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Taiwan Semiconductor Corporation 1V5KE120CA
- Part No.:
- 1V5KE120CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE120CA.pdf
- Description:
- TVS DIODE 102VWM 165VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:7,422
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Product details
Overview
1V5KE120CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge clamping in power and signal lines. It features a 114–126 V breakdown voltage (VBR), 102 V reverse stand-off voltage (VRWM), 1500 W peak pulse power (1 ms), 9.1 A peak pulse current (IPPM), and 165 V clamping voltage (VC) - used to protect industrial I/O, AC/DC power inputs, and telecom line interfaces.
For engineers reviewing the 1V5KE120CA datasheet, 1V5KE120CA pinout, 1V5KE120CA application, or 1V5KE120CA equivalent, key selection criteria include verified bipolar clamping performance, DO-201 mechanical compatibility, low leakage (<5 µA at 102 V), fast response time (<1.0 ps), and compliance with IEC 61000-4-2/4-4/4-5 ESD/EFT/surge immunity standards.
Technical Context
The 1V5KE120CA operates as a symmetrical avalanche diode, conducting in both directions when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping under repetitive 10/1000 µs surges.
It is rated for junction temperatures from –55°C to +175°C and supports unidirectional forward surge currents up to 200 A (8.3 ms half-sine). The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for reliable long-term operation in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 114 V / 126 V - defines guaranteed avalanche conduction onset range at 1 mA test current |
| VRWM | 102 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 165 V - clamped voltage during 9.1 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak surge power handling capability at 1 ms pulse width |
| IR @ VRWM | <5 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | +175 °C - enables use in high-temperature industrial enclosures and power supply designs |
Pinout & Package
Package: DO-201 axial lead package with cathode band marking for polarity identification; RoHS-compliant, halogen-free molding compound; pure tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Current entry terminal in reverse-biased mode | Connects to protected line side; forms symmetrical clamping path with cathode |
| Cathode (lead with band) | Current exit terminal in reverse-biased mode | Typically tied to ground or common reference; completes low-impedance surge shunt path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, reducing parameter drift in field-deployed systems |
| 1500 W peak pulse power (1 ms) | Withstands IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., lightning-induced spikes) |
| Fast response time (<1.0 ps) | Activates before sensitive downstream ICs experience overvoltage stress |
| RoHS & halogen-free compliance | Meets IPC/JEDEC J-STD-020 and IEC 61249-2-21 for green manufacturing and end-of-life recycling |
Applications
| Industrial PLC Analog Input Protection | AC Mains Surge Suppression |
|---|---|
Use Scenario: Protecting 0–10 V or 4–20 mA analog input channels in programmable logic controllers from induced surges on long sensor cables. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, absorbing energy before it reaches precision ADC front-end. Use Value: Limits transient voltage to ≤165 V, preserving ±0.1% measurement accuracy and preventing latch-up in instrumentation amplifiers. | Use Scenario: Secondary-level surge protection on 120/230 VAC input lines of switch-mode power supplies and motor drives. IC Role / Device Role / Timing Role: Parallel-connected TVS across bridge rectifier output or AC line terminals to clamp differential-mode surges. Use Value: Handles 1500 W pulses without thermal runaway, extending capacitor and MOSFET lifetime under repeated lightning strike exposure. |
| Telecom Line Interface Protection | Automotive Body Control Module (BCM) Power Input |
Use Scenario: Safeguarding RS-485/RS-232 transceivers and PHYs in outdoor base stations against ESD and EFT events. IC Role / Device Role / Timing Role: Placed at connector interface to divert fast transients (IEC 61000-4-2 ±8 kV contact) away from communication ICs. Use Value: Sub-nanosecond response ensures clamping occurs before transceiver internal ESD diodes activate, avoiding cumulative damage. | Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers in BCMs from load dump and jump-start transients. IC Role / Device Role / Timing Role: Connected between battery rail and ground to clamp ISO 7637-2 Pulse 5a (75 V/400 ms) and Pulse 5b (110 V/100 ms) events. Use Value: Sustains 165 V clamping at 9.1 A without failure, maintaining system uptime during automotive electrical disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Lower PPPM (600 W), smaller SMB package (vs. DO-201), VRWM = 110 V, VC = 177 V | Better suited for space-constrained PCBs; less robust for high-energy surges | Select when board area is critical and surge threat level is IEC 61000-4-5 Level 3 (2 kV) |
| 1N6296A | Same manufacturer, same DO-201 package, but unidirectional; VRWM = 94 V, VC = 152 V | Requires external polarity-aware layout; not suitable for AC or bidirectional signal lines | Choose only for DC-only rails where ground-referenced unidirectional clamping suffices |
Compared with SMBJ110CA and 1N6296A, the 1V5KE120CA delivers higher surge energy handling in a through-hole package ideal for high-reliability industrial and automotive power inputs, while maintaining symmetrical protection without polarity constraints.
