Description

The SMP1321 series is a plastic packaged, surface-mountable PIN diode designed for high volume switch applications from 10 MHz to beyond 2 GHz. It has a low capacitance of 0.25 pF and a low resistance of 2.0 Ω maximum at 10 mA. These features make the SMP1321 series well-suited for high isolation series connected PIN diode switches in battery-operated circuits. It is available in various plastic packages and configurations, including a low inductance SOT-23 (SMP1321-007), SC-79, and SC-70. The SMP1321-508 model is specifically designed for WLAN 802.11 a, b, and g applications.

Specifications and Features

- Designed for high performance wireless switch applications
- 0.25 pF capacitance specified
- Available lead (Pb)-free MSL-1 @ 250 °C per JEDEC J-STD-020
- Available in tape and reel packaging

Application Scenarios

The SMP1321 series is commonly used in high volume switch applications where a low capacitance and low resistance diode is required. It is particularly suitable for battery-operated circuits that require high isolation series connected PIN diode switches. The SMP1321-508 model is specifically designed for WLAN 802.11 a, b, and g applications.

Comparison

- Low capacitance of 0.25 pF
- Low resistance of 2.0 Ω at 10 mA
- Availability in various plastic packages and configurations

- Not suitable for applications outside the frequency range of 10 MHz to 2 GHz
- Limited to high isolation series connected PIN diode switches in battery-operated circuits