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STMicroelectronics P6KE250ARL
- Part No.:
- P6KE250ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE250ARL.pdf
- Description:
- TVS DIODE 213VWM 442VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:44,288
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Product details
Overview
P6KE250ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, designed for primary-level surge protection in DC power lines and signal interfaces. It features a 250 V nominal breakdown voltage (VBR = 237–263 V), 344 V maximum clamping voltage at 1.75 A (10/1000 µs), 1.99 Ω dynamic resistance, and operates up to +175 °C junction temperature-used in industrial power supplies and telecom line cards.
For engineers reviewing the P6KE250ARL datasheet, P6KE250ARL pinout, P6KE250ARL application, or P6KE250ARL equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC, peak pulse current capability under IEC 61000-4-4 level 4 (4 kV), thermal derating above 25 °C, and DO-15 footprint compatibility with high-reliability PCB layouts.
Technical Context
This unidirectional TVS diode uses planar silicon junction technology to achieve low leakage (<0.5 µA at 204 V), stable VBR temperature coefficient (αT = 11 × 10−4/°C), and robust surge handling up to 442 A (8/20 µs). Its DO-15 axial lead package supports manual and wave soldering per J-STD-002 E3 and MIL-STD-750 method 2026.
The device complies with IEC 61000-4-2 (30 kV contact/air discharge) and IEC 61000-4-4 (4 kV level 4), delivering 344 V clamping at 1.75 A (10/1000 µs) and 442 V at 9 A (8/20 µs), with dynamic resistance tightly specified at 1.99 Ω to ensure predictable voltage limiting during fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 237 / 250 / 263 V - defines minimum voltage at which avalanche conduction begins reliably at 1 mA, critical for coordination with downstream overvoltage thresholds. |
| VCL (10/1000 µs) | 344 V at 1.75 A - maximum voltage seen by protected circuit during 10/1000 µs surge, directly limiting stress on downstream components. |
| VCL (8/20 µs) | 442 V at 9 A - clamping performance under faster, higher-energy lightning-induced surges per IEC 61000-4-4. |
| RD | 1.99 Ω - dynamic resistance determines slope of V-I curve during clamping; lower value improves voltage regulation under varying surge currents. |
| IPP (10/1000 µs) | 1.75 A - peak pulse current corresponding to rated 600 W dissipation at Tamb = 25 °C, used for basic surge rating validation. |
| Tj max | +175 °C - maximum junction temperature enabling operation in high-ambient environments like enclosed power converters without derating. |
| IR at VRM | 0.5 µA at 204 V - reverse leakage ensures minimal standby power loss and avoids false triggering in high-impedance sensing circuits. |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking; leads are matte tin-plated for solderability and RoHS compliance. Dimensions: A = 6.05–6.75 mm (body length), B = 26–31 mm (lead length), C = 2.95–3.53 mm (body diameter), D = 0.71–0.88 mm (lead diameter).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration; must be routed with low-inductance path to handle surge return current. |
| Cathode (banded end) | Avalanche conduction terminal during reverse surge | Connected to protected line; band identifies polarity for correct orientation-reversal causes permanent failure under surge conditions. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD immunity | 30 kV air/contact discharge - exceeds Level 4, enabling direct interface protection without external RC networks in industrial HMI ports. |
| High-temperature reliability | Rated to +175 °C junction - maintains clamping performance in sealed power supplies where ambient exceeds 105 °C. |
| Low dynamic resistance | 1.99 Ω - minimizes voltage overshoot during fast-rising transients, improving margin for 24 V or 48 V system ICs with 36 V absolute max ratings. |
| Planar junction construction | Enables <0.5 µA leakage at 204 V - critical for battery-backed systems and precision analog front-ends where standby current must remain sub-µA. |
| UL 497B recognition | File QVGQ2.E136224 - validates suitability for telecom and industrial data line protection per UL safety standards. |
Applications
| Industrial Power Supply Input | Telecom Line Card Protection |
|---|---|
Use Scenario: 48 V DC input stage of DIN-rail mounted PLC power module exposed to load dump and inductive switching transients. IC Role / Device Role: Primary overvoltage clamp placed upstream of input filter and DC-DC controller. Use Value: Clamps 442 V surges (8/20 µs) to protect 60 V-rated MOSFETs and electrolytic capacitors, extending field life in factory automation environments. |
Use Scenario: T1/E1 interface board in central office equipment subject to lightning-induced longitudinal surges on twisted-pair lines. IC Role / Device Role: First-stage surge suppressor on tip/ring lines before transformer coupling and line driver ICs. Use Value: Limits induced voltages to ≤344 V (10/1000 µs), preventing latch-up in DS2155 transceivers and maintaining bit error rate compliance. |
