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Taiwan Semiconductor Corporation P6KE56
- Part No.:
- P6KE56
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE56.pdf
- Description:
- 600W, 56V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,843
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Product details
Overview
P6KE56 from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 56 V, clamps transients to ≤80.5 V at 7.8 A peak surge current, and maintains ≤1 μA reverse leakage at its 45.4 V standoff voltage - deployed in automotive body electronics, industrial PLC I/O modules, and LED driver input stages.
For engineers reviewing the P6KE56 datasheet, P6KE56 pinout, P6KE56 application, or P6KE56 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, 10/1000 µs surge rating, unidirectional polarity marking, and AEC-Q101 qualification status (P6KE56H variant only).
Technical Context
The P6KE56 operates as a silicon avalanche diode with fast response (<1.0 ps from 0 V to VBR) and low dynamic impedance, enabling effective suppression of ESD, EFT, and inductive switching spikes. Its junction temperature range spans −55 °C to +175 °C, supporting under-hood and industrial ambient conditions.
Clamping performance is defined per ANSI/IEEE C62.35: VC = 80.5 V at IPP = 7.8 A (10/1000 µs), with VBR = 50.4–61.6 V measured at IT = 1 mA. The device exhibits a temperature coefficient of VBR of +0.103 %/°C, ensuring predictable voltage drift across operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 50.4 V / 61.6 V at IT = 1 mA - defines reliable avalanche initiation window for consistent clamping onset |
| VWM | 45.4 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPP | 80.5 V at 7.8 A (10/1000 µs) - peak clamped voltage seen by protected circuit during worst-case surge |
| PPK | 600 W - non-repetitive surge power handling capability per standard 10/1000 µs waveform |
| IR @ VWM | ≤1 μA - ensures negligible standby power loss and minimal loading on high-impedance source circuits |
| Junction Temp | −55 °C to +175 °C - supports operation in engine compartments, motor drives, and industrial enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with tin-plated leads, UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking for unidirectional polarity. Leads are pure tin-plated and solderable per J-STD-002; weight ≈0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; forms return path during clamping |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 48 V rail); avalanche conduction occurs anode-to-cathode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | P6KE56H variant meets automotive reliability stress testing for under-hood and chassis applications |
| Low clamping ratio | VC/VBR ≈ 1.36 - tight voltage margin between breakdown and clamping enables robust protection of 50 V-rated ICs |
| Fast transient response | <1.0 ps response from 0 V to VBR - mitigates sub-nanosecond ESD events before downstream logic is disrupted |
| Halogen-free construction | Complies with IEC 61249-2-21 - satisfies environmental compliance requirements for RoHS-compliant industrial and automotive assemblies |
| UL recognition | UL File #E-326243 - validates safety compliance for end-equipment certification in North American markets |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 48 V supply rail against load dump and alternator ripple in BCM microcontroller power domain. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDO regulators and MCU VCC pins. Use Value: Limits transient excursions to ≤80.5 V, preventing latch-up or gate oxide damage in 50 V-rated power management ICs. |
Use Scenario: Safeguarding 24 V digital input optocoupler front-end from field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: First-line TVS on each isolated input channel, before series current-limiting resistor. Use Value: Clamps 1 kV EFT bursts to <81 V within nanoseconds, preserving optocoupler CTR and long-term isolation integrity. |
| LED Streetlight Driver Input Stage | Telecom Power Shelf Surge Protection |
Use Scenario: Suppressing lightning-induced surges on AC/DC rectified bus feeding constant-current LED driver ICs. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor, coordinated with MOV and fuse. Use Value: Absorbs 600 W surges without thermal runaway, maintaining VWM = 45.4 V to avoid conduction during normal 42 V peak rectified operation. |
Use Scenario: Secondary-level protection on −48 V telecom distribution bus against coupling from adjacent power feeds or grounding faults. IC Role / Device Role / Timing Role: Unidirectional TVS on each output branch of DC/DC converter module. Use Value: Provides precise 56 V clamping threshold aligned with −48 V system tolerance, avoiding false triggering during brownout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ58A | DO-214AC (SMA) package; 58 V VBR; 600 W rating; 83.5 V VC @ 7.2 A | Surface-mount alternative requiring PCB rework; lower clamping voltage but higher thermal resistance than DO-15 | Select when automated SMT assembly is required and board space constraints preclude axial components. |
| ON Semiconductor 1.5KE56A | DO-201AD package; same 56 V nominal; 1500 W rating; 93.6 V VC @ 16.1 A | Higher power rating but looser clamping ratio (VC/VBR ≈ 1.67); larger footprint and higher cost | Choose only if legacy 1.5 kW surge immunity is mandated and tighter clamping is not critical. |
Compared with SMAJ58A and 1.5KE56A, the P6KE56 delivers optimal balance of axial form factor, 80.5 V clamping ceiling, and AEC-Q101 availability - making it preferred for cost-sensitive, space-constrained, and automotive-qualified designs where 600 W surge capacity suffices.
