ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：JFET N-CH 30V TO92-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：30 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：50 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：4 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：14pF @ 20V
- Resistance - RDS(On)：30 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)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
Download product information
Overview
The onsemi PN4391 is an N-channel Junction Field-Effect Transistor (JFET) designed for small-signal applications. It operates in a depletion mode with a single internal element configuration. The device utilizes silicon technology and is housed in a TO-92-3 through-hole package. Key electrical characteristics include a gate-source breakdown voltage of 40 V, a gate-source cutoff voltage of 10 V, and a drain-source current of 150 mA at zero gate-source voltage. The component supports a power dissipation of 625 mW and functions within a temperature range from -65°C to +150°C.
Feature Summary
- N-channel junction field-effect transistor architecture
- Depletion mode operation capability
- Through-hole mounting compatibility
Applications
- Small-signal amplification circuits
- Low-noise analog signal processing
- High-impedance input stages
Procurement Notes
Verify the specific manufacturer designation, as Central Semiconductor also produces a PN4391 variant. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer. Ensure the ordering suffix matches the required packaging format, such as reel quantities, to align with assembly requirements.
Selection Notes
Select this component for designs requiring high input impedance and low noise performance in analog signal paths. The TO-92 package facilitates easy prototyping and through-hole assembly. Evaluate thermal management needs given the 625 mW power dissipation limit and ensure the operating environment stays within the specified temperature range.
Part Context
The PN4391 belongs to the family of small-signal JFETs used primarily in audio and RF front-end applications. Unlike MOSFETs, JFETs offer inherent short-circuit protection and linear characteristics. This specific part provides a balance of gain and bandwidth suitable for general-purpose analog switching and amplification tasks.
Replacement Considerations
Cross-reference with other N-channel JFETs in the TO-92 package, such as the 2N5457 or J112, ensuring pinout compatibility and matching electrical parameters like Vgs(off) and Idss.
