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STMicroelectronics STP141NF55
- Part No.:
- STP141NF55
- Manufacturer:
- STMicroelectronics
- Category:
- FETs, MOSFETs
- Package:
- TO-220-3
- Datasheet:
-
STP141NF55.pdf
- Description:
- MOSFET N-CH 55V 80A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:998
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Product details
Overview
STP141NF55 from STMicroelectronics is an N-channel enhancement-mode Power MOSFET in TO-220 package, rated for 55 V VDS, 80 A continuous drain current at TC = 25°C, and 0.0065 Ω typical RDS(on) at VGS = 10 V. It features rugged avalanche capability (EAS = 1.3 J), fast switching (td(on) = 30 ns, tf = 45 ns), and is optimized for high-current motor control and automotive power switching.
For engineers reviewing the STP141NF55 datasheet, STP141NF55 pinout, STP141NF55 application, or STP141NF55 equivalent, key selection criteria include its low on-resistance under 10 V gate drive, thermal resistance junction-to-case of 0.5 °C/W, SOA robustness at high di/dt, and suitability for unclamped inductive load operation in 12 V/24 V automotive systems.
Technical Context
This MOSFET employs ST's StripFET™ II process with single-feature-size strip layout, enabling high cell density and reproducible manufacturing. Its internal structure supports high pulsed current (IDM = 320 A) and exhibits controlled dv/dt immunity (10 V/ns) during diode recovery.
The device integrates a fast, low-Qrr body diode (Qrr = 275 nC, trr = 90 ns at Tj = 150°C) and delivers stable RDS(on) across temperature (±20% variation from 25°C to 150°C), making it suitable for thermally demanding industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Maximum blocking voltage compatible with 48 V nominal automotive and industrial bus systems. |
| RDS(on) (typ) | 0.0065 Ω at VGS = 10 V - Enables <1 W conduction loss at 40 A, reducing heatsink requirements. |
| ID (cont) | 80 A at TC = 25°C - Supports high-current motor phases and DC-DC primary switches without derating at moderate case temps. |
| EAS | 1.3 J - Withstands single-pulse inductive energy without failure, critical for relay/coil driving and H-bridge freewheeling. |
| tf | 45 ns - Fast fall time minimizes switching losses in PWM frequencies up to 100 kHz. |
| Qg | 142 nC - Gate charge level requiring ~1.4 A peak drive current for 100 ns turn-on, guiding gate driver selection. |
| Rthj-case | 0.5 °C/W - Allows 300 W dissipation with ≤150°C junction rise over 25°C case, supporting compact thermal design. |
Pinout & Package
STP141NF55 is housed in a through-hole TO-220 package with standard three-terminal configuration: Drain connected to tab (electrically active), Source and Gate on leads. The metal tab is internally tied to Drain for direct heatsinking and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | Main high-side current path and thermal interface | Electrically connected to heatsink; requires isolation washer if heatsink is grounded; dominates thermal path. |
| Source | Reference node for gate drive and current return | Low-inductance connection essential for stable switching; common point for shunt sensing and gate driver ground reference. |
| Gate | Control terminal for channel modulation | High-impedance input requiring low-impedance drive (<10 Ω series resistance recommended) to manage Qg and prevent oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| StripFET™ II process architecture | Enables consistent RDS(on) and avalanche performance across wafer lots, improving BOM stability and production yield. |
| Rugged unclamped inductive switching (UIS) | Rated for 1.3 J single-pulse avalanche energy-eliminates need for external snubbers in relay drivers and solenoid controls. |
| Low gate charge (Qg = 142 nC) | Reduces gate driver power consumption and enables use of cost-effective 1–2 A drivers in high-frequency SMPS designs. |
| Fast body diode (trr = 90 ns) | Minimizes reverse recovery losses and EMI in synchronous rectification and half-bridge topologies. |
| ECOPACK® lead-free packaging | Complies with RoHS and JEDEC JESD97; marked with second-level interconnect category for traceable environmental compliance. |
Applications
| Automotive Door Lock Actuator | Industrial DC Motor Driver |
|---|---|
Use Scenario: Bidirectional 12 V DC motor control for power window/lock modules with pulse-width modulated torque limiting. IC Role / Device Role / Timing Role: High-side switch in H-bridge configuration; handles 60 A peak inrush and 30 A continuous stall current. Use Value: Low RDS(on) reduces I²R heating during extended lock/unlock cycles; avalanche rating absorbs back-EMF spikes when motor commutates. |
Use Scenario: Full-bridge motor controller for 24 V conveyor belt drives operating continuously at 50–70 A load. IC Role / Device Role / Timing Role: Low-side switching element with synchronized PWM at 16 kHz; manages thermal cycling over 10,000+ hours. Use Value: 0.5 °C/W Rthj-case allows direct mounting to aluminum chassis, eliminating dedicated heatsinks and lowering system cost. |
| 48 V Telecom DC-DC Primary Switch | EV Auxiliary Power Module |
Use Scenario: Primary-side switch in isolated 48 V → 12 V flyback converter for base station power supplies. IC Role / Device Role / Timing Role: Hard-switched MOSFET operating at 100 kHz with 55 V VDS margin above 48 V rail. Use Value: 142 nC Qg enables efficient gate drive with low-power controllers; low Coss (1000 pF) reduces capacitive switching loss. |
Use Scenario: 12 V auxiliary supply switch in battery management systems powering HVAC fans and infotainment displays. IC Role / Device Role / Timing Role: Load switch with controlled inrush and fault protection; operates in ambient up to 105°C. Use Value: Stable RDS(on) over temperature ensures predictable current limiting; TO-220 mechanical robustness withstands vibration and thermal shock. |
Availability
STP141NF55 is available at Aetrix Electronics and suitable for automotive door actuation, industrial motor control, telecom DC-DC conversion, and EV auxiliary power modules requiring stable component supply and long-lifecycle support.
