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Taiwan Semiconductor Corporation 1.5KE150CA R0G
- Part No.:
- 1.5KE150CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150CA R0G.pdf
- Description:
- TVS DIODE 128VWM 207VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,450
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Product details
Overview
1.5KE150CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 150V nominal breakdown voltage (VBR min/max = 135V/165V), 121V working stand-off voltage (VWM), and 215V clamping voltage (VC) at 7.3A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE150CA R0G datasheet, 1.5KE150CA R0G pinout, 1.5KE150CA R0G application, or 1.5KE150CA R0G equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (R0G suffix denotes green, halogen-free, RoHS-compliant DO-201 packaging), low leakage (<1µA @ 121V), and 1.0ps response time for unidirectional mode (5.0ns for bidirectional).
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance across positive and negative transients. Its 1500W peak pulse power rating at 10/1000μs waveform and 175°C maximum junction temperature support robust surge immunity in harsh environments.
Designed for high-reliability automotive applications, it meets ISO 7637-2 immunity requirements and features pure tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. The DO-201 package provides mechanical stability and thermal dissipation suitable for board-level ESD and load-dump protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 121 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 135 V / 165 V - Breakdown occurs within this range at 1.0 mA test current; ensures predictable turn-on threshold |
| VC @ IPP | 215 V at 7.3 A - Clamping voltage during 10/1000μs surge; limits downstream voltage stress |
| PPK | 1500 W - Peak pulse power handling capacity defines transient energy absorption capability |
| Response Time | 5.0 ns (bidirectional) - Enables suppression of fast-rising EFT and ESD events before IC damage occurs |
| Leakage Current | <1 µA @ 121 V - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
| Junction Temp | –55°C to +175°C - Supports operation in under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: DO-201 - Axial-leaded, molded plastic case rated UL 94V-0; polarity indicated by cathode band (bidirectional symmetry eliminates functional anode/cathode distinction).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient return path (bidirectional) | Functions identically as cathode; bidirectional conduction enables single-device protection of AC or floating DC lines |
| Cathode (band end) | Transient return path (bidirectional) | Electrically identical to anode terminal; no functional distinction in CA-suffix devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of differential signals, AC power inputs, or floating bus lines without polarity concerns |
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
| ISO 7637-2 compliance | Guarantees immunity to standardized vehicle electrical transients (Pulse 1, 2a, 2b, 3a, 3b) without external circuit modification |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive; supports environmentally compliant manufacturing and end-of-life handling |
| Low dynamic impedance | Ensures minimal voltage overshoot during high-current surges, preserving system-level timing and logic integrity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs from load dump and alternator switching transients. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point to shunt >100V spikes away from LDOs, MCUs, and CAN transceivers. Use Value: Limits rail voltage to ≤215V during 1500W transients, preventing latch-up or permanent damage to downstream silicon. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on differential or single-ended signal lines to absorb EFT bursts and inductive kickback. Use Value: Maintains signal integrity by clamping ±215V transients within nanoseconds, avoiding ADC saturation or op-amp input stage damage. |
| LED Driver Overvoltage Protection | Telecom Line Card Surge Suppression |
Use Scenario: Securing constant-current LED drivers in streetlight or automotive headlamp systems against inductive switching surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to clamp flyback voltages generated by long cable inductance. Use Value: Absorbs up to 1500W surge energy while holding output voltage below 215V, preventing MOSFET avalanche failure and driver IC destruction. | Use Scenario: Front-end protection of Ethernet PHY or RS-485 transceivers on telecom line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protector on data lines, coordinated with GDTs or polymer PTCs to handle multi-kV threats. Use Value: Fast 5.0ns response and low clamping voltage ensure transceiver I/O pins remain within absolute maximum ratings during 10/1000μs surges. |
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 SMAJ150CA | Same 150V VBR range, DO-214AC (SMA) package, 600W rating (lower than 1500W) | Lower power handling requires derating in high-energy automotive load-dump scenarios | Select when space-constrained layouts favor surface-mount and surge energy is ≤600W |
| ON Semiconductor 1.5SMC150CA | DO-214AB (SMC) package, 1500W rating, VBR 135–165V, but not AEC-Q101 qualified | Lacks automotive qualification; unsuitable for safety-critical vehicle subsystems | Choose for industrial or consumer applications where AEC-Q101 is not mandated |
Compared with SMAJ150CA and 1.5SMC150CA, the 1.5KE150CA R0G uniquely combines 1500W surge capability, AEC-Q101 qualification, and axial DO-201 through-hole mounting-making it optimal for high-reliability automotive power rail protection where mechanical robustness and qualification compliance are mandatory.
