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STMicroelectronics P6KE47CARL
- Part No.:
- P6KE47CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CARL.pdf
- Description:
- TVS DIODE 40.2VWM 84VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,530
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Product details
Overview
P6KE47CARL from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode in DO-15 package, designed for high-energy ESD and surge protection in DC power lines and signal interfaces. It features a 47 V standoff voltage (VRM = 40 V), 64.8 V clamping voltage at 9.3 A (10/1000 µs), 600 W peak pulse power rating, and operates up to 175 °C junction temperature-used in industrial power supplies and telecom interface circuits.
For engineers reviewing the P6KE47CARL datasheet, P6KE47CARL pinout, P6KE47CARL application, or P6KE47CARL equivalent, key selection criteria include clamping voltage vs. surge current, bidirectional polarity, DO-15 thermal performance under repeated transients, and IEC 61000-4-2/4-4 compliance at system-level immunity testing.
Technical Context
This bidirectional TVS diode uses planar junction technology to achieve low leakage (<0.5 µA at VRM), stable VBR (44.7–49.4 V), and predictable dynamic resistance (RD = 1.66 Ω at 10/1000 µs). Its symmetrical breakdown behavior enables protection of AC-coupled or floating signal paths without polarity constraints.
The device sustains 600 W (10/1000 µs) at 25 °C ambient but derates to 300 W at Tj = 175 °C, with thermal impedance (Zth(j-a)) optimized for FR4 PCBs using standard DO-15 footprint. Junction capacitance remains below 100 pF at 1 MHz and VR = 0 V, supporting high-speed data line protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 40 V - maximum continuous reverse operating voltage before significant leakage |
| Breakdown Voltage (VBR) | 44.7–49.4 V @ 1 mA - ensures reliable triggering above normal operating rail |
| Clamping Voltage (VCL) | 64.8 V @ 9.3 A (10/1000 µs) - limits downstream voltage stress during surge events |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - protects against common lightning-induced surges per IEC 61000-4-5 |
| ESD Withstand (IEC 61000-4-2) | 30 kV contact & air discharge - exceeds Level 4 for robust board-level ESD immunity |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in harsh environments including industrial motor drives |
| Package | DO-15 (JEDEC DO-204AC) - industry-standard through-hole package with 260 °C soldering tolerance |
Pinout & Package
DO-15 package: axial-leaded, hermetically sealed glass body, matte tin-plated leads. Cathode band marked on one end; bidirectional symmetry means both terminals are functionally identical under reverse/forward surge conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Surge current path | Both terminals conduct equally during positive or negative transients-no polarity dependency |
| Case (glass body) | Thermal interface | No electrical connection; provides mechanical mounting and heat dissipation via PCB copper area |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge clamping | Enables single-device protection of AC signals or ungrounded buses without external polarity management |
| Low dynamic resistance (1.66 Ω) | Minimizes VCL rise under high-current surges, improving protection margin for 48 V systems |
| High-temperature operation (Tj ≤ 175 °C) | Supports placement near heat-generating components like MOSFETs or transformers in compact power designs |
| UL 497B certified (QVGQ2.E136224) | Validates suitability for telecom and industrial interface protection per safety agency requirements |
| IEC 61000-4-4 Level 4 compliance (4 kV) | Guarantees immunity to fast transient bursts in industrial control cabinets and PLC I/O modules |
Applications
| Industrial Power Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient overvoltage to <65 V during 10/1000 µs surges. Use Value: Prevents damage to upstream DC-DC converters and downstream microcontrollers by holding rail voltage within safe SOA limits. |
Use Scenario: RS-485 transceiver bus lines in outdoor base station equipment subject to induced lightning surges. IC Role / Device Role / Timing Role: Symmetrical clamping element protecting differential pair against ±4 kV EFT per IEC 61000-4-4. Use Value: Maintains signal integrity by limiting common-mode voltage excursion without adding capacitance-induced skew. |
| Automotive Body Control Module | Smart Meter Communication Port |
Use Scenario: LIN bus termination in vehicle door module where load dump and ISO 7637-2 pulses occur. IC Role / Device Role / Timing Role: Transient suppressor absorbing 100 A non-repetitive forward surge (IFSM) during battery disconnection events. Use Value: Survives high-energy transients while maintaining low leakage (<0.5 µA) to avoid battery drain in sleep mode. |