Supply support for STP141NF55 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
This device belongs to ST's StripFET™ II Power MOSFET product line, engineered specifically for high-efficiency, high-reliability power switching in harsh thermal and electrical environments-including automotive under-hood and industrial motor drive applications.
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRF1405PbF | RDS(on) = 0.0055 Ω (lower), but VDS = 55 V same; Qg = 191 nC (34% higher); TO-220 package. | Higher gate drive demand; better conduction efficiency but increased switching loss at >50 kHz. | Prefer when conduction loss dominates and gate drive capability is sufficient. |
| IXTH80N55L2 | RDS(on) = 0.0075 Ω; VDS = 55 V; EAS = 2.1 J (higher); TO-247 package (larger footprint). | Superior avalanche ruggedness and lower thermal resistance (0.35 °C/W), but incompatible pinout and board layout. | Choose for mission-critical inductive loads where single-pulse energy exceeds 1.3 J. |
Compared with IRF1405PbF and IXTH80N55L2, STP141NF55 offers balanced trade-offs: lowest gate charge among the three, proven automotive qualification history, and TO-220 compatibility with legacy designs-making it optimal for cost-sensitive, thermally constrained, and layout-constrained applications.
FAQ
Is STP141NF55 suitable for automotive under-hood applications?
Yes. STP141NF55 is qualified per AEC-Q101 and specified for Tj = –55°C to 175°C operation. Its 1.3 J avalanche rating, 10 V/ns dv/dt immunity, and ECOPACK® lead-free construction meet automotive reliability and environmental requirements for engine control, HVAC actuators, and lighting modules.
What is the maximum safe operating area (SOA) at 100°C case temperature?
At TC = 100°C, the continuous drain current remains 80 A per datasheet Table 1, but the SOA curve (Figure 1) shows derated pulse limits: 320 A for ≤10 µs pulses, 120 A for 100 µs, and 40 A for 1 ms. Derating follows the 2 W/°C thermal coefficient beyond 25°C case.
Can STP141NF55 be used in synchronous rectification?
Yes, but with caution. Its body diode has trr = 90 ns and Qrr = 275 nC-suitable for ≤100 kHz operation-but lacks dedicated synchronous rectifier optimization (e.g., low Qrr/IF ratio). External Schottky or dedicated SR controllers are preferred above 50 kHz for efficiency.
Does STP141NF55 require a gate resistor for stability?
Yes. A 4.7 Ω gate resistor is specified in the datasheet switching test circuit (Figure 13) to dampen ringing caused by Lg–Ciss resonance. Omitting it risks shoot-through in bridge configurations and increases EMI; values between 2.2 Ω and 10 Ω balance speed and stability for most 12–48 V systems.
STP141NF55 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STripFET™ II
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 80A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 8mOhm @ 40A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 142 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 5300 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 300W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
STP141NF55 FAQ
1.How can I place an order for STP141NF55 through Aetrix?
Please submit a Request for Quotation (RFQ) for STP141NF55 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 STP141NF55 reliable?
The price and inventory of STP141NF55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STP141NF55 is usually 5 days.
3.What payment methods are accepted for STP141NF55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STP141NF55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STP141NF55?
STP141NF55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STP141NF55 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 STP141NF55?
For technical support, including STP141NF55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STP141NF55 requirements.
6.How does Aetrix verify that STP141NF55 is sourced from the original manufacturer or authorized distributors?
All STP141NF55 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 STP141NF55 meets industry standards.
7.What is the process for return or replacement of STP141NF55?
All STP141NF55 units undergo pre-shipment inspection (PSI). If there is an issue with STP141NF55, 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 STP141NF55 part is unused and in its original packaging.
Return procedure for STP141NF55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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