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2N4901 | 2N4902 | 2N4903

2N4901 | 2N4902 | 2N4903

2N4901 | 2N4902 | 2N4903

Product catalog summary
Overview: The document provides technical specifications for the 2N4901, 2N4902, and 2N4903 N-Channel JFETs, designed for low noise switching applications in mid to high frequency designs. These components are housed in a hermetically sealed TO-18 package, suitable for military applications.
Absolute Maximum Ratings:
  • Reverse Gate Source and Gate Drain Voltage: -40 V
  • Continuous Forward Gate Current: 50 mA
  • Continuous Device Power Dissipation: 1800 mW
  • Power Derating: 12 mW/°C
  • Operating Junction Temperature: -55 to 125 °C
  • Storage Temperature: -65 to 150 °C
Static Characteristics: Typical values at 25°C include:
  • Gate to Source Breakdown Voltage: -40 V
  • Gate to Source Reverse Current: -10 nA
  • Gate to Source Cutoff Voltage: Ranges from -5 to -1 V depending on the model
  • Drain to Source Saturation Current: 30 nA for 2N4091, 15 nA for 2N4092, 8 nA for 2N4093
Dynamic Characteristics: Typical values at 25°C include:
  • Drain to Source ON Resistance: 30 to 80 Ω
  • Input Capacitance: 16 pF
  • Reverse Transfer Capacitance: 5 pF
  • Turn-On Delay Time: 10 to 20 ns
  • Rise Time: 10 to 40 ns
  • Turn-Off Time: 40 to 80 ns
Features: The JFETs are characterized by low noise (1.2 NV/√HZ typical) and fast switching capabilities.
Ordering Information: The document lists the part numbers 2N4901, 2N4902, and 2N4903, all described as -40V N-Channel JFETs.
Additional Notes: The document includes detailed dimensional specifications and emphasizes that all specifications are subject to change without notice.
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Catalog excerpts

2N4901 | 2N4902 | 2N4903-1

FEATURES LOW NOISE: 1.2 NV/√HZ TYPICAL FAST SWITCHING The -40V 2N4091, 2N4092, and 2N4093 JFET’s are targeted for very low noise switching applications for mid to high frequency designs. Gate leakages are typically 50pA at room temperatures. The TO-18 package is hermetically sealed and suitable for military applications. ORDERING GUIDE TX, TXV, and S-Level Screening Available - Consult Factory. Part Number 2N4901, 2N4902, 2N4903 Description ABSOLUTE MAXIMUM RATINGS Reverse Gate Source and Gate Drain Voltage Continuous Forward Gate Current Continuous Device Power Dissipation Power Derating Operating Junction Temperature 0.030 (0.76) max Storage Temperature EMAIL: sales@solitronde

 Open the catalog to page 1
2N4901 | 2N4902 | 2N4903-2

STATIC CHARACTERISTICS Typical @ 25°C unless otherwise noted, highlighted values = A version. Symbol V(BR)GSS Gate to Source Breakdown Voltage Gate to Source Reverse Current Gate to Source Cutoff Voltage Drain to Source Saturation Current DYNAMIC CHARACTERISTICS Typical @ 25°C unless otherwise noted Drain to Source ON Resistance Input Capacitance Reverse Transfer Capacitance Turn-On Delay Time Rise Time Turn-Off Time © 2023 Solitron Devices, Inc. This document is believed to be correct at the time of publication and Solitron Devices accepts no responsibility for consequences from printing errors...

 Open the catalog to page 2

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