MMBD4148/SE/CC/CA is a small signal diode produced by Fairchild Semiconductor Corporation
The MMBD4148 series are small‑signal diodes offered in SOT‑23 and DO‑35 packages. The handbook presents the absolute maximum ratings, thermal characteristics, and electrical parameters for the SE, CC, and CA variants.
Key specifications include a 100 V reverse voltage rating, 200 mA average forward current, and 350 mW power dissipation. Typical characteristic curves illustrate forward voltage versus current, reverse leakage, and power derating across temperature.
| Maximum Repetitive Reverse Voltage (V_RRM) | 100 V |
|---|---|
| Average Rectified Forward Current (I_F(AV)) | 200 mA |
| Non‑repetitive Peak Forward Surge Current (1 s) | 1.0 A |
| Non‑repetitive Peak Forward Surge Current (1 µs) | 2.0 A |
| Storage Temperature Range | -55 °C to +150 °C |
| Operating Junction Temperature (T_J) | 150 °C |
| Power Dissipation (P_D) | 350 mW |
| Thermal Resistance, Junction‑to‑Ambient (RθJA) | 357 °C/W |
| Forward Voltage at 10 mA (V_F) | 1.0 V |
| Reverse Leakage Current at 20 V (I_R) | 25 nA |
The diode can withstand up to 100 V reverse voltage.
The forward voltage is about 1.0 V at 10 mA.
The device is rated for a maximum power dissipation of 350 mW.
It can be stored from –55 °C up to +150 °C.