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STMicroelectronics P6KE300ARL
- Part No.:
- P6KE300ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE300ARL.pdf
- Description:
- TVS DIODE 256VWM 529VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:1,668
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Product details
Overview
P6KE300ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, designed for primary-level surge protection in DC power rails and signal lines. It features a 300 V breakdown voltage (VBR = 285–315 V), 414 V maximum clamping voltage (VCL) at 1.45 A peak pulse current (IPP), and operates up to 175 °C junction temperature - deployed in industrial power supplies and telecom interface circuits.
For engineers reviewing the P6KE300ARL datasheet, P6KE300ARL pinout, P6KE300ARL application, or P6KE300ARL equivalent, key selection criteria include clamping performance at 10/1000 µs, thermal derating above 25 °C, unidirectional polarity marking, and compliance with IEC 61000-4-2 (±30 kV contact/air) and IEC 61000-4-4 (4 kV level 4).
Technical Context
This TVS diode uses planar silicon junction technology optimized for low leakage (<0.5 µA at VRM = 256 V) and stable VBR drift (αT = 11 × 10−4/°C). Its unidirectional configuration enables cathode-anode polarity alignment with DC rail orientation, supporting fast response to ESD transients (tr < 1 ns) and repetitive surges up to 100 A non-repetitive forward surge current (IFSM).
The device's dynamic resistance (RD = 28.2 Ω at 10/1000 µs) directly governs VCL rise under surge: VCL = VBR(max) + RD × IPP. At Tj = 175 °C, peak pulse power remains rated at 300 W (10/1000 µs), enabling reliable operation in thermally constrained enclosures without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 285 / 300 / 315 V - ensures consistent triggering above nominal DC rail voltage with ±5% tolerance |
| VCL @ IPP = 1.45 A | 414 V - clamps transient energy below system overvoltage threshold during 10/1000 µs surge |
| IPP (10/1000 µs) | 1.45 A - defines maximum surge current the device safely diverts without degradation |
| RD (dynamic resistance) | 28.2 Ω - determines VCL slope vs. IPP; lower RD improves clamping tightness |
| Tj operating range | −55 to +175 °C - supports deployment in high-ambient environments like base station power modules |
| IEC 61000-4-2 ESD rating | ±30 kV air/contact discharge - exceeds Level 4 immunity for front-panel interfaces and sensor inputs |
| Leakage current @ VRM | ≤0.5 µA at 256 V - minimizes standby power loss in battery-backed or low-power systems |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with matte tin-plated leads; cathode identified by band marking on body. Dimensions: A = 6.05–6.75 mm (length), B = 26–31 mm (lead spacing), C = 2.95–3.53 mm (diameter), D = 0.71–0.88 mm (lead diameter).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point during forward conduction | Connected to protected line side; must be placed upstream of sensitive IC inputs |
| Cathode (banded end) | Current exit point during reverse-biased clamping | Connected to ground or return path; polarity critical for unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| Peak pulse power (10/1000 µs) | 600 W at 25 °C, derated to 300 W at Tj = 175 °C - enables robust protection in compact layouts |
| Clamping ratio (VCL/VBR) | 1.38 - balances low VBR margin with safe VCL headroom for 300 V nominal rails |
| ESD immunity | ±30 kV per IEC 61000-4-2 - eliminates need for secondary ESD stages in industrial HMI designs |
| Thermal stability | αT = 11 × 10−4/°C - ensures predictable VBR shift across full operating temperature range |
| Lead finish | Matte tin plating - compatible with Pb-free reflow (J-STD-020 MSL level 1) and wave soldering |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Surge Suppression |
|---|---|
|
Use Scenario: 24–48 V DC input stage of programmable logic controllers exposed to lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Primary shunt protector clamping transients before they reach upstream DC-DC converters and microcontrollers. Use Value: Withstands 10/1000 µs surges up to 1.45 A while maintaining VCL ≤ 414 V, preventing latch-up or burnout of downstream 3.3 V/5 V logic. |
Use Scenario: RS-485 data lines in outdoor base stations subjected to induced surges from nearby AC mains or antenna coupling. IC Role / Device Role / Timing Role: Unidirectional TVS placed between differential pair and ground to suppress common-mode transients without distorting signal integrity. Use Value: Low dynamic resistance (28.2 Ω) limits VCL overshoot during fast 8/20 µs events, preserving receiver common-mode range and bit error rate. |
| Automotive Body Control Module (BCM) Power Rail | Smart Meter AC/DC Power Entry Stage |
|
Use Scenario: 12 V battery-supplied BCM modules enduring load dump and ISO 7637-2 pulse 5a (75 V, 100 ms). IC Role / Device Role / Timing Role: Standoff protector absorbing slow-rising overvoltages while allowing normal 12–14 V operation with sub-µA leakage. Use Value: VBR = 285–315 V avoids false triggering during cranking transients; Tj max = 175 °C sustains reliability in engine bay mounting. |
