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Vishay General Semiconductor - Diodes Division 1.5KE6.8C-E3/73
- Part No.:
- 1.5KE6.8C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6.8C-E3/73.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,610
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Product details
Overview
1.5KE6.8C-E3/73 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for clamping inductive and lightning-induced transients on signal and power lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 1500 W peak pulse power (10/1000 µs), 10.5 V maximum clamping voltage at 143 A, and operates from –55 °C to +175 °C. It is used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE6.8C-E3/73 datasheet, 1.5KE6.8C-E3/73 pinout, 1.5KE6.8C-E3/73 application, or 1.5KE6.8C-E3/73 equivalent, this page delivers verified electrical specs, JEDEC 1.5KE package details, bidirectional clamping behavior, thermal derating curves, and RoHS-compliant commercial-grade sourcing guidance.
Technical Context
This device implements an avalanche breakdown junction architecture optimized for sub-nanosecond response (<1 ns) to fast-rising transients. Its bidirectional configuration enables symmetrical clamping across both polarities without external polarity management, supporting protection of AC-coupled or differential signal paths.
It complies with JEDEC standard test conditions for 10/1000 µs waveform surge immunity and meets UL 497B recognition (QVGQ2). The glass-passivated chip junction ensures stable VBR tolerance (±5%) and low incremental surge resistance-critical for consistent clamping under repetitive surges up to 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 5.80 V - maximum continuous working voltage before leakage exceeds 1000 µA |
| VC @ IPPM | 10.5 V at 143 A - actual clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak surge power handling capability per 10/1000 µs waveform |
| IPPM | 143 A - maximum non-repetitive surge current the device safely clamps |
| TJ range | –55 °C to +175 °C - enables operation in under-hood automotive and industrial ambient environments |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, through-hole mountable with 0.375" lead length |
Pinout & Package
1.5KE6.8C-E3/73 uses the JEDEC DO-201AD axial package (Case Style 1.5KE), with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking - bidirectional symmetry eliminates cathode/anode identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals behave identically under positive or negative overvoltage - no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity |
| 1500 W peak pulse power | Handles high-energy transients from inductive switching or lightning surges without failure |
| <1 ns response time | Clamps before sensitive ICs experience damaging overvoltage-critical for protecting microcontrollers and sensors |
| UL 497B recognized (QVGQ2) | Validated for telecom and industrial surge protection systems requiring safety agency approval |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance - suitable for high-reliability commercial applications |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Limits transient voltage to ≤10.5 V during 143 A surges, preventing latch-up or gate oxide damage in downstream ASICs and MCUs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, operating in parallel with filter capacitors to absorb repetitive 10/1000 µs transients. Use Value: Sustains 1500 W peak power without degradation, enabling >100,000 surge cycles in factory automation environments. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-level protection on POTS or DSL line interface circuits subjected to induced lightning surges per ITU-T K.20. IC Role / Device Role / Timing Role: Fast-acting bidirectional clamp between tip/ring lines and ground, coordinated with gas discharge tube (GDT) primary protection. Use Value: Sub-ns response captures residual surges after GDT firing, reducing let-through voltage to safe levels for line driver ICs. | Use Scenario: Input-stage transient suppression in wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Standalone surge limiter across bridge rectifier output, clamping switch-mode power supply input transients. Use Value: Maintains 5.8 V working voltage margin below 6.8 V VBR, ensuring no conduction during normal 5–12 V DC operation while reacting instantly to spikes. |
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 | Lower PPPM (600 W), smaller SMB package (surface-mount), lower IPPM (62.7 A) | Best suited for space-constrained PCBs where 600 W surge rating suffices | Select when board area is limited and peak surge energy is ≤600 W; not drop-in due to different package and power rating |
| 1.5KE6.8CA | Same 1.5KE package, identical VBR/VC, but lacks E3 RoHS compliance and JESD 201 whisker testing | Acceptable for legacy industrial designs where RoHS and whisker resistance are not mandated | Choose only if E3 suffix requirements (e.g., automotive Tier 1 compliance) do not apply |
Compared with 1.5KE6.8C-E3/73, SMBJ6.8CA trades 1500 W capability and through-hole robustness for compactness, while 1.5KE6.8CA retains mechanical compatibility but omits modern reliability certifications-making the E3/73 version optimal for new designs requiring full RoHS and AEC-Q101-aligned quality.
Availability
1.5KE6.8C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and full traceability.
Supply support for 1.5KE6.8C-E3/73 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and long-term parametric stability are mandatory.
FAQ
What is the breakdown voltage tolerance of the 1.5KE6.8C-E3/73?
The 1.5KE6.8C-E3/73 has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, representing a ±5% tolerance around the nominal 6.8 V rating. This tight tolerance ensures predictable clamping onset across production lots and supports reliable system-level overvoltage margining in designs using the 1.5KE6.8C-E3/73.
Is the 1.5KE6.8C-E3/73 unidirectional or bidirectional?
The 1.5KE6.8C-E3/73 is a bidirectional TVS diode, indicated by the "C" suffix in its part number. It provides symmetrical clamping for both positive and negative transients without polarity sensitivity-ideal for protecting AC-coupled lines, differential buses, or any circuit where voltage reversals may occur. No color band marking is present, confirming its bidirectional construction.
What is the maximum clamping voltage of the 1.5KE6.8C-E3/73 under surge conditions?
The 1.5KE6.8C-E3/73 exhibits a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current of 143 A (10/1000 µs waveform). This value represents the highest voltage that will appear across the device during a full 1500 W transient event, directly determining the overvoltage stress imposed on downstream components protected by the 1.5KE6.8C-E3/73.
Does the 1.5KE6.8C-E3/73 meet automotive qualification standards?
The 1.5KE6.8C-E3/73 is RoHS-compliant (E3 suffix) and qualified to JESD 201 Class 1A for whisker resistance, but it is not AEC-Q101 qualified. AEC-Q101 variants carry the HE3 suffix (e.g., 1.5KE6.8CAHE3_B). For automotive applications requiring formal AEC-Q101 certification, the 1.5KE6.8C-E3/73 should be validated per customer-specific reliability requirements or replaced with the HE3-grade version.
What package type does the 1.5KE6.8C-E3/73 use, and what are its mounting requirements?
The 1.5KE6.8C-E3/73 uses the JEDEC DO-201AD axial package (Case Style 1.5KE), featuring 0.375" (9.5 mm) lead length and matte tin-plated leads. It is designed for through-hole mounting with standard wave or hand soldering. The device supports solder dip at 275 °C for up to 10 seconds per JESD 22-B106, and requires no polarity alignment due to its bidirectional symmetry.
1.5KE6.8C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 139A
- 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:
- 1.5KE
1.5KE6.8C-E3/73 FAQ
1.How can I place an order for 1.5KE6.8C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6.8C-E3/73 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 1.5KE6.8C-E3/73 reliable?
The price and inventory of 1.5KE6.8C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6.8C-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE6.8C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6.8C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6.8C-E3/73?
1.5KE6.8C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6.8C-E3/73 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 1.5KE6.8C-E3/73?
For technical support, including 1.5KE6.8C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6.8C-E3/73 requirements.
6.How does Aetrix verify that 1.5KE6.8C-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE6.8C-E3/73 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 1.5KE6.8C-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE6.8C-E3/73?
All 1.5KE6.8C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6.8C-E3/73, 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 1.5KE6.8C-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE6.8C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6.8C-E3/73 Tags
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