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Vishay General Semiconductor - Diodes Division 1.5KE10A-E3/51
- Part No.:
- 1.5KE10A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10A-E3/51.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,952
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Product details
Overview
1.5KE10A-E3/51 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 9.5 V minimum breakdown voltage (VBR), 8.55 V maximum working peak reverse voltage (VWM), 14.5 V clamping voltage (VC) at 10.3 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the 1.5KE10A-E3/51 datasheet, 1.5KE10A-E3/51 pinout, 1.5KE10A-E3/51 application, or 1.5KE10A-E3/51 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under transient stress, thermal resistance data, and direct alternatives for ESD/lightning surge protection design validation.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power handling with 10/1000 µs waveform enables robust protection against lightning-induced surges and inductive switching transients in 12 V and 24 V systems.
It exhibits 0.073 %/°C temperature coefficient of VBR, 10 µA max reverse leakage at VWM, and 3.5 V forward voltage at 100 A - confirming suitability for high-current surge suppression without forward conduction interference in series-connected protection schemes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.5 V / 10.5 V - defines reliable turn-on threshold for clamping transients above nominal rail voltage |
| VWM | 8.55 V - maximum continuous reverse voltage before leakage exceeds 10 µA; sets safe operating margin below VBR |
| VC @ IPPM | 14.5 V - clamped voltage during 10.3 A 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1500 W - peak transient energy absorption capacity per single 1 ms pulse; critical for IEC 61000-4-5 Level 4 compliance |
| IPPM | 10.3 A - maximum non-repetitive surge current supported at rated clamping voltage |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements for repetitive surge duty |
Pinout & Package
1.5KE10A-E3/51 is housed in the standard axial-leaded JEDEC Case Style 1.5KE package (DO-201AD), with cathode indicated by a color band on the body. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) in properly filtered systems |
| Clamping ratio (VC/VBR) ≈ 1.45 | Minimizes overvoltage overshoot during fast transients while maintaining low leakage at VWM |
| Response time < 1 ns | Engages before sensitive ICs (e.g., CAN transceivers, microcontrollers) experience damaging voltage excursions |
| AEC-Q101 qualified option available | HE3 suffix variants meet automotive-grade qualification for engine control and body electronics |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump (ISO 16750-2) and jump-start transients. IC Role / Device Role / Timing Role: Primary shunt clamp placed upstream of DC-DC converter input to limit voltage to ≤16 V during 35 V/1 s load dump events. Use Value: Prevents permanent damage to LDO regulators and MCU power pins by clamping within 1 ns and dissipating up to 1500 W peak energy. |
Use Scenario: 4–20 mA current loop interface in factory automation PLC modules subjected to EFT bursts and cable coupling noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed across loop terminals to suppress ±2 kV EFT (IEC 61000-4-4) without disrupting analog accuracy. Use Value: Maintains <10 µA leakage at 8.55 V, ensuring full 4–20 mA span integrity while clamping transients to 14.5 V. |
| Telecom DC Power Feeds | Consumer Power Adapter Output Protection |
Use Scenario: –48 V DC distribution in remote radio units where lightning-induced surges propagate via outdoor cabling. IC Role / Device Role / Timing Role: Paired with series impedance to form low-pass filter; absorbs common-mode surges before they reach PoE controller ICs. Use Value: Withstands 10.3 A peak current at 14.5 V clamping, enabling compliance with Telcordia GR-1089-CORE Level 3 surge requirements. |
Use Scenario: 5 V USB output stage of wall adapters vulnerable to user-induced plug/unplug transients and capacitor discharge spikes. IC Role / Device Role / Timing Role: Final-stage clamp between VBUS and GND to protect connected devices from >15 V excursions during hot-plug events. Use Value: Delivers 1500 W surge capability in compact DO-201AD package, eliminating need for larger MOVs or secondary protection ICs. |
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 | DO-214AA package; 1000 W PPPM; 17.0 V VC @ 58.8 A; 1.0 V higher VWM (9.0 V) | Lower clamping voltage headroom; better suited for space-constrained PCB layouts requiring SMT mounting | Select SMBJ10A when board area is limited and 1000 W surge rating suffices for target immunity level. |
| 1.5KE10CA | Bidirectional variant; same VBR range (9.5–10.5 V) but symmetrical clamping; 14.5 V VC in both polarities | Required for AC-coupled or floating signal lines (e.g., RS-485, audio) where polarity reversal occurs | Choose 1.5KE10CA only if bidirectional protection is mandated by signal architecture - not a drop-in replacement for 1.5KE10A-E3/51. |
Compared with SMBJ10A, 1.5KE10A-E3/51 offers 50 % higher surge power and tighter clamping, but requires axial through-hole assembly; versus 1.5KE10CA, it provides superior unidirectional leakage control and lower forward voltage, making it preferred for DC rail protection where polarity is fixed.
