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Vishay General Semiconductor - Diodes Division P6KE6.8CHE3/73
- Part No.:
- P6KE6.8CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8CHE3/73.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,751
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Product details
Overview
P6KE6.8CHE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at IT = 10 mA), 5.8 V stand-off voltage (VWM), 10.5 V clamping voltage (VC at IPPM = 57.1 A), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the P6KE6.8CHE3/73 datasheet, P6KE6.8CHE3/73 pinout, P6KE6.8CHE3/73 application, or P6KE6.8CHE3/73 equivalent, this device is selected for cost-sensitive, AEC-Q101-qualified transient suppression where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.55), and DO-15 package compatibility with legacy PCB footprints are critical design requirements.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR. Its glass-passivated junction ensures stable leakage performance and robust surge handling up to 100 A IFSM (8.3 ms half-sine).
The device uses a planar silicon junction structure optimized for repetitive 10/1000 µs surges at 0.01% duty cycle. Thermal resistance is RθJL = 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = 175 °C - validated per AEC-Q101 stress test conditions including temperature cycling and HTRB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at IT = 10 mA - defines precise triggering threshold for overvoltage events |
| VWM | 5.8 V - maximum continuous reverse operating voltage before leakage exceeds 1000 µA |
| VC at IPPM | 10.5 V at 57.1 A - clamping voltage limiting downstream component stress during 600 W surge |
| PPPM | 600 W - peak pulse power handling capability with standard 10/1000 µs transient waveform |
| IPPM | 57.1 A - maximum non-repetitive peak pulse current supported without degradation |
| TJ max. | 175 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.300" lead spacing and UL 94 V-0 molding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Lead finish meets JESD 201 Class 2 whisker test (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive transients when used in reverse-biased configuration |
| Cathode (banded end) | Reverse-bias reference terminal | Connected to higher-potential rail (e.g., VCC); blocks normal operation but avalanches during overvoltage on protected node |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance (±5%), low leakage (<1000 µA at VWM), and long-term reliability under thermal cycling |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance in many designs |
| Clamping ratio VC/VBR ≈ 1.55 | Minimizes voltage overshoot during clamping - critical for protecting 5 V logic and microcontroller I/O pins |
| Fast response time (<1 ns) | Activates before sensitive components experience damaging overvoltage - essential for ESD and lightning-induced transients |
Applications
| Automotive Sensor Interface | Industrial PLC Input Module |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between signal line and ground or supply rail to clamp voltage excursions within safe limits. Use Value: Prevents latch-up or permanent damage to ASICs and microcontrollers by limiting transient voltage to ≤10.5 V during 57.1 A surges. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each input channel, positioned upstream of optocoupler or Schmitt trigger input stage. Use Value: Enables compliance with IEC 61000-4-4 (electrical fast transient) and IEC 61000-4-5 (surge) immunity requirements without adding active circuitry. |
| Consumer Power Adapter Output | Telecom Line Card Protection |
Use Scenario: Secondary-side overvoltage protection on 5 V/12 V outputs of AC-DC adapters used in set-top boxes and network routers. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across output capacitor to absorb residual switching spikes and hot-plug transients. Use Value: Maintains output regulation integrity by clamping transients below IC overvoltage lockout thresholds (e.g., <12 V for 5 V LDOs). |
Use Scenario: Front-end protection for Ethernet PHY interfaces and RS-485 transceivers on telecom base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage shunt suppressor on differential pairs, coordinated with GDT or polymer PTC for multi-stage protection. Use Value: Limits common-mode surge energy entering the PHY IC, reducing risk of dielectric breakdown in transformer-coupled isolation stages. |
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 | Same VBR range (6.45–7.14 V) but SMC (DO-214AB) surface-mount package; 600 W rating retained; lower RθJA (50 °C/W vs. 75 °C/W) | Requires PCB redesign for SMT placement; better thermal performance in high-density layouts; not axial-leaded drop-in replacement | Select SMBJ6.8A when board space is constrained and reflow assembly is available; avoid if through-hole manufacturing is fixed. |
| 1.5KE6.8A | Same DO-15 package and VBR, but higher PPPM = 1500 W; larger junction area; higher IPPM = 121 A; VF = 3.5 V at 50 A | Overqualified for 600 W needs; physically larger DO-201AD package; higher cost and footprint; same pinout but different mechanical envelope | Choose 1.5KE6.8A only when system-level surge testing exceeds IEC 61000-4-5 Level 4 or repeated high-energy transients are expected. |
Compared with SMBJ6.8A and 1.5KE6.8A, P6KE6.8CHE3/73 offers optimal balance of AEC-Q101 qualification, DO-15 axial compatibility, and 600 W surge capacity for cost-sensitive automotive and industrial applications - without requiring layout changes or over-engineering for typical load-dump profiles.
