Part Details for STW3040 by STMicroelectronics
Results Overview of STW3040 by STMicroelectronics
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Applications
Automotive
STW3040 Information
STW3040 by STMicroelectronics is a Power Bipolar Transistor.
Power Bipolar Transistors are under the broader part category of Transistors.
A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.
Part Details for STW3040
STW3040 CAD Models
STW3040 Part Data Attributes
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STW3040
STMicroelectronics
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Datasheet
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STW3040
STMicroelectronics
30A, 400V, NPN, Si, POWER TRANSISTOR, TO-247AC, ROHS COMPLIANT, TO-247, 3 PIN
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | TO-247AC | |
| Package Description | ROHS COMPLIANT, TO-247, 3 PIN | |
| Pin Count | 3 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| Collector Current-Max (IC) | 30 A | |
| Collector-Emitter Voltage-Max | 400 V | |
| Configuration | SINGLE | |
| DC Current Gain-Min (hFE) | 10 | |
| JEDEC-95 Code | TO-247AC | |
| JESD-30 Code | R-PSFM-T3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | RECTANGULAR | |
| Package Style | FLANGE MOUNT | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Polarity/Channel Type | NPN | |
| Power Dissipation-Max (Abs) | 160 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Transistor Application | SWITCHING | |
| Transistor Element Material | SILICON |
STW3040 Frequently Asked Questions (FAQ)
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STMicroelectronics provides a recommended PCB layout in the application note AN5271, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
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The input capacitor selection depends on the input voltage, current, and frequency. A general guideline is to choose a capacitor with a voltage rating of at least 1.5 times the maximum input voltage, and a capacitance value between 1uF to 10uF. Additionally, consider the capacitor's ESR, ESL, and ripple current rating to ensure it can handle the input current and frequency.
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While the datasheet specifies an operating temperature range of -40°C to 150°C, the maximum ambient temperature for reliable operation depends on the specific application and cooling conditions. As a general guideline, it's recommended to keep the ambient temperature below 125°C to ensure reliable operation and minimize thermal stress.
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To ensure EMC, follow the guidelines in the application note AN5271, which includes recommendations for PCB layout, component selection, and shielding. Additionally, consider using EMI filters, ferrite beads, and shielding components to minimize electromagnetic radiation and susceptibility.
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The STW3040 has a high power density, so effective thermal management is crucial. Use a heat sink with a thermal resistance of less than 10°C/W, and ensure good thermal contact between the device and heat sink. Additionally, consider using thermal interface materials, such as thermal tape or thermal grease, to minimize thermal resistance.