MMBT3906LT1

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MMBT3906LT1

TRANS PNP 40V 200MA SOT23

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Especificaciones

Supplier Rochester Electronics, LLC
Package Bulk
ProductStatus Obsolete
TransistorType PNP
Current-Collector(Ic)(Max) 200 mA
Voltage-CollectorEmitterBreakdown(Max) 40 V
VceSaturation(Max)@IbIc 400mV @ 5mA, 50mA
DCCurrentGain(hFE)(Min)@IcVce 100 @ 10mA, 1V
Power-Max 225 mW
Frequency-Transition 250MHz
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

Descripción general

Description

MMBT3906LT1 is a general‑purpose PNP bipolar transistor in the SOT‑23 (MMBT) package. It’s the SMD counterpart of the 2N3906 and is used for low‑power switching and small‑signal amplification.
Key points
- Type: PNP transistor; emitter must be more positive than the base.
- Package: SOT‑23; pinout (flat face toward you) typically Pin1 = Emitter, Pin2 = Base, Pin3 = Collector.
- Ratings (typical): Vceo ≈ 40 V; Ic up to ~200 mA; gain (hFE) ~100–300.
- Complement: MMBT3904 (NPN).
- Applications: high‑side switching, level shifting, small‑signal amplification, sensor interfaces.
- Use note: drive the base through a resistor; the device fills a few hundred milliwatts of dissipation and should be selected with the exact datasheet for precise ratings.
If you need exact electrical specs for your trace, check the specific datasheet variant, as there are several manufacturers with similar part numbers.

Features

MMBT3906LT1 is a PNP, general‑purpose transistor in a SOT‑23 package. Key features:
- PNP small-signal transistor, complementary to MMBT3904
- VCEO = -40 V; IC = -200 mA (continuous)
- High DC gain: hFE typically 100–300
- Suitable for switching and amplification of small signals
- Pb‑free, RoHS compliant; available in tape‑and‑reel
- Temperature range: -55°C to +150°C
- Low noise and low saturation voltage in switching applications
用途 تشمل general-purpose switching/amplification in compact, surface-mount designs.

Package

The MMBT3906LT1 is supplied in a 3-pin SOT-23 surface-mount package (TO-236AB).

Pinout

- Pin count: 3 (SOT-23 package).
- Function: PNP small‑signal bipolar junction transistor used for general‑purpose switching and amplification.
- Pinout (SOT‑23, looking at flat face with leads down): Pin 1 = Emitter, Pin 2 = Base, Pin 3 = Collector.

Manufacturer

- Manufacturer: ON Semiconductor (ON Semiconductor, Inc.).
- What kind of company: An American multinational semiconductor company that designs and manufactures silicon-based devices, including discrete transistors, diodes, ICs, and power management solutions.

Application

MMBT3906LT1 is a general-purpose PNP transistor (SOT-23) used for small-signal amplification and switching. Typical applications:
- High-side switching and level shifting
- Signal amplification in audio, driver, and RF front-ends
- Complement to NPN MMBT3904 in push-pull or biased stages
- Biasing networks, regulators, and constant-current sources
- Switching and pulse circuits (fast turn-on/off in low-power applications)

Equivalent

Direct equivalents (PNP small-signal transistor) include:
- 2N3906 (TO-92)
- MMBT3906 (SOT-23)
- PMBT3906 / PMBT3906LT1 (SOT-23)
- FMMT3906 (SOT-23)
- BC856 / BC856A (SMD PNP general-purpose)
Note: check pinout and ratings per manufacturer, as package and gains can vary.

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