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Vishay General Semiconductor - Diodes Division P4KE6.8CHE3/54
- Part No.:
- P4KE6.8CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE6.8CHE3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,199
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Product details
Overview
P4KE6.8CHE3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-41 package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features 6.45 V to 7.14 V breakdown voltage at 10 mA, 5.8 V stand-off voltage, 1000 μA max reverse leakage at VWM, 38.1 A peak pulse current (10/1000 μs), and 10.5 V clamping voltage at IPPM - used in automotive sensor protection and industrial power supply input stages.
For engineers reviewing the P4KE6.8CHE3/54 datasheet, P4KE6.8CHE3/54 pinout, P4KE6.8CHE3/54 application, or P4KE6.8CHE3/54 equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification, DO-41 mechanical compatibility, 400 W peak pulse power rating, and thermal resistance (RθJL = 66 °C/W) for board-level surge coordination.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.47) under 10/1000 μs surge conditions. Its unidirectional configuration enables cathode-referenced placement on DC rails, with polarity marked by a color band.
Designed for single-pulse transient suppression, it supports 40 A IFSM (8.3 ms half-sine) and derates linearly above 25 °C ambient per Fig. 2. Junction temperature range spans −55 °C to +175 °C, and thermal resistance to lead (RθJL = 66 °C/W) enables direct PCB trace heat sinking without heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 6.45 V / 7.14 V at IT = 10 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 5.8 V - maximum continuous reverse operating voltage before leakage exceeds 1000 μA |
| VC at IPPM | 10.5 V - clamped voltage during 38.1 A surge, limiting downstream IC stress to safe levels |
| PPPM | 400 W - peak power dissipation capability with 10/1000 μs waveform, enabling robust lightning/surge immunity |
| ID at VWM | 1000 μA - reverse leakage current at stand-off voltage, ensuring minimal standby power loss |
| TJ max | +175 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| RθJL | 66 °C/W - thermal resistance from junction to lead, allowing direct conduction cooling via PCB copper |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body. Leads conform to J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; enables cathode-to-rail clamping configuration |
| Cathode | High-side surge sink terminal | Connected to protected line (e.g., 5 V rail); absorbs transient energy into ground path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| 400 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge compliance when combined with appropriate series impedance |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving clamping fidelity |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance, suitable for high-reliability automotive and industrial assembly |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor supply rail and chassis ground to clamp transients before they reach precision analog ICs. Use Value: Limits clamped voltage to 10.5 V, preventing damage to 5 V-tolerant sensor ICs while maintaining AEC-Q101 qualification for under-hood deployment. |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs and DC-DC converter inputs against surges from motor drives or relay switching in factory automation systems. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12–24 V DC input rails, absorbing repetitive 400 W pulses without degradation. Use Value: Withstands 40 A IFSM (8.3 ms) and operates up to +175 °C, enabling use in sealed enclosures without forced air cooling. |
| Consumer USB Power Port | Telecom Line Interface |
Use Scenario: ESD and surge protection on 5 V USB VBUS lines in set-top boxes and smart home hubs exposed to human contact and nearby lightning-induced coupling. IC Role / Device Role / Timing Role: Cathode-connected to VBUS, anode to ground; activated within <1 ns to shunt ±15 kV HBM ESD events. Use Value: 1000 μA leakage at 5.8 V ensures no impact on USB suspend current budget; DO-41 footprint allows manual rework and automated placement. |
Use Scenario: Secondary-side transient suppression on low-voltage telecom signal lines (e.g., RS-485, Ethernet PHY bias rails) in base station remote units. IC Role / Device Role / Timing Role: Unidirectional clamping element on isolated 3.3 V or 5 V bias supplies feeding communication ICs. Use Value: 66 °C/W RθJL enables thermal coupling to ground plane, sustaining repeated 10/1000 μs surges without thermal runaway in compact modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | DO-214AA package, 600 W PPPM, lower RθJA (50 °C/W), higher IPPM (64.5 A) | Requires larger PCB footprint; better suited for higher-energy surges where space permits | Select SMBJ6.8A when system-level surge tests exceed IEC 61000-4-5 Level 4 or when higher peak current margin is required |
| 1N6267A | Same DO-41 package, 400 W PPPM, but commercial-grade (non-AEC-Q101), higher VBR tolerance (±10 % vs ±5 %) | Lacks automotive qualification and tighter parametric control; limited to non-safety-critical consumer/industrial use | Choose 1N6267A only for cost-sensitive, non-automotive designs where AEC-Q101 and tight VBR are not mandated |
Compared with SMBJ6.8A and 1N6267A, P4KE6.8CHE3/54 uniquely combines AEC-Q101 qualification, DO-41 form factor, and ±5 % VBR tolerance - making it optimal for space-constrained automotive modules requiring production traceability and thermal robustness without package redesign.
