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Vishay General Semiconductor - Diodes Division P4KE6.8AHE3/54
- Part No.:
- P4KE6.8AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE6.8AHE3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,525
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Product details
Overview
P4KE6.8AHE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor diode in DO-41 package, rated for 400 W peak pulse power (10/1000 μs), 6.45–7.14 V breakdown voltage at 10 mA, and 10.5 V clamping voltage at 38.1 A peak pulse current. It provides robust ESD and surge protection for low-voltage DC rails in automotive sensor interfaces and industrial control I/O circuits.
For engineers reviewing the P4KE6.8AHE3/54 datasheet, P4KE6.8AHE3/54 pinout, P4KE6.8AHE3/54 application, or P4KE6.8AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 5.8 V stand-off voltage, 1000 μA max reverse leakage at VWM, 175 °C max junction temperature, and DO-41 mechanical compatibility with legacy through-hole PCB layouts.
Technical Context
This device operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology to achieve sub-nanosecond response to transients. Its 66 °C/W junction-to-lead thermal resistance enables reliable power dissipation under repetitive surge conditions when mounted on standard PCB copper land patterns.
The P4KE6.8AHE3/54 exhibits a +0.057 %/°C temperature coefficient of breakdown voltage and maintains stable clamping performance across -55 °C to +175 °C operating range. Its matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 6.45 V / 7.14 V at 10 mA - defines precise avalanche initiation threshold for predictable overvoltage clamping |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 38.1 A - clamped voltage during 400 W 10/1000 μs surge, limiting downstream IC stress |
| IPPM | 38.1 A - peak surge current capability under standardized waveform, critical for IEC 61000-4-5 Level 3 compliance |
| TJ max | +175 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| Package | DO-41 (DO-204AL) - industry-standard axial leaded package with 0.350 g unit weight and 13" tape-and-reel delivery (5500 pcs) |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; cathode indicated by color band on body; matte tin-plated terminals solderable per J-STD-002; UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected circuit ground or low-side return; conducts during positive transients when used in reverse-biased configuration |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., 5 V rail); initiates breakdown when reverse voltage exceeds VBR, shunting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, low-drift VBR and long-term reliability under thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 1 kV open-circuit / 0.5 A short-circuit test levels |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive CMOS inputs |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and automotive material compliance requirements (Vishay doc# 99912) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 5 V supply lines feeding Hall-effect position sensors in engine management systems exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor VCC and chassis ground, clamping transients before they reach ASIC input regulators. Use Value: Maintains sensor uptime during 12 V system load dump events (ISO 7637-2 Pulse 5a) with <10.5 V clamping to prevent regulator latch-up. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controller (PLC) modules against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Standoff protector on optocoupler input side, absorbing energy from 1 kV/0.5 A IEC 61000-4-5 surges without degrading signal integrity. Use Value: Enables >100,000 surge cycles at rated power while preserving input threshold accuracy due to low leakage (<1000 μA at 5.8 V). |
| Consumer Power Adapter Output | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD adapter outputs susceptible to feedback loop failure or Zener regulator drift. IC Role / Device Role / Timing Role: Fail-safe clamp parallel to output capacitor, activating only during fault conditions exceeding 7.14 V. Use Value: Prevents connected devices from damage during sustained overvoltage events while remaining transparent during normal regulation (VWM = 5.8 V). |
Use Scenario: Primary protection for RS-485 transceiver VCC pins in base station backhaul equipment subjected to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: First-stage clamp on 3.3 V or 5 V supply rail, coordinated with GDT and series impedance for multi-level protection architecture. Use Value: Limits rail collapse to ≤10.5 V during 10/1000 μs surges, ensuring transceiver remains functional and avoids latch-up or permanent damage. |
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 | Surface-mount SMB package (vs. through-hole DO-41); same 6.45–7.14 V VBR, but 600 W PPPM rating and 12.7 V VC at 49.2 A | Requires PCB redesign for SMT placement; better suited for space-constrained consumer electronics vs. legacy industrial boards | Select SMBJ6.8A only when upgrading to automated assembly and higher surge margin is required |
| 1.5KE6.8A | Same DO-41 package but higher 1500 W PPPM rating; VBR 6.45–7.14 V, VC 10.5 V at 143 A; larger body size (DO-201AD) | Physically incompatible with P4KE6.8AHE3/54 footprint; intended for higher-energy surge environments like AC mains interfaces | Choose 1.5KE6.8A only when system-level testing confirms >400 W surge exposure and board layout allows larger package |
Compared with SMBJ6.8A and 1.5KE6.8A, the P4KE6.8AHE3/54 offers optimal balance of AEC-Q101 qualification, DO-41 drop-in compatibility, and 400 W surge handling for cost-sensitive automotive and industrial designs where PCB real estate and legacy manufacturing constraints apply.
