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Vishay General Semiconductor - Diodes Division P4KE68-E3/54
- Part No.:
- P4KE68-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE68-E3/54.pdf
- Description:
- TVS DIODE 55.1VWM 98VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,256
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Product details
Overview
P4KE68-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features 64.6 V minimum breakdown voltage (VBR), 58.1 V maximum standoff voltage (VWM), 92.0 V clamping voltage at 4.3 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 μs waveform - deployed to safeguard MOSFET gates and sensor signal lines in automotive power supplies.
For engineers reviewing the P4KE68-E3/54 datasheet, P4KE68-E3/54 pinout, P4KE68-E3/54 application, or P4KE68-E3/54 equivalent, key selection criteria include verified clamping performance under 10/1000 μs transients, DO-41 leaded package compatibility with through-hole PCB layouts, unidirectional polarity marking (cathode band), and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This device operates as a silicon avalanche diode optimized for fast transient suppression: it triggers at ≥64.6 V (VBR min), clamps to ≤92.0 V at 4.3 A (IPPM), and exhibits <0.01 % duty cycle capability with 10/1000 μs waveform compliance. Its glass-passivated junction ensures stable leakage (<1.0 μA at 58.1 V) and low incremental surge resistance.
Thermal design is constrained by RθJA = 100 °C/W and TJ(max) = 175 °C, requiring lead-length-aware layout per JESD 22-B106 (275 °C solder dip, 10 s max). The cathode-band polarity marking enables unambiguous orientation during manual or automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA test current - defines precise avalanche initiation threshold for overvoltage detection |
| VWM | 58.1 V maximum - sets safe operating DC/AC voltage limit before leakage exceeds 1.0 μA |
| VC @ IPPM | 92.0 V at 4.3 A peak pulse - determines worst-case voltage seen by protected IC during 10/1000 μs surge |
| PPPM | 400 W - specifies maximum transient energy absorption without failure under standardized waveform |
| IFSM | 40 A at 8.3 ms half-sine - supports single-event inrush tolerance in power rail protection |
| TJ(max) | 175 °C - enables operation in under-hood automotive environments with validated thermal derating |
| Package | DO-41 (DO-204AL) - through-hole molded epoxy body with matte tin-plated leads, UL 94 V-0 rated |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, cylindrical epoxy body with cathode band marking on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 class 1A whisker test (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; forms current sink during clamping |
| Cathode (banded end) | High-side transient input terminal | Receives surge energy; reverse-biased during normal operation; avalanches when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and long-term leakage stability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in single-stage protection |
| AEC-Q101 qualified (E3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes let-through voltage to protect 60 V-rated MOSFETs and CAN transceivers |
| UL 94 V-0 molding compound | Meets flammability safety standards for enclosed industrial and automotive enclosures |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: 12 V battery rail in engine control units exposed to load-dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input to clamp surges before regulation stage. Use Value: Limits voltage to ≤92.0 V during 400 W transients, protecting downstream 65 V-input buck controllers and gate drivers. |
Use Scenario: Analog output line of pressure sensor in factory automation PLC modules subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Clamps sub-100 ns ESD events to <92.0 V while maintaining signal integrity via DO-41's minimal parasitic inductance. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
|
Use Scenario: AC-DC adapter primary-side rectifier output subjected to lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-side TVS across bulk capacitor to absorb residual transients escaping MOV-based front-end protection. Use Value: Absorbs 400 W pulses without degradation, enabling compact design with no heatsink required due to 1.5 W steady-state PD rating. |
Use Scenario: -48 V DC feeder line in telecom base station remote radio units exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Unidirectional TVS installed between feeder line and ground to protect PoE-like interface circuitry. Use Value: Withstands repeated 10/1000 μs surges up to 4.3 A while maintaining VWM = 58.1 V to avoid false triggering on nominal -48 V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Surface-mount SMB package (vs. DO-41 through-hole); same VBR range (60.8–67.2 V), lower VC = 103 V at 3.5 A | Requires PCB rework for SMT assembly; better high-frequency response but higher thermal resistance (RθJA = 140 °C/W) | Select when board space is constrained and automated pick-and-place is available; verify layout clearance for 103 V clamping. |
| 1.5KE68A | Higher peak power (1500 W), larger DO-201 package; VBR = 64.6–71.4 V, VC = 112 V at 13.3 A | Used where multi-pulse robustness or higher surge margin is needed; not AEC-Q101 qualified | Choose for non-automotive industrial systems needing higher single-pulse energy handling; accept larger footprint and no automotive qualification. |
Compared with SMBJ64A and 1.5KE68A, the P4KE68-E3/54 offers AEC-Q101 qualification and DO-41 mechanical robustness ideal for serviceable or vibration-prone automotive harness connections, while delivering optimal clamping efficiency (92.0 V) within its 400 W rating - making it preferred for cost-sensitive, through-hole automotive and industrial designs requiring validated reliability.
