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Extech Instruments Substitution Box

Extech Instruments Resistance Substitution Box, 380400
Extech Instruments Capacitance Substitution Box, 380405
Extech Instruments Resistance Substitution Box, 380400
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Extech Instruments Resistance Substitution Box, 380400
Extech Instruments Capacitance Substitution Box, 380405
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Extech Instruments Capacitance Substitution Box, 380405

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Questions & Answers

Product Discontinued by Manufacturer

Extech Instruments Substitution Box has been discontinued by Extech Instruments and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Tools yourself to try and find the perfect replacement for you!

Product Info for Extech Instruments Substitution Box

The Extech 380400 Resistance Decade Box is very popular for product design testing and calibration because it can be substituted into a circuit and function in the place of any component with a standard value easily. Alternatively, it can be used to identify the best value for circuit operation then read that value from the switches. Then, a resistor of the size indicated by the decade box switches can be put into the circuit.image

Features of Extech Instruments Substitution Box:

  • Range 1 ohm to 11Mohms Values can be set in 1 ohm increments Durable plastic housing Accuracy 1% Case may be grounded separately
  • Included Accessories:
  • Resistance Decade Box

Package Contents:

  • Extech Instruments Substitution Box
  • Capacitance Decade Box

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Extech Instruments Substitution Box Unavailable & Discontinued Models

List of Unorderable Models

  • Extech Instruments Resistance Substitution Box, 380400 , MPN: 380400 , UPC: 793950384008 , Code: EXT-TL-RSTSTBX-380400
  • Extech Instruments Capacitance Substitution Box, 380405 , MPN: 380405 , UPC: 793950384053 , Code: EXT-TL-RSTSTBX-380405
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Last updated 2026-11-02 UTC.