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Taiwan Semiconductor Corporation 1.5KE6.8AHR0G
- Part No.:
- 1.5KE6.8AHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8AHR0G.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,370
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Product details
Overview
1.5KE6.8AHR0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with 6.8V nominal breakdown voltage, 5.8V working stand-off voltage, and 10.5V maximum clamping voltage at 17A peak pulse current. It delivers fast sub-nanosecond response (<1.0ps), low dynamic impedance, and AEC-Q101 qualification for automotive-grade surge protection in power rails and I/O lines.
For engineers reviewing the 1.5KE6.8AHR0G datasheet, 1.5KE6.8AHR0G pinout, 1.5KE6.8AHR0G application, or 1.5KE6.8AHR0G equivalent, this part supports ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, offers <1μA leakage above 10V, and is optimized for ESD and inductive switching transient suppression in harsh environments.
Technical Context
This unidirectional TVS diode operates as a clamping device that enters avalanche conduction when transient voltage exceeds its 6.45–7.14V breakdown range at 10mA test current. Its DO-201 package supports 1500W peak pulse power (10/1000μs waveform) and maintains stable clamping up to 175°C junction temperature.
The device exhibits a 0.057%/°C temperature coefficient of VBR, enabling predictable voltage drift over temperature, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements for high-reliability PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 6.8V - defines rated standoff margin before clamping onset |
| Breakdown Voltage VBR | 6.45–7.14V @ 10mA - ensures reliable turn-on within tight tolerance band |
| Working Stand-off Voltage VWM | 5.80V - maximum continuous DC or RMS voltage without leakage exceedance |
| Clamping Voltage VC | 10.5V @ 17A - limits transient voltage seen by protected IC during 10/1000μs surge |
| Peak Pulse Power PPK | 1500W - sustains high-energy transients per ISO 7637-2 without failure |
| Junction Temperature Range | −55°C to +175°C - enables operation in under-hood automotive and industrial environments |
| Leakage Current ID | <1μA @ 5.8V - minimizes standby power loss in battery-powered systems |
Pinout & Package
Package: DO-201 axial leaded package with cathode band marking; tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; forms clamping path during positive transients |
| Cathode | High-side transient input | Connected to protected line (e.g., 5V rail); avalanche conduction initiates here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| 10.5V clamping at 17A | Provides safe voltage ceiling for 5V logic interfaces during ISO 7637-2 Pulse 1 (inductive load dump) |
| <1.0ps response time | Engages before most microcontroller I/O damage thresholds are exceeded |
| UL 94V-0 molding compound | Ensures flame retardancy in enclosed enclosures and high-density PCB assemblies |
| ISO 7637-2 compliance | Meets all five standard automotive transient waveforms (Pulse 1, 2a, 2b, 3a, 3b) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump transients on 5V supply lines feeding engine control unit (ECU) sensors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5V rail and chassis ground to clamp positive surges. Use Value: Limits voltage to ≤10.5V during 10/1000μs 1500W pulses, preventing latch-up or gate oxide rupture in downstream LDOs and ADCs. | Use Scenario: Protecting RS-485 transceiver I/O pins from ESD and field-induced transients in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point, shunting energy before signal conditioning circuitry. Use Value: Sub-1.0ps response ensures clamping occurs prior to 15kV HBM ESD event propagation into transceiver silicon. |
| LED Driver Output Protection | DC-DC Converter Input Protection |
Use Scenario: Safeguarding constant-current LED driver outputs against inductive kickback from solenoid-controlled lighting circuits. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-driver output to absorb reverse EMF. Use Value: 1500W surge rating handles repetitive 8.3ms half-sine surges up to 200A IFSM, extending driver MOSFET lifetime. | Use Scenario: Shielding buck converter input from battery line transients in 12V automotive infotainment head units. IC Role / Device Role / Timing Role: TVS placed upstream of input filter capacitor to prevent overvoltage stress on controller IC and FET gates. Use Value: 5.8V VWM allows full operation across cold-crank (6.0V) to load-dump (16V) conditions while clamping spikes to 10.5V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | DO-214AA package, 600W rating, 11.2V clamping at 10.3A | Lower surge capacity; suited for space-constrained consumer designs, not automotive load dump | Select when board area is critical and peak surge energy ≤600W |
| 1N6267A | Same DO-201 package, identical electrical specs, non-AEC-Q101 version | Lacks automotive qualification testing; acceptable for industrial/commercial use only | Select when AEC-Q101 is not required and cost sensitivity is higher |
Compared with SMBJ6.8A and 1N6267A, the 1.5KE6.8AHR0G uniquely combines AEC-Q101 qualification, 1500W surge capability, and DO-201 robustness-making it the only choice for ISO 7637-2-compliant automotive power rail protection where reliability under repeated transients is mandatory.