Availability
P4KE6.8CHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power input stages, and consumer USB port hardening requiring stable component supply across multi-year production cycles.
Supply support for P4KE6.8CHE3/54 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 P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and telecom infrastructure where repeatable clamping and long-term stability are critical.
FAQ
What is the polarity configuration of P4KE6.8CHE3/54?
P4KE6.8CHE3/54 is a unidirectional TVS diode, with cathode identified by a color band on the DO-41 body. It conducts only during reverse-biased overvoltage events, making it suitable for DC rail clamping where polarity is fixed. This differs from bidirectional variants (e.g., P4KE6.8CHE3/54CA) used in AC or differential signal lines.
Is P4KE6.8CHE3/54 qualified for automotive applications?
Yes, P4KE6.8CHE3/54 carries the HE3 suffix, indicating AEC-Q101 qualification per Vishay documentation. It has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD, confirming suitability for under-hood and ECU-mounted applications where reliability is mission-critical.
What is the clamping voltage of P4KE6.8CHE3/54 at its rated peak pulse current?
The clamping voltage (VC) of P4KE6.8CHE3/54 is 10.5 V at IPPM = 38.1 A (10/1000 μs waveform). This value is measured under standardized surge conditions and defines the maximum voltage imposed on protected circuitry during transient events - essential for verifying compatibility with downstream 5 V ICs.
How does the HE3 suffix differ from E3 in P4KE6.8CHE3/54?
The HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates RoHS compliance and JESD 201 Class 1A. For P4KE6.8CHE3/54, HE3 confirms automotive-grade process control, extended reliability testing, and enhanced plating integrity - critical for vibration-prone or high-temperature deployments.
Can P4KE6.8CHE3/54 be used in bidirectional signal lines like RS-485?
No, P4KE6.8CHE3/54 is unidirectional and unsuitable for AC or bidirectional data lines. For RS-485 or CAN bus protection, a bidirectional variant such as P4KE6.8CHE3/54CA must be selected - it provides symmetrical clamping in both polarities and lacks the cathode marking band found on P4KE6.8CHE3/54.
P4KE6.8CHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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):
- 37A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE6.8CHE3/54 FAQ
1.How can I place an order for P4KE6.8CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE6.8CHE3/54 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 P4KE6.8CHE3/54 reliable?
The price and inventory of P4KE6.8CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE6.8CHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE6.8CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE6.8CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE6.8CHE3/54?
P4KE6.8CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE6.8CHE3/54 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 P4KE6.8CHE3/54?
For technical support, including P4KE6.8CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE6.8CHE3/54 requirements.
6.How does Aetrix verify that P4KE6.8CHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE6.8CHE3/54 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 P4KE6.8CHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE6.8CHE3/54?
All P4KE6.8CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE6.8CHE3/54, 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 P4KE6.8CHE3/54 part is unused and in its original packaging.
Return procedure for P4KE6.8CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE6.8CHE3/54 Tags
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