
Philips Electronics
Matched pair transistors
Matched pair transistors are double transistors with matched current gain h FE1/hFE2 and matched base-emitter voltage VBE1 - VBE2. The optimal product for the most common applications is offered by means of several matching-categories and different pinning options. Internally the transistors are fully isolated.
KEY FEATUREs
- Current gain matching:
hFE1/hFE2 = 0.7, 0.9, 0.95, 0.98
- Base-emitter voltage matching:
VBE1 - VBE2 = 2 mV
- Standard double transistor pin-out for
BCM-types
- Application optimized pin-out for all
PMP-types
- Common emitter configuration for
5pin PMP-types
Key benefits
- Improved performance of current mirror
and differential amplifier circuits
- Drop-in replacement for standard double
transistors (BCM-series)
- Simplified board layout (PMP-series)
- Eliminates need for costly
additional trimming
Key applications
- Current mirror e.g. for current
measurement or to drive LED’s with a
constant current
- Differential amplifier e.g. sensor
signal amplification
- Comparator e.g. for DC/DC converters