onsemi P6KE30CARL
- Part No.:
- P6KE30CARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE30CARL.pdf
- Description:
- TVS DIODE 25.6VWM 53.5VC DO15
- Quantity:
- Payment:

- Shipping:

Inventory:12,730
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Product details
Overview
P6KE30CARL from STMicroelectronics is a bidirectional 30 V transient voltage suppression (TVS) diode in DO-15 package, rated for 600 W peak pulse power (10/1000 µs), 53.5 V clamping voltage at 75 A surge current, and operating junction temperature up to +175 °C. It protects Ethernet PHY interfaces, industrial I/O lines, and AC/DC power input stages against IEC 61000-4-2 ESD (±30 kV contact/air) and IEC 61000-4-4 EFT (4 kV).
For engineers reviewing the P6KE30CARL datasheet, P6KE30CARL pinout, P6KE30CARL application, or P6KE30CARL equivalent, key selection criteria include bidirectional clamping behavior, low dynamic resistance (0.293 Ω), high-temperature reliability (Tj = 175 °C), and compatibility with automated reflow (JEDEC J-STD-020 MSL Level 1).
Technical Context
This TVS diode uses planar junction technology to achieve low leakage (<0.5 µA at VRM = 26 V), stable breakdown voltage (28.5–31.5 V at 1 mA), and predictable clamping performance across temperature (αT = 9.7 × 10⁻⁴/°C). Its unidirectional/bidirectional variants share identical DO-15 mechanical form factor and thermal impedance profile.
The device operates as a voltage-clamped shunt protector: during transients, it avalanches near VBR to divert surge current away from downstream circuitry while maintaining VCL ≤ 53.5 V at 75 A (10/1000 µs). Its RD = 0.293 Ω enables fast response and minimal overshoot under fast-rising 8/20 µs surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30 / 31.5 V at IBR = 1 mA - defines precise turn-on threshold for reliable overvoltage triggering |
| VCL @ IPP | 53.5 V at 75 A (10/1000 µs) - maximum clamped voltage seen by protected IC during worst-case surge |
| PPP | 600 W (10/1000 µs) - peak power handling capacity under standard lightning surge waveform |
| RD | 0.293 Ω - dynamic resistance determining voltage overshoot and energy dissipation linearity |
| Tj max | +175 °C - enables operation in high-ambient environments like motor drives and industrial power supplies |
| IR @ VRM | 0.5 µA max at 26 V - ultra-low leakage preserves signal integrity in high-impedance sensor or communication lines |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking; leads are matte tin-plated for solderability and RoHS compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Surge return path for bidirectional conduction | Completes low-impedance shunt path during both positive and negative transients |
| Cathode (banded end) | Surge injection node for bidirectional conduction | Identifies polarity-sensitive mounting; banded end connects to protected line in standard layout |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| IEC 61000-4-2 Level 4 compliance | Withstands ±30 kV contact and air discharge-exceeds industrial immunity requirements |
| High Tj derating capability | Maintains 300 W surge rating at full +175 °C junction temperature per Figure 3 |
| Low dynamic resistance (RD) | 0.293 Ω minimizes VCL rise under high-current transients, reducing stress on downstream ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking-reduces manufacturing overhead |
Applications
| Industrial PLC I/O Protection | AC/DC Power Input Stage |
|---|---|
Use Scenario: Protecting 24 V DC digital input modules from induced surges on long field wiring. IC Role / Device Role / Timing Role: Shunt TVS diode placed between input line and ground, clamping transients before they reach optocoupler or MCU GPIO. Use Value: Limits voltage to ≤53.5 V during 75 A surges, preventing latch-up or permanent damage to isolation components rated for 60 V absolute max. |
Use Scenario: Safeguarding bridge rectifier outputs and bulk capacitor inputs against line-to-line and line-to-ground surges. IC Role / Device Role / Timing Role: Bidirectional TVS connected across primary-side DC bus to clamp differential-mode transients from AC mains coupling. Use Value: Absorbs 600 W (10/1000 µs) without degradation, preserving capacitor lifetime and avoiding overvoltage trip in PFC controllers. |
| Ethernet PHY Interface | Automotive Body Control Module |
Use Scenario: Guarding RJ45 magnetics secondary side against ESD events during hot-plug or cable handling. IC Role / Device Role / Timing Role: Bidirectional TVS placed across transformer center taps or data pairs to suppress common-mode ESD pulses. Use Value: Clamps ±30 kV ESD (IEC 61000-4-2) within nanoseconds, limiting induced voltage on PHY pins to safe levels below 1.8 V tolerance. |
