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STMicroelectronics 1.5KE220CARL
- Part No.:
- 1.5KE220CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220CARL.pdf
- Description:
- TVS DIODE 188VWM 388VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,138
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Product details
Overview
1.5KE220CARL from STMicroelectronics is a bidirectional Transil™ TVS diode designed for high-energy transient voltage suppression in DC power lines and signal interfaces. It delivers 1500 W peak pulse power (10/1000 µs), has a breakdown voltage of 209–231 V, clamps to ≤328 V at 4.6 A, and features low dynamic impedance (10.8 °C/W junction-to-lead thermal resistance) for rapid response in industrial power supply protection.
For engineers reviewing the 1.5KE220CARL datasheet, 1.5KE220CARL pinout, 1.5KE220CARL application, or 1.5KE220CARL equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, standoff voltage compatibility with system operating voltage, thermal derating on PCB layout, and UL 497B certification for telecom surge compliance.
Technical Context
This device operates as a voltage-clamping avalanche diode, triggered when reverse voltage exceeds its specified breakdown range (VBR = 209–231 V). Its bidirectional configuration enables symmetrical protection against both positive and negative transients without polarity dependency.
Clamping performance is defined by VCL ≤ 328 V at IPP = 4.6 A (10/1000 µs waveform), with leakage current <1 µA at 188 V and capacitance ≤625 pF at 0 V (1 MHz). Thermal resistance Rth(j-l) = 20 °C/W ensures effective heat dissipation during repetitive surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (10/1000 µs): Sustains single high-energy surges per IEC 61000-4-5 Level 4 without failure |
| Breakdown Voltage | 209–231 V: Ensures reliable triggering above 200 V nominal DC bus while avoiding false trips |
| Clamping Voltage | ≤328 V @ 4.6 A: Limits stress on downstream 300 V-rated MOSFETs or bridge rectifiers |
| Leakage Current | <1 µA @ 188 V: Minimizes standby power loss in always-on 220 VAC-derived supplies |
| Capacitance | 625 pF @ 0 V, 1 MHz: Compatible with <1 MHz analog sensing lines but not high-speed data buses |
| Thermal Resistance | Rth(j-l) = 20 °C/W: Enables direct PCB copper pour heatsinking without external thermal vias |
| UL Certification | UL 497B File QVGQ2.E136224: Validated for telecom line interface surge protection per ANSI/UL standards |
Pinout & Package
Supplied in DO-201 axial lead package (8.5–9.5 mm length × 4.8–5.3 mm diameter), with cathode band marking on one end. Leads are tin-plated, lead-free, and rated for 230 °C soldering (10 s at 5 mm from case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (banded end) | Transient return path for negative excursions | Completes bidirectional clamping loop; connects to ground or low-impedance reference plane |
| Cathode (unmarked end) | Transient return path for positive excursions | Connects to protected line; symmetric conduction eliminates polarity sensitivity |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Protects AC-coupled or floating DC rails without external polarity management circuitry |
| Low clamping factor (VCL/VBR ≈ 1.57) | Minimizes overvoltage overshoot relative to breakdown threshold, improving margin for 250 V-rated components |
| Fast response time (<1 ns) | Activates before induced transients propagate into sensitive analog front-ends or microcontroller I/O |
| UL 497B certified | Meets regulatory requirements for primary-side surge protection in telecom and industrial Ethernet equipment |
| ECOPACK® compliant packaging | Lead-free, RoHS-compliant epoxy meets UL94 V0 flammability standard for safety-critical enclosures |
Applications
| Industrial AC/DC Power Supply Input | Telecom Line Interface Protection |
|---|---|
Use Scenario: Surge suppression on 220 VAC input stage prior to bridge rectifier and bulk capacitor. IC Role / Device Role / Timing Role: Voltage-clamping transient protector placed across L-N and L/N-GND. Use Value: Limits let-through voltage to ≤328 V during 4 kV/2 Ω combination wave surges, preserving rectifier and PFC controller reliability. | Use Scenario: Protection of RS-485 transceivers connected to outdoor field wiring. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair and common-mode lines entering isolated data interface. Use Value: Clamps EFT/burst and lightning-induced transients to safe levels (<330 V), preventing latch-up or gate oxide damage in ±15 V tolerant transceivers. |
| Motor Drive DC Bus Snubbing | Renewable Energy Inverter DC Link |
