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STMicroelectronics P6KE250CA
- Part No.:
- P6KE250CA
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE250CA.pdf
- Description:
- TVS DIODE 213VWM 442VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,278
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Product details
Overview
P6KE250CA from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 250 V standoff voltage (VRM), 344 V maximum clamping voltage (VCL) at 1.75 A peak pulse current (IPP), and 600 W peak pulse power rating (10/1000 µs). It operates up to 175 °C junction temperature and is qualified per IEC 61000-4-2 (30 kV contact/air discharge) and IEC 61000-4-4 level 4 (4 kV).
For engineers reviewing the P6KE250CA datasheet, P6KE250CA pinout, P6KE250CA application, or P6KE250CA equivalent, this page delivers verified electrical parameters, DO-15 package mechanical data, real-world clamping behavior under 8/20 µs and 10/1000 µs transients, thermal derating curves, and direct alternatives with documented VBR, VCL, and IPP differences.
Technical Context
The P6KE250CA uses planar junction silicon technology optimized for low leakage (<0.5 µA at VRM = 213 V) and stable clamping performance across -55 °C to +175 °C. Its bidirectional structure enables symmetrical surge suppression on AC-coupled or floating lines without polarity constraints.
Dynamic resistance (RD = 19.9 Ω) and temperature coefficient (αT = 11 × 10⁻⁴ /°C) are specified to support accurate VCL calculation across operating temperatures using VCL(Tj) = VCL(25°C) × [1 + αT × (Tj − 25)]. Clamping is validated for both 10/1000 µs (IEC 61000-4-5) and 8/20 µs (IEC 61000-4-4) waveforms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 213 V - Maximum continuous reverse working voltage before breakdown begins |
| Breakdown Voltage (VBR) | 237–263 V at 1 mA - Confirmed minimum/maximum threshold where avalanche conduction initiates |
| Clamping Voltage (VCL) | 344 V at 1.75 A (10/1000 µs) - Peak voltage seen by protected circuit during standardized surge |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - Sustained surge energy handling capability at 25 °C ambient |
| Junction Temperature Range | −55 °C to +175 °C - Enables operation in automotive engine bays and industrial power supplies |
| ESD Robustness | 30 kV air/contact discharge (IEC 61000-4-2) - Exceeds level 4 immunity requirements |
| Leakage Current (IRM) | ≤0.5 µA at VRM - Ensures minimal standby power loss in high-impedance sensing circuits |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with matte tin-plated leads. Body length: 6.05–6.75 mm; lead diameter: 0.71–0.88 mm; overall length: 26–31 mm. Bidirectional marking: red tape on both ends.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Surge current entry (negative half-cycle) | Conducts during negative transients; forms symmetrical path with cathode |
| Cathode (Lead 2) | Surge current entry (positive half-cycle) | Conducts during positive transients; completes bidirectional clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| High-Temperature Operation | Rated for continuous use at Tj = 175 °C - eliminates derating concerns in sealed enclosures |
| Low Dynamic Resistance | RD = 19.9 Ω - minimizes voltage overshoot during fast-rising surges (e.g., EFT bursts) |
| UL 497B Recognition | File QVGQ2.E136224 - certifies suitability for telecom/data line protection per UL safety standards |
| MSL Level 1 Compliance | J-STD-020 - supports unlimited floor life and standard reflow without baking |
| Whisker-Resistant Finish | JESD-201 Class 2 - prevents tin whisker growth in long-life industrial deployments |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
|
Use Scenario: Protection of 24–48 V DC input stages against load dump and inductive switching spikes in PLC I/O modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontroller power rails. Use Value: Limits transient voltage to ≤344 V during 10/1000 µs surges, preventing damage to downstream 36 V-rated MOSFETs and LDOs. |
Use Scenario: Surge suppression on -48 V telecom battery feed lines exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Bidirectional shunt protector mounted directly at connector entry point. Use Value: Withstands 4 kV (IEC 61000-4-4 level 4) and clamps within 100 ns, preserving integrity of line-card ASICs. |
| Automotive Body Control Modules | AC-DC SMPS Inputs |
|
