STMicroelectronics P6KE250CARL
- Part No.:
- P6KE250CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE250CARL.pdf
- Description:
- TVS DIODE 213VWM 442VC DO15
- Quantity:
- Payment:

- Shipping:

Inventory:2,020
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Product details
Overview
P6KE250CARL from STMicroelectronics is a bidirectional 250 V standoff transient voltage suppression (TVS) diode in DO-15 package, rated for 600 W peak pulse power (10/1000 µs), 442 A peak pulse current, and clamping voltage of 344 V at 1.75 A. It operates up to 175 °C junction temperature and meets IEC 61000-4-2 (±30 kV contact/air discharge) and IEC 61000-4-4 level 4 (4 kV) standards. It protects AC mains input stages in industrial power supplies against lightning-induced surges.
For engineers reviewing the P6KE250CARL datasheet, P6KE250CARL pinout, P6KE250CARL application, or P6KE250CARL equivalent, key selection criteria include bidirectional clamping behavior, 250 V VRM rating, 344 V VCL at 1.75 A, DO-15 mechanical compatibility, and high-temperature reliability in surge-prone AC line interfaces.
Technical Context
This TVS diode uses planar junction technology to achieve low leakage (<0.5 µA at 200 V), stable VBR (237–263 V), and predictable dynamic resistance (19.9 Ω at 8/20 µs). Its bidirectional structure enables symmetrical clamping on AC lines without polarity constraints.
The device delivers 442 A peak surge current under 10/1000 µs waveform while maintaining clamping voltage ≤344 V, and supports 4 kW surge capability under shorter 8/20 µs transients. Thermal design leverages DO-15's 28.5 mm body length and 3.24 mm diameter for effective PCB heat spreading at Tj = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 250 V - Maximum continuous reverse operating voltage before breakdown; defines AC line rating margin. |
| Breakdown Voltage (VBR) | 237–263 V at 1 mA - Tight 10% tolerance ensures consistent triggering across temperature and production lots. |
| Clamping Voltage (VCL) | 344 V at 1.75 A (10/1000 µs) - Limits downstream circuit stress during surge events; critical for MOSFET/bridge rectifier protection. |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustains standard lightning-surge energy per IEC 61000-4-5; derates to 300 W at Tj = 175 °C. |
| Peak Pulse Current (IPP) | 442 A (10/1000 µs) - Enables robust protection against high-energy transients in 230 VAC systems with low source impedance. |
| Junction Temperature Range | −55 to +175 °C - Supports operation in enclosed industrial enclosures and high-ambient environments without derating. |
| ESD Withstand (IEC 61000-4-2) | ±30 kV air/contact discharge - Exceeds Level 4; eliminates need for external ESD staging in front-end AC inputs. |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package: 6.40 mm body diameter, 28.5 mm overall length, matte tin-plated leads. Compatible with wave and reflow soldering per J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current sink (bidirectional) | Accepts surge current in either polarity; symmetric conduction enables AC line placement without orientation check. |
| Cathode (Lead 2) | Transient current sink (bidirectional) | Paired with Anode to form bidirectional clamping path; both terminals function identically under reverse/forward surge conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables direct placement across AC mains (L–N or L/N–PE) without polarity-sensitive routing or additional components. |
| Low dynamic resistance (19.9 Ω) | Minimizes VCL rise under high di/dt surges, ensuring tighter voltage control during fast 8/20 µs transients. |
| High-temperature stability (Tj max = 175 °C) | Maintains specified VBR and VCL performance in thermally constrained industrial power supplies and enclosed drives. |
| UL 497B certified (QVGQ2.E136224) | Validates suitability for primary-side surge protection in telecom and industrial AC adapters meeting UL safety requirements. |
| IEC 61000-4-4 level 4 compliance (4 kV) | Guarantees immunity to repetitive fast transients in electrically noisy factory-floor environments. |
Applications
| Industrial AC-DC Power Supplies | Smart Meter Front-End Protection |
|---|---|
|
Use Scenario: Surge protection on 230 VAC input stage prior to bridge rectifier and bulk capacitor. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient overvoltage to <344 V during lightning-induced surges. Use Value: Prevents destructive overvoltage on bridge rectifier and input filter capacitors during 10/1000 µs surges up to 442 A. |
Use Scenario: Input protection for polyphase electricity meters exposed to utility grid transients. IC Role / Device Role / Timing Role: Primary-line TVS suppressing differential-mode surges between L/N and common-mode surges to PE. Use Value: Maintains meter accuracy and prevents reset/failure during repeated 4 kV IEC 61000-4-4 bursts in substation-adjacent installations. |
| Motor Drive Control Boards | Building Automation Controllers |
|
