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Taiwan Semiconductor Corporation 1.5KE6.8CAHR0G
- Part No.:
- 1.5KE6.8CAHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8CAHR0G.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,927
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Product details
Overview
1.5KE6.8CAHR0G from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 6.8V nominal breakdown voltage, 5.5V working stand-off voltage, 10.8V maximum clamping voltage at 145A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the 1.5KE6.8CAHR0G datasheet, 1.5KE6.8CAHR0G pinout, 1.5KE6.8CAHR0G application, or 1.5KE6.8CAHR0G equivalent, this device serves as a robust, ISO 7637-2–compliant overvoltage protection component for automotive power line transients, ESD-sensitive interfaces, and inductive load switching circuits.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering sub-nanosecond response (<5.0ns) to fast transients while maintaining low dynamic impedance and clamping voltage. Its VBR min/max of 6.12V/7.48V at 10mA IT ensures precise voltage thresholding under standardized test conditions.
Designed for high-energy surge immunity, it sustains 1500W peak pulse power per 10/1000μs waveform, supports junction temperatures up to +175°C, and meets RoHS and halogen-free (IEC 61249-2-21) requirements - critical for under-hood automotive electronics and industrial control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 6.8V - defines rated standoff and clamping reference point for system-level surge design |
| Breakdown Voltage VBR | 6.12V to 7.48V @ 10mA - tight tolerance ensures predictable turn-on across temperature and production lot |
| Working Stand-off Voltage VWM | 5.5V - maximum continuous reverse voltage before leakage exceeds 1000μA |
| Clamping Voltage VC | 10.8V @ 145A IPP - limits downstream IC voltage stress during 10/1000μs surge events |
| Peak Pulse Power PPK | 1500W - enables protection against high-energy transients like ISO 7637-2 Pulse 1, 2a, 2b, 3a, 3b |
| Junction Temperature Range | −55°C to +175°C - supports operation in harsh automotive engine bay environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DO-201 - axial-leaded, epoxy-molded case with UL 94V-0 flammability rating, pure tin-plated leads compliant with J-STD-002 solderability, and polarity marked by cathode band (not applicable for bidirectional configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge conduction path | No polarity marking required; terminals interchangeable - enables placement without orientation check on PCB |
| Leads (both) | Thermal and electrical interface | Supports 5W steady-state dissipation at TL = 75°C on 16mm × 16mm copper pad; enables direct integration into high-reliability harnesses |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching transients) - eliminates need for external filtering in automotive ECUs |
| Fast response time | <5.0ns rise-to-clamp - intercepts ESD and EFT events before sensitive logic or analog circuitry is damaged |
| Low dynamic impedance | Enables stable clamping under high di/dt surges - reduces overshoot and improves protection margin for 3.3V/5V microcontrollers |
| Halogen-free construction | Meets IEC 61249-2-21 - satisfies automotive OEM material declarations and end-of-life recycling requirements |
| 175°C max junction temperature | Permits placement near heat sources (e.g., power MOSFETs, DC-DC converters) without derating penalties |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and MCU I/O pins from battery load dump and alternator ripple in 12V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and ground, acting as last-line defense against ±100V transients. Use Value: Clamps to ≤10.8V within 5ns, preventing latch-up or gate oxide damage in 5V-tolerant automotive MCUs such as NXP S32K series. | Use Scenario: Shielding RS-485 transceivers in factory automation PLC I/O modules from EFT bursts and cable-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across differential signal lines (A/B) and common-mode to ground, suppressing common- and differential-mode transients. Use Value: Limits transient energy to <150mJ per event via 1500W peak power handling, preserving signal integrity without adding propagation delay. |
| LED Driver Output Protection | ESD-Sensitive Consumer Port Protection |
Use Scenario: Safeguarding constant-current LED driver outputs from inductive kickback when driving solenoid-valve loads in smart lighting systems. IC Role / Device Role / Timing Role: Placed across driver output and return, absorbing reverse EMF spikes generated during MOSFET turn-off. Use Value: Withstands 200A peak forward surge (IFSM), enabling reliable suppression of >100V/10μs spikes without degradation over 10⁵ cycles. | Use Scenario: Adding board-level ESD immunity to USB-C or HDMI ports in automotive infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 1000pF @ 0V) placed before connector, shunting ±15kV HBM discharges to ground. Use Value: Achieves <1μA leakage above 10V, avoiding signal attenuation or bias shift in high-speed differential pairs. |
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 | DO-214AA package, 600W rating, 11.2V clamping at 62A IPP - lower power, smaller footprint | Preferred for space-constrained consumer boards; insufficient for ISO 7637-2 Pulse 1 (1500W) | Select when board area is limited and surge energy does not exceed 600W |
| 1.5KE6.8C | Same DO-201 package and 1500W rating, but lacks AEC-Q101 qualification and halogen-free certification | Acceptable for industrial non-automotive use; not approved for automotive Tier-1 BOMs | Choose only if AEC-Q101 and RoHS/halogen-free compliance are not required |
Compared with SMBJ6.8CA and 1.5KE6.8C, the 1.5KE6.8CAHR0G uniquely combines AEC-Q101 qualification, full ISO 7637-2 coverage, and halogen-free construction - making it the sole option qualified for safety-critical automotive power line protection where regulatory traceability and thermal robustness are mandatory.
