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STMicroelectronics P0111MN 5AA4
- Part No.:
- P0111MN 5AA4
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
P0111MN 5AA4.pdf
- Description:
- SCR 600V 800MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:7,924
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Product details
Overview
P0111MN 5AA4 from STMicroelectronics is a sensitive high-immunity silicon-controlled rectifier (SCR) in SOT-223 package, rated for 600 V repetitive peak off-state voltage (VRRM), 0.8 A RMS on-state current (IT(RMS)), and ultra-low gate trigger current (IGT) of 4–25 µA. It enables reliable thyristor switching in low-power, current-limited gate drive circuits such as smoke detector alarm triggers and solid-state relay pilot stages.
For engineers reviewing the P0111MN 5AA4 datasheet, P0111MN 5AA4 pinout, P0111MN 5AA4 application, or P0111MN 5AA4 equivalent, key selection criteria include its 600 V blocking capability, 0.8 A thermal rating at 70 °C ambient, 50 A/µs critical dI/dt, 80 V/µs dV/dt immunity at 125 °C, and SOT-223 thermal resistance of 30 °C/W (junction-to-tab).
Technical Context
This SCR operates as a latching unidirectional switch triggered by minimal gate current, with holding current (IH) ≤ 5 mA and latching current (IL) ≤ 6 mA-enabling robust turn-on even under weak gate drive. Its 600 V VRRM and 8 A non-repetitive surge rating (tp = 8.3 ms) support transient-tolerant operation in AC mains-connected safety circuits.
The device features low on-state voltage (VTM ≤ 1.95 V at 1.6 A) and dynamic resistance (Rd ≤ 600 mΩ), minimizing conduction loss in low-duty-cycle applications. Thermal performance is optimized via SOT-223's low Rth(j-t) = 30 °C/W, requiring only a 5 cm² copper area for full 0.8 A RMS derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM / VDRM | 600 V - supports direct connection to 230 VAC mains with margin for transients |
| IT(RMS) | 0.8 A at Tamb = 70 °C - defines maximum continuous AC load current with standard PCB layout |
| IGT | 4–25 µA - enables triggering from microcontroller GPIO or high-impedance sensor outputs |
| dV/dt | ≥ 80 V/µs at Tj = 125 °C - resists false triggering from EMI or fast line transients |
| Rth(j-t) | 30 °C/W - allows efficient heat transfer to PCB copper tab without external heatsink |
| VTM | ≤ 1.95 V at ITM = 1.6 A - limits conduction power loss to < 3.1 W during surge events |
| IH / IL | ≤ 5 mA / ≤ 6 mA - ensures stable latching after gate pulse removal in low-current loads |
Pinout & Package
SOT-223 package with exposed thermal tab (pin 4) for enhanced heat dissipation; standardized 3-pin configuration with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry terminal | Carries full load current; must be routed with adequate trace width and thermal relief |
| Cathode (K) | Main current exit terminal | Connected to system ground or return path; forms low-impedance loop with Anode |
| Gate (G) | Trigger control input | Accepts µA-level DC or pulse signal; requires < 1 kΩ series resistance to limit IGM |
| Tab (T) | Thermal and electrical connection to cathode | Internally tied to Cathode; must be soldered to ≥ 5 cm² copper pour for thermal compliance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-sensitive gate triggering | IGT as low as 4 µA enables direct MCU GPIO drive without buffer transistor |
| High dV/dt immunity | 80 V/µs at 125 °C prevents spurious turn-on in noisy industrial environments |
| Robust surge capability | 8 A non-repetitive surge (8.3 ms) supports inrush current handling in AC load switching |
| Low thermal resistance | Rth(j-t) = 30 °C/W allows full 0.8 A RMS rating with minimal PCB copper area |
| ECOPACK® compliant | Meets RoHS and halogen-free requirements for environmentally regulated end equipment |
Applications
| Smoke Detector Alarm Circuit | Standby Mode Power Supply |
|---|---|
Use Scenario: Detects ionization chamber current drop and triggers audible alarm via SCR latch. IC Role / Device Role / Timing Role: Latching switch that sustains alarm tone until manual reset, driven by µA-level comparator output. Use Value: 4 µA IGT ensures reliable activation from ultra-low-power analog front-end without additional gain stage. | Use Scenario: Enables zero-power standby by disconnecting auxiliary supply rails until wake-up event. IC Role / Device Role / Timing Role: High-voltage AC switch controlling primary-side bias winding enable path. Use Value: 600 V VRRM withstands 230 VAC peaks with safety margin; 50 A/µs dI/dt handles transformer inrush. |
| Ground Fault Circuit Interruptor (GFCI) | Solid-State Relay Pilot Stage |
Use Scenario: Trips main contactor when differential current exceeds 5 mA threshold. IC Role / Device Role / Timing Role: Fast-acting latch triggered by precision current-sense amplifier output. Use Value: ≤ 5 mA IH guarantees self-holding after tripping; 80 V/µs dV/dt rejects EMI from motor loads. | Use Scenario: Drives optocoupler LED or MOSFET gate in SSR control logic. IC Role / Device Role / Timing Role: Isolated gate driver interface between low-voltage controller and high-voltage output stage. Use Value: SOT-223 thermal performance supports continuous 0.8 A RMS in compact SSR housings without forced air. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS118-600 | Same 600 V VRRM, but IGT = 0.5–5 µA (more sensitive); TO-92 only | Limited to lower-power PCB layouts due to higher Rth(j-a) = 150 °C/W | Select when gate drive is < 1 µA and board space permits through-hole mounting |
| BT169G | 600 V VRRM, but IGT = 5–50 µA (less sensitive); TO-92, higher IH = 10 mA | Requires stronger gate drive; less suitable for microamp-triggered safety circuits | Choose for cost-sensitive non-safety applications where gate current > 10 µA is available |
Compared with TS118-600 and BT169G, P0111MN 5AA4 uniquely balances ultra-low IGT (4 µA), SOT-223 thermal efficiency (Rth(j-t) = 30 °C/W), and 600 V robustness-making it optimal for surface-mount safety-critical latching in space-constrained designs.