Availability
P4KE68-E3/54 is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface hardening, and telecom DC feeder surge suppression requiring stable component supply across production lifecycles.
Supply support for P4KE68-E3/54 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 P4KE68-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for bidirectional and unidirectional transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where repeatable clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the exact breakdown voltage range for P4KE68-E3/54?
The P4KE68-E3/54 has a guaranteed breakdown voltage (VBR) range of 64.6 V to 71.4 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures consistent avalanche triggering across production lots - critical for predictable clamping behavior in P4KE68-E3/54-based protection circuits.
Is P4KE68-E3/54 suitable for automotive applications?
Yes, the P4KE68-E3/54 is AEC-Q101 qualified (per note in datasheet revision 16-Sep-2021), confirming its suitability for automotive powertrain and body electronics. Its DO-41 package, 175 °C maximum junction temperature, and validated surge performance make P4KE68-E3/54 appropriate for under-hood and chassis-mounted protection where thermal and mechanical reliability are essential.
What does the "E3/54" suffix mean in P4KE68-E3/54?
The "E3" denotes RoHS-compliant, commercial-grade construction meeting JESD 201 class 1A whisker test requirements; "/54" specifies the preferred package code for 13-inch paper tape and reel delivery with 5500 units per reel. This packaging format ensures compatibility with standard axial-leaded component feeders used in P4KE68-E3/54 assembly lines.
How does P4KE68-E3/54 compare to bidirectional variants like P4KE68CA?
The P4KE68-E3/54 is unidirectional with cathode-band polarity, while P4KE68CA is bidirectional (no polarity marking) and intended for AC-line or differential-signal protection. Their VBR, VWM, and VC values differ: P4KE68CA has symmetric breakdown in both directions, whereas P4KE68-E3/54 only conducts in reverse bias - making P4KE68-E3/54 unsuitable for AC applications but more precise for DC rail clamping.
What is the maximum clamping voltage of P4KE68-E3/54 under surge conditions?
The P4KE68-E3/54 clamps to a maximum of 92.0 V at its rated peak pulse current of 4.3 A (IPPM) using the standardized 10/1000 μs waveform. This value is measured and guaranteed per datasheet Table "ELECTRICAL CHARACTERISTICS", ensuring that protected circuitry downstream of P4KE68-E3/54 will not experience voltages exceeding 92.0 V during defined surge events.
P4KE68-E3/54 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 55.1V
- Voltage - Breakdown (Min):
- 61.2V
- Voltage - Clamping (Max) @ Ipp:
- 98V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE68-E3/54 FAQ
1.How can I place an order for P4KE68-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE68-E3/54 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 P4KE68-E3/54 reliable?
The price and inventory of P4KE68-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE68-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE68-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE68-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE68-E3/54?
P4KE68-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE68-E3/54 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 P4KE68-E3/54?
For technical support, including P4KE68-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE68-E3/54 requirements.
6.How does Aetrix verify that P4KE68-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE68-E3/54 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 P4KE68-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE68-E3/54?
All P4KE68-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE68-E3/54, 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 P4KE68-E3/54 part is unused and in its original packaging.
Return procedure for P4KE68-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE68-E3/54 Tags
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