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Taiwan Semiconductor Corporation 1.5KE6.8A B0G
- Part No.:
- 1.5KE6.8A B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8A B0G.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,794
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Product details
Overview
1.5KE6.8A B0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 6.8V, clamping voltage of 10.5V at 1000A peak impulse current, working stand-off voltage of 5.80V, and operates across –55°C to +175°C junction temperature range. It is used in automotive ECU power input stages to absorb ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE6.8A B0G datasheet, 1.5KE6.8A B0G pinout, 1.5KE6.8A B0G application, or 1.5KE6.8A B0G equivalent, key selection criteria include clamping performance under 10/1000μs surge, low leakage (<1μA above 10V), DO-201 package thermal derating behavior, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This unidirectional TVS diode uses an avalanche breakdown mechanism to clamp transient overvoltages before they damage downstream ICs. Its 10.5V clamping voltage at 1000A IPP ensures robust protection for 5V logic interfaces and microcontroller I/O pins during load dump or inductive switching events.
The device exhibits fast response time (<1.0ps from 0V to VBR), low dynamic impedance, and meets ISO 7637-2 immunity requirements for automotive electronics. Its DO-201 package supports mounting on 16mm × 16mm copper pads for thermal management up to 5W steady-state dissipation at TL = 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10mA | 6.45–7.14V - Ensures reliable turn-on before 5.8V-rated circuits exceed safe operating limits |
| VWM | 5.80V - Maximum continuous reverse voltage without significant leakage; compatible with 5V systems |
| VC @ IPP = 1000A | 10.5V - Clamped voltage during 10/1000μs surge; protects 5V logic against destructive overvoltage |
| IPP Max | 1000A - Peak impulse current handling capacity per JEDEC test waveform; defines surge energy absorption |
| PPK | 1500W - Peak pulse power rating at TA = 25°C; derates linearly above ambient temperature |
| ID @ VWM | <1μA - Ultra-low blocking leakage preserves battery life in always-on automotive modules |
| TJ Range | –55°C to +175°C - Enables operation in engine bay and under-hood environments |
Pinout & Package
Package: DO-201 axial leaded package with cathode band marking; RoHS-compliant pure tin plating; UL 94V-0 molding compound; 0.090g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line; conducts during overvoltage to shunt current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 1500W surge capability | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without degradation |
| <1.0ps response time | Clamps faster than most microcontroller I/O propagation delays, preventing latch-up or gate oxide damage |
| AEC-Q101 qualified option | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low dynamic impedance | Minimizes voltage overshoot during fast-rising transients like EFT bursts (IEC 61000-4-4) |
| Halogen-free construction | Complies with IEC 61249-2-21; supports environmentally regulated automotive supply chains |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting engine control unit (ECU) 5V power rail from load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of LDO regulators and MCU power pins. Use Value: Limits voltage to ≤10.5V during 1000A surges, preventing permanent damage to 5V-rated silicon. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance front-end protector on 4–20mA or 0–10V signal lines. Use Value: Sub-1μA leakage avoids signal offset errors; fast clamping preserves measurement integrity. |
| LED Driver Overvoltage Suppression | Communication Port EFT Immunity |
Use Scenario: Safeguarding constant-current LED driver ICs in automotive lighting modules from inductive kickback. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output terminals to absorb flyback energy. Use Value: 1500W rating handles repetitive switching surges; DO-201 package enables compact PCB layout near connectors. | Use Scenario: Enhancing immunity of CAN or LIN bus transceivers to electrical fast transients (EFT). IC Role / Device Role / Timing Role: Bidirectional protection not applicable here; this unidirectional part used on VCC or ground-referenced lines only. Use Value: 5.80V VWM aligns with 5V CAN transceiver supply rails; clamps noise before it couples into data paths. |
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 53.3A IPP | Lower surge capacity; better suited for board-level secondary protection rather than primary rail clamping | Select when space-constrained layouts require SMD mounting and surge energy is ≤600W |
| 1.5SMC6.8A | DO-214AB package; same 1500W rating; 10.5V clamping at 1000A; slightly higher VBR min (6.46V) | Identical protection level but larger footprint; higher thermal mass improves long-pulse handling | Choose when DO-201 axial leads are incompatible with automated assembly or vibration requirements demand mechanical robustness |
Compared with SMBJ6.8A, 1.5KE6.8A B0G delivers 2.5× higher surge energy handling in axial form; versus 1.5SMC6.8A, it offers identical clamping performance in a smaller DO-201 body with proven automotive qualification history.
