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Vishay General Semiconductor - Diodes Division P6KE51C-E3/54
- Part No.:
- P6KE51C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE51C-E3/54.pdf
- Description:
- TVS DIODE 41.3VWM 73.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,706
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Product details
Overview
P6KE51C-E3/54 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features 600 W peak pulse power (10/1000 μs), 43.6 V stand-off voltage (VWM), 48.5–53.6 V breakdown voltage (VBR) at 1 mA, and clamps to ≤70.1 V at 8.6 A peak pulse current. It protects MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6KE51C-E3/54 datasheet, P6KE51C-E3/54 pinout, P6KE51C-E3/54 application, or P6KE51C-E3/54 equivalent, key selection criteria include bi-directional clamping capability, UL 497B recognition, AEC-Q101 qualification (HE3 variant), thermal resistance (RθJL = 20 °C/W), and compatibility with 10/1000 μs surge waveforms per IEC 61000-4-5.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes before sensitive downstream components are damaged.
The device complies with UL 497B (QVGQ2 file E136766) for telecom and industrial protectors and meets JESD 22-B106 solderability (275 °C, 10 s). Its 175 °C max junction temperature and -55 °C to +175 °C operating range support under-hood automotive and high-temperature industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 43.6 V - Maximum continuous working voltage before clamping begins; ensures no conduction during normal operation. |
| VBR (Breakdown Voltage) | 48.5–53.6 V at 1 mA - Tight tolerance defines precise turn-on threshold for transient suppression. |
| VC (Clamping Voltage) | ≤70.1 V at IPPM = 8.6 A - Limits peak voltage seen by protected circuit during 10/1000 μs surge. |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy transients without failure; derates linearly above 25 °C ambient. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Negligible standby current avoids loading of high-impedance signal lines. |
| TJ max | 175 °C - Enables use in engine control units and industrial motor drives with elevated ambient temperatures. |
| RθJL | 20 °C/W - Low junction-to-lead thermal resistance supports reliable power dissipation without heatsinking. |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; RoHS-compliant (E3 suffix), UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional terminal pair | No polarity marking; terminals interchangeable - provides identical clamping in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <1 ns response time and stable long-term reliability under repetitive surge stress. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy lightning-induced surges per IEC 61000-4-5 Level 4 without degradation. |
| UL 497B recognized (QVGQ2, E136766) | Validated for telecom line protection and industrial interface applications requiring safety certification. |
| AEC-Q101 qualified (P6KE51CHE3 variant) | Qualified for automotive powertrain and body electronics where reliability under thermal cycling is mandatory. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage margin between breakdown and clamping - improves system-level surge immunity. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal lines or supply rails upstream of interface ICs. Use Value: Clamps transients to ≤70.1 V while maintaining <1.0 μA leakage - preserves signal integrity and prevents latch-up in 3.3 V/5 V sensor front-ends. |
Use Scenario: Shielding digital input modules from inductive kickback when switching solenoids or relays in factory automation. IC Role / Device Role / Timing Role: Primary surge suppressor on 24 V DC input terminals, coordinated with fuse and series impedance. Use Value: Absorbs 600 W pulses without degradation, enabling robust operation in ungrounded or high-noise plant-floor environments. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-side protection on Ethernet PHY or RS-485 transceiver lines exposed to ESD and induced surges. IC Role / Device Role / Timing Role: Fast-acting shunt element that activates within nanoseconds to limit voltage excursion across data-line ESD diodes. Use Value: Symmetric clamping ensures equal protection for both signal polarities - essential for full-duplex communication links. |
Use Scenario: Input-stage surge suppression on AC-DC adapter primary side (across bridge rectifier output or bulk capacitor). IC Role / Device Role / Timing Role: Standby-mode protector that remains non-conductive at 43.6 V DC but clamps >50 V transients. Use Value: Prevents overvoltage damage to switching controllers and optocouplers during lightning-induced mains surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51CA | Same VWM (43.6 V) and VC (70.1 V), but 600 W rating in smaller SMB package (DO-214AA); lower RθJA (50 °C/W vs. 75 °C/W). | Better suited for space-constrained PCB layouts; requires tighter trace routing due to higher current density. | Select SMBJ51CA when board area is limited and thermal management via copper pour is feasible. |
| 1.5KE51CA | Higher PPPM (1500 W), same VWM/VC, but larger DO-201AD package; 10/1000 μs rating validated to 1500 W (not 600 W). | Used where higher single-event surge margin is required (e.g., outdoor telecom cabinets). | Choose 1.5KE51CA only if system-level testing confirms need for >600 W pulse handling - adds cost and footprint. |
Compared with SMBJ51CA and 1.5KE51CA, P6KE51C-E3/54 delivers optimal balance of proven 600 W surge capability, DO-15 manufacturability, and AEC-Q101 availability (via HE3 variant), making it ideal for cost-sensitive automotive and industrial production programs.
