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Taiwan Semiconductor Corporation 1.5KE120CA R0G
- Part No.:
- 1.5KE120CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE120CA R0G.pdf
- Description:
- TVS DIODE 102VWM 165VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,398
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Product details
Overview
1.5KE120CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 120V, clamping voltage 173V at 9.1A peak pulse current, and working stand-off voltage 97.2V. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE120CA R0G datasheet, 1.5KE120CA R0G pinout, 1.5KE120CA R0G application, or 1.5KE120CA R0G equivalent, this part delivers AEC-Q101-qualified surge immunity, sub-5ns response for bidirectional ESD/EFT protection, low dynamic impedance, and RoHS/halogen-free compliance in high-reliability embedded systems.
Technical Context
The 1.5KE120CA R0G is a bipolar junction TVS diode designed for bidirectional transient suppression across DC power lines and signal interfaces. Its symmetrical VBR (108–132V) and matched clamping behavior in both polarities enable robust protection without polarity dependency.
It operates within -55°C to +175°C junction temperature range, supports 1ms 10/1000μs waveform surges up to 1500W, and exhibits ≤1μA leakage at 97.2V - critical for low-power standby circuits. Temperature coefficient of VBR is 0.107%/°C, enabling predictable voltage drift under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 108V / 132V - ensures reliable conduction onset across manufacturing tolerance and temperature |
| VWM | 97.2V - maximum continuous operating voltage before leakage exceeds 1μA |
| VC @ IPP | 173V at 9.1A - limits downstream voltage during worst-case 10/1000μs surge |
| PPK | 1500W - handles automotive load-dump and inductive switching energy per ISO 7637-2 |
| TJ max | +175°C - supports under-hood and industrial ambient environments without derating |
| Response time | <5.0ns - fast enough to suppress EFT bursts before IC damage occurs |
| Package | DO-201 - industry-standard axial leaded package with UL 94V-0 molding and J-STD-002 solderability |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy-molded case with cathode band marking for unidirectional variants; 1.5KE120CA R0G is bidirectional and has no polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode | Bidirectional surge path | Both terminals serve as interchangeable surge current entry/exit points - no polarity constraint in PCB layout |
| Leads | Thermal and electrical interface | Pure tin-plated leads support reflow and wave soldering; thermal resistance depends on pad area (0.6"×0.6" copper required for full 1500W rating) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics - includes stress testing for temperature cycling, HTRB, and ESD per JEDEC standards |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) without degradation |
| Low dynamic impedance | Enables tighter clamping margin - reduces overshoot during fast-rising transients like ESD |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing and export compliance |
| 175°C junction rating | Supports operation in engine control units, motor drives, and industrial power supplies without thermal derating |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤173V during 10/1000μs surges, preventing latch-up or gate oxide rupture in downstream silicon. | Use Scenario: Digital input modules receiving 24V sensor signals in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional transient shunt across input terminals to absorb EFT bursts and cable-coupled noise. Use Value: Maintains signal integrity by clamping transients below PLC input threshold while drawing <1μA at 24V nominal. |
| LED Driver Surge Suppression | Telecom Power Interface |
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Secondary-level TVS on DC bus after bridge rectifier and bulk capacitor. Use Value: Absorbs residual 1500W surges not filtered by upstream MOVs, extending driver IC lifetime. | Use Scenario: 48V DC power feed to remote radio units in telecom base stations. IC Role / Device Role / Timing Role: Bidirectional clamp on power pair to protect PoE-like interface circuitry. Use Value: Survives repeated 10/1000μs surges up to 1500W without parameter shift - verified per AEC-Q101 HTGB testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ120CA | Same DO-214AC package; 120V VBR, 173V VC, but rated 400W - lower surge capacity | Not suitable for ISO 7637-2 Pulse 1 (load dump); limited to ESD/EFT only | Select only when board space constraints prevent DO-201 use and surge energy is ≤400W |
| ON Semiconductor 1.5SMC120CA | DO-214AB package; identical 120V/173V specs but 1500W rating - same surge capability | Requires PCB footprint change; slightly higher thermal resistance due to smaller body | Use when DO-214AB is already standardized in design; verify thermal relief pad area meets 1.5SMC120CA derating curve |
Compared with SMAJ120CA and 1.5SMC120CA, the 1.5KE120CA R0G offers DO-201 mechanical robustness, proven AEC-Q101 qualification, and optimal thermal performance on standard 0.6"×0.6" copper pads - making it preferred for automotive and high-energy industrial deployments.
Availability
1.5KE120CA R0G is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, LED driver power stages, and telecom 48V power interfaces requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5KE120CA R0G 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and consistent clamping performance across temperature and life cycle.
FAQ
What does the 'CA' suffix mean in 1.5KE120CA R0G?
The 'CA' suffix in 1.5KE120CA R0G indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions, with identical breakdown (108–132V) and clamping (173V) characteristics across either terminal. This eliminates polarity concerns during placement and suits AC-coupled or floating signal lines.
Is 1.5KE120CA R0G AEC-Q101 qualified?
Yes, 1.5KE120CA R0G is AEC-Q101 qualified - confirmed by Taiwan Semiconductor's O2104 datasheet revision and ordering code structure ('H' suffix denotes qualification, though R0G is standard grade; qualification applies to the 1.5KE120CA family). It undergoes temperature cycling, high-temperature reverse bias, and ESD testing per AEC-Q101 requirements.
What is the maximum clamping voltage of 1.5KE120CA R0G under surge conditions?
The maximum clamping voltage of 1.5KE120CA R0G is 173V at 9.1A peak pulse current (IPP) under the standard 10/1000μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can 1.5KE120CA R0G be used in place of a unidirectional TVS like 1.5KE120A?
No - 1.5KE120CA R0G is bidirectional and cannot replace unidirectional 1.5KE120A in circuits requiring polarity-specific clamping, such as DC power rails with defined anode/cathode orientation. Substitution would compromise protection if reverse-biased leakage or forward conduction paths are critical; always verify circuit topology before interchange.
What is the leakage current specification for 1.5KE120CA R0G at its working voltage?
At its working stand-off voltage (VWM) of 97.2V, the 1.5KE120CA R0G exhibits maximum blocking leakage current (ID) of 1μA - measured at 25°C. This low leakage ensures minimal power loss in always-on systems and prevents false triggering in high-impedance sensing nodes.
1.5KE120CA R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 9.5A
- 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-201
1.5KE120CA R0G FAQ
1.How can I place an order for 1.5KE120CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE120CA R0G 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 1.5KE120CA R0G reliable?
The price and inventory of 1.5KE120CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE120CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE120CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE120CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE120CA R0G?
1.5KE120CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE120CA R0G 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 1.5KE120CA R0G?
For technical support, including 1.5KE120CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE120CA R0G requirements.
6.How does Aetrix verify that 1.5KE120CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE120CA R0G 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 1.5KE120CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE120CA R0G?
All 1.5KE120CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE120CA R0G, 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 1.5KE120CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE120CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE120CA R0G Tags
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