Use Scenario: HART modem interface in utility smart meters connected to 4–20 mA loops with long cable runs. IC Role / Device Role / Timing Role: Bidirectional protector handling both loop-powered polarity reversals and ESD events. Use Value: Eliminates need for dual unidirectional devices, reducing BOM count and PCB space in constrained meter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | DO-214AA package, 600 W rating, VBR = 44.7–49.4 V, VCL = 77 V @ 7.8 A (10/1000 µs) | Higher clamping voltage reduces protection margin; surface-mount form factor requires layout redesign | Select when SMT assembly is mandatory and higher VCL is acceptable for 48 V systems |
| 1.5KE47CA | DO-201AD package, 1500 W rating, VBR = 44.7–49.4 V, VCL = 73 V @ 20.5 A (10/1000 µs) | Higher power rating suits infrequent high-energy surges; larger package increases board area | Choose for legacy designs requiring higher surge headroom or compatibility with existing DO-201AD footprints |
Compared with SMBJ47CA and 1.5KE47CA, P6KE47CARL offers optimal balance of clamping performance, thermal robustness at elevated temperatures, and DO-15 compatibility-making it preferred for cost-sensitive, through-hole industrial power and telecom interface designs where precise VCL control is critical.
Availability
P6KE47CARL is available at Aetrix Electronics and suitable for industrial power input protection, telecom line interface, automotive body control modules, and smart meter communication ports requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P6KE47CARL 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.
P6KE is part of ST's broad TVS diode portfolio targeting board-level surge and ESD protection, engineered specifically for reliability in harsh environments with high junction temperature capability and stringent international immunity standards compliance.
FAQ
What is the difference between P6KE47A and P6KE47CA?
P6KE47A is unidirectional and protects only against surges of one polarity-ideal for DC rails with defined ground reference. P6KE47CA is bidirectional, providing symmetrical clamping for AC-coupled lines or floating interfaces. Both share identical VBR (44.7–49.4 V), VCL (64.8 V), and PPP (600 W), but CA types have no anode/cathode distinction in circuit use.
Can P6KE47CARL be used in surface-mount designs?
No-P6KE47CARL uses the DO-15 axial leaded package and is not compatible with SMT reflow or pick-and-place processes. For surface-mount equivalents, consider SMBJ47CA (DO-214AA) or SMCJ47CA (DO-214AB), which maintain similar electrical specs but require PCB footprint and assembly process changes.
How does junction temperature affect clamping voltage?
VCL increases linearly with junction temperature per coefficient αT = 10.1 × 10⁻⁴ /°C. At Tj = 125 °C, VCL rises ~10% above its 25 °C value (64.8 V → ~71.3 V). Designers must account for this derating when sizing heatsinking or estimating worst-case protection margin in high-ambient environments.
Is P6KE47CARL compliant with RoHS and REACH?
Yes-P6KE47CARL carries STMicroelectronics' ECOPACK2 environmental grade certification, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin plating, and the device is halogen-free per IEC 61249-2-21.
P6KE47CARL 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 84V
- Current - Peak Pulse (10/1000µs):
- 48A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 400pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE47CARL FAQ
1.How can I place an order for P6KE47CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CARL 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 P6KE47CARL reliable?
The price and inventory of P6KE47CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CARL is usually 5 days.
3.What payment methods are accepted for P6KE47CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CARL?
P6KE47CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CARL 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 P6KE47CARL?
For technical support, including P6KE47CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CARL requirements.
6.How does Aetrix verify that P6KE47CARL is sourced from the original manufacturer or authorized distributors?
All P6KE47CARL 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 P6KE47CARL meets industry standards.
7.What is the process for return or replacement of P6KE47CARL?
All P6KE47CARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CARL, 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 P6KE47CARL part is unused and in its original packaging.
Return procedure for P6KE47CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE47CARL Tags
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