Vishay General Semiconductor - Diodes Division P6KE56C-E3/54
- Part No.:
- P6KE56C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE56C-E3/54.pdf
- Description:
- TVS DIODE 45.4VWM 80.5VC DO204AC
- Quantity:
- Payment:

- Shipping:

Inventory:5,898
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Product details
Overview
P6KE56C-E3/54 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal or power lines. It features a 56 V breakdown voltage (VBR min = 53.2 V, max = 58.8 V), 77.0 V maximum clamping voltage at 7.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the P6KE56C-E3/54 datasheet, P6KE56C-E3/54 pinout, P6KE56C-E3/54 application, or P6KE56C-E3/54 equivalent, key selection criteria include bi-directional clamping capability, DO-15 package compatibility, UL 94 V-0 rated epoxy molding, AEC-Q101 qualification status, and thermal resistance (RθJL = 20 °C/W) for PCB-level thermal design.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling use on AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance (ID ≤ 1.0 μA at VWM = 47.8 V) and fast response time (<1 ns), critical for suppressing ESD and lightning-induced surges before downstream ICs are damaged.
The P6KE56C-E3/54 complies with AEC-Q101 for automotive-grade reliability and uses a DO-204AC (DO-15) package with matte tin-plated leads solderable per J-STD-002. Its 175 °C maximum junction temperature and 20 °C/W junction-to-lead thermal resistance support operation under high ambient conditions when mounted on copper pours or short lead traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at IT = 1.0 mA - defines guaranteed avalanche onset range for bi-directional clamping |
| VWM | 47.8 V - maximum continuous reverse working voltage; system voltage must stay below this to avoid leakage or degradation |
| VC @ IPPM | 77.0 V at 7.8 A (10/1000 μs) - peak clamped voltage seen by protected circuit during worst-case transient |
| PPPM | 600 W - surge energy handling capacity; determines survivability against IEC 61000-4-5 Level 4 (4 kV) events |
| ID @ VWM | ≤ 1.0 μA - ultra-low leakage ensures minimal loading on high-impedance sensor or communication lines |
| RθJL | 20 °C/W - enables thermal design with simple PCB copper area; limits junction rise to ~156 °C at 7.8 A pulse |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package compatible with automated insertion and wave soldering |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; no polarity marking for bi-directional types; matte tin-plated leads compliant with JESD 22-B102 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between leads; either terminal serves as input/output for transient suppression |
| Lead 1 | Current path entry/exit | Connected directly to PCB trace or connector; requires minimum 25 mm² copper pour for thermal relief at high pulse duty |
| Lead 2 | Current path entry/exit | Electrically identical to Lead 1; bidirectional conduction eliminates need for orientation during placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance (±5 %) and low leakage over 1000+ thermal cycles |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without derating at TA ≤ 85 °C |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics with 175 °C TJ rating |
| UL 94 V-0 epoxy molding | Prevents flame propagation during catastrophic failure, satisfying end-equipment safety certifications |
| Solder dip 275 °C / 10 s | Enables compatibility with lead-free reflow profiles while maintaining junction integrity |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and wheel speed sensors from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Clamps 12 V system transients to ≤77 V within <1 ns, preventing latch-up or gate oxide rupture in 5 V tolerant receivers. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from field wiring surges. IC Role / Device Role / Timing Role: Standoff protector connected between signal line and ground, conducting only during >47.8 V excursions. Use Value: Maintains ≤1.0 μA leakage at 24 V nominal, avoiding measurement error while surviving 1 kV/500 A surge events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Safeguarding Ethernet PHY front-end circuits and DSL line drivers against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices on each twisted pair, referenced to chassis ground. Use Value: Symmetric clamping ensures equal protection for positive/negative transients without polarity-sensitive layout constraints. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb back-EMF energy during MOSFET turn-off. Use Value: Dissipates 600 W peak energy without degradation, extending MOSFET lifetime and reducing EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | DO-214AA package; lower RθJA (50 °C/W vs. 75 °C/W); same VBR (58 V) and VC (93.6 V) | Better suited for surface-mount layouts with limited board space; higher clamping voltage reduces margin for 5 V logic protection | Select SMBJ58CA when SMT assembly is required and PCB real estate is constrained; verify VC margin against downstream IC absolute maximum ratings. |
