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Diodes Incorporated P6KE68CA-T
- Part No.:
- P6KE68CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68CA-T.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:7,076
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Product details
Overview
P6KE68CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 58.1V reverse standoff voltage (VRWM), 64.6V minimum breakdown voltage (VBR), 92.0V maximum clamping voltage (VC) at 6.5A peak pulse current (IPP), and DO-15 package with glass-passivated junction - used in automotive body control modules, industrial PLC I/O protection, and telecom power supply surge suppression.
For engineers reviewing the P6KE68CA-T datasheet, P6KE68CA-T pinout, P6KE68CA-T application, or P6KE68CA-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, unidirectional vs. bidirectional polarity requirements, 1.0ms 600W pulse handling capability, thermal derating above +25°C ambient, and RoHS-compliant lead-free plating for reflow compatibility.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling AC line and floating bus protection without polarity constraints. Its glass-passivated die ensures stable breakdown characteristics and low leakage (<5.0µA @ VRWM), while the DO-15 package provides mechanical robustness and thermal path via axial leads.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity standards when integrated with appropriate series impedance. Clamping response time is sub-nanosecond, limiting voltage overshoot during fast transients such as inductive switch-off or lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms 10/1000µs waveform); sustains single high-energy surges without failure |
| Reverse Standoff Voltage | 58.1V (VRWM); maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 64.6V min @ 1.0mA IT; onset of avalanche conduction under controlled test conditions |
| Clamping Voltage | 92.0V max @ 6.5A IPP; limits transient voltage seen by downstream circuitry |
| Peak Pulse Current | 6.5A @ 1.0ms pulse; defines maximum surge energy the device can safely shunt |
| Leakage Current | <5.0µA @ 58.1V; ensures minimal standby power loss and signal integrity in high-impedance circuits |
| Package | DO-15; axial-leaded plastic package rated UL 94V-0, 0.4g mass, compatible with wave/reflow soldering |
Pinout & Package
DO-15 package: axial-leaded, molded plastic case with cathode band marking omitted on bidirectional variants (P6KE68CA-T). Leads are tin-plated, solderable per MIL-STD-202 Method 208, and rated for 75°C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (negative polarity) | Conducts during negative transients; symmetrical with cathode in bidirectional operation |
| Cathode | Transient current sink (positive polarity) | Conducts during positive transients; functionally identical to anode in CA-series devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating nodes without polarity biasing components |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| 600W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4kV line-to-line, 2Ω source impedance) surge requirements |
| RoHS-compliant lead finish | Lead-free matte tin plating supports Pb-free reflow profiles and eliminates post-solder cleaning |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot margin required between protected IC's absolute max rating and VC |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIOs and CAN transceiver power rails from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point before ESD diode array. Use Value: 92.0V clamping ensures MCU VDD (5V or 3.3V rail with LDO) remains within safe operating area during 12V system surges up to 60V. |
Use Scenario: Shields 24V digital input optocoupler front-end from field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: First-stage surge absorber upstream of series current-limiting resistor and Zener clamp. Use Value: 6.5A IPP rating handles repetitive 1kV/500A surges per IEC 61000-4-4, extending optocoupler lifetime by >10× vs. unprotected design. |
| Telecom Power Supply Output | Smart Meter AC Mains Interface |
Use Scenario: Guards isolated DC-DC converter secondary-side outputs against reflected primary-side surges and hot-swap transients. IC Role / Device Role / Timing Role: Secondary-side TVS parallel to output capacitor, sized to absorb residual energy not filtered by primary MOV. Use Value: 600W rating absorbs up to 600mJ per event (1.0ms pulse), preventing output rail collapse during multi-pulse surge testing. |
Use Scenario: Suppresses differential-mode surges on 230VAC input before rectification and metering IC power supply. IC Role / Device Role / Timing Role: Bidirectional clamp across live–neutral terminals, coordinated with Class II varistor on same PCB. Use Value: Symmetrical 58.1V VRWM allows direct placement across AC lines without polarity concerns, reducing BOM count vs. dual unidirectional setup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA-T | DO-214AA package; 64V VRWM; 100W peak power; lower IPP (32.4A) but higher clamping (104V) | Suitable for space-constrained layouts; lower thermal mass requires tighter board layout for heat dissipation | Select when footprint size is critical and surge energy is ≤100W; verify clamping margin against protected IC's absolute max rating |
| 1.5KE68CA-T | DO-201AD package; same 58.1V VRWM; 1500W peak power; higher IPP (13.0A); larger thermal mass | Better suited for high-repetition surge environments (e.g., motor drive feedback lines) | Choose for applications requiring >600W pulse handling or extended thermal endurance; avoid if board space or weight is constrained |
Compared with SMBJ64CA-T, P6KE68CA-T offers 6× higher pulse power in a similarly cost-effective axial package; versus 1.5KE68CA-T, it trades peak energy capacity for smaller size and lower assembly cost - optimal for cost-sensitive, moderate-surge industrial controls.
Availability
P6KE68CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom power supply surge suppression requiring stable component supply and legacy-design continuity.
Supply support for P6KE68CA-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The P6KE series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for cost-sensitive, high-volume industrial and automotive applications where reliability under repetitive surge stress is essential.
FAQ
Is P6KE68CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE68CA-T and the entire P6KE series (DS21502 Rev. 20-4, August 2024). It is marked "OBSOLETE – PART DISCONTINUED" in the datasheet. Aetrix Electronics maintains limited legacy stock for design continuity and last-time buy support, but no new production is planned.
What is the difference between P6KE68A-T and P6KE68CA-T?
P6KE68A-T is unidirectional (cathode-banded), conducting only during positive transients; P6KE68CA-T is bidirectional, with identical clamping behavior for both polarities. The 'C' suffix explicitly denotes bidirectional construction, confirmed in Diodes' datasheet Note 4 and marking guidelines.
Can P6KE68CA-T be used in place of a Zener diode for voltage regulation?
No - this device is optimized for transient suppression, not steady-state regulation. Its VBR tolerance (±5%), high dynamic impedance above IPP, and lack of specified regulation current make it unsuitable for precision voltage reference or linear regulation applications.
What is the maximum allowable PCB trace length between P6KE68CA-T and the protected node?
For effective clamping, total inductance from TVS to protected IC must be minimized. With typical 50mm PCB traces (≈100nH), voltage overshoot exceeds VC by ≥20%. Diodes recommends ≤10mm trace length (≤20nH) and direct placement adjacent to connector or IC power pins to maintain clamping integrity.
P6KE68CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- 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-15
P6KE68CA-T FAQ
1.How can I place an order for P6KE68CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68CA-T 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 P6KE68CA-T reliable?
The price and inventory of P6KE68CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68CA-T is usually 5 days.
3.What payment methods are accepted for P6KE68CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68CA-T?
P6KE68CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68CA-T 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 P6KE68CA-T?
For technical support, including P6KE68CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68CA-T requirements.
6.How does Aetrix verify that P6KE68CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE68CA-T 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 P6KE68CA-T meets industry standards.
7.What is the process for return or replacement of P6KE68CA-T?
All P6KE68CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68CA-T, 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 P6KE68CA-T part is unused and in its original packaging.
Return procedure for P6KE68CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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