Use Scenario: Input protection for 12 V BCMs subjected to ISO 7637-2 pulse 1 (inductive kickback) and pulse 3a/b (switching noise). IC Role / Device Role / Timing Role: Secondary-level TVS after primary LC filter, absorbing residual energy not filtered out. Use Value: Maintains <0.5 µA leakage at 13.5 V nominal, avoiding battery drain while delivering 344 V clamping at 1.75 A. |
Use Scenario: Line-side surge protection in offline flyback converters used in LED drivers and appliance PSUs. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to suppress differential-mode transients. Use Value: 600 W 10/1000 µs rating handles repetitive surges from AC mains without degradation; DO-15 footprint fits high-density layouts. |
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 | VBR = 267–297 V; VCL = 414 V @ 1.45 A; PPP = 600 W; SMB package (surface-mount) | Requires PCB rework for SMT assembly; lower thermal resistance (RθJA ≈ 40 °C/W vs. DO-15's ~60 °C/W) | Select when board space is constrained and automated assembly is required. |
| 1.5KE250CA | VBR = 237–263 V; VCL = 360 V @ 1.67 A; PPP = 1500 W; DO-201 package (larger axial) | Higher surge margin (1500 W) but longer lead inductance limits high-frequency response | Select for legacy through-hole designs needing higher single-pulse robustness in non-speed-critical systems. |
Compared with P6KE250CA, SMBJ250CA offers superior thermal performance in compact layouts but sacrifices axial-lead serviceability; 1.5KE250CA provides 2.5× higher pulse power yet introduces greater parasitic inductance-critical for fast-edge ESD suppression.
Availability
P6KE250CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE250CA 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, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The P6KE series belongs to ST's high-reliability TVS portfolio targeting cost-sensitive, high-volume surge protection applications where planar junction stability, wide temperature range, and UL/IEC compliance are mandatory.
FAQ
What is the maximum clamping voltage of P6KE250CA under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 344 V at 1.75 A peak pulse current for a 10/1000 µs waveform, measured at 25 °C ambient. This value increases with junction temperature at a rate of 11 × 10⁻⁴ /°C, per the datasheet's αT coefficient.
Can P6KE250CA be used in AC line applications?
Yes - its bidirectional construction allows direct placement across AC lines (e.g., 120/230 V RMS) where symmetrical surge suppression is needed. The 250 V standoff rating supports use on 230 VAC inputs with appropriate safety margins and external current limiting.
How does P6KE250CA compare to unidirectional P6KE250A in layout and function?
P6KE250CA has identical VBR and VCL specs but conducts in both polarities, eliminating polarity sensitivity during board assembly. Its DO-15 package uses red tape on both ends, whereas P6KE250A marks cathode with red tape only - critical for correct orientation in DC circuits.
Is P6KE250CA compliant with RoHS and REACH?
Yes - it carries STMicroelectronics' ECOPACK2 designation, confirming full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, including restriction of SVHC substances below threshold levels.
P6KE250CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- 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)
P6KE250CA FAQ
1.How can I place an order for P6KE250CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE250CA 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 P6KE250CA reliable?
The price and inventory of P6KE250CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE250CA is usually 5 days.
3.What payment methods are accepted for P6KE250CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE250CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE250CA?
P6KE250CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE250CA 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 P6KE250CA?
For technical support, including P6KE250CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE250CA requirements.
6.How does Aetrix verify that P6KE250CA is sourced from the original manufacturer or authorized distributors?
All P6KE250CA 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 P6KE250CA meets industry standards.
7.What is the process for return or replacement of P6KE250CA?
All P6KE250CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE250CA, 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 P6KE250CA part is unused and in its original packaging.
Return procedure for P6KE250CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE250CA Tags
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