| 1.5KE56CA | Higher PPPM (1500 W); larger DO-201AD package; identical VBR/VC specs and bi-directional configuration | Used where multi-kilovolt surge immunity (IEC 61000-4-5 Level 5) is mandated, such as outdoor telecom cabinets | Choose 1.5KE56CA for enhanced surge robustness in harsh environments; accept larger footprint and higher cost for mission-critical protection. |
Compared with SMBJ58CA and 1.5KE56CA, the P6KE56C-E3/54 offers optimal balance of axial-lead manufacturability, AEC-Q101 qualification, and 600 W surge rating - making it ideal for cost-sensitive automotive and industrial designs requiring proven reliability without SMT conversion or oversized packaging.
Availability
P6KE56C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog I/O protection, and telecom line conditioning requiring stable component supply and long-term lifecycle support.
Supply support for P6KE56C-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 optimization.
The P6KE series was developed for cost-effective, high-surge-capability transient suppression in commercial and automotive systems where DO-15 form factor and AEC-Q101 compliance are essential.
FAQ
What does the "C" suffix indicate in P6KE56C-E3/54?
The "C" in P6KE56C-E3/54 denotes bi-directional configuration, meaning the device provides symmetrical avalanche clamping for both positive and negative transients. Unlike uni-directional variants (e.g., P6KE56A), the P6KE56C-E3/54 has no cathode marking and functions identically regardless of terminal orientation - critical for AC-coupled or floating signal lines where polarity is undefined.
Is P6KE56C-E3/54 RoHS compliant and halogen-free?
Yes, P6KE56C-E3/54 carries the "E3" suffix, confirming RoHS compliance per Directive 2011/65/EU and halogen-free status per JEDEC JS709A. The device uses matte tin-plated leads and UL 94 V-0 epoxy molding - fully documented in Vishay's material category policy (doc# 99912) and verified through third-party testing reports available upon request for P6KE56C-E3/54.
How does P6KE56C-E3/54 differ from P6KE56A-E3/54?
P6KE56C-E3/54 is bi-directional with symmetrical clamping behavior, while P6KE56A-E3/54 is uni-directional and features a cathode band for polarity-sensitive placement. Their VBR, VC, and PPPM ratings are identical, but P6KE56A-E3/54 specifies forward voltage (VF = 3.5 V at 50 A) and supports IFSM = 100 A - making it suitable for DC power rail protection where unidirectional conduction is acceptable.
Can P6KE56C-E3/54 be used in place of P6KE56A-E3/54?
No - P6KE56C-E3/54 cannot serve as a direct replacement for P6KE56A-E3/54 in uni-directional applications because it lacks forward conduction capability and does not meet the same IFSM rating. Substitution requires circuit review: if the application involves AC signals, floating references, or bidirectional transients, P6KE56C-E3/54 is appropriate; for DC supply clamping with surge current demands, P6KE56A-E3/54 remains necessary.
What is the maximum operating temperature for P6KE56C-E3/54?
The P6KE56C-E3/54 has a maximum junction temperature (TJ) of +175 °C and an operating storage temperature range of –55 °C to +175 °C. Its thermal resistance junction-to-lead (RθJL) is 20 °C/W, so sustained power dissipation must be limited to maintain TJ within rating - e.g., at 75 °C ambient, maximum continuous power is ~5.0 W with infinite heatsink, per Vishay's derating curve in document 88369.
P6KE56C-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):
- 45.4V
- Voltage - Breakdown (Min):
- 50.4V
- Voltage - Clamping (Max) @ Ipp:
- 80.5V
- Current - Peak Pulse (10/1000µs):
- 7.5A
- 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)
P6KE56C-E3/54 FAQ
1.How can I place an order for P6KE56C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE56C-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 P6KE56C-E3/54 reliable?
The price and inventory of P6KE56C-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 P6KE56C-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE56C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE56C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE56C-E3/54?
P6KE56C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE56C-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 P6KE56C-E3/54?
For technical support, including P6KE56C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE56C-E3/54 requirements.
6.How does Aetrix verify that P6KE56C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE56C-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 P6KE56C-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE56C-E3/54?
All P6KE56C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE56C-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 P6KE56C-E3/54 part is unused and in its original packaging.
Return procedure for P6KE56C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE56C-E3/54 Tags

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