Availability
1.5KE6.8AHR0G is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, LED driver output safeguarding, and DC-DC converter input surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE6.8AHR0G 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, serving global automotive, industrial, and computing markets since 1979.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and robust DO-201 packaging for thermal and mechanical durability.
FAQ
What does the 'H' suffix in 1.5KE6.8AHR0G indicate?
The 'H' suffix in 1.5KE6.8AHR0G denotes AEC-Q101 qualification, confirming that the 1.5KE6.8AHR0G has passed rigorous automotive-grade stress tests-including high-temperature operating life, temperature cycling, and ESD-required for under-hood and safety-critical vehicle subsystems.
Is 1.5KE6.8AHR0G unidirectional or bidirectional?
The 1.5KE6.8AHR0G is a unidirectional TVS diode, as confirmed by its single cathode band marking, 6.45–7.14V breakdown range at 10mA, and specification of forward voltage (VF = 3.5V @ 50A). Bidirectional variants in the same family use 'CA' suffixes (e.g., 1.5KE6.8CA).
What is the maximum clamping voltage of 1.5KE6.8AHR0G and at what current is it specified?
The maximum clamping voltage of 1.5KE6.8AHR0G is 10.5V, measured at 17A peak pulse current under the standard 10/1000μs waveform. This value ensures protected circuitry remains below critical overvoltage thresholds during high-energy transients.
Can 1.5KE6.8AHR0G be used in place of 1.5KE6.8A?
Yes-1.5KE6.8AHR0G is functionally identical to 1.5KE6.8A in electrical parameters and DO-201 packaging, but adds AEC-Q101 qualification and green (halogen-free) compound (R0G suffix). The 1.5KE6.8AHR0G is a drop-in replacement where automotive reliability is required.
What standards does 1.5KE6.8AHR0G meet for automotive transient immunity?
The 1.5KE6.8AHR0G meets ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a (battery disconnect), Pulse 2b (alternator load dump), Pulse 3a (capacitive coupling), and Pulse 3b (power line noise), as explicitly stated in the official Taiwan Semiconductor documentation for the 1.5KE series.
1.5KE6.8AHR0G 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:
- 1
- Bidirectional Channels:
- -
- 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
1.5KE6.8AHR0G FAQ
1.How can I place an order for 1.5KE6.8AHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8AHR0G 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 1.5KE6.8AHR0G reliable?
The price and inventory of 1.5KE6.8AHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8AHR0G is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8AHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8AHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8AHR0G?
1.5KE6.8AHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8AHR0G 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 1.5KE6.8AHR0G?
For technical support, including 1.5KE6.8AHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8AHR0G requirements.
6.How does Aetrix verify that 1.5KE6.8AHR0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8AHR0G 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 1.5KE6.8AHR0G meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8AHR0G?
All 1.5KE6.8AHR0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8AHR0G, 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 1.5KE6.8AHR0G part is unused and in its original packaging.
Return procedure for 1.5KE6.8AHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8AHR0G Tags
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