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Vishay General Semiconductor - Diodes Division 1.5KE100CA-E3/51
- Part No.:
- 1.5KE100CA-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100CA-E3/51.pdf
- Description:
- TVS DIODE 85.5VWM 137VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,835
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Product details
Overview
1.5KE100CA-E3/51 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 100 V breakdown voltage (VBR = 95–105 V), 137 V maximum clamping voltage at 10.9 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching spikes in automotive and industrial systems.
For engineers reviewing the 1.5KE100CA-E3/51 datasheet, 1.5KE100CA-E3/51 pinout, 1.5KE100CA-E3/51 application, or 1.5KE100CA-E3/51 equivalent, this device delivers verified bidirectional clamping performance, RoHS-compliant matte tin-plated leads, and UL 94 V-0 molded epoxy packaging - critical for ESD/EMI-hardened designs requiring stable transient suppression without polarity constraints.
Technical Context
This TVS diode operates symmetrically in both directions due to its CA suffix designation, enabling protection of AC-coupled or floating signal paths without cathode/anode orientation concerns. Its glass-passivated junction ensures low incremental surge resistance and sub-nanosecond response time (<1 ns), while thermal resistance (RθJL = 15.4 °C/W) supports reliable energy dissipation during repetitive 0.01% duty cycle surges.
The device complies with JEDEC standards for transient suppression and meets JESD 201 Class 1A whisker testing. With a 175 °C maximum junction temperature and -55 °C to +175 °C operating range, it sustains robust operation in under-hood automotive environments and industrial control cabinets where ambient thermal stress is significant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 95 V / 105 V - precise bidirectional breakdown threshold ensuring consistent clamping onset across polarity |
| VC @ IPPM | 137 V - maximum clamped voltage at 10.9 A pulse, defining worst-case overvoltage seen by protected circuitry |
| PPPM | 1500 W - peak surge power handling capability with 10/1000 µs waveform, sufficient for IEC 61000-4-5 Level 4 compliance |
| VWM | 85.5 V - maximum working voltage before leakage exceeds 1 µA, setting safe DC/AC operating margin |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage at stand-off voltage, minimizing standby power loss in battery-powered systems |
| TJ max. | +175 °C - extended junction temperature rating enabling use in high-ambient environments without derating penalties |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, compatible with through-hole PCB assembly and manual rework |
Pinout & Package
1.5KE100CA-E3/51 uses a two-terminal axial-leaded DO-201AD (Case Style 1.5KE) package. As a bidirectional TVS, it has no polarity marking; both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals conduct identically during positive or negative voltage excursions exceeding VBR, eliminating orientation dependency in layout |
| Leads (matte tin plated) | PCB interface and thermal path | Solderable per J-STD-002/JESD 22-B102; provides primary heat conduction from junction to board copper or heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under repeated surge stress without parameter drift |
| 1500 W peak pulse power (10/1000 µs) | Supports single-event lightning surge protection per IEC 61000-4-5 up to 4 kV open-circuit voltage with 2 Ω source impedance |
| Sub-nanosecond response time | Clamps transients before sensitive downstream components experience damaging overvoltage - critical for protecting fast-switching MOSFET gates |
| UL 94 V-0 epoxy molding | Provides flame-retardant mechanical encapsulation required for industrial and automotive safety certifications |
| JESD 201 Class 1A whisker resistance | Ensures solder joint integrity over temperature cycling and long-term storage, reducing field failure risk in harsh environments |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) and body control modules (BCMs) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed upstream of DC-DC converters and microcontrollers to limit rail voltage to ≤137 V during 100 ms load dump events. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic supplies by clamping transients within 1 ns - faster than TVS alternatives like MOVs or polymer-based suppressors. |
Use Scenario: Shielding analog inputs of pressure, temperature, and position sensors in PLC I/O modules from EFT and surge coupling on 4–20 mA or 0–10 V signal lines. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF typical) bidirectional clamp shunting induced transients directly at connector entry point. Use Value: Maintains signal fidelity below 1 MHz while suppressing >1 kV fast transients - avoids distortion or offset errors common with higher-capacitance protection schemes. |
