SMP1321-001
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When You'll Get It:Aug 25 - Aug 29
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Shipping & Support: In-stock items ship in 24 hours; custom orders ship per contract. Free shipping on orders over $10,000. For bulk buys, get a personal support rep and quick reimbursement if anything's defective.
**Description**
- Low capacitance, plastic packaged PIN diode
- Surface mountable PIN diode designed for high-volume switch applications from 10 MHz to more than 10 GHz
- Single diode configuration (single anode)
- Housed in a 3‑pin SOT‑23 surface mount package
- Lead (Pb)-free version available: SMP1321‑001LF
- Marking code: PM1
**Features**
- Low capacitance: 0.25 pF (max @ 30 V)
- Low series resistance: 2.0 Ω (max @ 10 mA)
- Designed for high-performance wireless switch applications
- High isolation for series-connected PIN diode switches
- Suitable for battery operated circuits
- Multiple package configurations available
- Available in tape and reel packaging
- Packages rated MSL1, 260 °C per JEDEC J-STD-020
**Key Specifications** (Typical @ 25°C)
- Configuration: Single
- Reverse Voltage (VR): 100 V (min)
- Capacitance (CT @ 1 MHz, VR = 30 V): 0.25 pF (max)
- Series Resistance (RS @ 100 MHz, IF = 1 mA): 3.0 Ω (typ)
- Series Resistance (RS @ 100 MHz, IF = 10 mA): 2.0 Ω (max)
- Forward Voltage (VF @ IF = 10 mA): 0.85 V (typ)
- Carrier Lifetime (τl @ IF = 10 mA): 0.40 µs
- I Region Width: 15 µm
- Package Inductance (LS): 1.5 nH
- Operating Temperature: –65°C to +150°C
- Storage Temperature: –65°C to +150°C
- Package / Case: SOT‑23 (3‑pin)
- Package Marking: PM1
**Applications**
- High-performance wireless switch applications
- High isolation series-connected PIN diode switches
- Battery operated circuits
- RF switching from 10 MHz to more than 10 GHz
- High volume commercial switch applications
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> **Note:** All parameters are subject to the official Skyworks SMP1321 series datasheet. Specifications are typical values and may vary with operating conditions. For lead‑free version, refer to **SMP1321‑001LF**.
