Matched NPN pair in 8-SOIC — the audio and instrumentation front-end staple
The SSM2212RZ is a dual NPN matched pair transistor from Analog Devices, housed in an 8-SOIC (0.154", 3.90mm width) surface-mount package. It is specified for a collector-emitter breakdown voltage of 40 V and a maximum collector current of 20 mA. With a transition frequency of 200 MHz and a typical Vce saturation of 200 mV at 100 µA base current and 1 mA collector current, this part is designed for low-level signal amplification where matching between the two die matters more than raw power handling.
40 V breakdown, 500 pA leakage — the parametric envelope for precision analog
The 40 V collector-emitter breakdown voltage gives headroom for ±15 V supply rails common in audio and instrumentation circuits. Maximum collector current of 20 mA keeps the part in the small-signal domain — it is not a driver transistor. Collector cutoff leakage is specified at 500 pA maximum, which is low enough for high-impedance input stages in photodiode amplifiers or electret microphone preamps. The operating temperature range spans -65°C to 150°C junction, covering military and industrial thermal profiles.
Active lifecycle, ROHS3, Tube delivery — sourcing posture
The SSM2212RZ carries an Active product status from Analog Devices and is ROHS3 compliant. It ships in a Tube — the standard bulk format for 8-SOIC parts — not tape and reel. For volume or reel requirements, the sibling order code SSM2212RZ-R7 provides the same die in Tape & Reel packaging.