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Product Detailed Parameters
- Description：JFET P-Channel 30V Low Noise
- Series：SMP5114
- Mfr：InterFET
- Package：Strip
- FET Type：P-Channel
- Voltage - Breakdown (V(BR)GSS)：-
- Drain to Source Voltage (Vdss)：30 V
- Current - Drain (Idss) @ Vds (Vgs=0)：45 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：6 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：12pF @ 10V
- Resistance - RDS(On)：65 Ohms
- Power - Max：350 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The InterFET SMP5114 is a P-Channel Junction Field-Effect Transistor (JFET) designed for analog switching and chopper applications. It utilizes the InterFET P0099F geometry to achieve low on-resistance, typically less than 100 Ohms at room temperature, with a maximum static RDS(ON) of 100 Ω at ID = -1mA. The device features a Gate-to-Source Breakdown Voltage (BVGSS) of 30 V and a Drain-to-Source Saturation Current (IDSS) range of -30 mA to -90 mA. It operates within a junction temperature range of -55°C to 125°C and offers a typical noise figure of 8 nV/√Hz.
Feature Summary
- Utilizes InterFET P0099F geometry for optimized performance in analog switch designs.
- Provides low drain-to-source on-resistance suitable for precision signal routing.
- Features hermetically sealed TO-18 package options alongside surface mount SOT23 variants.
Applications
- Analog Switches
- Choppers
Procurement Notes
Verify that the specific ordering suffix matches the required package type, as the SMP5114 designation corresponds specifically to the Surface Mount SOT23 configuration. Confirm whether bulk or tape-and-reel quantities are needed, noting that reel specifications vary by length. Ensure the design accounts for the absolute maximum ratings, particularly the continuous power dissipation limits and thermal derating factors specified for the operating environment.
Selection Notes
Select the SMP5114 when a surface-mount P-Channel JFET is required for low-noise analog applications. Compare the IDSS and VGS(off) parameters against circuit requirements, noting that this specific part number represents the standard binning for the SOT23 package. Consider alternative packages like TO-18 if hermetic sealing is mandatory for military or harsh environments, as the plastic SOT23 case may not meet those specific reliability standards.
Part Context
The SMP5114 belongs to the 2N5114 family of P-Channel JFETs manufactured by InterFET. This series includes through-hole variants such as the 2N5114 (TO-18) and PN5114 (TO-92), as well as bare die options. All members share the same core electrical characteristics and P0099F geometry but differ in physical packaging and mounting style to accommodate various PCB layout and environmental constraints.
Replacement Considerations
Direct replacements include other manufacturers' P-Channel JFETs with similar BVGSS and RDS(ON) specifications. Verify pinout compatibility between SOT23 packages from different suppliers, as lead configurations may vary. For hermetic requirements, consider the TO-18 packaged 2N5114 instead of the plastic SMP5114.
FAQ
What is the typical noise performance of the SMP5114?
The SMP5114 has a typical noise specification of 8 nV/√Hz.
Is the SMP5114 hermetically sealed?
No, the SMP5114 uses a molded plastic SOT23 case. Hermetically sealed versions are available in the TO-18 package (2N5114).
What is the maximum continuous power dissipation?
The maximum continuous device power dissipation is 500 mW at 25°C ambient temperature.