Availability
1.5KE150CA R0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver overvoltage safeguarding requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE150CA 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 for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in automotive power systems, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust DO-201 packaging for under-hood deployment.
FAQ
What does the 'CA' suffix mean in 1.5KE150CA R0G?
The 'CA' suffix in 1.5KE150CA R0G indicates a bidirectional configuration - meaning the device clamps transient voltages symmetrically in both polarities. This eliminates the need to orient the component during placement and makes it ideal for protecting AC-coupled lines, differential buses, or floating DC rails where polarity reversal may occur. Unlike unidirectional 'A' variants, the CA version has no designated anode or cathode for functional operation.
Is 1.5KE150CA R0G AEC-Q101 qualified?
Yes, 1.5KE150CA R0G is AEC-Q101 qualified. The 'R0G' suffix confirms RoHS-compliant, halogen-free construction and full qualification to the AEC-Q101 stress test standard for discrete semiconductors - including HTGB, HTRB, TCT, and ESD testing. This qualification validates its suitability for automotive powertrain, body control, and ADAS applications where reliability under thermal and electrical stress is critical.
What is the clamping voltage of 1.5KE150CA R0G at its rated surge current?
The clamping voltage (VC) of 1.5KE150CA R0G is 215 V at a peak impulse current (IPP) of 7.3 A, measured under the standard 10/1000 μs double-exponential surge waveform. This value represents the maximum voltage that will appear across the device terminals during a full-rated 1500W transient event, directly limiting stress on downstream components such as MCUs, transceivers, or power regulators.
Can 1.5KE150CA R0G be used in place of a unidirectional TVS like 1.5KE150A?
No - 1.5KE150CA R0G cannot be substituted for a unidirectional 1.5KE150A without circuit review. While both share identical VBR (135–165 V) and VC (215 V) specs, the CA variant conducts in both directions and lacks a defined forward voltage drop specification. Using it in a DC-biased rail intended for unidirectional clamping may cause unintended conduction or increased leakage, especially near VWM (121 V). Always verify bias topology before interchanging CA and A suffixes.
What is the maximum junction temperature rating for 1.5KE150CA R0G?
The maximum junction temperature (TJ MAX) for 1.5KE150CA R0G is +175°C, with a minimum of –55°C. This wide operating range supports deployment in under-hood automotive environments and industrial enclosures subject to extreme ambient temperatures. Thermal design must ensure steady-state power dissipation (5 W at TL = 75°C on 16 mm × 16 mm copper pad) and transient self-heating remain within this limit to maintain long-term reliability and clamping consistency.
1.5KE150CA 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.6A
- 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
1.5KE150CA R0G FAQ
1.How can I place an order for 1.5KE150CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150CA 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 1.5KE150CA R0G reliable?
The price and inventory of 1.5KE150CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE150CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150CA R0G?
1.5KE150CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150CA 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 1.5KE150CA R0G?
For technical support, including 1.5KE150CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150CA R0G requirements.
6.How does Aetrix verify that 1.5KE150CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE150CA 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 1.5KE150CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE150CA R0G?
All 1.5KE150CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150CA 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 1.5KE150CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE150CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150CA R0G Tags
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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