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STMicroelectronics 1.5KE200ARL
- Part No.:
- 1.5KE200ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE200ARL.pdf
- Description:
- TVS DIODE 171VWM 353VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,840
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Product details
Overview
1.5KE200ARL from STMicroelectronics is a unidirectional transient voltage suppression (TVS) diode in DO-201 package, designed for high-energy surge protection in power supply inputs and DC bus lines. It features a 200 V standoff voltage (VRM), 274 V clamping voltage at 5.5 A peak pulse current (10/1000 µs), 1500 W peak pulse power rating, and operates up to 175 °C junction temperature - deployed in industrial SMPS and telecom rectifier modules.
For engineers reviewing the 1.5KE200ARL datasheet, 1.5KE200ARL pinout, 1.5KE200ARL application, or 1.5KE200ARL equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, IPP derating at elevated Tj, DO-201 thermal pad layout compatibility, and IEC 61000-4-2/4-4 compliance validation for end-equipment certification.
Technical Context
This unidirectional TVS diode uses planar junction technology to achieve low leakage (<1 µA at 171 V), stable VBR with ±5% tolerance (190–210 V), and predictable clamping behavior governed by dynamic resistance (RD = 5.5 Ω). Its 10/1000 µs waveform response enables robust protection against lightning-induced surges and inductive switching transients.
The device's thermal design supports sustained operation at Tj = 175 °C, where peak pulse power remains ≥1100 W (10/1000 µs), and its DO-201 package provides mechanical robustness for through-hole mounting in high-vibration environments such as railway power converters and solar string combiners.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 200 V - Maximum continuous reverse operating voltage before breakdown |
| Breakdown Voltage (VBR) | 190–210 V at 1 mA - Ensures reliable triggering without false trips under nominal DC bias |
| Clamping Voltage (VCL) | 274 V at 5.5 A (10/1000 µs) - Limits transient voltage seen by downstream MOSFETs or controllers |
| Peak Pulse Power (PPP) | 1500 W (10/1000 µs) - Sustains single-event surges per IEC 61000-4-5 Level 4 |
| Junction Temperature Range | −55 to +175 °C - Enables deployment in under-hood automotive power modules and outdoor base stations |
| ESD Withstand (IEC 61000-4-2) | 30 kV contact/air discharge - Exceeds Level 4 for front-panel interface protection |
| Dynamic Resistance (RD) | 5.5 Ω - Predictable VCL rise vs. IPP enables accurate system-level clamping margin calculation |
Pinout & Package
1.5KE200ARL is housed in a DO-201 axial-leaded package with cathode band marking. The device has two terminals: anode and cathode. Standard DO-201 dimensions: body length 8.5–9.5 mm, diameter 4.8–5.3 mm, lead diameter 0.96–1.06 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to ground or low-impedance return path in unidirectional clamp configuration |
| Cathode | Current exit during reverse avalanche | Connected to protected line (e.g., +48 V DC input); marked with band for polarity identification |
Key Features
| Feature | Design Value |
|---|---|
| High-Temperature Operation | Rated for full 1500 W surge capability up to Tj = 175 °C - eliminates derating in sealed enclosures |
| Low Leakage Current | <1 µA at 171 V (90% VRM) - prevents standby power loss in always-on systems |
| IEC 61000-4-4 Compliance | Withstands 4 kV EFT bursts - protects AC/DC adapters and PoE injectors from repetitive switching noise |
| UL 497B Recognition | QVGQ2.E136224 certified - satisfies safety agency requirements for telecom and industrial equipment |
| Planar Junction Construction | Enables tight VBR tolerance and stable RD across temperature - critical for predictable clamping in wide-temp designs |
Applications
| Industrial SMPS Input Protection | Telecom Rectifier Module |
|---|---|
Use Scenario: 48 V DC input stage of DIN-rail mounted switch-mode power supply exposed to load dump and lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +48 V rail and chassis ground to clamp transients before they reach primary-side controller and bulk capacitor. Use Value: 274 V clamping ensures protected controller IC (rated to 300 V max) remains within safe operating area during 1 kA surge events. | Use Scenario: Output stage of -48 V telecom rectifier feeding distributed base station equipment over 100 m copper pairs. IC Role / Device Role / Timing Role: Bidirectional clamping not applicable; 1.5KE200ARL used in unidirectional configuration on positive rail to suppress common-mode surges coupled onto DC feed lines. Use Value: 175 °C Tj rating allows placement near heatsinked rectifier diodes without thermal runaway risk. |
| Solar String Combiner Box | Railway Traction Converter |
