for industrial/commercial use only; not qualified for automotive production | Choose for cost-sensitive non-automotive designs requiring identical clamping performance |
Compared with 1.5KE82CHE3/54, SMBJ80A offers reduced footprint at the expense of 60% lower surge power handling and higher clamping voltage, while 1.5KE82A-E3/54 matches all key parameters but lacks AEC-Q101 validation - making it suitable only for non-automotive applications where qualification is not required.
Availability
1.5KE82CHE3/54 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controls, telecom infrastructure, and consumer appliance designs requiring stable component supply and AEC-Q101 assurance.
Supply support for 1.5KE82CHE3/54 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the 1.5KE82CHE3/54 under maximum rated surge current?
The 1.5KE82CHE3/54 exhibits a maximum clamping voltage (VC) of 113 V when subjected to its rated peak pulse current (IPPM) of 13.3 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream components see no more than 113 V during worst-case transient events, directly supporting design margin calculations for 100 V-rated capacitors and controllers.
Is the 1.5KE82CHE3/54 AEC-Q101 qualified and what does that mean for automotive use?
Yes, the 1.5KE82CHE3/54 is AEC-Q101 qualified, as confirmed in Vishay's documentation for the HE3 suffix variants. This certification validates its reliability under automotive-grade stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - enabling direct use in production automotive ECUs, ADAS modules, and body control units without additional qualification effort.
How does the 1.5KE82CHE3/54 differ from the standard 1.5KE82A-E3/54 variant?
The 1.5KE82CHE3/54 differs from 1.5KE82A-E3/54 solely in qualification level: the "H" in HE3 denotes AEC-Q101 qualification, while the base 1.5KE82A-E3/54 is commercial-grade. All electrical parameters - VBR, VWM, VC, PPPM, and package - are identical. The 1.5KE82CHE3/54 is intended for automotive applications requiring certified reliability.
What is the thermal resistance and how does it affect PCB layout for the 1.5KE82CHE3/54?
The 1.5KE82CHE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W. This low value means efficient heat transfer from the die to the leads, so PCB layout should maximize copper area connected to both anode and cathode pads - especially the cathode pad - to act as a heatsink. Avoid narrow traces; use ≥2 oz copper and thermal vias under pads for sustained surge duty cycles.
Can the 1.5KE82CHE3/54 be used in bidirectional configurations?
No, the 1.5KE82CHE3/54 is a unidirectional TVS diode, indicated by the absence of "CA" in its part number. Bidirectional versions (e.g., 1.5KE82CAHE3/54) exist in the same family but have different internal construction and symmetric clamping in both polarities. Using 1.5KE82CHE3/54 in bidirectional circuits will result in forward conduction during negative transients, potentially causing failure.
1.5KE82CHE3/54 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE82CHE3/54 FAQ
1.How can I place an order for 1.5KE82CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE82CHE3/54 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 1.5KE82CHE3/54 reliable?
The price and inventory of 1.5KE82CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE82CHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE82CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE82CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE82CHE3/54?
1.5KE82CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE82CHE3/54 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 1.5KE82CHE3/54?
For technical support, including 1.5KE82CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE82CHE3/54 requirements.
6.How does Aetrix verify that 1.5KE82CHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE82CHE3/54 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 1.5KE82CHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE82CHE3/54?
All 1.5KE82CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE82CHE3/54, 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 1.5KE82CHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE82CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE82CHE3/54 Tags
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