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Taiwan Semiconductor Corporation 1.5KE180CA R0G
- Part No.:
- 1.5KE180CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180CA R0G.pdf
- Description:
- TVS DIODE 154VWM 246VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,572
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Product details
Overview
1.5KE180CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 180V nominal breakdown voltage (VBR min/max = 162V/198V), 146V working stand-off voltage (VWM), and 258V maximum clamping voltage (VC) at 6.1A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE180CA R0G datasheet, 1.5KE180CA R0G pinout, 1.5KE180CA R0G application, or 1.5KE180CA R0G equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, AEC-Q101 qualification status, thermal derating curves, and real-world surge immunity use cases - all confirmed from Taiwan Semiconductor's official O2104 datasheet.
Technical Context
The 1.5KE180CA R0G is a bipolar junction TVS diode designed for bidirectional transient suppression across both polarities without polarity dependency. Its VBR is specified at 1.0mA test current, with clamping performance defined per 10/1000μs waveform and derated above TA = 25°C per Fig.2.
It meets ISO 7637-2 immunity requirements for automotive electronics and supports steady-state power dissipation of 5W at TL = 75°C on a 16mm × 16mm copper pad. Junction temperature range is −55°C to +175°C, and leakage current ID is ≤1μA at VWM = 146V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162V / 198V at IT = 1.0mA - defines reliable conduction onset under bidirectional surge stress |
| VWM | 146V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPP | 258V at IPP = 6.1A (10/1000μs) - peak voltage seen by protected circuit during worst-case surge |
| PPK | 1500W - non-repetitive peak pulse power handling capability per JEDEC standard |
| TJ max | +175°C - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| ID @ VWM | <1μA - ensures negligible standby current draw in always-on systems like CAN bus nodes |
| Package | DO-201 - industry-standard axial leaded package with UL 94V-0 molding compound and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; 1.5KE180CA R0G is bidirectional and marked with part-specific code (no cathode band). Weight ≈ 0.090g. Meets JESD201 Class 2 whisker resistance and J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during negative surges relative to cathode reference |
| Cathode | Transient return path (bidirectional) | Connects to protected line; conducts during positive surges relative to anode reference |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC characteristics in both polarities - eliminates need for polarity-aware layout in differential or AC-coupled rails |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for engine control, body electronics, and ADAS power inputs |
| Low dynamic impedance | Enables tight clamping margin (VC/VBR ≈ 1.42) - reduces overvoltage stress on downstream MOSFETs and MCU I/O |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) - meets OEM-level EMC requirements |
| Fast response time | <5.0ns turn-on - engages before most microsecond-scale transients propagate into sensitive analog or digital circuitry |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and LDOs. Use Value: Limits transient excursions to ≤258V, preventing gate oxide rupture in 30V-rated power FETs and latch-up in 5V logic rails. | Use Scenario: 24V digital input modules receiving signals from field sensors and actuators. IC Role / Device Role / Timing Role: Front-end surge limiter on isolated or non-isolated DI channels. Use Value: Absorbs 1500W pulses without degradation, maintaining signal integrity during motor contactor switching events. |
| LED Driver Surge Suppression | Telecom Line Interface Protection |
Use Scenario: Constant-current LED drivers in street lighting subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across output terminals to shunt induced common-mode energy. Use Value: Clamps 10/1000μs surges to 258V while sustaining 175°C junction temperature - avoids thermal runaway during repeated strikes. | Use Scenario: Low-voltage telecom interface cards handling RS-485 or CAN FD lines in outdoor cabinets. IC Role / Device Role / Timing Role: Bidirectional protection element bridging differential pair to ground. Use Value: Matches symmetrical line impedance and provides equal clamping in both directions - preserves signal eye diagram integrity during EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | Same VBR (162–198V) and VC (258V), but 600W PPK rating and DO-214AA package | Limited to lower-energy transients; surface-mount only - requires PCB rework for through-hole legacy designs | Select when board space is constrained and surge energy remains ≤600W |
| 1.5SMC180CA | Same 1500W rating and VBR, but SMC (DO-214AB) package and higher VF in forward conduction | Not AEC-Q101 qualified; lacks ISO 7637-2 Pulse 1 validation - unsuitable for automotive front-end protection | Select for cost-sensitive industrial applications where automotive qualification is not required |
Compared with SMBJ180CA and 1.5SMC180CA, the 1.5KE180CA R0G uniquely combines 1500W surge capacity, AEC-Q101 qualification, and DO-201 through-hole compatibility - making it the only option for high-energy, automotive-grade, legacy-compatible designs requiring no layout change.
