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Vishay General Semiconductor - Diodes Division 1.5KE10A-E3/54
- Part No.:
- 1.5KE10A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10A-E3/54.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,347
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Product details
Overview
1.5KE10A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 9.5 V minimum breakdown voltage, 8.55 V maximum standoff voltage, 14.5 V clamping voltage at 103 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 sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE10A-E3/54 datasheet, 1.5KE10A-E3/54 pinout, 1.5KE10A-E3/54 application, or 1.5KE10A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under surge conditions, thermal derating behavior, and direct alternative options for circuit-level ESD and lightning transient protection.
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-referenced clamping on positive transients, with a 0.073 %/°C temperature coefficient of breakdown voltage ensuring stable threshold behavior across wide temperature ranges.
The device complies with JEDEC standard test waveforms (10/1000 µs and 8.3 ms half-sine), supports 200 A non-repetitive forward surge current, and exhibits 3.5 V maximum forward voltage at 100 A - critical for minimizing conduction loss during high-energy clamping events in DC power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 9.5–10.5 V at 1 mA test current - defines precise clamping initiation threshold for overvoltage detection |
| Standoff Voltage VWM | 8.55 V maximum - ensures no conduction during normal 8 V DC rail operation |
| Clamping Voltage VC | 14.5 V at 103 A IPPM - limits downstream IC voltage stress during 1500 W transient events |
| Peak Pulse Power PPPM | 1500 W with 10/1000 µs waveform - sustains single high-energy surges without failure |
| Operating Temperature | -55 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
| Thermal Resistance RθJL | 15.4 °C/W junction-to-lead - enables effective heat dissipation through PCB copper pours or heatsinked leads |
| Leakage Current ID | 10 µA max at VWM - prevents standby power loss in battery-powered sensor nodes |
Pinout & Package
Package: JEDEC case style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS compliant (E3 suffix), 0.968 g unit weight, supplied in 13" paper tape and reel (54 mm reel width, 1400 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connects to protected line ground or low-side return path; enables clamping when transient exceeds VBR |
| Cathode | Current exit during reverse-biased clamping | Marked by color band; ties to positive rail or signal line - absorbs energy by shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) on 50 Ω source impedance without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive logic or analog circuits experience damaging overvoltage |
| AEC-Q101 qualification option | Available in HE3 variant for automotive applications requiring validated reliability per stress test standards |
| Low incremental surge resistance | Minimizes VC overshoot during high di/dt events - critical for protecting MOSFET gate drivers |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Modules |
|---|---|
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: Unidirectional TVS placed between signal line and chassis ground to clamp positive transients above 8.55 V. Use Value: Limits voltage seen by transceiver IC to ≤14.5 V during 100 A surge, preventing latch-up or oxide breakdown. | Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Primary front-end protector on each optocoupler input, absorbing energy before current-limiting resistor. Use Value: Maintains system uptime by surviving repeated 1 kV/500 A transients per IEC 61000-4-5 without parameter shift. |
| Consumer Power Adapter Outputs | Telecom Line Card Interfaces |
Use Scenario: Secondary-side overvoltage suppression on 5–12 V SMPS outputs feeding USB peripherals or display controllers. IC Role / Device Role / Timing Role: Fast-acting clamp parallel to output capacitor, triggered only during fault conditions (e.g., feedback loop failure). Use Value: Prevents downstream IC destruction by limiting output to 14.5 V while maintaining <10 µA leakage during nominal operation. | Use Scenario: Protection of Ethernet PHY interface pins and RS-485 transceivers against lightning-induced common-mode surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS on each data line referenced to local ground plane, coordinated with common-mode chokes. Use Value: Achieves >30 kV ESD immunity (IEC 61000-4-2) and 2 kV surge immunity (IEC 61000-4-5) without signal integrity impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Lower PPPM (600 W), smaller SMB package (3.5 × 3.5 mm), 10.0–11.1 V VBR, 8.55 V VWM | Better suited for space-constrained PCBs with lower surge requirements (e.g., consumer USB ports) | Select SMBJ10A when board area is limited and peak surge energy does not exceed 600 W. |
| 1.5SMC10A | Same 1500 W rating and 1.5KE footprint, but SMC package (7.1 × 6.2 mm), 9.5–10.5 V VBR, 8.55 V VWM, higher RθJA (60 °C/W) | Offers identical electrical specs with improved mechanical robustness for high-vibration environments | Choose 1.5SMC10A when enhanced lead strength and thermal margin via larger pad area are required. |
Compared with 1.5KE10A-E3/54, SMBJ10A trades surge capacity for compactness, while 1.5SMC10A retains full 1500 W capability in a physically sturdier SMC outline - both require layout review due to differing thermal and mechanical footprints.
