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Vishay General Semiconductor - Diodes Division P6KE6.8C-E3/73
- Part No.:
- P6KE6.8C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8C-E3/73.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,890
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Product details
Overview
P6KE6.8C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection on signal and power lines. It features a 6.8 V breakdown voltage (VBR min = 6.45 V), 5.8 V stand-off voltage (VWM), 10.5 V clamping voltage (VC) at 57.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the P6KE6.8C-E3/73 datasheet, P6KE6.8C-E3/73 pinout, P6KE6.8C-E3/73 application, or P6KE6.8C-E3/73 equivalent, this device serves as a standardized, AEC-Q101-qualified transient suppressor for bi-directional DC rail and data-line protection where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.55), and DO-15 package compatibility are critical selection criteria.
Technical Context
The P6KE6.8C-E3/73 implements a glass-passivated silicon junction optimized for bi-directional transient suppression without polarity marking. Its clamping behavior is defined by avalanche breakdown in both directions, with thermal resistance RθJL = 20 °C/W enabling reliable surge handling up to 100 A (8.3 ms half-sine) under proper lead temperature control.
It operates across –55 °C to +175 °C junction temperature range and exhibits 0.057 %/°C temperature coefficient of VBR, ensuring stable threshold drift in automotive under-hood environments. The device meets UL 497B recognition (QVGQ2) and complies with JESD22-B106 soldering standards (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise avalanche initiation window for repeatable clamping onset |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 1000 µA |
| VC @ IPPM | 10.5 V at 57.1 A (10/1000 µs) - limits protected circuit voltage during worst-case surge |
| PPPM | 600 W - supports high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in 12 V automotive systems |
| IPPM | 57.1 A - peak surge current capability directly determines minimum series impedance required for safe operation |
| TJ max | +175 °C - enables placement near heat-generating components without derating in engine-control units |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.300" lead spacing, UL 94 V-0 molded epoxy |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, non-polarized bi-directional device with no cathode marking; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either terminal serves as input/output - no polarity dependency; connects inline with protected line |
| Lead 1 / Lead 2 | Current path terminals | Must be mounted with ≥0.375" (9.5 mm) lead length outside PCB for thermal derating per Fig. 5 |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 3 (1 kV/42 Ω) surges on 5–12 V rails |
| Clamping voltage ≤10.5 V at 57.1 A | Keeps downstream 5 V logic ICs (e.g., microcontrollers, CAN transceivers) within absolute maximum ratings during surge |
| AEC-Q101 qualified (HE3 variant); E3 is commercial grade | P6KE6.8C-E3/73 is RoHS-compliant commercial version; HE3 suffix denotes automotive-qualified variant |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| UL 497B recognized (QVGQ2) | Validates suitability for telecom/data line protection in certified end equipment without additional system-level testing |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Module |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point, shunting surge energy before reaching ADC front-end or signal conditioner. Use Value: Limits transient voltage to ≤10.5 V, preventing latch-up or gate oxide damage in 5 V rail-connected op-amps and SAR ADCs. |
Use Scenario: Safeguarding 24 V digital input channels in PLC I/O cards exposed to relay coil flyback and field-wiring ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS in parallel with optocoupler input, conducting only during >5.8 V excursions while maintaining normal-state isolation. Use Value: Clamps 1 kV/42 Ω surges to <12 V, preserving optocoupler CTR and enabling direct interface with 3.3 V/5 V logic without level-shifting. |
| Telecom Data Line Protection | Consumer USB Port ESD Suppression |
|
Use Scenario: Shielding RS-485 transceiver bus lines (A/B) in base station remote units from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bi-directional TVS pair (one per line) referenced to ground, activated symmetrically during differential or common-mode overvoltage. Use Value: Achieves <1 ns response and sub-11 V clamping, meeting ITU-T K.21 Basic Protection Level for outdoor telecom infrastructure. |
Use Scenario: Adding secondary surge margin to USB 2.0 VBUS and D+/D− lines in set-top boxes subjected to user-handling ESD and adapter surge. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 1000 pF at 0 V) bi-directional clamp placed after primary polymer PTC, absorbing residual energy post-fuse activation. Use Value: Maintains signal integrity up to 480 Mbps while suppressing ±15 kV contact ESD per IEC 61000-4-2 without data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8CA | Same VBR (6.45–7.14 V) and VC (10.5 V), but SMC package (higher IPPM = 64.1 A) and lower RθJA (40 °C/W vs. 75 °C/W) | Better thermal performance in high-density layouts; requires PCB footprint change from DO-15 to SMC | Select SMBJ6.8CA when board space allows SMC and higher surge repetition rate is needed |
| 1.5KE6.8C | Identical electrical specs (VBR, VC, PPPM), but larger DO-201AD package (1.5 kW rating headroom) and higher IFSM (200 A vs. 100 A) | Higher mechanical robustness for high-vibration environments; longer leads complicate automated assembly | Choose 1.5KE6.8C for industrial motor drives where mechanical shock resistance outweighs size constraints |
Compared with SMBJ6.8CA and 1.5KE6.8C, the P6KE6.8C-E3/73 offers optimal cost–size balance for consumer and mid-tier automotive applications using through-hole assembly, while retaining full bi-directional compliance and UL recognition without requiring layout redesign.