Availability
P0111MN 5AA4 is available at Aetrix Electronics and suitable for smoke detector alarm circuits, GFCI trip modules, standby power supply enable paths, and solid-state relay pilot stages requiring stable component supply across long-life industrial and consumer programs.
Supply support for P0111MN 5AA4 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 analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The P011xx series belongs to ST's high-immunity SCR product line, engineered specifically for safety-critical, low-gate-drive applications including fire/smoke detection, ground fault interruption, and energy-efficient standby switching.
FAQ
What is the maximum junction temperature for continuous operation?
The P0111MN 5AA4 has a maximum operating junction temperature (Tj) of +125 °C. Continuous operation at this temperature requires strict adherence to derating curves in Figure 3, limiting IT(AV) to approximately 0.4 A at 70 °C ambient when mounted on FR4 with recommended pad layout.
Can this SCR be triggered directly by a 3.3 V microcontroller GPIO?
Yes-its IGT range of 4–25 µA allows direct triggering from a 3.3 V GPIO with a 330 kΩ series resistor (delivering ~10 µA). However, a 1 kΩ resistor is recommended to limit peak IGM during transients and ensure gate protection per PG(AV) = 0.1 W rating.
Is the SOT-223 tab electrically isolated from the cathode?
No-the SOT-223 thermal tab is internally connected to the cathode (K) terminal. This requires routing the tab to the same net as the cathode on the PCB and avoiding isolation barriers beneath it to maintain electrical and thermal integrity.
How does dV/dt immunity change with gate-cathode resistance?
Per Figure 7, dV/dt immunity increases with higher RGK: at RGK = 10 kΩ, dV/dt reaches ~1.6× the value at RGK = 1 kΩ. However, excessive RGK (> 100 kΩ) risks insufficient gate current for reliable turn-on-designers should balance immunity and trigger margin using Figure 6 and Table 3 data.
P0111MN 5AA4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Off State:
- 600 V
- Voltage - Gate Trigger (Vgt) (Max):
- 800 mV
- Current - Gate Trigger (Igt) (Max):
- 25 µA
- Voltage - On State (Vtm) (Max):
- 1.95 V
- Current - On State (It (AV)) (Max):
- 500 mA
- Current - On State (It (RMS)) (Max):
- 800 mA
- Current - Hold (Ih) (Max):
- 5 mA
- Current - Off State (Max):
- 10 µA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 7A, 8A
- SCR Type:
- Sensitive Gate
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
P0111MN 5AA4 FAQ
1.How can I place an order for P0111MN 5AA4 through Aetrix?
Please submit a Request for Quotation (RFQ) for P0111MN 5AA4 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 P0111MN 5AA4 reliable?
The price and inventory of P0111MN 5AA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P0111MN 5AA4 is usually 5 days.
3.What payment methods are accepted for P0111MN 5AA4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P0111MN 5AA4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P0111MN 5AA4?
P0111MN 5AA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P0111MN 5AA4 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 P0111MN 5AA4?
For technical support, including P0111MN 5AA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P0111MN 5AA4 requirements.
6.How does Aetrix verify that P0111MN 5AA4 is sourced from the original manufacturer or authorized distributors?
All P0111MN 5AA4 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 P0111MN 5AA4 meets industry standards.
7.What is the process for return or replacement of P0111MN 5AA4?
All P0111MN 5AA4 units undergo pre-shipment inspection (PSI). If there is an issue with P0111MN 5AA4, 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 P0111MN 5AA4 part is unused and in its original packaging.
Return procedure for P0111MN 5AA4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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