Availability
P6KE56 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and LED driver input surge suppression requiring stable component supply and traceable sourcing.
Supply support for P6KE56 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The P6KE Series belongs to TSC's transient protection product line, engineered specifically for high-reliability DC rail clamping in harsh environments - emphasizing AEC-Q101 qualification, tight parameter distributions, and UL/IEC compliance.
FAQ
What is the maximum clamping voltage of the P6KE56 under standard surge conditions?
The P6KE56 clamps to a maximum of 80.5 V when subjected to a 10/1000 µs surge waveform at 7.8 A peak current. This value is specified in the Electrical Specifications table and represents the upper limit of voltage imposed on the protected circuit during transient events - critical for ensuring compatibility with 50 V-rated downstream ICs and capacitors in the P6KE56 application circuit.
Is the P6KE56 unidirectional or bidirectional, and how is polarity identified?
The P6KE56 is a unidirectional TVS diode, with cathode indicated by a band on the DO-204AC (DO-15) package body. Its electrical characteristics apply only in the reverse-biased direction - forward conduction is not rated for surge suppression. Polarity must be observed during placement; incorrect orientation renders the P6KE56 ineffective for overvoltage protection.
Does the P6KE56 meet AEC-Q101 qualification, and which variant carries this rating?
The base P6KE56 is not AEC-Q101 qualified; only the P6KE56H variant (ordering code suffix "H") is AEC-Q101 certified per Version P2203 documentation. This qualification covers stress tests including HTGB, AC/DC life test, and temperature cycling - essential for automotive under-hood and chassis applications where the P6KE56H is deployed.
What is the standoff voltage (VWM) of the P6KE56, and why does it matter in circuit design?
The P6KE56 has a maximum working peak reverse voltage (VWM) of 45.4 V, meaning it remains in high-impedance blocking mode up to that DC or RMS voltage. This parameter ensures no significant leakage current flows during normal operation - vital for minimizing power loss in battery-powered systems and preventing false triggering in the P6KE56 application environment.
Can the P6KE56 be used in bidirectional configurations, and what alternatives exist if needed?
No - the P6KE56 is strictly unidirectional. For bidirectional protection, select the P6KE56CA variant (not P6KE56), which provides symmetrical clamping in both polarities. The P6KE56CA shares the same DO-204AC package and 600 W rating but uses a center-tapped die structure; substituting P6KE56 for P6KE56CA will result in incomplete protection during positive-going transients on grounded lines.
P6KE56 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 45.4V
- Voltage - Breakdown (Min):
- 50.4V
- Voltage - Clamping (Max) @ Ipp:
- 80.5V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
P6KE56 FAQ
1.How can I place an order for P6KE56 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE56 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 P6KE56 reliable?
The price and inventory of P6KE56 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE56 is usually 5 days.
3.What payment methods are accepted for P6KE56?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE56 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE56?
P6KE56 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE56 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 P6KE56?
For technical support, including P6KE56 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE56 requirements.
6.How does Aetrix verify that P6KE56 is sourced from the original manufacturer or authorized distributors?
All P6KE56 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 P6KE56 meets industry standards.
7.What is the process for return or replacement of P6KE56?
All P6KE56 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE56, 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 P6KE56 part is unused and in its original packaging.
Return procedure for P6KE56:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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