Availability
P6KE6.8C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O modules, telecom data line protection, and consumer USB port surge suppression requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE6.8C-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series was engineered for cost-sensitive, high-volume transient suppression in commercial and automotive electronics - delivering standardized 600 W surge capability in the compact DO-15 package with AEC-Q101 qualification path.
FAQ
What is the key difference between P6KE6.8C-E3/73 and P6KE6.8A-E3/73?
The "C" suffix in P6KE6.8C-E3/73 denotes bi-directional configuration, while "A" indicates uni-directional. P6KE6.8C-E3/73 has no polarity marking and clamps symmetrically in both directions, making it suitable for AC-coupled or floating signal lines; P6KE6.8A-E3/73 includes a cathode band and conducts only in reverse bias, requiring correct orientation in DC circuits. Both share identical VBR, VC, and PPPM ratings.
Does P6KE6.8C-E3/73 meet AEC-Q101 qualification?
No - P6KE6.8C-E3/73 carries the "E3" suffix, indicating RoHS-compliant commercial grade per JESD201 Class 1A whisker testing. The AEC-Q101-qualified version is designated P6KE6.8CHE3/73 (with "HE3" suffix). While P6KE6.8C-E3/73 shares identical electrical and mechanical specs, only the HE3 variant is certified for automotive under-hood use per AEC-Q101 stress test requirements.
What is the maximum allowable lead temperature during soldering for P6KE6.8C-E3/73?
The P6KE6.8C-E3/73 supports solder dip at 275 °C maximum for 10 seconds, per JESD22-B106. This applies to wave soldering or manual tinning; reflow profiles must stay within JEDEC J-STD-020 limits for DO-15 packages. Exceeding 275 °C or extending dwell time risks epoxy cracking or junction degradation, compromising clamping consistency and leakage performance.
How does the clamping voltage VC = 10.5 V translate to system-level protection for a 5 V microcontroller?
The P6KE6.8C-E3/73 clamps to 10.5 V at 57.1 A, which - when combined with appropriate series impedance (e.g., 10 Ω current-limiting resistor) - ensures the voltage seen by the 5 V microcontroller stays below its absolute maximum rating (typically 6.5–7 V). For example, with 10 Ω in series, the microcontroller experiences only ~10.5 V − (57.1 A × 10 Ω) = negative drop, confirming the resistor must be sized to limit current so that VMCU = VC − IPPM × Rseries ≤ 6.5 V - typically requiring Rseries ≥ 70 Ω for full 57.1 A conduction.
Can P6KE6.8C-E3/73 be used for ESD protection per IEC 61000-4-2?
Yes - the P6KE6.8C-E3/73 responds in <1 ns and clamps ±8 kV contact ESD to <12 V, satisfying IEC 61000-4-2 Level 4 system-level immunity when properly laid out with short traces and low-inductance grounding. However, for dedicated ESD-only protection, lower-capacitance devices (e.g., 100–200 pF) are preferred on high-speed lines; P6KE6.8C-E3/73 is best applied where combined ESD/surge robustness is required, such as industrial fieldbus connectors or automotive body-control module inputs.
P6KE6.8C-E3/73 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE6.8C-E3/73 FAQ
1.How can I place an order for P6KE6.8C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8C-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 P6KE6.8C-E3/73 reliable?
The price and inventory of P6KE6.8C-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 P6KE6.8C-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE6.8C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8C-E3/73?
P6KE6.8C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8C-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 P6KE6.8C-E3/73?
For technical support, including P6KE6.8C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8C-E3/73 requirements.
6.How does Aetrix verify that P6KE6.8C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8C-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 P6KE6.8C-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE6.8C-E3/73?
All P6KE6.8C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8C-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 P6KE6.8C-E3/73 part is unused and in its original packaging.
Return procedure for P6KE6.8C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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