Overview
The MMBT3904SL is an NPN epitaxial silicon transistor produced by Fairchild Semiconductor, now part of ON Semiconductor. This transistor is designed for general-purpose amplifier and switching applications. It is known for its ultra-small surface mount package, specifically the SOT-923F package, which makes it well-suited for portable and space-constrained applications. The MMBT3904SL is also fully RoHS compliant and lead-free, aligning with modern environmental standards.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Base Voltage | VCBO | 60 | V |
| Collector-Emitter Voltage | VCEO | 40 | V |
| Emitter-Base Voltage | VEBO | 6 | V |
| Collector Current | IC | 200 | mA |
| Power Dissipation | PD | 310 | mW |
| Thermal Resistance, Junction to Ambient | RθJA | 403 | °C/W |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.2 - 0.3 | V |
| Base-Emitter Saturation Voltage | VBE(sat) | 0.65 - 0.95 | V |
| Current Gain Bandwidth Product | fT | 300 | MHz |
| Output Capacitance | Cob | 6 | pF |
| Input Capacitance | Cib | 15 | pF |
Key Features
- General purpose amplifier transistor suitable for medium power amplification and switching.
- Ultra-small surface mount package (SOT-923F) with a maximum height of 0.43mm, ideal for portable applications.
- Totally lead-free and fully RoHS compliant.
- Halogen and antimony free, classified as a “Green” device.
- Complementary PNP type available (MMBT3906SL).
- UL flammability classification rating of “V0” and moisture sensitivity level of MSL 1.
Applications
- General-purpose amplifier and switching circuits.
- Portable electronic devices due to its small package size.
- Automotive applications (with the MMBT3904Q variant).
- Medium power amplification in various electronic systems.
Q & A
- What is the maximum collector-emitter voltage of the MMBT3904SL?
The maximum collector-emitter voltage (VCEO) is 40V.
- What is the typical current gain bandwidth product of the MMBT3904SL?
The typical current gain bandwidth product (fT) is 300 MHz.
- Is the MMBT3904SL RoHS compliant?
- What is the package type of the MMBT3904SL?
The package type is SOT-923F.
- What is the maximum collector current of the MMBT3904SL?
The maximum collector current (IC) is 200 mA.
- What are the thermal resistance values for the MMBT3904SL?
The thermal resistance, junction to ambient (RθJA), is 403 °C/W, and the thermal resistance, junction to leads (RθJL), is 350 °C/W.
- What is the base-emitter saturation voltage range for the MMBT3904SL?
The base-emitter saturation voltage (VBE(sat)) range is 0.65 to 0.95 V.
- Is there a complementary PNP type available for the MMBT3904SL?
- What are the typical delay, rise, storage, and fall times for the MMBT3904SL?
The typical delay time (td) is 35 ns, the rise time (tr) is 35 ns, the storage time (ts) is 200 ns, and the fall time (tf) is 50 ns.
- What is the moisture sensitivity level of the MMBT3904SL?
The moisture sensitivity level is MSL 1.