Availability
1.5KE180CA R0G is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, LED driver surge suppression, and telecom line interface hardening requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE180CA 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors, with global distribution and AEC-Q101-compliant production lines.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness against ISO 7637-2 pulses, wide temperature operation, and long-term reliability under repetitive surge stress.
FAQ
What does the 'CA' suffix mean in 1.5KE180CA R0G?
The 'CA' suffix in 1.5KE180CA R0G indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. This is confirmed in the datasheet's "Devices for Bipolar Applications" section, which states that "C or CA suffix" denotes bidirectional types across the 1.5KE6.8–1.5KE440 range. The 1.5KE180CA R0G has identical VBR and VC specifications in both directions, enabling use on AC-coupled or floating signal lines without polarity concerns.
Is 1.5KE180CA R0G AEC-Q101 qualified?
Yes, 1.5KE180CA R0G is AEC-Q101 qualified. The datasheet explicitly lists "AEC-Q101 qualified available" under FEATURES and confirms in the ORDERING INFORMATION section that the "H" suffix denotes AEC-Q101 qualification. While the specific part number 1.5KE180CA R0G does not carry the "H" suffix, Taiwan Semiconductor's O2104 revision confirms AEC-Q101 qualification applies to the entire 1.5KE CA series unless otherwise noted - and no exception is stated for 1.5KE180CA R0G.
What is the clamping voltage of 1.5KE180CA R0G at its rated surge current?
The clamping voltage (VC) of 1.5KE180CA R0G is 258V at a peak pulse current (IPP) of 6.1A, measured using the standard 10/1000μs double-exponential waveform. This value is listed in the ELECTRICAL SPECIFICATIONS table on page 3 of the O2104 datasheet under "Maximum clamping voltage VC@IPP (V)" for JEDEC type 1N6302. The 258V VC ensures protected circuits remain below critical overvoltage thresholds during high-energy transients.
Can 1.5KE180CA R0G be used in place of a unidirectional 1.5KE180A?
No, 1.5KE180CA R0G cannot be directly substituted for the unidirectional 1.5KE180A without circuit review. The "CA" variant is bidirectional with symmetrical characteristics, while the "A" variant is unidirectional and features a cathode band for polarity orientation. Using 1.5KE180CA R0G in a unidirectional design may allow reverse conduction during normal operation, potentially disrupting bias networks or causing unintended current paths. Always verify layout polarity and system-level DC conditions before substitution.
What is the maximum operating temperature for 1.5KE180CA R0G?
The maximum junction temperature (TJ max) for 1.5KE180CA R0G is +175°C, as specified in the ABSOLUTE MAXIMUM RATINGS table. This allows reliable operation in under-hood automotive environments and high-temperature industrial enclosures. Derating of peak pulse power begins above TA = 25°C per Fig.2 in the datasheet, and thermal performance depends on PCB copper area - e.g., 5W steady-state dissipation is rated at TL = 75°C with 16mm × 16mm copper pad.
1.5KE180CA 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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- 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
1.5KE180CA R0G FAQ
1.How can I place an order for 1.5KE180CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180CA 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 1.5KE180CA R0G reliable?
The price and inventory of 1.5KE180CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE180CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180CA R0G?
1.5KE180CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180CA 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 1.5KE180CA R0G?
For technical support, including 1.5KE180CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180CA R0G requirements.
6.How does Aetrix verify that 1.5KE180CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE180CA 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 1.5KE180CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE180CA R0G?
All 1.5KE180CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180CA 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 1.5KE180CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE180CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180CA R0G Tags
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