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STMicroelectronics 1.5KE47CARL
- Part No.:
- 1.5KE47CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE47CARL.pdf
- Description:
- TVS DIODE 40.2VWM 84VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,128
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Product details
Overview
1.5KE47CARL from STMicroelectronics is a unidirectional 47 V transient voltage suppression (TVS) diode in DO-201 package, rated for 1500 W peak pulse power (10/1000 µs), 64.8 V clamping voltage at 23.2 A surge current, and operating junction temperature up to +175 °C. It protects DC power rails and signal lines in industrial power supplies and telecom interfaces against IEC 61000-4-2 ESD (±30 kV contact/air) and IEC 61000-4-4 EFT (4 kV level 4).
For engineers reviewing the 1.5KE47CARL datasheet, 1.5KE47CARL pinout, 1.5KE47CARL application, or 1.5KE47CARL equivalent, key selection criteria include clamping voltage (64.8 V), peak pulse current (23.2 A), stand-off voltage (47 V), junction temperature rating (+175 °C), and DO-201 mechanical compatibility with high-reliability board-level surge protection layouts.
Technical Context
This TVS diode uses planar silicon junction technology optimized for low leakage (<1 µA at 38.1 V) and stable clamping performance across temperature. Its unidirectional configuration provides asymmetric protection-forward conduction during positive transients and reverse-biased blocking during normal operation.
The device meets IEC 61000-4-2 (±30 kV), IEC 61000-4-4 (4 kV), and UL 497B requirements, with thermal design support via JESD22-B102 E3 solderability and MSL level 1 handling-enabling robust reflow assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRM) | 47 V - maximum continuous reverse working voltage before breakdown |
| Breakdown Voltage (VBR) | 40.2–49.4 V at 1 mA - ensures reliable triggering within ±10% tolerance band |
| Clamping Voltage (VCL) | 64.8 V at 23.2 A (10/1000 µs) - limits downstream voltage stress during surge events |
| Peak Pulse Power | 1500 W (10/1000 µs) - sustains short-duration energy surges without failure |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in harsh environments including industrial motor drives |
| Leakage Current (IRM) | ≤1 µA at 38.1 V - minimizes standby power loss in battery-backed or low-power systems |
| Dynamic Resistance (RD) | 0.664 Ω - determines voltage rise per amp of surge current beyond rated IPP |
Pinout & Package
1.5KE47CARL is housed in a DO-201 axial-leaded package (8.5–9.5 mm length, 4.8–5.3 mm diameter, 0.96–1.06 mm lead diameter), with cathode identified by band marking and compatible with wave/reflow soldering per J-STD-020 MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts during positive transients |
| Cathode | Reverse-biased blocking terminal | Marked end; connects to higher-potential rail; blocks normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature reliability | Rated for continuous operation up to +175 °C junction temperature-enables use in enclosed power converters |
| Low dynamic resistance | 0.664 Ω-reduces clamping voltage overshoot under fast-rising surges (e.g., lightning-induced) |
| IEC 61000-4-2 compliance | Withstands ±30 kV air and contact discharge-meets industrial immunity standards without external filtering |
| Planar junction construction | Delivers stable VBR and low leakage (<1 µA)-critical for precision analog front-ends and sensor interfaces |
Applications
| Industrial SMPS Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: 48 V DC input stage of DIN-rail mounted switch-mode power supply exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp positive surges while blocking reverse leakage during nominal operation. Use Value: Clamps transients to ≤64.8 V, protecting downstream rectifier, controller IC, and bulk capacitor from overvoltage stress exceeding 75 V. | Use Scenario: Primary-side protection on RS-485 or Ethernet PHY interface lines in outdoor base station equipment. IC Role / Device Role / Timing Role: Standoff-rated TVS connected line-to-ground to suppress ESD and EFT events without affecting signal integrity at 10 Mbps. Use Value: Withstands ±30 kV IEC 61000-4-2 discharges while maintaining <1 µA leakage-preserving common-mode range and receiver sensitivity. |
| Automotive Body Control Module | Medical Power Supply Input Stage |