Availability
P6KE6.8CHE3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC input modules, and consumer power adapter outputs requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for P6KE6.8CHE3/73 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-effective, high-surge-capability overvoltage protection in automotive, industrial, and consumer power and signal lines.
FAQ
What is the meaning of the 'HE3' suffix in P6KE6.8CHE3/73?
The HE3 suffix in P6KE6.8CHE3/73 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. This distinguishes it from commercial-grade E3 variants and confirms suitability for automotive applications including engine control, body electronics, and ADAS sensor nodes where long-term reliability under thermal and mechanical stress is mandatory. The P6KE6.8CHE3/73 meets all stress tests defined in AEC-Q101 Rev D.
How does P6KE6.8CHE3/73 differ from P6KE6.8A-E3/73?
P6KE6.8CHE3/73 is AEC-Q101 qualified (HE3), while P6KE6.8A-E3/73 is commercial grade only (E3). Both share identical electrical specs - VBR = 6.45–7.14 V, VWM = 5.8 V, VC = 10.5 V - but the HE3 variant undergoes additional stress screening including temperature cycling, highly accelerated life testing (HALT), and unbiased HAST. The P6KE6.8CHE3/73 is intended for automotive under-hood and chassis applications where failure modes must be rigorously controlled.
Can P6KE6.8CHE3/73 be used in bi-directional configurations?
No - P6KE6.8CHE3/73 is strictly a uni-directional TVS diode, identified by its cathode band marking. Bi-directional operation requires the CA suffix (e.g., P6KE6.8CA). Using P6KE6.8CHE3/73 in reverse-biased AC applications would result in forward conduction during negative half-cycles, causing excessive power dissipation and potential failure. For bi-directional protection, select P6KE6.8CHE3/73's counterpart P6KE6.8CBE3/73 (if AEC-Q101 qualified bi-directional variant exists) or confirm availability of P6KE6.8CA-HE3.
What is the maximum allowable lead temperature during soldering for P6KE6.8CHE3/73?
The maximum solder dip temperature for P6KE6.8CHE3/73 is 275 °C for up to 10 seconds, per JESD 22-B106. This specification applies to wave soldering and hand-soldering processes. Exceeding this limit risks delamination of the epoxy mold compound or degradation of the glass-passivated junction. Reflow profiles are not applicable since P6KE6.8CHE3/73 is an axial-leaded through-hole device, not an SMT component.
Does P6KE6.8CHE3/73 meet UL 497B recognition?
Yes - P6KE6.8CHE3/73 carries Underwriters Laboratories recognition under UL 497B (QVGQ2) for protector classification, with file number E136766. This certification covers both uni-directional and bi-directional devices in the P6KE family and validates its use in telecommunications, industrial control, and automotive applications where safety agency approval is required for surge protection circuits. The UL recognition applies specifically to the DO-204AC package construction and material system used in P6KE6.8CHE3/73.
P6KE6.8CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, 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):
- 55.6A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE6.8CHE3/73 FAQ
1.How can I place an order for P6KE6.8CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8CHE3/73 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 P6KE6.8CHE3/73 reliable?
The price and inventory of P6KE6.8CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE6.8CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8CHE3/73?
P6KE6.8CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8CHE3/73 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 P6KE6.8CHE3/73?
For technical support, including P6KE6.8CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8CHE3/73 requirements.
6.How does Aetrix verify that P6KE6.8CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8CHE3/73 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 P6KE6.8CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE6.8CHE3/73?
All P6KE6.8CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8CHE3/73, 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 P6KE6.8CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE6.8CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8CHE3/73 Tags
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