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Vishay General Semiconductor - Diodes Division 1.5KE100CAHE3/51
- Part No.:
- 1.5KE100CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100CAHE3/51.pdf
- Description:
- TVS DIODE 85.5VWM 137VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,956
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Product details
Overview
1.5KE100CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 100 V standoff voltage (VWM), 137 V maximum clamping voltage (VC) at 10.9 A peak pulse current, 1500 W peak pulse power (10/1000 µs), AEC-Q101 qualification, and RoHS-compliant HE3 packaging - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE100CAHE3/51 datasheet, 1.5KE100CAHE3/51 pinout, 1.5KE100CAHE3/51 application, or 1.5KE100CAHE3/51 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under transient stress, and direct-fit alternatives for ESD/lightning surge protection in harsh environments.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified between 95.0 V and 105 V at 1 mA test current, and clamps transients to ≤137 V at 10.9 A (10/1000 µs waveform). Its glass-passivated junction enables sub-nanosecond response time and low incremental surge resistance.
Thermal design is constrained by RθJA = 75 °C/W and RθJL = 15.4 °C/W, supporting operation from –55 °C to +175 °C junction temperature. The device sustains 6.5 W steady-state power dissipation on an infinite heatsink at TL = 75 °C and meets JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 95.0–105 V at 1 mA - Confirmed bi-directional avalanche threshold; ensures symmetrical clamping in AC-coupled or floating lines. |
| VC (Clamping Voltage) | 137 V at 10.9 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; critical for IC survival margin. |
| PPPM (Peak Pulse Power) | 1500 W - Sustained for 1 ms per IEC 61000-4-5; enables protection against lightning-induced surges on 24 V/48 V industrial buses. |
| TJ max. | +175 °C - Enables use in under-hood automotive modules and high-ambient industrial enclosures without thermal shutdown. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance; required for ECUs and ADAS sensors. |
| Package | Case Style 1.5KE - Axial-leaded DO-201AD package (0.375" lead length); compatible with through-hole wave soldering and manual rework. |
Pinout & Package
1.5KE100CAHE3/51 uses a bi-directional axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking - both terminals are electrically identical and interchangeable. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No cathode band; terminals function identically in either direction - simplifies layout for AC or floating signal lines. |
| Lead 1 / Lead 2 | Current path to junction | Leads conduct surge current bidirectionally into the silicon die; thermal path optimized via RθJL = 15.4 °C/W to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under humidity and thermal cycling stress. |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) for industrial control inputs. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and infotainment power rails. |
| Low clamping ratio (VC/VBR ≈ 1.34) | Minimizes let-through energy to downstream MOSFETs or microcontrollers during fast transients. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - required for Tier 1 automotive sourcing. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ESD events in vehicle cabins. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: Clamps 10/1000 µs surges to ≤137 V while maintaining <1 µA leakage at 85.5 V - preserving signal integrity and ADC accuracy. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to motor switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side signal lines, coordinated with series impedance and filtering. Use Value: Withstands repetitive 1500 W pulses at 0.01 % duty cycle - enabling reliable operation in factory automation with frequent inductive switching. |
| Telecom Line Card Protection | Power Supply DC Bus Clamp |
Use Scenario: Secondary surge protection on Ethernet PHY power rails and auxiliary bias supplies in outdoor telecom base stations. IC Role / Device Role / Timing Role: Fast-response clamp supplementing GDT or MOV primary protection to limit residual voltage to IC-safe levels. Use Value: Sub-nanosecond response ensures clamping occurs before sensitive PHY ICs experience overstress - critical for IEEE 802.3 compliance. |
Use Scenario: Overvoltage suppression on 24 V or 48 V DC distribution buses feeding multiple subsystems in rail or energy storage systems. IC Role / Device Role / Timing Role: Parallel-connected TVS providing fail-safe crowbar action during input capacitor failure or regulator fault. Use Value: 175 °C max junction temperature allows mounting near hot power components without derating - reducing board area vs. lower-TJ alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | DO-214AA package (SMB), 100 W peak power, lower IPPM (12.3 A), higher VC (165 V) | Suitable for space-constrained PCBs but lacks AEC-Q101 qualification and 1500 W capability | Select when footprint size is critical and surge threat level is ≤1 kV (IEC 61000-4-5 Level 2). |
| 1.5SMC100CA | SMA package (DO-214AB), same 1500 W rating, VC = 137 V, but only commercial-grade (no AEC-Q101) | Acceptable for industrial/commercial use where automotive qualification is not mandated | Choose for cost-sensitive non-automotive designs requiring identical clamping performance and power rating. |
Compared with 1.5KE100CAHE3/51, SMBJ100CA trades surge robustness for compactness, while 1.5SMC100CA matches power and clamping but omits automotive qualification - making 1.5KE100CAHE3/51 the sole option meeting AEC-Q101 + 1500 W + DO-201AD mechanical durability.
Availability
1.5KE100CAHE3/51 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial I/O module design, and telecom power rail stabilization requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE100CAHE3/51 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, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive-grade validation.
The 1.5KE family was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure is not acceptable.
FAQ
What is the clamping voltage of the 1.5KE100CAHE3/51 under a 10/1000 µs surge?
The 1.5KE100CAHE3/51 clamps to a maximum of 137 V at 10.9 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5KE100CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE100CAHE3/51 carries AEC-Q101 qualification (documented in Vishay's 88301 datasheet revision 11-Oct-16), confirming its suitability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. The HE3 suffix explicitly denotes AEC-Q101 compliance and JESD 201 Class 2 whisker resistance.
How does the bi-directional nature of the 1.5KE100CAHE3/51 affect its placement in circuit design?
The 1.5KE100CAHE3/51 has no polarity marking and functions identically in both directions - eliminating orientation concerns during placement. This makes it ideal for protecting AC-coupled signals, floating grounds, or differential buses like RS-485 or CAN, where voltage transients may occur with either polarity relative to reference.
What is the maximum operating temperature for the 1.5KE100CAHE3/51?
The 1.5KE100CAHE3/51 supports a junction temperature range of –55 °C to +175 °C. This wide range enables deployment in under-hood automotive locations, industrial motor drives, and outdoor telecom equipment where ambient temperatures exceed 125 °C - provided PCB thermal design maintains TJ ≤ 175 °C under worst-case power dissipation.
Does the 1.5KE100CAHE3/51 require a heatsink for continuous operation?
No external heatsink is required for transient suppression, as the device handles energy in short pulses. However, for sustained power dissipation, its 6.5 W rating applies only with infinite heatsinking at TL = 75 °C. In practice, PCB copper area and lead thermal conduction provide sufficient heat spreading for typical surge duty cycles (0.01 %).
1.5KE100CAHE3/51 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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 10.9A
- 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
1.5KE100CAHE3/51 FAQ
1.How can I place an order for 1.5KE100CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100CAHE3/51 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 1.5KE100CAHE3/51 reliable?
The price and inventory of 1.5KE100CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100CAHE3/51 is usually 5 days.
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1.5KE100CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100CAHE3/51 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 1.5KE100CAHE3/51?
For technical support, including 1.5KE100CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE100CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100CAHE3/51 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 1.5KE100CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE100CAHE3/51?
All 1.5KE100CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100CAHE3/51, 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 1.5KE100CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE100CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100CAHE3/51 Tags
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