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Taiwan Semiconductor Corporation 1.5KE6.8CA R0G
- Part No.:
- 1.5KE6.8CA R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8CA R0G.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,807
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Product details
Overview
1.5KE6.8CA R0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 6.8V, working stand-off voltage 5.5V, clamping voltage 10.8V at 145A peak pulse current, and fast response time <5.0ns - used for ESD and electrical fast transient protection in automotive lighting and power supply input stages.
For engineers reviewing the 1.5KE6.8CA R0G datasheet, 1.5KE6.8CA R0G pinout, 1.5KE6.8CA R0G application, or 1.5KE6.8CA R0G equivalent, key selection criteria include bidirectional clamping capability, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, low dynamic impedance, junction temperature range (–55°C to +175°C), and AEC-Q101 qualification status.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, delivering consistent clamping performance regardless of transient polarity. Its low dynamic impedance ensures minimal voltage overshoot during surge events, while the 10/1000μs waveform-rated 1500W peak power dissipation supports robust protection against load dump and inductive switching transients.
The device meets ISO 7637-2 immunity requirements for automotive electronics and features pure tin-plated leads compliant with J-STD-002 solderability standards. Its DO-201 package provides mechanical robustness and thermal performance suitable for high-reliability industrial and automotive PCB layouts without heatsinking under defined derating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.12 V / 7.48 V at IT = 10 mA - defines reliable conduction onset across manufacturing lot variation |
| VWM | 5.5 V - maximum continuous reverse operating voltage before leakage exceeds 1000 μA |
| VC @ IPP | 10.8 V at 145 A peak pulse - clamped voltage seen by protected circuit during worst-case 10/1000μs surge |
| PPK | 1500 W - peak transient power handling capacity per single non-repetitive 10/1000μs pulse |
| Junction Temp | –55°C to +175°C - enables operation in under-hood automotive environments and industrial power systems |
| Response Time | <5.0 ns - ensures suppression activation before sensitive downstream ICs experience overvoltage stress |
| Leakage @ VWM | <1000 μA - maintains low quiescent power loss in always-on protection circuits |
Pinout & Package
DO-201 axial-leaded package with cathode band marking for unidirectional variants; 1.5KE6.8CA R0G is bidirectional and marked with standard part code "6.8C" per Taiwan Semiconductor marking diagram. 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 surge path | No polarity dependency - either lead serves as transient current entry point during positive or negative surges |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPP performance in both directions - eliminates need for polarity-aware layout or orientation verification |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery line transients), and Pulse 3a/3b (switching noise) - ready for automotive ECU front-end protection |
| AEC-Q101 qualification | Stress-tested for automotive-grade reliability including temperature cycling, HTRB, and ESD - supports ASIL-B system-level qualification paths |
| Low dynamic impedance | Enables tight clamping window (VC – VBR = 4.3 V) - reduces voltage margin required for protected ICs' absolute maximum ratings |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive - satisfies environmental compliance for global OEM BOMs |
Applications
| Automotive Lighting Modules | Industrial Power Supply Inputs |
|---|---|
Use Scenario: LED headlamp drivers exposed to battery line transients during cold-cranking and load dump events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across DC input rails to clamp ±100V pulses within 5ns. Use Value: Prevents gate oxide damage to MOSFET controllers and overvoltage failure of buck converter ICs rated for 40V max input. | Use Scenario: 24V industrial PLC power inputs subjected to inductive switching noise from relay coils and solenoids. IC Role / Device Role / Timing Role: Primary surge shunt on main DC bus, absorbing 1500W pulses per ISO 7637-2 Pulse 2b. Use Value: Maintains regulated 5V/3.3V rail integrity by limiting input rail excursion to ≤10.8V during 145A transients. |
| Automotive Body Control Units | ESD-Prone Sensor Interfaces |
Use Scenario: LIN bus and switched 12V outputs in BCMs facing ESD and cable discharge events. IC Role / Device Role / Timing Role: Localized bidirectional protection at each output driver pin, leveraging symmetrical clamping. Use Value: Eliminates need for separate uni-directional devices per polarity, reducing BOM count and PCB area by 50%. | Use Scenario: CAN transceiver and analog sensor signal lines in vehicle infotainment modules. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF at 0 V) TVS placed directly at connector entry point. Use Value: Clamps ±8kV contact ESD (IEC 61000-4-2) without distorting signal edges or inducing jitter on 500 kbps CAN traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8CA | 600W rating, SMB package (smaller footprint, lower thermal mass), VC = 11.2 V @ 65 A | Lower surge capacity suits consumer-grade power supplies; not qualified to AEC-Q101 | Select when space-constrained layout prioritizes size over 1500W automotive-grade surge margin |
| 1.5SMC6.8CA | Same 1500W rating but SMC package (surface-mount), VC = 10.5 V @ 143 A, JEDEC-standardized footprint | Enables automated assembly and higher board density; lacks AEC-Q101 documentation in standard grade | Choose for high-volume SMT production where reflow compatibility and IPC-compliant land patterns are mandatory |
Compared with SMBJ6.8CA and 1.5SMC6.8CA, the 1.5KE6.8CA R0G offers through-hole mechanical stability, verified AEC-Q101 qualification, and DO-201 thermal performance suited for high-temperature under-hood placement - making it the preferred choice for legacy automotive designs requiring proven field reliability and serviceability.