Use Scenario: Suppression of switching spikes on 200–250 V DC bus feeding IGBT half-bridge. IC Role / Device Role / Timing Role: Parallel-connected clamping device across bus terminals to absorb inductive kickback energy. Use Value: Absorbs up to 1500 W peak energy during IGBT turn-off, reducing voltage overshoot below 300 V rating of 600 V IGBTs. | Use Scenario: Overvoltage protection on photovoltaic string output (200–220 V MPPT range) feeding grid-tie inverter. IC Role / Device Role / Timing Role: Bidirectional clamp on DC+ and DC− inputs to safeguard MPPT controller and isolation stage. Use Value: Withstands repeated solar array surge events (IEC 61643-31 Class II) while maintaining <1 µA leakage to avoid daytime power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Lower peak power (600 W), smaller SMB package (lower thermal mass), higher clamping ratio (VCL/VBR ≈ 1.65) | Suitable for space-constrained PCBs but requires derating above 100 kHz surge repetition | Select when board area is critical and surge duty cycle is low; verify thermal rise under burst conditions |
| 1.5SMC220CA | Same 1500 W rating, SMC package (surface-mount), slightly higher VBR tolerance (±5% vs ±4.5%), lower Rth(j-a) (10 °C/W) | Better suited for automated assembly and high-density layouts; requires reflow profile validation | Prefer for new SMT designs where DO-201 axial leads conflict with layout or automation requirements |
Compared with SMBJ220CA and 1.5SMC220CA, the 1.5KE220CARL offers superior thermal robustness in through-hole applications, higher surge repetition capability due to DO-201's larger copper mass, and proven field reliability in legacy industrial power systems - making it optimal for high-reliability, manually assembled, or thermally demanding deployments.
Availability
1.5KE220CARL is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, telecom line interfaces, motor drive DC bus protection, and renewable energy inverter DC link applications requiring stable component supply across extended product lifecycles.
Supply support for 1.5KE220CARL 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 automotive, industrial, and power discrete solutions with vertical manufacturing capabilities and broad IP portfolio.
The 1.5KE series belongs to ST's Transil™ TVS diode family, engineered specifically for high-power, high-reliability transient suppression in harsh industrial and infrastructure environments where long-term stability and UL certification are mandatory.
FAQ
What is the meaning of 'RL' in the part number 1.5KE220CARL?
The 'RL' suffix indicates tape-and-reel packaging: 1900 units per reel, optimized for automated SMT placement equipment. This differs from 'ammopack' (600 units) used for manual or semi-automated assembly. The 'CA' denotes bidirectional configuration, and '220' specifies nominal breakdown voltage of 220 V.
Can 1.5KE220CARL be used in AC mains applications?
Yes - it is rated for continuous reverse working voltage (VRWM) of 188 V, making it suitable for 220 VAC RMS systems (peak ~311 V) when applied across L-N or L/N-GND with appropriate current-limiting impedance. Its 1500 W surge rating meets IEC 61000-4-5 Level 4 requirements for industrial mains interfaces.
How does the bidirectional version differ electrically from unidirectional 1.5KE220A?
The 1.5KE220CA has identical VBR, VCL, and PPP specs but conducts in both directions - enabling protection of floating or AC-coupled nodes without polarity concerns. Unidirectional 1.5KE220A only clamps positive transients on its cathode and requires correct orientation; it exhibits negligible leakage in reverse bias but no negative clamping action.
Is thermal derating required for operation above 25 °C ambient?
Yes - peak pulse power must be linearly derated above 25 °C using the curve in Figure 3 of the datasheet. At 75 °C ambient, maximum allowable PPP drops to 5 W for continuous operation (not surge), while short-duration pulses retain full 1500 W rating if junction temperature stays below 175 °C - verified via thermal modeling or IR measurement.
1.5KE220CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 388V
- Current - Peak Pulse (10/1000µs):
- 26A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 312.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE220CARL FAQ
1.How can I place an order for 1.5KE220CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220CARL 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 1.5KE220CARL reliable?
The price and inventory of 1.5KE220CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220CARL is usually 5 days.
3.What payment methods are accepted for 1.5KE220CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220CARL?
1.5KE220CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220CARL 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 1.5KE220CARL?
For technical support, including 1.5KE220CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220CARL requirements.
6.How does Aetrix verify that 1.5KE220CARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE220CARL 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 1.5KE220CARL meets industry standards.
7.What is the process for return or replacement of 1.5KE220CARL?
All 1.5KE220CARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220CARL, 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 1.5KE220CARL part is unused and in its original packaging.
Return procedure for 1.5KE220CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220CARL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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