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Product Detailed Parameters
- Description：JFET N-CH 40V TO92-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：15 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：2 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：16pF @ 20V
- Resistance - RDS(On)：50 Ohms
- Power - Max：625 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The U1898_D27Z is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It features a maximum drain-source breakdown voltage of 40 V and a power dissipation rating of 625 mW. The device utilizes a TO-92-3 through-hole package with kinked leads. Key electrical characteristics include a drain current of 15 mA at 20 V and an input capacitance of 16 pF at 20 V. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- N-channel JFET configuration for signal processing applications
- Through-hole TO-92-3 packaging for standard board mounting
- High junction temperature capability up to 150°C
Applications
- Low-noise amplifier circuits
- Constant current source implementations
- Analog switching applications
Procurement Notes
Verify the specific suffix D27Z against official datasheets to confirm lead form and binning, as suffixes may indicate mechanical variations without changing electrical function. Confirm availability status as the part is listed as obsolete in distributor records. Source documentation directly from onsemi or authorized distributors to ensure authenticity and traceability.
Selection Notes
Select this component when an N-channel JFET with a 40V breakdown voltage and TO-92-3 package is required. Ensure the design accommodates the 625 mW power dissipation limit and the specified input capacitance. Verify that the through-hole mounting style aligns with the PCB layout requirements.
Part Context
The U1898 belongs to the U189x series of small-signal JFETs produced by onsemi. This series includes variants such as U1897 and U1899, which share similar structural characteristics but may differ in specific gain or current parameters. The U1898 is specifically characterized for its 40V rating and 15mA drain current profile.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided data. Cross-reference with U1897 or U1899 only if their specific electrical parameters match the design requirements, noting potential differences in gain or current specifications.