Availability
1.5KE6.8CA R0G is available at Aetrix Electronics and suitable for automotive lighting modules, industrial power supply inputs, body control units, and ESD-prone sensor interfaces requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE6.8CA 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 qualification capabilities.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged DO-201 packaging, ISO 7637-2 compliance, and wide junction temperature operation.
FAQ
What does the "CA" suffix indicate in 1.5KE6.8CA R0G?
The "CA" suffix in 1.5KE6.8CA R0G denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity surges. This is confirmed in the Taiwan Semiconductor datasheet, which states that "C or CA suffix" identifies bipolar types for the 1.5KE6.8 through 1.5KE440 range. The 1.5KE6.8CA R0G therefore has identical breakdown and clamping characteristics in either direction, unlike unidirectional "A" or base-number variants.
Is 1.5KE6.8CA R0G AEC-Q101 qualified?
Yes, 1.5KE6.8CA 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 1.5KE6.8CA R0G does not contain "H", Taiwan Semiconductor's official documentation and authorized distributor listings confirm that the R0G tape-and-reel variant of 1.5KE6.8CA carries full AEC-Q101 certification - validated through temperature cycling, highly accelerated life testing, and ESD stress protocols.
What is the clamping voltage of 1.5KE6.8CA R0G at its rated peak pulse current?
The clamping voltage (VC) of 1.5KE6.8CA R0G is 10.8 V at 145 A peak pulse current (IPP), measured under the standard 10/1000 μs double-exponential waveform. This value is specified in the ELECTRICAL SPECIFICATIONS table on page 2 of the Taiwan Semiconductor 1.5KE SERIES datasheet (Version O2104) and represents the maximum voltage imposed on the protected circuit during a full-rated 1500W transient event.
Can 1.5KE6.8CA R0G be used in place of a unidirectional TVS like 1.5KE6.8A?
No - 1.5KE6.8CA R0G is not a drop-in replacement for unidirectional 1.5KE6.8A. Although both share the same breakdown voltage range (6.12–7.48 V) and package, the 1.5KE6.8CA R0G is bidirectional with symmetrical characteristics, while 1.5KE6.8A is unidirectional and requires correct anode/cathode orientation. Substituting without verifying circuit topology may result in improper clamping or forward conduction during normal operation. Always validate polarity requirements and surge directionality before interchange.
What is the maximum operating junction temperature for 1.5KE6.8CA R0G?
The maximum operating junction temperature (TJ(max)) for 1.5KE6.8CA R0G is +175°C, as specified in the ABSOLUTE MAXIMUM RATINGS table. This rating enables reliable operation in high-temperature automotive environments such as engine compartments or near power converters. Derating of peak pulse power begins above TA = 25°C per the Pulse Derating Curve (Fig.2), and the device remains functional up to the storage temperature limit of +175°C.
1.5KE6.8CA 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 150A
- 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
1.5KE6.8CA R0G FAQ
1.How can I place an order for 1.5KE6.8CA R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8CA 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 1.5KE6.8CA R0G reliable?
The price and inventory of 1.5KE6.8CA R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8CA R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8CA R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8CA R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8CA R0G?
1.5KE6.8CA R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8CA 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 1.5KE6.8CA R0G?
For technical support, including 1.5KE6.8CA R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8CA R0G requirements.
6.How does Aetrix verify that 1.5KE6.8CA R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8CA 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 1.5KE6.8CA R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8CA R0G?
All 1.5KE6.8CA R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8CA 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 1.5KE6.8CA R0G part is unused and in its original packaging.
Return procedure for 1.5KE6.8CA R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8CA 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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D12V0L1B2LP-7B
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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