U440 The Vishay Dale U440 is a matched pair of N-channel JFETs in a TO-71 package. It offers a 25V breakdown voltage and 6mA drain current.
Mfr Part #:

U440

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale U440 is a matched pair of N-channel JFETs in a TO-71 package. It offers a 25V breakdown voltage and 6mA drain current.
✓ Total Stock: 4,500 pcs
$ Price Range: $0.99

U440 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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4,500 pcs
4500 pcs On Request 1 On Request On Request On Request On Request On Request

U440 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
FET Type
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power
SVHC Present
Voltage

U440 Description

Short technical summary and product information.

The Vishay Dale U440 is a matched pair of N-channel JFETs designed for high-frequency applications. Packaged in a hermetically-sealed TO-71 package, this two-chip design minimizes parasitics for superior performance.

 

Key electrical specifications include a gate-source cutoff voltage ranging from -1V to -6V, a gate-drain breakdown voltage of -25V minimum, and a forward transconductance of 4.5 mS minimum. The typical gate leakage current is a low 1 pA, and the gate-source voltage offset is a maximum of 10mV, ensuring tight matching.

 

With a maximum drain current of 6mA at 10V and a power dissipation of 500 mW, the U440 is suitable for demanding test and measurement applications. Its operating temperature range is -55°C to 150°C (TJ).

 

This device is ideal for use in wideband differential amplifiers, high-speed comparators, and impedance converters where precise matching and high-frequency performance are critical.

U440 Quick Information

Product Type: JFET
Canonical Name: U440 Matched N-Channel JFET Pair
Subcategory: N-Channel

U440 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

U440 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

U440 Features

  • Matched N-channel JFET pair.
  • Low gate leakage current.
  • High-frequency performance.
  • TO-71 hermetically-sealed package.
  • Wideband differential amplifier use.

U440 Applications

  • Wideband differential amplifiers.
  • High-speed comparators.
  • Impedance converters.
  • Test and measurement applications.

U440 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the gate-source cutoff voltage for the U440?

The gate-source cutoff voltage (VGS(off)) for the U440 ranges from -1V to -6V.

What is the minimum gate-drain breakdown voltage?

The minimum gate-drain breakdown voltage (V(BR)GSS) is -25V.

What is the typical gate leakage current?

The typical gate leakage current (IG) is 1 pA.

What is the package type for the U440?

The U440 is supplied in a TO-71-6 package.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C (TJ).

What is the maximum power dissipation?

The maximum power dissipation (Pd) is 500 mW.

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