Use Scenario: Protecting LIN bus transceivers and sensor supply rails in under-hood modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients before reaching LDO regulators or microcontroller IO. Use Value: Sustains 175 °C junction temperature during engine bay operation while delivering 53.5 V clamping at 75 A-meeting AEC-Q101 thermal robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | DO-214AA package; 600 W rating; VBR = 33.3–36.8 V; VCL = 48.4 V @ 85 A | Surface-mount footprint reduces board area but requires higher PCB copper for thermal management | Select when space-constrained layouts demand SMD packaging and thermal design supports lower Rth(j-a). |
| 1.5KE30CA | DO-201AD package; 1500 W rating; VBR = 28.5–31.5 V; VCL = 48.4 V @ 155 A | Higher surge rating suits harsher environments (e.g., utility metering), but larger body increases mounting complexity | Choose where legacy through-hole compatibility and >1 kW surge margin are required over DO-15 size constraints. |
Compared with SMBJ30CA and 1.5KE30CA, P6KE30CARL offers optimal balance of compact DO-15 form factor, proven 175 °C operation, and precise 30 V VBR targeting mid-range industrial signal lines-making it ideal for cost-sensitive, thermally demanding, and space-limited designs.
Availability
P6KE30CARL is available at Aetrix Electronics and suitable for industrial PLC I/O protection, AC/DC power input stage hardening, and Ethernet PHY interface safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for P6KE30CARL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.
P6KE is part of ST's high-reliability TVS diode portfolio engineered specifically for robust electrostatic and electrical overstress protection in industrial automation, power conversion, and communications infrastructure.
FAQ
What is the maximum clamping voltage of P6KE30CARL under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 53.5 V at 75 A peak pulse current under the standard 10/1000 µs waveform, measured at Tamb = 25 °C. This value increases linearly with junction temperature using αT = 9.7 × 10⁻⁴/°C, reaching ~58.2 V at Tj = 125 °C per datasheet Equation 2.
Is P6KE30CARL suitable for bidirectional AC signal line protection?
Yes-P6KE30CARL is a bidirectional TVS diode (denoted by "CA") with symmetrical breakdown characteristics, enabling protection of AC-coupled or floating differential lines such as RS-485, CAN, or Ethernet magnetics without polarity concerns. Its VBR range (28.5–31.5 V) ensures consistent triggering on both polarities.
How does the DO-15 package affect thermal performance compared to SMD alternatives?
The DO-15 axial package has higher thermal resistance (Rth(j-a) ≈ 50–60 °C/W on FR4 with 1 cm² copper per lead) than SMD packages like SMB (≈30–40 °C/W), limiting sustained power dissipation. However, its robust leadframe handles high single-pulse energy (600 W) and supports manual rework-ideal for prototyping and low-volume industrial assemblies.
Does P6KE30CARL meet automotive qualification standards?
P6KE30CARL is not AEC-Q101 qualified, though it operates reliably up to +175 °C junction temperature and passes IEC 61000-4-2/4-4. For automotive applications, ST recommends AEC-Q101-certified alternatives like SMAJ30CA or SMCJ30CA; P6KE30CARL remains appropriate for under-hood industrial equipment where full automotive qualification is not mandated.
P6KE30CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 75A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 537.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE30CARL FAQ
1.How can I place an order for P6KE30CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE30CARL 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 P6KE30CARL reliable?
The price and inventory of P6KE30CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE30CARL is usually 5 days.
3.What payment methods are accepted for P6KE30CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE30CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE30CARL?
P6KE30CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE30CARL 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 P6KE30CARL?
For technical support, including P6KE30CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE30CARL requirements.
6.How does Aetrix verify that P6KE30CARL is sourced from the original manufacturer or authorized distributors?
All P6KE30CARL 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 P6KE30CARL meets industry standards.
7.What is the process for return or replacement of P6KE30CARL?
All P6KE30CARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE30CARL, 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 P6KE30CARL part is unused and in its original packaging.
Return procedure for P6KE30CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE30CARL Tags

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onsemi

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Diodes Incorporated

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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