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Diodes Incorporated 1.5KE6.8A-T-F
- Part No.:
- 1.5KE6.8A-T-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8A-T-F.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
1.5KE6.8A-T-F from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 5.80V reverse standoff voltage (VRWM), 6.45V minimum breakdown voltage (VBR), 10.5V maximum clamping voltage (VC) at 143A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE6.8A-T-F datasheet, 1.5KE6.8A-T-F pinout, 1.5KE6.8A-T-F application, or 1.5KE6.8A-T-F equivalent, key selection criteria include clamping performance under 1.0ms 1500W pulses, temperature coefficient of VBR (0.057%/°C), RoHS-compliant lead-free finish, and axial-leaded DO-201 mechanical compatibility with high-reliability industrial and automotive PCB layouts.
Technical Context
This unidirectional TVS diode uses glass-passivated silicon junction technology to achieve fast response time (<1.0ps) and stable clamping during ESD, lightning-induced surges, and inductive switching transients. Its 1.0mA test current (IT) and 1000μA reverse leakage (IR) at VRWM ensure low standby power loss in protected circuits.
The device is rated for 200A non-repetitive forward surge current (IFSM) and dissipates 5.0W steady-state power at TL = 75°C with 9.5mm lead length. Its voltage-temp coefficient (0.057%/°C) enables predictable clamping shift across wide ambient ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at tP = 1.0ms - sustains single high-energy transients without failure |
| Reverse Standoff Voltage (VRWM) | 5.80V - maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 6.45V min @ IT = 10mA - precise triggering threshold for overvoltage events |
| Clamping Voltage (VC) | 10.5V max @ IPP = 143A - limits downstream component stress during surge |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and industrial environments |
| VBR Tempco | 0.057%/°C - enables accurate clamping voltage prediction across temperature |
| Package | DO-201 - axial-leaded, epoxy-molded, UL 94V-0 rated for board-level reliability |
Pinout & Package
DO-201 package: axial-leaded, transfer-molded epoxy body, 1.12g weight, tin-finished leads solderable per MIL-STD-202 Method 208. Cathode band identifies polarity on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; carries surge current to reference plane |
| Cathode | High-side connection point | Connected to protected line; blocks normal operation voltage, conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR and low leakage over lifetime and thermal cycling |
| 1500W peak pulse rating | Protects against IEC 61000-4-5 Level 4 (4kV/2Ω) surges without degradation |
| RoHS-compliant, halogen-free finish | Meets automotive and industrial environmental compliance requirements (Br+Cl <1500ppm, Sb <1000ppm) |
| Fast response time | Sub-nanosecond turn-on prevents transient propagation to sensitive ICs |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 5V/12V microcontroller supply rails against load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping element placed directly at power entry point before LDO regulators. Use Value: Limits rail voltage to ≤10.5V during 143A surges, preventing MCU brownout or latch-up. | Use Scenario: Safeguarding LIN bus transceiver I/O pins from ESD and battery disconnect spikes. IC Role / Device Role / Timing Role: Unidirectional shunt clamp on LIN data line referenced to vehicle chassis ground. Use Value: Clamps transients within 1ns while maintaining <1000μA leakage at 5.8V nominal bus voltage. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Overvoltage suppression on 48V PoE midspan injector outputs. IC Role / Device Role / Timing Role: Secondary protection stage after primary MOV, absorbing residual energy. Use Value: Delivers precise 10.5V clamping with minimal capacitance to preserve 100BASE-TX signal integrity. | Use Scenario: DC-link surge protection in solar string combiner boxes exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected TVS array on PV input terminals to divert common-mode transients. Use Value: Withstands repeated 1500W pulses without parameter drift, validated per IEC 61643-31. |
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 | Lower peak power (600W), smaller SMB package, 10.5V VC at 62A IPP | Better suited for space-constrained consumer PCBs; insufficient for 1500W industrial surges | Select when board area is critical and surge energy is ≤600W |
| 1N6267A | Same DO-201 package, 1500W rating, but higher VC (11.2V) and wider VBR tolerance (6.08–7.48V) | Acceptable where 0.7V higher clamping is tolerable and tighter VBR spec is not required | Choose for legacy design continuity where Diodes' tighter 6.45–7.14V VBR range is unnecessary |
Compared with SMBJ6.8A and 1N6267A, the 1.5KE6.8A-T-F provides superior clamping precision (±4.5% VBR), lower temperature coefficient, and guaranteed 1500W capability in the industry-standard DO-201 form factor-making it optimal for high-reliability industrial and automotive front-end protection.
Availability
1.5KE6.8A-T-F is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feeds requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE6.8A-T-F 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product qualification per AEC-Q101.
The 1.5KE series is part of Diodes' transient voltage suppressor portfolio, engineered specifically for robust, high-energy surge protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the difference between 1.5KE6.8A-T-F and 1.5KE6.8CA-T-F?
The "A" suffix denotes unidirectional operation with cathode band marking; "CA" indicates bidirectional configuration with no polarity marking. The 1.5KE6.8A-T-F clamps only positive transients relative to ground, while the CA version protects both polarities. Their VRWM (5.80V), VBR (6.45V min), and VC (10.5V) are identical under specified test conditions.
Is 1.5KE6.8A-T-F compliant with AEC-Q101?
No-this specific part is not AEC-Q101 qualified. While Diodes offers AEC-Q101 versions in the 1.5KE family (e.g., 1.5KE6.8A-Q), the -T-F variant is standard industrial grade. For automotive applications requiring PPAP or change control, contact Diodes' automotive team for qualified alternatives.
Can 1.5KE6.8A-T-F be used in parallel for higher surge handling?
Not recommended without derating and matching. Variations in VBR (6.45–7.14V) cause uneven current sharing. If higher IPP is needed, use a single higher-rated device (e.g., 1.5KE7.5A) or consult Diodes' application note AN-2001 for parallel layout guidelines and derating factors.
What does the "-T-F" suffix indicate in the part number?
"-T" specifies 13-inch tape-and-reel packaging (1000 pcs/reel); "-F" denotes Diodes' green, halogen- and antimony-free formulation meeting RoHS 3 (2015/863/EU) with Br+Cl <1500ppm and Sb <1000ppm. It replaces legacy leaded or brominated epoxy variants.
1.5KE6.8A-T-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- 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):
- 143A
- 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-T-F FAQ
1.How can I place an order for 1.5KE6.8A-T-F through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8A-T-F 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-T-F reliable?
The price and inventory of 1.5KE6.8A-T-F 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-T-F is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8A-T-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8A-T-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8A-T-F?
1.5KE6.8A-T-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8A-T-F 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-T-F?
For technical support, including 1.5KE6.8A-T-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8A-T-F requirements.
6.How does Aetrix verify that 1.5KE6.8A-T-F is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8A-T-F 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-T-F meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8A-T-F?
All 1.5KE6.8A-T-F units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8A-T-F, 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-T-F part is unused and in its original packaging.
Return procedure for 1.5KE6.8A-T-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8A-T-F Tags
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ESD9B5.0ST5G
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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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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