Use Scenario: Mains-connected smart meters requiring IEC 61000-4-4 level 4 (4 kV) immunity on AC input rectifier output. IC Role / Device Role / Timing Role: Secondary TVS after MOV, limiting residual clamping voltage to protect bulk capacitor and controller ICs. Use Value: 414 V VCL at 1.45 A ensures capacitor voltage stays below 450 V rating during surge, avoiding premature failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300A | Same VBR (285–315 V), but SMC package (higher IPP = 2.2 A, lower RD = 19.5 Ω) | Better clamping performance for higher-energy surges; requires larger PCB footprint | Select when 10/1000 µs surge current exceeds 1.45 A or thermal margin is constrained |
| 1.5KE300A | Same VBR, but higher PPP = 1500 W (10/1000 µs); DO-201 package; RD = 23.5 Ω | Higher single-pulse energy handling; less suitable for repetitive surges due to lower thermal mass | Select for infrequent, high-amplitude transients where peak power > 600 W is required |
Compared with SMBJ300A and 1.5KE300A, P6KE300ARL offers optimal balance of axial-leaded manufacturability, 600 W surge rating, and DO-15 footprint compatibility with legacy through-hole designs - making it ideal for cost-sensitive industrial power modules requiring proven reliability and JEDEC-standard assembly.
Availability
P6KE300ARL is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line interface surge suppression, and automotive body control module (BCM) power rail applications requiring stable component supply and long-term lifecycle support.
Supply support for P6KE300ARL 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, specializing in power management, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.
P6KE300ARL belongs to ST's P6KE series of planar-junction TVS diodes, engineered specifically for high-reliability, high-temperature surge protection in DC power distribution networks and signal interfaces where low leakage and stable VBR drift are critical.
FAQ
What is the maximum clamping voltage of P6KE300ARL at 1.45 A?
The maximum clamping voltage (VCL) of P6KE300ARL is 414 V when subjected to a 10/1000 µs surge current of 1.45 A at Tj = 25 °C. This value increases linearly with junction temperature using αT = 11 × 10−4/°C, reaching ~442 V at Tj = 125 °C per the VCL vs. Tj formula in DS0681.
Is P6KE300ARL suitable for bidirectional signal line protection?
No - P6KE300ARL is unidirectional (denoted by "A" suffix) and must be installed with correct anode-cathode polarity relative to the protected DC rail. For bidirectional protection (e.g., AC lines or differential buses), use P6KE300CA, which has symmetrical breakdown in both directions and identical VBR and VCL ratings.
What is the leakage current specification at rated standoff voltage?
At VRM = 256 V and Tj = 25 °C, the maximum reverse leakage current (IRM) is 0.5 µA. Leakage rises exponentially with temperature: at Tj = 125 °C, it reaches ~120 nA; at Tj = 175 °C, it remains below 1 µA - verified in Figure 9 of DS0681 Rev 9.
Does P6KE300ARL comply with RoHS and halogen-free requirements?
Yes - P6KE300ARL is manufactured in ST's ECOPACK2-compliant DO-15 package, meeting RoHS Directive 2011/65/EU and halogen-free standards (IEC 61249-2-21). The matte tin lead finish and epoxy molding compound are fully compliant, with material declarations available via ST's product environmental page.
P6KE300ARL 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):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 529V
- Current - Peak Pulse (10/1000µs):
- 7.6A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 290pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE300ARL FAQ
1.How can I place an order for P6KE300ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE300ARL 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 P6KE300ARL reliable?
The price and inventory of P6KE300ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE300ARL is usually 5 days.
3.What payment methods are accepted for P6KE300ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE300ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE300ARL?
P6KE300ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE300ARL 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 P6KE300ARL?
For technical support, including P6KE300ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE300ARL requirements.
6.How does Aetrix verify that P6KE300ARL is sourced from the original manufacturer or authorized distributors?
All P6KE300ARL 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 P6KE300ARL meets industry standards.
7.What is the process for return or replacement of P6KE300ARL?
All P6KE300ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE300ARL, 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 P6KE300ARL part is unused and in its original packaging.
Return procedure for P6KE300ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE300ARL Tags
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