| Automotive Body Control Module | Smart Meter AC Mains Interface |
Use Scenario: 12 V supply rail in BCM exposed to ISO 7637-2 pulse 1 (−150 V) and pulse 3a/b (fast transients). IC Role / Device Role: Reverse-polarity and surge protector on fused battery feed, paired with polyfuse. Use Value: Withstands 175 °C junction temperature during engine bay operation while clamping negative transients to safe levels for microcontroller I/O. |
Use Scenario: Voltage measurement input of Class 0.5 smart meter connected to 230 V AC mains via resistive divider. IC Role / Device Role: Overvoltage limiter on divider output node feeding ADC reference and isolation amplifier. Use Value: Prevents ADC saturation during 4 kV IEC 61000-4-4 surges, preserving meter accuracy and avoiding firmware reset events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A | Same VBR range (237–263 V) but SMC package; 600 W rating at 10/1000 µs; 344 V VCL; 1.99 Ω RD; 175 °C Tj max. | Surface-mount SMC footprint requires PCB redesign; better thermal dissipation in high-volume automated assembly. | Select when board space allows SMC and reflow process is optimized; avoid if legacy through-hole manufacturing is fixed. |
| 1.5KE250A | Higher 1500 W rating (10/1000 µs); same VBR and VCL; DO-201 package (larger than DO-15); 175 °C Tj max. | Used where surge energy exceeds 600 W, e.g., outdoor AC input stages; larger body increases creepage/clearance. | Choose only if validated surge testing shows >600 W requirement; otherwise, P6KE250ARL offers tighter footprint and lower cost. |
Compared with SMBJ250A and 1.5KE250A, P6KE250ARL delivers identical electrical protection in a smaller DO-15 axial package ideal for manual assembly, repairable designs, and space-constrained through-hole layouts-without sacrificing thermal or surge performance.
Availability
P6KE250ARL is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automotive body control modules, and smart meter AC interfaces requiring stable component supply across long production lifecycles.
Supply support for P6KE250ARL 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 robust overvoltage protection in harsh environments-engineered for stable clamping, low leakage, and extended temperature operation in mission-critical power and interface circuits.
FAQ
What is the maximum clamping voltage of P6KE250ARL 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 Tamb = 25 °C. This value increases with junction temperature at a rate defined by αT = 11 × 10−4/°C, reaching ~362 V at Tj = 125 °C using the formula VCL(Tj) = VCL(25 °C) × [1 + αT × (Tj − 25)].
Can P6KE250ARL be used in bidirectional signal lines?
No-P6KE250ARL is unidirectional (indicated by "A" suffix) and conducts only in reverse bias. For bidirectional protection (e.g., RS-485, USB), use P6KE250CA, which has symmetrical clamping in both polarities and identical VBR and VCL specs in either direction.
What is the recommended PCB layout for optimal thermal performance?
Mount P6KE250ARL with ≥1 cm² copper area under each lead on FR4 PCB (70 µm Cu thickness) to achieve Rth(j-a) ≈ 3.5 °C/W. Avoid narrow traces; use thermal reliefs only on non-current-carrying pads. Keep distance ≥2 mm from heat sources like transformers or MOSFETs to prevent ambient-induced derating.
Does P6KE250ARL meet UL 497B for telecom surge protection?
Yes-P6KE250ARL is listed under UL 497B file QVGQ2.E136224, certifying compliance with UL's requirements for primary protector devices in telecommunications circuits, including dielectric withstand, surge current endurance, and flammability (UL94 V0).
P6KE250ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- 310pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE250ARL FAQ
1.How can I place an order for P6KE250ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE250ARL 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 P6KE250ARL reliable?
The price and inventory of P6KE250ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE250ARL is usually 5 days.
3.What payment methods are accepted for P6KE250ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE250ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE250ARL?
P6KE250ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE250ARL 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 P6KE250ARL?
For technical support, including P6KE250ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE250ARL requirements.
6.How does Aetrix verify that P6KE250ARL is sourced from the original manufacturer or authorized distributors?
All P6KE250ARL 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 P6KE250ARL meets industry standards.
7.What is the process for return or replacement of P6KE250ARL?
All P6KE250ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE250ARL, 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 P6KE250ARL part is unused and in its original packaging.
Return procedure for P6KE250ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE250ARL Tags
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