## Summary of the S9018 NPN Transistor Datasheet

This document provides the datasheet for the S9018 NPN transistor. Here's a breakdown of the key information:

1. General Characteristics:

️· Type: NPN Transistor
️· Package: SOT-23 (Small Surface Mount Package)
️· Applications: AM/FM Amplifier, Local Oscillator (FM/VHF Tuner)

2. Absolute Maximum Ratings (important for preventing damage):

️· Collector-Base Voltage (VCBO): 30V
️· Collector-Emitter Voltage (VCEO): 15V
️· Emitter-Base Voltage (VEBO): 5V
️· Continuous Collector Current (IC): 50mA
️· Collector Power Dissipation (PC): 200mW
️· Junction & Storage Temperature: -55°C to +150°C

3. Electrical Characteristics (at TA = 25°C unless otherwise specified):

️· Breakdown Voltages:
- V(BR)CBO: 30V (IC = 100uA, IE = 0)
- V(BR)CEO: 15V (IC = 0.1mA, IB = 0)
- V(BR)EBO: 5V (IE = 100uA, IC = 0)
️· Leakage Currents:
- ICBO: ≤ 50nA (VCB = 12V, IE = 0)
- ICEO: ≤ 100nA (VCE = 12V, IB = 0)
- IEBO: ≤ 100nA (VEB = 3V, IC = 0)
️· Saturation Parameters (Typical):
- VCE(sat): ≤ 500mV (IC = 10mA, IB = 1mA)
- VBE(sat): 1.4V (IC = 10mA, IB = 1mA)
️· DC Current Gain (hFE): 70 to 190 (VCE = 5V, IC = 1mA)
️· Transition Frequency (fT): ≥ 600 MHz (VCE = 5V, IC = 10mA, f = 30MHz)
️· Collector Output Capacitance (COB): ≤ 2 pF (VCB = 10V, IE = 0, f = 1MHz)

4. hFE Classification:

️· Rank L: hFE = 70 - 105
️· Rank H: hFE = 105 - 190

5. Other important features

️· RoHS Compliant
️· Weight: 0.0074g

In essence, this datasheet details the performance specifications and limitations of the S9018 transistor, allowing engineers to determine if it is suitable for their particular application.