Availability
1.5KE10A-E3/51 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, telecom DC feeds, and consumer adapter outputs requiring stable component supply with RoHS-compliant, commercial-grade TVS protection.
Supply support for 1.5KE10A-E3/51 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 ruggedized performance.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure due to voltage surges must be eliminated.
FAQ
What is the maximum clamping voltage of the 1.5KE10A-E3/51 under a 10/1000 µs surge?
The 1.5KE10A-E3/51 clamps to a maximum of 14.5 V when subjected to its rated peak pulse current of 10.3 A using the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper bound of voltage seen by downstream circuitry during worst-case transient events. The 1.5KE10A-E3/51 achieves this clamping performance while maintaining low leakage and stable breakdown characteristics across its operating temperature range.
Is the 1.5KE10A-E3/51 suitable for automotive applications?
The 1.5KE10A-E3/51 is rated for operation from –55 °C to +175 °C and meets commercial-grade specifications; however, the AEC-Q101 qualified version is designated as 1.5KE10AHE3_B. For automotive under-hood or powertrain applications requiring qualification, engineers must specify the HE3 suffix variant. The 1.5KE10A-E3/51 itself is appropriate for non-safety-critical interior modules or aftermarket systems where full AEC-Q101 compliance is not mandated.
How does the 1.5KE10A-E3/51 differ from the bidirectional 1.5KE10CA?
The 1.5KE10A-E3/51 is unidirectional with cathode marking and conducts only in reverse breakdown, while the 1.5KE10CA is bidirectional with no polarity marking and clamps symmetrically in both directions. Their VBR and VC values are identical per polarity, but 1.5KE10A-E3/51 exhibits lower reverse leakage at VWM and supports forward conduction - making it ideal for DC rail protection. The 1.5KE10CA is required only for AC or floating signal paths.
What is the thermal resistance of the 1.5KE10A-E3/51, and how does it affect layout?
The 1.5KE10A-E3/51 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15.4 °C/W. This means that for sustained or repetitive surge events, PCB copper pour connected to both leads significantly improves heat dissipation. Layouts should avoid narrow traces and maximize thermal pad area - especially important when operating near the 6.5 W steady-state power limit at elevated ambient temperatures.
Can the 1.5KE10A-E3/51 be used in parallel to increase surge current handling?
Yes, multiple 1.5KE10A-E3/51 devices can be paralleled to distribute surge current, but matching VBR (9.5–10.5 V) is essential to ensure balanced current sharing. Vishay recommends using devices from the same manufacturing lot and verifying clamping uniformity with pulse testing. Derating total PPPM by 15–20 % is advised due to minor parameter spread; the 1.5KE10A-E3/51 is not internally matched for forced current sharing like some specialized arrays.
1.5KE10A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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-E3/51 FAQ
1.How can I place an order for 1.5KE10A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10A-E3/51 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-E3/51 reliable?
The price and inventory of 1.5KE10A-E3/51 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-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE10A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10A-E3/51?
1.5KE10A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10A-E3/51 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-E3/51?
For technical support, including 1.5KE10A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10A-E3/51 requirements.
6.How does Aetrix verify that 1.5KE10A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10A-E3/51 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-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE10A-E3/51?
All 1.5KE10A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10A-E3/51, 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-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE10A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10A-E3/51 Tags
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