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Taiwan Semiconductor Corporation 1.5KE11CA R0G
- Part No.:
- 1.5KE11CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE11CA R0G.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,346
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Product details
Overview
1.5KE11CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 11V nominal breakdown voltage (VBR = 9.9–12.1V @ 1.0mA), 8.92V working stand-off voltage (VWM), and 16.2V maximum clamping voltage (VC @ IPP = 97A) for robust ESD and surge protection in automotive power rails and industrial sensor interfaces.
For engineers reviewing the 1.5KE11CA R0G datasheet, 1.5KE11CA R0G pinout, 1.5KE11CA R0G application, or 1.5KE11CA R0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, AEC-Q101 qualification, low dynamic impedance, and DO-201 mechanical compatibility with high-reliability PCB layouts.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance without polarity dependence-critical for protecting differential signal lines and AC-coupled circuits against fast transients. Its 10/1000μs waveform surge rating of 1500W and sub-5ns response time ensure effective suppression of electrical fast transients (EFT) and load-dump spikes.
Designed for automotive-grade reliability, the 1.5KE11CA R0G meets AEC-Q101 stress testing requirements and supports junction temperatures up to +175°C. Its low leakage (<1μA @ VWM) and tight VBR tolerance (±10%) enable stable operation in low-power sensing nodes and battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 9.9V / 12.1V @ 1.0mA - Ensures predictable turn-on across temperature and unit variation for repeatable protection threshold |
| VWM | 8.92V - Maximum continuous reverse voltage before significant leakage; compatible with 9V nominal supply rails |
| VC @ IPP | 16.2V @ 97A - Clamped voltage during 1500W surge limits downstream IC stress to safe levels |
| PPK | 1500W - Peak pulse power handling at 10/1000μs waveform enables robust immunity to ISO 7637-2 load dump events |
| Junction Temp | −55°C to +175°C - Supports under-hood automotive and industrial environments without derating |
| Package | DO-201 - Standard axial-leaded through-hole package with UL 94V-0 molding and tin-plated leads per J-STD-002 |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking (not functional for bidirectional operation). Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No polarity dependency - either lead serves as input/output terminal for transient suppression in AC or floating circuits |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPP in both directions - eliminates need for orientation-aware layout in differential or AC signal paths |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - suitable for engine control, body electronics, and ADAS power domains |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (EFT) - full system-level EMC robustness |
| Low dynamic impedance | Enables rapid voltage clamping with minimal overshoot - critical for protecting fast-switching MOSFET gates and microcontroller I/O |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and CAN node power inputs from load-dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed at power entry point to limit voltage excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 5V/12V rail-powered transceivers during ISO 7637-2 Pulse 5a events up to 35V peak. | Use Scenario: Shielding 4–20mA current-loop sensors in factory automation from EFT bursts and electrostatic discharge in dusty, high-noise environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on sensor supply line, operating continuously at 24V DC with <1μA leakage. Use Value: Maintains signal integrity by limiting transient-induced offset errors and preventing ADC saturation during 5kV ESD contact discharge. |
| LED Driver Input Stage | AC-DC Adapter Secondary Side |
Use Scenario: Safeguarding constant-current LED driver ICs from inductive kickback when driving solenoid-based dimming circuits. IC Role / Device Role / Timing Role: Fast-response shunt protector across driver input capacitor, absorbing energy from flyback spikes. Use Value: Extends driver lifetime by suppressing >100V spikes within 5ns, avoiding gate oxide stress in integrated MOSFETs. | Use Scenario: Suppressing switching noise and line surges on the low-voltage secondary output of isolated AC-DC adapters used in medical peripherals. IC Role / Device Role / Timing Role: Secondary-side TVS across 5V/12V output rail to prevent overvoltage propagation to connected equipment. Use Value: Limits output voltage to ≤16.2V during 1.5kW surge events, satisfying IEC 60601-1 creepage and safety margin requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | DO-214AA (SMB) package, 1.0kW rating, VC = 18.2V @ 54A | Lower surge capacity and higher clamping voltage; suited for space-constrained PCBs where 1500W is not required | Select SMBJ11CA only if board area is constrained and peak surge energy remains below 1kJ |
| 1.5SMC11CA | DO-214AB (SMC) package, 1.5kW rating, VC = 17.0V @ 88A, AEC-Q101 qualified | Same power rating but surface-mount format; requires rework of footprint and thermal pad design | Choose 1.5SMC11CA for automated SMT assembly and improved thermal dissipation via copper pour |
Compared with SMBJ11CA and 1.5SMC11CA, the 1.5KE11CA R0G provides through-hole mechanical robustness, proven DO-201 thermal performance under sustained surge conditions, and direct compatibility with legacy automotive harness interfaces requiring axial leads.