Availability
P4KE6.8AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE6.8AHE3/54 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 automotive-grade validation.
The P4KE6.8AHE3/54 belongs to Vishay's TransZORB® TVS diode family, engineered specifically for cost-effective, high-volume transient suppression in automotive, industrial, and consumer power rails where AEC-Q101 compliance and DO-41 compatibility are mandatory.
FAQ
What is the maximum clamping voltage of the P4KE6.8AHE3/54 under surge conditions?
The P4KE6.8AHE3/54 has a maximum clamping voltage (VC) of 10.5 V at 38.1 A peak pulse current, measured using the standardized 10/1000 μs waveform. This value ensures downstream 5 V logic circuits remain within safe operating limits during transient events. The clamping performance is guaranteed across the full operating temperature range of -55 °C to +175 °C.
Is the P4KE6.8AHE3/54 suitable for automotive applications?
Yes, the P4KE6.8AHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction features glass-passivated junctions, matte tin-plated leads meeting JESD 201 Class 2 whisker resistance, and operation up to +175 °C junction temperature - all validated per automotive reliability test standards. It is commonly deployed in engine control units and ADAS sensor modules.
How does the HE3 suffix differ from the E3 suffix in P4KE6.8AHE3/54?
The HE3 suffix on P4KE6.8AHE3/54 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. In contrast, the E3 suffix denotes RoHS compliance only (commercial grade). Both share identical electrical characteristics and DO-41 packaging, but HE3 is mandatory for automotive and high-reliability industrial deployments.
What is the reverse leakage current specification for P4KE6.8AHE3/54 at its stand-off voltage?
At the maximum stand-off voltage (VWM) of 5.8 V, the P4KE6.8AHE3/54 exhibits a maximum reverse leakage current (ID) of 1000 μA at 25 °C. This low leakage ensures minimal power loss in always-on circuits and preserves battery life in automotive standby modes without compromising clamping responsiveness.
Can P4KE6.8AHE3/54 be used in bidirectional configurations?
No, the P4KE6.8AHE3/54 is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. Bidirectional variants require the "CA" suffix (e.g., P4KE6.8CA). Using P4KE6.8AHE3/54 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
P4KE6.8AHE3/54 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:
- Active
- 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):
- 38.1A
- 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)
P4KE6.8AHE3/54 FAQ
1.How can I place an order for P4KE6.8AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE6.8AHE3/54 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 P4KE6.8AHE3/54 reliable?
The price and inventory of P4KE6.8AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE6.8AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE6.8AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE6.8AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE6.8AHE3/54?
P4KE6.8AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE6.8AHE3/54 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 P4KE6.8AHE3/54?
For technical support, including P4KE6.8AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE6.8AHE3/54 requirements.
6.How does Aetrix verify that P4KE6.8AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE6.8AHE3/54 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 P4KE6.8AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE6.8AHE3/54?
All P4KE6.8AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE6.8AHE3/54, 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 P4KE6.8AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE6.8AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE6.8AHE3/54 Tags
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