MMBT3904-TP.pdf
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The MMBT3904-TP is widely adopted in general-purpose electronics due to its balanced switching, gain and cost efficiency.
As a standard NPN bipolar junction transistor, it operates in switching or linear amplification mode. By controlling the base current, it modulates a larger collector current to drive downstream circuitry efficiently.
The device supports collector currents up to 200–300 mA depending on configuration and provides stable hFE gain across operating conditions. Low Vce(sat) helps reduce conduction losses.
Designed for fast signal transitions, suitable for digital switching, small MOSFET driving, clock circuits and waveform shaping applications.
The SOT-23 package offers adequate thermal properties for low-power switching. MCC ensures reliable die construction and long-term stability across temperature ranges used in consumer devices.
Its SOT-23 footprint supports automated SMT production, compact PCB layouts and reduced parasitic effects essential for high-speed operation.
Suitable for amplification stages, level shifting, inductive load drivers, LED drivers, small relay pre-drive circuits and general digital switching.
| Type | NPN Small-Signal BJT |
|---|---|
| Package | SOT-23 (Surface Mount) |
| Collector Current (Ic) | Up to approx. 200–300 mA |
| Vceo Rating | 40 V typical for 3904 family |
| Gain (hFE) | Stable gain across low-to-medium currents |
| Saturation Voltage | Low Vce(sat) for efficient switching |
| Switching Characteristics | Fast response suited for logic and drivers |
| Manufacturer | Micro Commercial Co |
Standard SOT-23 pin configuration for MMBT3904 series:
1 – Base
2 – Emitter
3 – Collector
The SOT-23 package ensures low parasitics, compact PCB footprint and compatibility with high-volume SMT assembly. Designers should follow MCC's recommended land pattern for optimal solderability and thermal performance.
Audio stages, logic buffers, portable device switching.
MOSFET pre-drivers, LED drivers, transistor logic outputs.
Digital switching of small loads and inductive components.
Small-signal amplification and waveform shaping.
Equivalent general-purpose NPN devices include 2N3904, MMBT2222, and similar SOT-23 small-signal BJTs. Selection depends on required Ic, gain group and package preference.
Micro Commercial Co specializes in high-volume discrete semiconductors with robust manufacturing quality and consistent supply for OEM and aftermarket applications.
We currently provide peer-to-peer order processing. Submit an RFQ for MMBT3904-TP, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests MMBT3904-TP. Only qualified suppliers who pass our audit can list MMBT3904-TP on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for MMBT3904-TP fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
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We support DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is available. After dispatch, you will receive an email with tracking information. Note: Carriers may take up to 24 hours to show tracking events. Typical transit time: 3–5 days by express; 25–60 days by registered mail.
We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with MMBT3904-TP, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to Micro Commercial Co MMBT3904-TP, including pin diagrams and datasheets. Our team will respond promptly.
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