SSM2212 Dual-Matched NPN Transistor

Analog Devices SSM2212 Dual-Matched NPN Transistors are dual, NPN-matched transistor pairs specifically designed to meet the requirements of ultra-low noise audio systems. With its extremely low input base spreading resistance (rbb' is typically 28Ω) and high current gain (hFE typically exceeds 600 at IC = 1mA), the SSM2212 can achieve outstanding signal-to-noise ratios. The high current gain results in superior performance compared to systems incorporating commercially available monolithic amplifiers.