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Vishay General Semiconductor - Diodes Division 1.5KE10CA-E3/51
- Part No.:
- 1.5KE10CA-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10CA-E3/51.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,254
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Product details
Overview
1.5KE10CA-E3/51 from Vishay General Semiconductor is a bidirectional 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 (VC) at 103 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE10CA-E3/51 datasheet, 1.5KE10CA-E3/51 pinout, 1.5KE10CA-E3/51 application, or 1.5KE10CA-E3/51 equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, JEDEC 1.5KE package details, thermal derating curves, and direct alternatives for ESD/lightning protection design in automotive, industrial, and telecom systems.
Technical Context
This device uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional structure enables symmetrical clamping in AC-coupled or floating lines without polarity concerns, eliminating the need for orientation-aware PCB layout.
It complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) immunity requirements when applied per layout guidelines. The 1.5KE10CA-E3/51 is rated for 0.01% duty cycle repetitive operation and supports up to 200 A unidirectional surge current - though its bidirectional variant does not specify IFSM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 9.5 V / 10.5 V at 1 mA - Tight 10% breakdown tolerance ensures predictable turn-on across production lots. |
| VC @ IPPM | 14.5 V at 103 A - Clamping voltage under 10/1000 µs surge; limits downstream component stress during transients. |
| PPPM | 1500 W - Peak pulse power handling capability; sustains high-energy surges without failure. |
| IPPM | 103 A - Maximum non-repetitive peak pulse current; determines minimum series impedance required for system-level protection. |
| TJ range | –55 °C to +175 °C - Wide junction temperature range enables use in under-hood automotive and industrial environments. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; informs heatsinking needs for sustained power dissipation. |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body meeting UL 94 V-0. Matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards. Bidirectional variants like 1.5KE10CA-E3/51 have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No cathode band; terminals are functionally identical - connects across protected line and return (e.g., RS-485 A/B, CAN H/L, AC input). |
| Lead 1 / Lead 2 | Thermal and mechanical interface | Leads serve as primary heat path (RθJL = 15.4 °C/W); 0.375" (9.5 mm) lead length used in thermal testing per Fig. 5. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, low-leakage performance (ID ≤ 10 µA at VWM) and long-term reliability under humidity and bias stress. |
| 1500 W 10/1000 µs rating | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-earth) surge protection without external current limiting. |
| Sub-nanosecond response | Clamps transients within <1 ns - faster than MOVs or polymer-based protectors - preserving signal integrity in high-speed interfaces. |
| AEC-Q101 qualified option | 1.5KE10CAHE3_B variant available for automotive applications requiring qualification per stress test standard. |
| RoHS-compliant (E3 suffix) | Meets JESD 201 Class 1A whisker resistance; suitable for lead-free reflow and wave soldering up to 275 °C for 10 s. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protects gate drivers and microcontroller I/O from voltage spikes caused by relay coil de-energization or contactor switching in PLC output stages. IC Role / Device Role / Timing Role: Bidirectional TVS placed across isolated DC bus or digital control lines to clamp both positive and negative transients. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic inputs while maintaining signal fidelity due to low capacitance and sub-ns response. |
Use Scenario: Shields LIN bus transceivers and sensor supply rails from load dump and jump-start events in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN data line and ground to suppress coupled transients without affecting 19.2 kbps signaling. Use Value: Enables compliance with ISO 7637-2 Pulse 1/2a/3a and ISO 16750-2 load-dump immunity without adding series resistance or filtering delay. |
| Telecom Power Feeds | Consumer Audio Amplifier Inputs |
Use Scenario: Safeguards PoE-powered Ethernet switch ports and remote PHY circuits against induced surges on twisted-pair cabling in outdoor deployments. IC Role / Device Role / Timing Role: Bidirectional clamping device installed differential-mode across pairs (e.g., between tip/ring of POTS line or data pair). Use Value: Withstands 1500 W surges while maintaining <1 pF junction capacitance - critical for preserving 100BASE-TX signal integrity up to 100 MHz. |
Use Scenario: Guards analog input jacks and op-amp front-ends in home theater receivers against ESD from user-contacted RCA or 3.5 mm connectors. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between input signal line and chassis ground to shunt human-body-model (HBM) discharges. Use Value: Clamps 8 kV HBM ESD events to <15 V within 1 ns, preventing op-amp saturation or CMOS input damage without audible pop or distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower peak power (600 W), smaller SMB package (vs. DO-201AD), higher VC (17 V @ 34.6 A). | Better suited for space-constrained PCBs where 1500 W is not required; less effective for IEC 61000-4-5 Level 4. | Select SMBJ10CA only if board area is critical and surge energy remains ≤600 W; verify thermal relief for SMB footprint. |
| 1.5SMC10CA | Same 1500 W rating and DO-214AB package; slightly higher VBR (9.4–10.4 V), identical VC (14.5 V). | Surface-mount alternative with comparable clamping but different thermal profile (RθJA ≈ 50 °C/W vs. 75 °C/W). | Choose 1.5SMC10CA for automated SMT assembly; confirm pad thermal vias match DO-214AB thermal requirements. |
Compared with 1.5KE10CA-E3/51, SMBJ10CA trades peak power and thermal mass for compactness, while 1.5SMC10CA retains full 1500 W capability in an SMT form factor - enabling drop-in replacement only with revised layout and thermal validation.
