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Product Detailed Parameters
- Description：TRANS 2PNP 40V 200MA SOT-26
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Transistor Type：2 PNP (Dual) Matched Pair
- Current - Collector (Ic) (Max)：200mA
- Voltage - Collector Emitter Breakdown (Max)：40V
- Vce Saturation (Max) @ Ib, Ic：400mV @ 5mA, 50mA
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：100 @ 10mA, 1V
- Power - Max：225mW
- Frequency - Transition：250MHz
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-26
- Grade：-
- Qualification：-
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Overview
The DMMT3906-7-F is a matched PNP small signal surface mount transistor manufactured by Diodes Incorporated. It features an epitaxial planar die construction housed in a SOT-26 package. The device supports a collector-base voltage (VCBO) and collector-emitter voltage (VCEO) of -40 V, with a continuous collector current (IC) rating of -200 mA. Power dissipation reaches 225 mW at 25°C ambient temperature. The DC current gain (hFE) ranges from 60 to 300 depending on the collector current level. The transition frequency (fT) is specified at 250 MHz.
Feature Summary
- Intrinsically matched PNP pair built with adjacent dies from a single wafer for consistent performance
- 2% hFE matched tolerance typically achieved at IC = -10mA and VCE = -1.0V
- Small surface mount package designed for efficient PCB space utilization
Applications
- General purpose switching circuits requiring matched transistor pairs
- Analog signal processing applications utilizing low noise characteristics
- Amplifier stages where precise current gain matching is required
Procurement Notes
Verify the specific ordering suffix '-7-F' corresponds to the tape and reel packaging configuration containing 3000 units per reel. Confirm that the component meets RoHS compliance standards and utilizes lead-free matte tin plating on the copper leadframe. Ensure the manufacturing date code aligns with green molding compound requirements if halogen-free specifications are mandatory for the assembly process.
Selection Notes
Select this component when a dual PNP transistor configuration with tight gain matching is necessary within a compact footprint. The SOT-26 package accommodates two matched transistors, reducing board space compared to discrete components. Consider the thermal resistance of 556 °C/W and power dissipation limits when designing heat management strategies for high-density layouts.
Part Context
This part belongs to the DMMT3906 series of matched PNP transistors produced by Diodes Incorporated. It shares electrical characteristics with other devices in the family but differs in packaging and internal matching configurations. The series is designed for applications requiring paired transistors with predictable performance deviations.
Replacement Considerations
Direct substitutes include other matched PNP transistors in SOT-26 packages such as the MMBT3906 variants or equivalent parts from other manufacturers offering similar VCBO, VCEO, and IC ratings. Verify pinout compatibility and hFE matching tolerances before implementation.
FAQ
What is the typical hFE matched tolerance for the DMMT3906-7-F?
The device features a maximum hFE matched tolerance of 2%, typically measured at IC = -10mA and VCE = -1.0V.
How is the DMMT3906-7-F packaged?
It is supplied in a SOT-26 surface mount package, shipped in tape and reel quantities of 3000 units.
What is the maximum power dissipation rating?
The maximum power dissipation is 225 mW at an ambient temperature of 25°C when mounted on an FR4 PCB.
