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Vishay General Semiconductor - Diodes Division 1.5KE100HE3/54
- Part No.:
- 1.5KE100HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100HE3/54.pdf
- Description:
- TVS DIODE 81VWM 144VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,392
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Product details
Overview
1.5KE100HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 95.0 V to 105 V breakdown voltage (VBR), 85.5 V maximum standoff voltage (VWM), 137 V clamping voltage at 10.9 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 to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE100HE3/54 datasheet, 1.5KE100HE3/54 pinout, 1.5KE100HE3/54 application, or 1.5KE100HE3/54 equivalent, key selection criteria include verified clamping performance at rated IPPM, AEC-Q101 qualification status, JEDEC 1.5KE package thermal resistance (RθJL = 15.4 °C/W), RoHS-compliant matte tin plating, and JESD 201 Class 2 whisker resistance.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering bidirectional-capable surge suppression only in CA-suffix variants - the 1.5KE100HE3/54 is unidirectional, with cathode marked by color band. Its clamping action responds in <1 ns, limiting transient energy before sensitive downstream components experience overstress.
It is rated for 1500 W peak pulse power under 10/1000 µs waveform at 0.01% duty cycle, with derating above 25 °C ambient per Fig. 2. Thermal design relies on low junction-to-lead resistance (15.4 °C/W), enabling effective heat transfer to PCB copper or heatsinked leads without requiring external thermal management in most industrial and automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95.0 V / 105 V - ensures reliable avalanche conduction onset within defined tolerance at 1.0 mA test current |
| VWM | 85.5 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 137 V - clamped voltage during 10.9 A 10/1000 µs surge, defining worst-case stress on protected circuit |
| PPPM | 1500 W - peak transient power handling capability under standardized surge waveform |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine), supporting high-energy fault events |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports stable power dissipation without heatsinking |
Pinout & Package
Package: JEDEC Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter. Complies with RoHS and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance reference in unidirectional clamp configuration |
| Cathode (banded end) | Avalanche conduction terminal | Connected to protected line; conducts during reverse overvoltage to shunt surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Level 4 (4 kV) surges when properly laid out |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and chassis applications requiring zero defect reliability |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulses) |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability, long-life deployments including industrial control systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 85.5 V. Use Value: Limits transient voltage to ≤137 V during 10.9 A surges, preventing gate oxide rupture in downstream MOSFETs and PMICs. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) TVS on differential signal pair (e.g., 4–20 mA loop) referenced to local ground. Use Value: Sub-1 ns response prevents latch-up in op-amps and ADC drivers exposed to EFT bursts per IEC 61000-4-4. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Clamping |
Use Scenario: Secondary-side overvoltage suppression on 48 V PoE-powered equipment inputs. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input rail upstream of DC/DC converter, referenced to system ground. Use Value: Withstands repetitive 1500 W surges while maintaining 85.5 V working voltage margin above nominal 48 V input. | Use Scenario: Output overvoltage clamp on 12 V wall adapter supplying USB-C PD controllers or microcontrollers. IC Role / Device Role / Timing Role: Unidirectional suppressor between regulated output and ground, activated only during fault conditions. Use Value: Clamps fault voltage to 137 V before downstream LDOs or USB switch ICs exceed absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-E3/52 | Lower PPPM (600 W), smaller SMB package (RθJA = 110 °C/W vs. 75 °C/W), same VWM/VC range | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when board space is constrained and surge energy is ≤600 W; verify thermal margin without lead heatsinking |
| 1.5KE100A-E3/54 | Same electrical specs but HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; E3 only meets Class 1A | HE3 version approved for automotive under-hood use; E3 version restricted to commercial ambient (–55 °C to +150 °C) | Choose 1.5KE100HE3/54 for automotive OEM designs; use 1.5KE100A-E3/54 only for cost-sensitive commercial applications |
Compared with SMBJ100A-E3/52, the 1.5KE100HE3/54 delivers 2.5× higher surge power handling and superior thermal performance via its axial-leaded 1.5KE package, while its AEC-Q101 qualification and Class 2 whisker resistance make it suitable for mission-critical automotive deployments where the SMBJ variant is excluded.
Availability
1.5KE100HE3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom DC input, and consumer power adapter applications requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for 1.5KE100HE3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated through proven 1500 W clamping performance and extended temperature operation.
FAQ
What is the clamping voltage of the 1.5KE100HE3/54 under maximum rated surge current?
The 1.5KE100HE3/54 has a maximum clamping voltage (VC) of 137 V at its rated peak pulse current (IPPM) of 10.9 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during a full-rated transient event and is confirmed in the Vishay datasheet Document Number 88301, Table on page 2. The 1.5KE100HE3/54 maintains this clamping performance across its qualified operating temperature range.
Is the 1.5KE100HE3/54 AEC-Q101 qualified?
Yes, the 1.5KE100HE3/54 is AEC-Q101 qualified, as indicated by the "HE3" suffix per Vishay's ordering nomenclature and confirmed in Note (2) on page 3 of datasheet 88301. This qualification covers stress testing for high-temperature operating life, temperature cycling, and mechanical shock, making the 1.5KE100HE3/54 suitable for automotive powertrain and chassis applications where zero-defect reliability is mandatory.
What is the standoff voltage rating of the 1.5KE100HE3/54?
The 1.5KE100HE3/54 has a maximum working standoff voltage (VWM) of 85.5 V, meaning it remains in high-impedance blocking mode up to this DC or RMS voltage level with leakage current ≤1.0 µA. This value provides a 10% margin below the minimum breakdown voltage (95.0 V), ensuring stable operation during normal conditions while allowing rapid avalanche conduction during overvoltage events. This specification is listed in the Electrical Characteristics table for 1.5KE100A on page 2 of the 88301 datasheet.
How does the 1.5KE100HE3/54 differ from the non-HE3 version 1.5KE100A-E3/54?
The 1.5KE100HE3/54 differs from 1.5KE100A-E3/54 in three verified aspects: (1) AEC-Q101 qualification (HE3 only), (2) JESD 201 Class 2 whisker resistance (vs. Class 1A for E3), and (3) extended maximum junction temperature rating (+175 °C vs. +150 °C for E3). These differences are documented in Vishay's ordering information and notes on pages 2–3 of datasheet 88301. The 1.5KE100HE3/54 is therefore the only version approved for under-hood automotive use.
What package type does the 1.5KE100HE3/54 use, and what are its key mechanical features?
The 1.5KE100HE3/54 uses JEDEC Case Style 1.5KE: an axial-leaded, molded epoxy package with UL 94 V-0 flammability rating, 0.375" (9.5 mm) lead length, and 0.042" (1.07 mm) lead diameter. Its matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 durability standards. This package delivers low thermal resistance (RθJL = 15.4 °C/W) and supports manual or wave soldering at 275 °C for ≤10 s, as specified in the Mechanical Data section of datasheet 88301.
1.5KE100HE3/54 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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.4A
- 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
1.5KE100HE3/54 FAQ
1.How can I place an order for 1.5KE100HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100HE3/54 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 1.5KE100HE3/54 reliable?
The price and inventory of 1.5KE100HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE100HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100HE3/54?
1.5KE100HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100HE3/54 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 1.5KE100HE3/54?
For technical support, including 1.5KE100HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100HE3/54 requirements.
6.How does Aetrix verify that 1.5KE100HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100HE3/54 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 1.5KE100HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE100HE3/54?
All 1.5KE100HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100HE3/54, 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 1.5KE100HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE100HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100HE3/54 Tags
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