Availability
1.5KE6.8A B0G is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, LED lighting drivers, and communication interface protection requiring stable component supply across extended temperature ranges and high-reliability certifications.
Supply support for 1.5KE6.8A B0G 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 MOSFETs for automotive, industrial, and consumer markets.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh automotive environments, emphasizing AEC-Q101 compliance, wide temperature operation, and repeatable clamping performance under ISO 7637-2 stress conditions.
FAQ
What is the clamping voltage of the 1.5KE6.8A B0G under a 1000A 10/1000μs surge?
The 1.5KE6.8A B0G clamps to a maximum of 10.5V when subjected to a 1000A peak impulse current with a 10/1000μs waveform. This value is measured per JEDEC standard test conditions and ensures compatibility with 5V logic systems by limiting overvoltage exposure well below destructive thresholds. The 1.5KE6.8A B0G maintains this clamping performance across its full operating temperature range.
Is the 1.5KE6.8A B0G AEC-Q101 qualified?
The 1.5KE6.8A B0G is not AEC-Q101 qualified; only variants marked with "H" suffix (e.g., 1.5KE6.8AH) carry that qualification. The "B0G" suffix indicates green compound and tape-and-reel packaging per ordering code conventions. For automotive applications requiring AEC-Q101 validation, specify 1.5KE6.8AH instead of 1.5KE6.8A B0G.
What does the "B0G" suffix mean in 1.5KE6.8A B0G?
The "B0G" suffix in 1.5KE6.8A B0G denotes green molding compound (G) and a specific date/batch code format (B0). It does not indicate AEC-Q101 qualification or alternate electrical characteristics. The core electrical specs-including VBR, VC, and PPK-remain identical to the base 1.5KE6.8A part. The 1.5KE6.8A B0G retains full compliance with RoHS and halogen-free standards.
Can the 1.5KE6.8A B0G be used in bidirectional configurations?
No, the 1.5KE6.8A B0G is a unidirectional TVS diode and must not be used for bidirectional protection. Bidirectional operation requires CA-suffixed parts (e.g., 1.5KE6.8CA). Using 1.5KE6.8A B0G in reverse-biased mode risks catastrophic failure due to lack of symmetrical avalanche structure. Always verify polarity marking and circuit topology before integrating the 1.5KE6.8A B0G.
What is the maximum steady-state power dissipation for the 1.5KE6.8A B0G?
The 1.5KE6.8A B0G has a steady-state power dissipation rating of 5W when mounted on a 16mm × 16mm copper pad at lead temperature (TL) = 75°C. This rating assumes proper PCB thermal design; derating is required above 75°C per the pulse derating curve in the datasheet. The 1.5KE6.8A B0G is intended for transient suppression-not continuous power handling-and should not be operated near this limit in normal use.
1.5KE6.8A B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Bulk
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE6.8A B0G FAQ
1.How can I place an order for 1.5KE6.8A B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8A B0G 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 1.5KE6.8A B0G reliable?
The price and inventory of 1.5KE6.8A B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8A B0G is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8A B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8A B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8A B0G?
1.5KE6.8A B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8A B0G 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 1.5KE6.8A B0G?
For technical support, including 1.5KE6.8A B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8A B0G requirements.
6.How does Aetrix verify that 1.5KE6.8A B0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8A B0G 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 1.5KE6.8A B0G meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8A B0G?
All 1.5KE6.8A B0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8A B0G, 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 1.5KE6.8A B0G part is unused and in its original packaging.
Return procedure for 1.5KE6.8A B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8A B0G Tags
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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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