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Vishay General Semiconductor - Diodes Division 1.5KE8.2HE3/54
- Part No.:
- 1.5KE8.2HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE8.2HE3/54.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,626
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Product details
Overview
1.5KE8.2HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection on DC power rails and signal lines. It features a 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V maximum standoff voltage (VWM), 12.1 V clamping voltage (VC) at 124 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the 1.5KE8.2HE3/54 datasheet, 1.5KE8.2HE3/54 pinout, 1.5KE8.2HE3/54 application, or 1.5KE8.2HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping performance data - all confirmed from Vishay's official Document Number 88301 (Rev. 09-Aug-2022).
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response time (<1 ns) to transient surges. Its unidirectional polarity uses a cathode band marking and supports 200 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave, with VF = 3.5 V at 100 A.
It is rated for -55 °C to +175 °C operating junction temperature, exhibits 0.065 %/°C temperature coefficient of VBR, and meets UL 94 V-0 flammability requirements in its molded epoxy case. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification per Note (2) in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines reliable avalanche initiation threshold under standard test conditions |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 200 μA |
| VC @ IPPM | 12.1 V at 124 A - clamping voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W - peak pulse power handling with 10/1000 µs waveform, enabling robust lightning/surge immunity |
| IFSM | 200 A - surge current capability for 8.3 ms half-sine, supporting high-energy inductive switch-off events |
| TJ max | +175 °C - extended junction temperature rating allows operation in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informing heatsink-free PCB layout limits |
Pinout & Package
Package: JEDEC Case Style 1.5KE - axial-leaded, molded epoxy body (0.375" lead length), UL 94 V-0 rated, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional TVS configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 12 V rail); conducts during positive transients to clamp voltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repetitive surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) without derating |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications per stress test requirements |
| Low incremental surge resistance | Minimizes VC – VBR delta (ΔVC = 4.31 V), reducing let-through energy to protected circuitry |
| JESD 201 Class 2 whisker resistance | Ensures solder joint integrity in high-vibration automotive environments over full temperature range |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery feed to engine control unit (ECU) exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ECU input capacitor to clamp transients above 12.1 V within <1 ns. Use Value: Prevents MOSFET gate oxide rupture and microcontroller brownout by limiting peak rail voltage to ≤12.1 V during 1500 W surges. | Use Scenario: 4–20 mA current loop interface in factory automation PLC analog input module. IC Role / Device Role / Timing Role: TVS connected across loop terminals to suppress ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback from solenoid drivers. Use Value: Maintains loop accuracy by limiting reverse leakage to <200 µA at 7.02 V while clamping fast transients before op-amp input stage damage occurs. |
| Consumer Power Adapter Output Protection | Telecom DC Power Distribution Board |
Use Scenario: Secondary-side 5 V output of wall adapter subjected to conducted surges via USB-C cable coupling. IC Role / Device Role / Timing Role: TVS mounted at adapter output connector to shunt surge energy before reaching USB PD controller and Type-C port IC. Use Value: Enables pass-level compliance with UL 62368-1 Annex D surge testing using single-device solution with no additional series impedance. | Use Scenario: -48 V DC telecom rack power distribution where lightning-induced surges propagate along backplane traces. IC Role / Device Role / Timing Role: TVS installed at board edge on -48 V rail to clamp common-mode transients before reaching DC/DC converters and FPGA power supplies. Use Value: Provides 1500 W surge dissipation margin beyond GR-1089-CORE Level 3 requirements (10/1000 µs, 1.2 kV), eliminating need for multi-stage protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), VC = 12.5 V @ 48.2 A | Better suited for space-constrained PCBs but requires parallel devices for 1500 W duty | Select when board area is critical and surge duty cycle is low; verify thermal derating at 75 °C ambient |
| 1.5KE8.2A-E3/54 | Same electrical specs but lacks AEC-Q101 qualification and JESD 201 Class 2 whisker rating | Acceptable for commercial-grade industrial equipment but not automotive OEM designs | Choose only if AEC-Q101 and enhanced whisker resistance are not required for the target application |
Compared with 1.5KE8.2HE3/54, SMBJ8.0A trades peak power and thermal robustness for compactness, while 1.5KE8.2A-E3/54 matches core electrical performance but omits automotive qualification - making 1.5KE8.2HE3/54 the sole option meeting both 1500 W surge handling and AEC-Q101 requirements in axial form factor.