Availability
1.5KE10CA-E3/51 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and telecom power feed applications requiring stable component supply, RoHS compliance, and AEC-Q101-qualified traceability.
Supply support for 1.5KE10CA-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, power handling, and industry-standard qualification.
The 1.5KE family targets high-energy transient suppression in harsh environments, delivering standardized 1500 W surge capability in axial-leaded packages for legacy and new industrial, automotive, and telecom designs.
FAQ
What is the clamping voltage of the 1.5KE10CA-E3/51 under a 10/1000 µs surge?
The 1.5KE10CA-E3/51 clamps to a maximum of 14.5 V when subjected to its rated peak pulse current of 103 A using a 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet 88301 and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. The 1.5KE10CA-E3/51 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE10CA-E3/51 suitable for automotive applications?
The 1.5KE10CA-E3/51 is RoHS-compliant and commercial-grade; however, Vishay offers the AEC-Q101-qualified variant 1.5KE10CAHE3_B for automotive use. While the 1.5KE10CA-E3/51 meets key electrical specs for transients, it lacks formal qualification testing for temperature cycling, humidity, and vibration per AEC-Q101. For production automotive ECUs, specify the HE3_B suffix version instead of the 1.5KE10CA-E3/51.
How does the bidirectional configuration of the 1.5KE10CA-E3/51 affect PCB layout?
The 1.5KE10CA-E3/51 has no polarity marking and functions identically in either orientation, simplifying layout for AC-coupled or floating signal lines such as RS-485, CAN, or telephone interfaces. Unlike unidirectional TVS diodes, it eliminates the risk of incorrect placement during assembly and avoids the need for series blocking capacitors. Its symmetric structure ensures equal clamping for positive and negative transients without additional components.
What is the maximum junction temperature rating for the 1.5KE10CA-E3/51?
The 1.5KE10CA-E3/51 has a maximum junction temperature (TJ) of +175 °C and a storage temperature range of –55 °C to +175 °C. This wide rating supports operation in under-hood automotive locations, industrial enclosures, and power supply environments where ambient temperatures exceed 100 °C. Derating of peak pulse power begins above TA = 25 °C per Figure 2 in the datasheet.
Does the 1.5KE10CA-E3/51 require a heatsink for continuous operation?
The 1.5KE10CA-E3/51 is rated for 6.5 W power dissipation on an infinite heatsink at TL = 75 °C, but its typical RθJA of 75 °C/W means it relies primarily on lead conduction rather than PCB copper for thermal management. For pulsed transient suppression (its primary use case), no heatsink is needed. However, if used in linear-regulator-style crowbar applications with sustained current, thermal vias and thick copper pours on both leads are recommended to maintain TJ < 175 °C.
1.5KE10CA-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:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE10CA-E3/51 FAQ
1.How can I place an order for 1.5KE10CA-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10CA-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 1.5KE10CA-E3/51 reliable?
The price and inventory of 1.5KE10CA-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 1.5KE10CA-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE10CA-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10CA-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10CA-E3/51?
1.5KE10CA-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10CA-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 1.5KE10CA-E3/51?
For technical support, including 1.5KE10CA-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10CA-E3/51 requirements.
6.How does Aetrix verify that 1.5KE10CA-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE10CA-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 1.5KE10CA-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE10CA-E3/51?
All 1.5KE10CA-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10CA-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 1.5KE10CA-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE10CA-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10CA-E3/51 Tags
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