Availability
P6KE51C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and RoHS compliance.
Supply support for P6KE51C-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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6KE series was engineered for cost-effective, high-surge-capability transient suppression in commercial and automotive-grade systems - prioritizing fast response, repeatable clamping, and UL/IEC-compliant performance in compact DO-15 packaging.
FAQ
What is the polarity configuration of P6KE51C-E3/54?
P6KE51C-E3/54 is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, making it suitable for AC-coupled or differential signal lines where voltage transients may occur with either polarity. This eliminates orientation errors during automated placement.
Does P6KE51C-E3/54 meet AEC-Q101 qualification?
The base part P6KE51C-E3/54 is RoHS-compliant commercial grade. The AEC-Q101 qualified version is designated P6KE51CHE3/54 (HE3 suffix), which undergoes extended stress testing including temperature cycling, HTRB, and ESD per AEC-Q101 Rev D. Always verify suffix when specifying for automotive applications.
What is the maximum clamping voltage of P6KE51C-E3/54 at rated surge current?
P6KE51C-E3/54 clamps to a maximum of 70.1 V when subjected to its rated peak pulse current of 8.6 A (10/1000 μs waveform). This value is guaranteed across the full operating temperature range and forms the basis for system-level overvoltage margin calculations in protected circuits.
Can P6KE51C-E3/54 be used in place of a unidirectional TVS like P6KE51A-E3/54?
No - P6KE51C-E3/54 is bi-directional and lacks a defined cathode band; P6KE51A-E3/54 is unidirectional with cathode marking and different IV characteristics (e.g., forward voltage drop). Substitution requires circuit redesign to accommodate symmetric clamping and verify no DC bias conflicts arise in the application.
What is the thermal resistance from junction to lead (RθJL) for P6KE51C-E3/54?
The typical thermal resistance from junction to lead for P6KE51C-E3/54 is 20 °C/W. This low value allows efficient heat transfer from the silicon die to the PCB copper through the leads, supporting reliable operation at full 600 W pulse power without external heatsinking in standard FR-4 layouts with adequate pad copper.
P6KE51C-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 41.3V
- Voltage - Breakdown (Min):
- 45.9V
- Voltage - Clamping (Max) @ Ipp:
- 73.5V
- Current - Peak Pulse (10/1000µs):
- 8.2A
- 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)
P6KE51C-E3/54 FAQ
1.How can I place an order for P6KE51C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE51C-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 P6KE51C-E3/54 reliable?
The price and inventory of P6KE51C-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 P6KE51C-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE51C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE51C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE51C-E3/54?
P6KE51C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE51C-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 P6KE51C-E3/54?
For technical support, including P6KE51C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE51C-E3/54 requirements.
6.How does Aetrix verify that P6KE51C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE51C-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 P6KE51C-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE51C-E3/54?
All P6KE51C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE51C-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 P6KE51C-E3/54 part is unused and in its original packaging.
Return procedure for P6KE51C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE51C-E3/54 Tags
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