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Vishay General Semiconductor - Diodes Division 1.5KE10CAHE3/51
- Part No.:
- 1.5KE10CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10CAHE3/51.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,429
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Product details
Overview
1.5KE10CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 10 V standoff voltage (VWM), 14.5 V clamping voltage at 103 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability - deployed to protect MOSFETs, sensor interfaces, and microcontroller I/O in industrial and automotive ECUs.
For engineers reviewing the 1.5KE10CAHE3/51 datasheet, 1.5KE10CAHE3/51 pinout, 1.5KE10CAHE3/51 application, or 1.5KE10CAHE3/51 equivalent, key selection criteria include its bi-directional clamping behavior, 175 °C maximum junction temperature, RoHS-compliant HE3 suffix (JESD 201 Class 2 whisker test), and compatibility with 8.3 ms surge waveforms per JESD 22-B102 solderability standards.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity - critical for AC-coupled lines, differential buses, and ungrounded sensor inputs. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<10 µA at 8.55 V).
The device uses a case style 1.5KE DO-201AD package with matte tin-plated leads, enabling high-reliability soldering per J-STD-002 and supporting thermal dissipation up to 6.5 W on an infinite heatsink at 75 °C. Its 15.4 °C/W junction-to-lead thermal resistance supports rapid heat transfer during repetitive surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 8.55 V - Maximum continuous reverse voltage before conduction; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 9.50–10.5 V at 1 mA - Tight tolerance ensures predictable turn-on timing for transient suppression. |
| VC (Clamping Voltage) | 14.5 V at 103 A (10/1000 µs) - Limits downstream voltage stress during worst-case surge events. |
| PPPM | 1500 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure. |
| ID (Leakage Current) | <10 µA at VWM - Minimizes standby power loss and avoids false triggering in low-power circuits. |
| TJ max. | +175 °C - Enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress-test requirements including HTRB, HTGB, and TCT. |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body meeting UL 94 V-0 flammability rating. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Transient conduction path | No polarity marking; symmetrical terminals conduct equally in either direction during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, with minimal parameter drift in harsh environments. |
| 1500 W peak pulse power (10/1000 µs) | Handles high-energy surges such as load dump (ISO 16750-2) and ESD-induced transients without degradation. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive use including temperature cycling, humidity bias, and high-temperature reverse bias testing. |
| Low incremental surge resistance | Enables tight clamping (VC − VBR = 4.0–5.0 V), minimizing voltage overshoot across protected ICs. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term reliability in sealed connectors and PCBAs. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and power supply inputs in engine control units exposed to ISO 7637-2 Pulse 5a load dump transients. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between power rail and ground, responding within <1 ns to limit voltage excursion. Use Value: Clamps 103 A surge to ≤14.5 V, preventing latch-up or gate oxide damage in 5 V/12 V automotive ICs. |
Use Scenario: Shielding 4–20 mA current loop receivers and analog front-ends in PLC I/O modules from field-induced lightning surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on differential signal pair, operating symmetrically without polarity constraints. Use Value: Maintains signal integrity by limiting common-mode transients to <14.5 V while adding <1 pF capacitance. |
| Consumer Device USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB 2.0 data lines and VBUS in portable medical monitors against ESD and cable discharge events. IC Role / Device Role / Timing Role: Bi-directional TVS placed across D+/D− and VBUS/GND, absorbing ±15 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response prevents data corruption and PHY latch-up during fast-rising ESD pulses. |
Use Scenario: Front-end protection on POTS line interface cards subjected to induced surges per ITU-T K.20/K.44. IC Role / Device Role / Timing Role: First-stage surge limiter on tip/ring lines, coordinated with gas discharge tubes for multi-level protection. Use Value: Withstands 10/1000 µs surges up to 1500 W, reducing secondary protector stress and extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC (17.0 V @ 38.8 A) | Better suited for space-constrained PCBs but less robust for high-energy automotive load dump. | Select when board area is critical and surge energy is limited to IEC 61000-4-5 Level 3 (0.5 J). |
| 1.5KE10CA | Same electrical specs but commercial-grade (E3 suffix only); lacks AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. | Acceptable for non-automotive industrial or consumer use where extended temperature cycling is not required. | Choose for cost-sensitive designs where automotive qualification and long-term whisker immunity are unnecessary. |
Compared with SMBJ10CA and 1.5KE10CA, the 1.5KE10CAHE3/51 uniquely combines AEC-Q101 qualification, 1500 W surge capability, and DO-201AD mechanical robustness - making it the preferred choice for automotive power domain protection where reliability under thermal and mechanical stress is mandatory.
Availability
1.5KE10CAHE3/51 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom line card surge suppression requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for 1.5KE10CAHE3/51 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - emphasizing rugged packaging, AEC-Q101 compliance, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of the 1.5KE10CAHE3/51 under a 10/1000 µs surge?
The 1.5KE10CAHE3/51 clamps to a maximum of 14.5 V when subjected to a 103 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standard test conditions and reflects the actual voltage seen by downstream circuitry during worst-case transient events - critical for ensuring compatibility with 5 V or 12 V logic rails.
Is the 1.5KE10CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE10CAHE3/51 is AEC-Q101 qualified and carries the HE3 suffix, confirming compliance with automotive stress tests including high-temperature reverse bias, temperature cycling, and humidity bias. Its 175 °C maximum junction temperature and JESD 201 Class 2 whisker resistance make it appropriate for under-hood and chassis-mounted automotive modules.
How does the bi-directional nature of the 1.5KE10CAHE3/51 affect its placement in circuit design?
The 1.5KE10CAHE3/51 has no polarity marking and conducts identically in both directions, allowing placement across any two nodes requiring symmetrical overvoltage protection - such as AC signal lines, differential buses (e.g., RS-485), or ungrounded power domains. This eliminates orientation concerns during assembly and simplifies layout for bidirectional surge paths.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE10CAHE3/51?
The 1.5KE10CAHE3/51 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W. This low value enables efficient heat transfer from the silicon die to the PCB copper via the axial leads, supporting reliable operation during repetitive surge events - especially important in applications with duty cycles exceeding 0.01 %.
Does the 1.5KE10CAHE3/51 meet RoHS and REACH requirements?
Yes, the 1.5KE10CAHE3/51 is RoHS compliant (per Directive 2011/65/EU) and meets Vishay's material compliance standards as defined in document 99912. The HE3 suffix confirms both RoHS compliance and AEC-Q101 qualification, with lead-free matte tin plating and halogen-free molding compound.
1.5KE10CAHE3/51 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE10CAHE3/51 FAQ
1.How can I place an order for 1.5KE10CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10CAHE3/51 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 1.5KE10CAHE3/51 reliable?
The price and inventory of 1.5KE10CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE10CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10CAHE3/51?
1.5KE10CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10CAHE3/51 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 1.5KE10CAHE3/51?
For technical support, including 1.5KE10CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE10CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10CAHE3/51 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 1.5KE10CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE10CAHE3/51?
All 1.5KE10CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10CAHE3/51, 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 1.5KE10CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE10CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10CAHE3/51 Tags
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