Use Scenario: Protection of AC input terminals on variable frequency drive (VFD) control modules. IC Role / Device Role / Timing Role: Fast-response clamping device absorbing switching-induced transients from nearby contactors and inductive loads. Use Value: Eliminates false tripping and MCU resets caused by >1 kV ring waves coupled into control power rails. |
Use Scenario: Surge hardening of 24 VAC or 120 VAC-powered HVAC controllers in commercial buildings. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed across transformer secondary or relay coil inputs. Use Value: Extends field lifetime by preventing insulation breakdown and contact welding in electromechanical actuators subjected to frequent lightning coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250CA | DO-214AA package; lower PPP (600 W same), but higher VCL (356 V @ 1.75 A); 5.3 mm × 4.5 mm SMD footprint. | Requires PCB redesign for surface-mount layout; better thermal dissipation via copper pour but no axial lead mounting option. | Select when board space is constrained and automated assembly is preferred over through-hole insertion. |
| 1.5KE250CA | Higher PPP (1500 W), larger DO-201AD package (9.5 mm × 5.5 mm), VCL = 360 V @ 4.2 A; 1.5x physical size. | Overqualified for 600 W use cases; occupies more board area and increases cost where 600 W rating suffices. | Select only if system-level testing requires >1 kA surge margin or legacy DO-201AD footprint compatibility. |
Compared with SMBJ250CA and 1.5KE250CA, P6KE250CARL provides optimal balance of DO-15 mechanical compatibility, 600 W surge handling, and minimal PCB real estate-making it ideal for cost-sensitive, high-volume industrial AC input designs requiring proven through-hole reliability.
Availability
P6KE250CARL is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, smart meter front-end protection, and motor drive control boards requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P6KE250CARL 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, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.
P6KE250CARL belongs to ST's P6KE series of planar-junction TVS diodes, engineered specifically for high-reliability transient suppression in AC mains and DC power rail applications demanding extended temperature range and repeatable clamping performance.
FAQ
What is the maximum clamping voltage of P6KE250CARL under a 10/1000 µs surge?
The maximum clamping voltage is 344 V at 1.75 A for a 10/1000 µs waveform, measured at Tj = 25 °C. This value increases linearly with junction temperature using αT = 11 × 10−4/°C, reaching ~362 V at Tj = 125 °C per datasheet Equation 2.
Is P6KE250CARL unidirectional or bidirectional?
P6KE250CARL is a bidirectional TVS diode, indicated by the "CA" suffix. It clamps symmetrically in both polarities, making it suitable for AC line protection without polarity orientation concerns-unlike "A"-suffixed unidirectional variants.
Can P6KE250CARL be used in reflow soldering processes?
Yes-P6KE250CARL is qualified for reflow soldering per J-STD-020 MSL level 1. ST recommends a peak profile of 240–245 °C for 2–3 seconds, with ramp rates ≤3 °C/s and cooling ≥2 °C/s, as defined in DS0681 Figure 20.
How does P6KE250CARL compare to P6KE250A in terms of application scope?
P6KE250A is unidirectional and must be placed with correct anode/cathode orientation-suitable only for DC rails or half-wave rectified paths. P6KE250CARL's bidirectional behavior allows direct use across AC lines (L–N or L/N–PE), eliminating orientation dependency and enabling broader deployment in mains-connected equipment.
P6KE250CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 213V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 442V
- Current - Peak Pulse (10/1000µs):
- 9A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 155pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE250CARL FAQ
1.How can I place an order for P6KE250CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE250CARL 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 P6KE250CARL reliable?
The price and inventory of P6KE250CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE250CARL is usually 5 days.
3.What payment methods are accepted for P6KE250CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE250CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE250CARL?
P6KE250CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE250CARL 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 P6KE250CARL?
For technical support, including P6KE250CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE250CARL requirements.
6.How does Aetrix verify that P6KE250CARL is sourced from the original manufacturer or authorized distributors?
All P6KE250CARL 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 P6KE250CARL meets industry standards.
7.What is the process for return or replacement of P6KE250CARL?
All P6KE250CARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE250CARL, 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 P6KE250CARL part is unused and in its original packaging.
Return procedure for P6KE250CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE250CARL Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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