Use Scenario: DC bus protection in outdoor PV combiner box subject to direct lightning coupling and rapid temperature cycling (−40 to +85 °C ambient). IC Role / Device Role / Timing Role: Standoff-rated TVS on string output (up to 1000 V OC) - selected for 200 V VRM to protect monitoring ICs and shunt regulators downstream of MPPT stage. Use Value: 30 kV ESD rating prevents field failures during maintenance handling in dry desert climates. | Use Scenario: DC link protection in 3-phase traction inverter where regenerative braking induces high dV/dt spikes on 750 V DC bus. IC Role / Device Role / Timing Role: Parallel-mounted TVS array (multiple 1.5KE200ARL) across DC link capacitor to absorb commutation energy and limit overvoltage during IGBT turn-off. Use Value: 1100 W power capability at 175 °C enables sustained clamping during repeated brake cycles without thermal saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ200A | Same DO-214AC package; 200 V VRM; 274 V VCL at 5.5 A; 400 W PPP rating (lower than 1500 W) | Designed for PCB space-constrained designs; lower surge capacity limits use to sub-1 kA applications | Select when board area is constrained and surge threat level is limited to IEC 61000-4-5 Level 2 |
| Vishay 1.5SMC200A | DO-214AB package; identical 200 V VRM and 274 V VCL; 1500 W rating; higher leakage (5 µA @ 171 V) | Surface-mount alternative requiring reflow-compatible layout; higher leakage may affect ultra-low-power monitoring circuits | Select for SMT production flow where through-hole assembly is unavailable |
Compared with SMAJ200A and 1.5SMC200A, 1.5KE200ARL offers superior thermal stability at 175 °C, lower leakage, and axial-leaded mechanical robustness - making it preferred for high-reliability through-hole deployments in harsh-environment power systems.
Availability
1.5KE200ARL is available at Aetrix Electronics and suitable for industrial SMPS input protection, telecom rectifier modules, solar string combiner boxes, and railway traction converters requiring stable component supply across extended temperature and surge stress conditions.
Supply support for 1.5KE200ARL 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for automotive, industrial, and consumer markets.
The 1.5KE series belongs to ST's high-power TVS portfolio, engineered specifically for robust overvoltage protection in high-energy DC systems - emphasizing thermal resilience, precise clamping, and international safety certification readiness.
FAQ
What is the maximum peak pulse current (IPP) for 1.5KE200ARL at 274 V clamping?
At a clamping voltage of 274 V under 10/1000 µs waveform, the peak pulse current is 5.5 A. This value is confirmed in Table 2 of DS0636 Rev 5 and reflects the device's rated surge-handling capability at 25 °C ambient. Derating applies above 25 °C per Figure 3, with 1100 W still available at Tj = 175 °C.
Is 1.5KE200ARL suitable for bidirectional signal line protection?
No - 1.5KE200ARL is unidirectional (denoted by "A" suffix) and conducts only in reverse avalanche. For bidirectional protection (e.g., RS-485, CAN bus), the "CA" variant (1.5KE200CA) must be used. Using 1.5KE200ARL on AC or differential lines risks forward conduction and failure during normal signal swing.
How does the dynamic resistance (RD = 5.5 Ω) impact system-level clamping performance?
The 5.5 Ω dynamic resistance defines the slope of the VCL vs. IPP curve: for every additional ampere beyond 5.5 A, VCL rises by ~5.5 V. This enables precise clamping margin calculation - e.g., at 7 A surge, VCL ≈ 274 + (7 − 5.5) × 5.5 = 282.25 V - ensuring protected ICs remain within absolute maximum ratings.
Does 1.5KE200ARL meet UL 497B for telecom surge protection?
Yes - UL 497B file number QVGQ2.E136224 explicitly covers the 1.5KE200ARL. This certification validates its suitability for primary circuit protection in telecommunications equipment, including compliance with impulse withstand, flammability (UL94 V0), and creepage/clearance requirements per ANSI/UL 497B Edition 5.
1.5KE200ARL 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 353V
- Current - Peak Pulse (10/1000µs):
- 28A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 675pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE200ARL FAQ
1.How can I place an order for 1.5KE200ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE200ARL 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 1.5KE200ARL reliable?
The price and inventory of 1.5KE200ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE200ARL is usually 5 days.
3.What payment methods are accepted for 1.5KE200ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE200ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE200ARL?
1.5KE200ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE200ARL 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 1.5KE200ARL?
For technical support, including 1.5KE200ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE200ARL requirements.
6.How does Aetrix verify that 1.5KE200ARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE200ARL 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 1.5KE200ARL meets industry standards.
7.What is the process for return or replacement of 1.5KE200ARL?
All 1.5KE200ARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE200ARL, 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 1.5KE200ARL part is unused and in its original packaging.
Return procedure for 1.5KE200ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE200ARL Tags
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