Micro Commercial Co MMBT3904-TP
- Part No.:
- MMBT3904-TP
- Manufacturer:
- Micro Commercial Co
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBT3904-TP.pdf
- Description:
- TRANS NPN 40V 0.2A SOT-23
- Quantity:
- Payment:
- Shipping:
Inventory:1,759,142
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Key Analysis of the MMBT3904-TP
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.
Technical Characteristics
| 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 |
Pinout
Standard SOT-23 pin configuration for MMBT3904 series:
1 – Base
2 – Emitter
3 – Collector
Package & Mechanical Dimensions
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.
Application Fields
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 Devices & Manufacturer
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.
Disclaimer
- Specifications
- FAQ
- Product Comparison
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Micro Commercial Co
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 200 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 1V
- Power - Max:
- 350 mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23
1. How to order MMBT3904-TP on DeepFinds Electronics?
Currently, DeepFinds Electronics only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does DeepFinds Electronics guarantee that MMBT3904-TP is from the original manufacturer or authorized agents?
We have a professional and experienced quality control team to strictly verify and test the MMBT3904-TP. All suppliers must pass our qualification reviews before they can publish their products including MMBT3904-TP on DeepFinds Electronics; we pay more attention to the channels and quality of MMBT3904-TP products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the MMBT3904-TP price and inventory displayed accurate?
The price and inventory of MMBT3904-TP fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?
Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.
Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?
Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.
Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.
Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of MMBT3904-TP?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MMBT3904-TP we delivered, we will accept the replacement or return of the MMBT3904-TP only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of MMBT3904-TP.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as MMBT3904-TP pin diagram, MMBT3904-TP datasheet?
If you need any after-sales service, please do not hesitate to contact us.
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| Part Number | MMBT3904-TP | MMBT3904HE3-TP | MMBT3904T-TP | MMBT3904-13P | MMBT3904L3-TP |
| Manufacturer | Micro Commercial Co | Micro Commercial Co | Micro Commercial Co | Micro Commercial Co | Micro Commercial Co |
| Series | - | - | - | - | - |
| Package/Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | SOT-523 | TO-236-3, SC-59, SOT-23-3 | SC-101, SOT-883 |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Active | Active | Active | Active |
| Transistor Type | NPN | - | NPN | NPN | NPN |
| Current - Collector (Ic) (Max) | 200 mA | 200 mA | 200 mA | 200 mA | 200 mA |
| Voltage - Collector Emitter Breakdown (Max) | 40 V | 40 V | 40 V | 40 V | 40 V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 5mA, 50mA | 300mV @ 5mA, 50mA | 300mV @ 5mA, 50mA | 300mV @ 5mA, 50mA | - |
| Current - Collector Cutoff (Max) | 50nA (ICBO) | 50nA | 50nA (ICBO) | 50nA | - |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 10mA, 1V | 100 @ 10mA, 1V | 100 @ 10mA, 1V | 100 @ 10mA, 1V | - |
| Power - Max | 350 mW | 350 mW | 150 mW | 350 mW | 150 mW |
| Frequency - Transition | 300MHz | 300MHz | 300MHz | 300MHz | - |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | - |
| Grade | - | Automotive | - | - | - |
| Qualification | - | AEC-Q101 | - | - | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Supplier Device Package | SOT-23 | SOT-23 | SOT-523 | SOT-23 | DFN1006-3 |