Use Scenario: 12 V battery-fed microcontroller power rail in BCM subject to ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS installed at power entry point to absorb negative-going load dump spikes and positive switching transients. Use Value: Sustains 1500 W (10/1000 µs) surges and operates reliably at +175 °C ambient-meeting AEC-Q200 stress screening requirements. | Use Scenario: AC/DC adapter input stage powering Class II medical devices requiring reinforced isolation and low leakage. IC Role / Device Role / Timing Role: Primary-side TVS suppressing line surges before bridge rectifier to prevent transformer insulation breakdown. Use Value: UL 497B certification and <1 µA leakage ensure compliance with IEC 60601-1 creepage/clearance and patient leakage current limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47A | DO-214AA package; 64.8 V clamping at 23.2 A; same VBR (40.2–49.4 V); lower 600 W rating | Surface-mount only; unsuitable for through-hole legacy designs or high-current axial layouts | Select when PCB space is constrained and reflow assembly is mandatory |
| 1N6287 | Same DO-201 package; 64.8 V clamping; identical VBR and IPP; manufactured by ON Semiconductor | No UL 497B listing; lacks IEC 61000-4-4 level 4 validation | Select for cost-sensitive industrial applications where UL/IEC certification is not required |
Compared with SMBJ47A and 1N6287, 1.5KE47CARL delivers full 1500 W surge capability in axial form factor with certified IEC/UL compliance-making it optimal for safety-critical, high-energy, through-hole power rail protection where regulatory traceability is mandatory.
Availability
1.5KE47CARL is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, automotive body control modules, and medical AC/DC adapters requiring stable component supply and long-term lifecycle continuity.
Supply support for 1.5KE47CARL 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The 1.5KE series belongs to ST's high-reliability TVS portfolio, engineered specifically for robust board-level surge protection in mission-critical power and interface circuits where thermal stability and regulatory compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of 1.5KE47CARL at 23.2 A?
The maximum clamping voltage (VCL) of 1.5KE47CARL is 64.8 V under a 10/1000 µs surge waveform at 23.2 A peak current. This value is measured at Tj = 25 °C and increases linearly with junction temperature using αT = 10.1 × 10⁻⁴ /°C, reaching ~71.2 V at +175 °C.
Is 1.5KE47CARL RoHS-compliant and halogen-free?
Yes, 1.5KE47CARL is RoHS-compliant and manufactured in ST's ECOPACK2-grade DO-201 package, meeting JEDEC JS709C and IEC 61249-2-21 requirements for bromine- and chlorine-free materials. Lead finish is matte tin plating, and no exemptions apply.
Can 1.5KE47CARL be used in bidirectional protection configurations?
No-1.5KE47CARL is unidirectional (denoted by "A" suffix). For bidirectional protection, use 1.5KE47CARL's counterpart 1.5KE47CARL (CA type), which features symmetrical clamping in both polarities and identical VBR/VCL ratings.
What is the recommended PCB pad layout for DO-201 mounting?
ST recommends 2.5 mm wide × 8 mm long copper pads per lead, with ≥10 mm² total copper area under each terminal to maintain thermal resistance below 40 °C/W. Via stitching to internal ground planes is advised for high-surge applications to reduce inductance and improve clamping response.
1.5KE47CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 119A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1025pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE47CARL FAQ
1.How can I place an order for 1.5KE47CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE47CARL 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 1.5KE47CARL reliable?
The price and inventory of 1.5KE47CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE47CARL is usually 5 days.
3.What payment methods are accepted for 1.5KE47CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE47CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE47CARL?
1.5KE47CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE47CARL 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 1.5KE47CARL?
For technical support, including 1.5KE47CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE47CARL requirements.
6.How does Aetrix verify that 1.5KE47CARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE47CARL 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 1.5KE47CARL meets industry standards.
7.What is the process for return or replacement of 1.5KE47CARL?
All 1.5KE47CARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE47CARL, 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 1.5KE47CARL part is unused and in its original packaging.
Return procedure for 1.5KE47CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE47CARL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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