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Product Detailed Parameters
- Description：JFET P-Channel 30V Low Noise
- Series：SMP5115
- 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)：25 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：3.5 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：12pF @ 10V
- Resistance - RDS(On)：80 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 SMP5115 is a P-channel JFET utilizing the proprietary P0099F geometry, designed for analog switching and chopper applications. It features a typical noise of 8 nV/√Hz and low on-resistance. Key electrical parameters include a gate-to-source breakdown voltage of 30 V, a drain-to-source saturation current (IDSS) ranging from -15 mA to -60 mA, and a gate-to-source cutoff voltage between 3 V and 6 V. The device operates within a junction temperature range of -55°C to 125°C and offers SOT23 surface mount packaging options.
Feature Summary
- Utilizes InterFET P0099F geometry for optimized performance
- Provides low on-resistance suitable for precision analog circuits
- Features low noise characteristics with a typical value of 8 nV/√Hz
Applications
- Analog switches
- Choppers
Procurement Notes
Verify the specific package variant required, as the SMP5115 designation corresponds to the SOT23 surface mount case. Confirm whether bulk or tape and reel quantities are needed, noting that tape and reel options have minimum order requirements. Ensure the design accounts for the hermetic sealing availability in other packages if environmental protection is critical for the target application.
Selection Notes
Select the SMP5115 when a P-channel JFET with low noise and moderate saturation current is required. Compare IDSS ranges against circuit biasing needs, as this model specifies a minimum of -15 mA. Consider the SOT23 package for space-constrained designs, while evaluating TO-18 or TO-92 variants if through-hole mounting or military-grade hermetic sealing is necessary for the system.
Part Context
The SMP5115 belongs to the 2N5114-5-6 family of P-channel JFETs manufactured by InterFET. This series is engineered for high-performance analog applications requiring low distortion and stable switching characteristics. The family shares common electrical limits but varies in IDSS and VGS(off) specifications to accommodate different circuit gain and biasing requirements across various package types.
Replacement Considerations
Direct replacements include the 2N5115 and PN5115, which share identical electrical characteristics. The 2N5114 and 2N5116 are functionally similar but differ in saturation current and cutoff voltage ranges. Verify pinout compatibility and package dimensions when substituting with these related models.