| Telecom Line Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHYs and PoE injectors against lightning-induced surges on outdoor cabling in security camera systems and base stations. IC Role / Device Role / Timing Role: Primary front-end TVS on RJ45 magnetics secondary side, coordinated with gas discharge tubes (GDTs) for staged protection. Use Value: Delivers <137 V clamping at 10.9 A while surviving repeated 10/1000 µs surges - enables compliance with ITU-T K.21 Basic Protection Level. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools connected to microcontroller-based motor drivers. IC Role / Device Role / Timing Role: Across-the-rail clamp on H-bridge supply pins, absorbing inductive kickback energy during PWM switching transitions. Use Value: Handles 1500 W peak pulses without degradation, extending MOSFET lifetime and eliminating need for snubber RC networks in cost-sensitive designs. |
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 (SMB) surface-mount package; lower 600 W PPPM; VC = 165 V @ 6.1 A | Not suitable for 1500 W surge requirements; limited to PCB space-constrained, lower-energy applications | Select only when board real estate prohibits axial-leaded devices and surge energy is ≤600 W |
| 1.5KE100A | Unidirectional version; same VBR/VC/PPPM; cathode band marking required for correct orientation | Requires polarity-aware layout; unsuitable for AC or floating differential signals | Choose only for DC-biased unidirectional rails where polarity is fixed and known |
Compared with SMBJ100CA and 1.5KE100A, the 1.5KE100CA-E3/51 uniquely combines bidirectional symmetry, 1500 W surge capacity, and through-hole mechanical robustness - making it the preferred choice for high-reliability, high-energy, polarity-agnostic protection in automotive and industrial power domains.
Availability
1.5KE100CA-E3/51 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom infrastructure equipment, and consumer appliance motor drives requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE100CA-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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-power transient suppression in harsh environments, emphasizing rugged packaging, tight VBR tolerance, and repeatable clamping performance under thermal and electrical stress.
FAQ
What is the breakdown voltage tolerance for 1.5KE100CA-E3/51?
The 1.5KE100CA-E3/51 has a guaranteed breakdown voltage range of 95 V to 105 V at 1.0 mA test current, corresponding to a ±5% tolerance around the nominal 100 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature extremes, critical for designs requiring precise overvoltage thresholds.
Is 1.5KE100CA-E3/51 RoHS compliant and lead-free?
Yes, the 1.5KE100CA-E3/51 carries the "E3" suffix, indicating full RoHS compliance per Directive 2011/65/EU and lead-free matte tin plating on leads. It meets JESD 201 Class 1A whisker testing and is rated for solder dip at 275 °C for up to 10 seconds - confirming compatibility with standard lead-free reflow and wave soldering processes.
Can 1.5KE100CA-E3/51 be used in place of a unidirectional TVS like 1.5KE100A?
No - the 1.5KE100CA-E3/51 is strictly bidirectional and lacks polarity markings, while 1.5KE100A is unidirectional with a cathode band. Substituting them requires verifying circuit topology: 1.5KE100CA-E3/51 is mandatory for AC-coupled, floating, or differential signal lines; 1.5KE100A applies only to DC-biased unidirectional rails where polarity is fixed and known.
What is the maximum clamping voltage of 1.5KE100CA-E3/51 under surge conditions?
The 1.5KE100CA-E3/51 clamps to a maximum of 137 V when subjected to its rated 10.9 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured per JEDEC standards and defines the absolute upper voltage limit imposed on protected circuitry during worst-case transient events.
Does 1.5KE100CA-E3/51 meet AEC-Q101 qualification?
No - the 1.5KE100CA-E3/51 is a commercial-grade part. AEC-Q101 qualified versions carry the "HE3" suffix (e.g., 1.5KE100CAHE3_B). The "E3" suffix denotes RoHS compliance and JESD 201 Class 1A whisker resistance but does not imply automotive qualification. For automotive applications, specify the HE3 variant and confirm revision code "B" or later.
1.5KE100CA-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE100CA-E3/51 FAQ
1.How can I place an order for 1.5KE100CA-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100CA-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 1.5KE100CA-E3/51 reliable?
The price and inventory of 1.5KE100CA-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 1.5KE100CA-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE100CA-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100CA-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100CA-E3/51?
1.5KE100CA-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100CA-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 1.5KE100CA-E3/51?
For technical support, including 1.5KE100CA-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100CA-E3/51 requirements.
6.How does Aetrix verify that 1.5KE100CA-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE100CA-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 1.5KE100CA-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE100CA-E3/51?
All 1.5KE100CA-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100CA-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 1.5KE100CA-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE100CA-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100CA-E3/51 Tags
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Diodes Incorporated
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