Availability
1.5KE11CA R0G is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and LED driver input stage surge suppression requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for 1.5KE11CA 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, specializing in high-reliability protection devices, rectifiers, and power management components.
The 1.5KE series was developed specifically for automotive and industrial transient suppression, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and ruggedized DO-201 packaging for harsh-environment deployment.
FAQ
What does the 'CA' suffix indicate in 1.5KE11CA R0G?
The 'CA' suffix in 1.5KE11CA R0G denotes bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity. This distinguishes it from unidirectional variants (e.g., 1.5KE11A) and makes it suitable for AC-coupled circuits, differential buses, and floating power domains where polarity cannot be guaranteed. The 1.5KE11CA R0G has no functional cathode/anode marking requirement.
Is 1.5KE11CA R0G AEC-Q101 qualified?
Yes, 1.5KE11CA R0G is AEC-Q101 qualified, as confirmed in the official Taiwan Semiconductor 1.5KE series datasheet (Version O2104). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for automotive powertrain, chassis, and body electronics applications where reliability under thermal and mechanical stress is mandatory. The 1.5KE11CA R0G carries this qualification without requiring additional 'H' suffix notation.
What is the maximum clamping voltage of 1.5KE11CA R0G during a 1500W surge event?
The maximum clamping voltage (VC) of 1.5KE11CA R0G is 16.2V at a peak pulse current (IPP) of 97A, measured under the standard 10/1000μs double-exponential surge waveform. This value represents the upper bound of voltage seen by downstream circuitry during worst-case transient events, ensuring compatibility with 5V and 12V logic and power ICs rated for ≤20V absolute maximum. The 1.5KE11CA R0G maintains this clamping performance across its full operating temperature range.
Can 1.5KE11CA R0G replace 1.5KE11A in an existing design?
No, 1.5KE11CA R0G cannot directly replace 1.5KE11A without circuit review: the 'CA' variant is bidirectional while 'A' is unidirectional, resulting in different IV curves and failure modes under reverse bias. In a unidirectional application (e.g., DC power rail with defined polarity), substituting 1.5KE11CA R0G introduces unnecessary conduction path risk during normal operation and alters surge current distribution. The 1.5KE11CA R0G is intended for bipolar or AC-coupled use cases only - verify polarity constraints before integration.
What is the leakage current specification for 1.5KE11CA R0G at its working stand-off voltage?
The maximum blocking leakage current (ID) for 1.5KE11CA R0G is less than 1μA at its working stand-off voltage (VWM = 8.92V), as specified in the Taiwan Semiconductor 1.5KE series datasheet. This ultra-low leakage ensures minimal power loss in always-on systems such as automotive wake-up circuits and battery-powered IoT sensors. The 1.5KE11CA R0G maintains this performance across its full −55°C to +175°C junction temperature range, with no increase beyond 1μA even at maximum rated temperature.
1.5KE11CA 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 100A
- 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
1.5KE11CA R0G FAQ
1.How can I place an order for 1.5KE11CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE11CA 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 1.5KE11CA R0G reliable?
The price and inventory of 1.5KE11CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE11CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE11CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE11CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE11CA R0G?
1.5KE11CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE11CA 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 1.5KE11CA R0G?
For technical support, including 1.5KE11CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE11CA R0G requirements.
6.How does Aetrix verify that 1.5KE11CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE11CA 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 1.5KE11CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE11CA R0G?
All 1.5KE11CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE11CA 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 1.5KE11CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE11CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE11CA R0G Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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