Availability
1.5KE6.8CAHR0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface hardening, and LED driver output protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1.5KE6.8CAHR0G 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 engineered specifically for automotive and industrial transient immunity, emphasizing AEC-Q101 compliance, high-temperature stability, and standardized surge waveform performance - directly addressing ISO 7637-2 and IEC 61000-4-5 requirements.
FAQ
What is the clamping voltage of the 1.5KE6.8CAHR0G under maximum surge conditions?
The 1.5KE6.8CAHR0G has a maximum clamping voltage (VC) of 10.8V at 145A peak pulse current (IPP), measured under the standard 10/1000μs double-exponential surge waveform. This value ensures downstream 5V logic remains within safe operating limits during ISO 7637-2 Pulse 1 events. The 1.5KE6.8CAHR0G maintains this clamping performance across its full operating temperature range (−55°C to +175°C), with minimal drift due to its 0.057%/°C VBR temperature coefficient.
Is the 1.5KE6.8CAHR0G unidirectional or bidirectional, and how is polarity identified?
The 1.5KE6.8CAHR0G is a bidirectional TVS diode, indicated by the "CA" suffix per JEDEC nomenclature - meaning it provides symmetrical clamping in both forward and reverse directions. Unlike unidirectional variants (e.g., 1.5KE6.8A), it has no cathode band marking and may be mounted in either orientation. This eliminates assembly errors and simplifies layout for differential or AC-coupled protection paths, such as those used in CAN bus or RS-485 interfaces.
Does the 1.5KE6.8CAHR0G meet automotive qualification standards?
Yes, the 1.5KE6.8CAHR0G is AEC-Q101 qualified, as confirmed by its "H" suffix in the ordering code and explicit listing in Taiwan Semiconductor's AEC-Q101 documentation. It has undergone stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD (HBM ≥ 8kV), and is certified for use in automotive powertrain, body, and chassis modules. The "R0G" suffix further denotes green (halogen-free) compound and RoHS compliance - satisfying Tier-1 OEM material declarations.
What is the maximum continuous reverse voltage the 1.5KE6.8CAHR0G can withstand?
The 1.5KE6.8CAHR0G has a working stand-off voltage (VWM) of 5.5V - the maximum DC or RMS voltage that can be continuously applied without exceeding 1000μA leakage current. This value is derived from the 6.8V nominal breakdown rating and ensures safe operation below the VBR threshold during normal system operation. Exceeding 5.5V risks elevated leakage and premature wear, especially at elevated ambient temperatures.
How does the 1.5KE6.8CAHR0G compare to the standard 1.5KE6.8C in terms of reliability and compliance?
The 1.5KE6.8CAHR0G adds AEC-Q101 qualification, halogen-free construction (IEC 61249-2-21), and RoHS compliance over the base 1.5KE6.8C variant. While both share identical electrical specs (VBR, VC, PPK) and DO-201 packaging, only the 1.5KE6.8CAHR0G is approved for automotive production use. The "HR0G" suffix explicitly denotes these enhanced qualifications - making the 1.5KE6.8CAHR0G the required choice for OEM designs requiring audit-ready compliance documentation and long-term supply assurance.
1.5KE6.8CAHR0G 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE6.8CAHR0G FAQ
1.How can I place an order for 1.5KE6.8CAHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8CAHR0G 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 1.5KE6.8CAHR0G reliable?
The price and inventory of 1.5KE6.8CAHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8CAHR0G is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8CAHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8CAHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8CAHR0G?
1.5KE6.8CAHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8CAHR0G 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 1.5KE6.8CAHR0G?
For technical support, including 1.5KE6.8CAHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8CAHR0G requirements.
6.How does Aetrix verify that 1.5KE6.8CAHR0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8CAHR0G 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 1.5KE6.8CAHR0G meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8CAHR0G?
All 1.5KE6.8CAHR0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8CAHR0G, 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 1.5KE6.8CAHR0G part is unused and in its original packaging.
Return procedure for 1.5KE6.8CAHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8CAHR0G Tags
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Diodes Incorporated
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