Availability
1.5KE10A-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line card interfaces requiring stable component supply and long-term production continuity.
Supply support for 1.5KE10A-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 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 sustained 1500 W surge handling and wide temperature operation are mandatory.
FAQ
What is the clamping voltage of the 1.5KE10A-E3/54 under maximum rated surge current?
The 1.5KE10A-E3/54 has a maximum clamping voltage (VC) of 14.5 V at its rated peak pulse current (IPPM) of 103 A, measured using the standardized 10/1000 µs waveform. This value ensures that downstream components see no more than 14.5 V during a full 1500 W transient event. The 1.5KE10A-E3/54 maintains this clamping performance across its specified operating temperature range and is validated per JEDEC test methods.
Is the 1.5KE10A-E3/54 suitable for automotive applications?
The base 1.5KE10A-E3/54 is commercial-grade and RoHS-compliant, but an AEC-Q101 qualified version - 1.5KE10AHE3_B - is available for automotive use. The 1.5KE10A-E3/54 itself meets key automotive environmental requirements including -55 °C to +175 °C operating temperature and JESD201 Class 1A whisker resistance. For mission-critical vehicle subsystems, specify the HE3 variant to ensure full qualification compliance.
How does the 1.5KE10A-E3/54 differ from bidirectional TVS diodes like 1.5KE10CA?
The 1.5KE10A-E3/54 is unidirectional and clamps only positive transients relative to its cathode, whereas 1.5KE10CA suppresses voltage excursions in both directions. The 1.5KE10A-E3/54 has a marked cathode band and is used on DC rails or single-polarity signal lines; 1.5KE10CA lacks polarity marking and suits AC-coupled or differential lines. Both share identical VBR, VWM, and PPPM ratings, but their circuit integration and grounding schemes differ fundamentally.
What is the thermal resistance and how does it affect PCB layout for the 1.5KE10A-E3/54?
The 1.5KE10A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, meaning each watt dissipated raises the junction temperature 15.4 °C above the lead temperature. To manage heat during repetitive surges, PCB layout must provide generous copper pour on both anode and cathode pads, with ≥2 oz copper and thermal vias to inner ground planes. The 1.5KE10A-E3/54's RθJA is 75 °C/W, so ambient cooling alone is insufficient for sustained duty cycles.
Can the 1.5KE10A-E3/54 be used in parallel to increase surge handling capacity?
No - the 1.5KE10A-E3/54 should not be paralleled without external current-sharing resistors or matched dynamic impedance characteristics, as minor VBR tolerances (±5%) cause uneven current division and potential thermal runaway. For higher power needs, select a single higher-rated device such as 1.5KE12A or use purpose-designed multi-chip TVS arrays. The 1.5KE10A-E3/54 datasheet explicitly warns against direct parallel connection without balancing networks.
1.5KE10A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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
1.5KE10A-E3/54 FAQ
1.How can I place an order for 1.5KE10A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10A-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 1.5KE10A-E3/54 reliable?
The price and inventory of 1.5KE10A-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 1.5KE10A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE10A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10A-E3/54?
1.5KE10A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10A-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 1.5KE10A-E3/54?
For technical support, including 1.5KE10A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE10A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10A-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 1.5KE10A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE10A-E3/54?
All 1.5KE10A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10A-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 1.5KE10A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE10A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10A-E3/54 Tags
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