Availability
1V5KE120CA is available at Aetrix Electronics and suitable for industrial PLC analog inputs, AC mains surge suppression, telecom line interfaces, and automotive body control module power inputs requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE120CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and Zener diodes, with ISO 9001 and IATF 16949 certification.
The 1V5KE120CA belongs to TSC's 1V5KE series of high-power bidirectional TVS diodes, engineered specifically for industrial-grade surge immunity in power conversion, automation, and transportation systems.
FAQ
What is the breakdown voltage range of the 1V5KE120CA?
The 1V5KE120CA has a specified breakdown voltage (VBR) range of 114 V to 126 V at 1 mA test current, measured per JEDEC standard. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes, making the 1V5KE120CA suitable for designs requiring tight overvoltage protection margins in industrial power rails.
Is the 1V5KE120CA unidirectional or bidirectional?
The 1V5KE120CA is a bidirectional TVS diode, indicated by the "CA" suffix. It provides symmetrical clamping in both polarities, enabling use on AC lines, differential signal pairs, and floating power domains without polarity concerns. Unlike unidirectional variants such as 1N6296A, the 1V5KE120CA does not require orientation-specific placement on PCBs.
What is the clamping voltage of the 1V5KE120CA at its rated peak pulse current?
At its rated peak pulse current of 9.1 A (10/1000 µs waveform), the 1V5KE120CA clamps to a maximum of 165 V. This value is guaranteed across temperature and lifetime, and directly determines the maximum voltage stress imposed on downstream components during surge events - a critical parameter for validating system-level immunity to IEC 61000-4-5 testing.
Does the 1V5KE120CA meet RoHS and halogen-free requirements?
Yes, the 1V5KE120CA is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound contains no brominated flame retardants or chlorine-based additives, and its pure tin-plated leads satisfy J-STD-002 solderability requirements. These attributes support compliance with environmental directives in EU, China, and Japan markets.
What package type does the 1V5KE120CA use, and what are its mechanical highlights?
The 1V5KE120CA uses the DO-201 axial lead package, featuring UL 94V-0 flammability-rated epoxy, JESD201 Class 2 whisker-resistant plating, and a nominal weight of 0.090 g. Its standardized lead spacing and cathode band marking simplify automated assembly and field replacement, while the robust case withstands mechanical stress in high-vibration industrial environments.
1V5KE120CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 9.1A
- 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:
- DO-201AD
1V5KE120CA FAQ
1.How can I place an order for 1V5KE120CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE120CA 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 1V5KE120CA reliable?
The price and inventory of 1V5KE120CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE120CA is usually 5 days.
3.What payment methods are accepted for 1V5KE120CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE120CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE120CA?
1V5KE120CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE120CA 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 1V5KE120CA?
For technical support, including 1V5KE120CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE120CA requirements.
6.How does Aetrix verify that 1V5KE120CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE120CA 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 1V5KE120CA meets industry standards.
7.What is the process for return or replacement of 1V5KE120CA?
All 1V5KE120CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE120CA, 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 1V5KE120CA part is unused and in its original packaging.
Return procedure for 1V5KE120CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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