Availability
1.5KE8.2HE3/54 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, consumer power adapters, and telecom DC distribution boards requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot history.
Supply support for 1.5KE8.2HE3/54 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 validation.
The 1.5KE family was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 qualification are mandatory design requirements.
FAQ
What is the clamping voltage of the 1.5KE8.2HE3/54 under maximum surge conditions?
The 1.5KE8.2HE3/54 has a maximum clamping voltage (VC) of 12.1 V at 124 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per Figure 7 in Vishay Document 88301 and ensures protected circuits experience no more than 12.1 V during worst-case transients. The 1.5KE8.2HE3/54 maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C) due to its low 0.065 %/°C VBR temperature coefficient.
Is the 1.5KE8.2HE3/54 qualified for automotive applications?
Yes, the 1.5KE8.2HE3/54 is AEC-Q101 qualified, as confirmed in Note (2) of Vishay Document 88301 (Rev. 09-Aug-2022). The HE3 suffix explicitly denotes RoHS compliance and AEC-Q101 qualification for the 1.5KE6.8AHE3_B to 1.5KE220AHE3_B series. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making the 1.5KE8.2HE3/54 suitable for engine control, body electronics, and ADAS power domains.
What is the standoff voltage rating for the 1.5KE8.2HE3/54?
The 1.5KE8.2HE3/54 has a maximum steady-state reverse standoff voltage (VWM) of 7.02 V, meaning it remains non-conductive with leakage current ≤200 µA up to this voltage at 25 °C. This parameter is critical for ensuring the device does not interfere with normal 5 V or 3.3 V system operation while remaining ready to clamp transients exceeding its breakdown threshold. The 1.5KE8.2HE3/54 maintains this VWM rating across its full -55 °C to +175 °C operating range.
How does the 1.5KE8.2HE3/54 differ from the standard 1.5KE8.2A variant?
The 1.5KE8.2HE3/54 differs from the base 1.5KE8.2A in three key ways: it carries the HE3 suffix indicating AEC-Q101 qualification and JESD 201 Class 2 whisker resistance (vs. Class 1A for E3), uses a B revision code denoting enhanced process control, and is supplied in 13" paper tape and reel (package code 54, 1400 pcs/reel). Electrically, both share identical VBR, VWM, VC, and PPPM specifications - but only the 1.5KE8.2HE3/54 is approved for automotive production use.
What is the thermal resistance of the 1.5KE8.2HE3/54, and how does it affect PCB layout?
The 1.5KE8.2HE3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, measured with 0.375" (9.5 mm) lead length per JEDEC standards. This means that at 6.5 W steady-state power dissipation, the junction temperature rises 488 °C above ambient - confirming the device is intended for transient-only operation. For PCB layout, this RθJA value implies no copper pour or heatsinking is needed, but designers must ensure ≥2 mm clearance from heat sources and avoid enclosing the axial leads in conformal coating to maintain natural convection cooling.
1.5KE8.2HE3/54 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):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 120A
- 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
1.5KE8.2HE3/54 FAQ
1.How can I place an order for 1.5KE8.2HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE8.2HE3/54 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 1.5KE8.2HE3/54 reliable?
The price and inventory of 1.5KE8.2HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE8.2HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE8.2HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE8.2HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE8.2HE3/54?
1.5KE8.2HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE8.2HE3/54 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 1.5KE8.2HE3/54?
For technical support, including 1.5KE8.2HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE8.2HE3/54 requirements.
6.How does Aetrix verify that 1.5KE8.2HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE8.2HE3/54 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 1.5KE8.2HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE8.2HE3/54?
All 1.5KE8.2HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE8.2HE3/54, 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 1.5KE8.2HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE8.2HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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