Non-Inductive Resistor

WARD LEONARD -RWF175W2500 NI - Ceramic Resistor with Ayrton-Perry Winding.

A non-inductively wound resistor uses Ayrton-Perry Winding technique which has one winding in one direction and one in the other. Since there are the same number of turns of wire in each direction, the magnetic fields of the two wires cancel each other to nullify inductance. One disadvantage of this technique is that it requires twice the length of coil to make given resistance as compared to standard winding. Ayrton-Perry windings are used in resistor to eliminate parasitic inductance at high frequencies.

Resistance: 2.5K Ohm.

Power: 175 watt.

Cartridge Clip-In, Metal ferrule. 

Non-Inductive.

Dimensions: 1.227" D x 9-5/8" long.

Note: Marked: DR2500WL.

WARD LEONARD - RWP50W6700 Resistor, Ceramic.

Resistance: 6.7K Ohm.

Power: 50 watt.

Non-inductive.

Flat sandstone. 2 Hole horizontal mount with 4-1/3" centers.

Dimensions: 4-3/4" long x 0.467" wide x 1.285" high.

Radial lug.

Note: Plaqohm.

Enclosure Type: Encapsulated

Mount: Chassis

Termination: Solder Lug

Flat sandstone.

Applications: Used in compact, high frequency electronic equipment.

Vishay HEI - FST10/10K NI Resistor, Tubular Ceramic. 10K Ohm.

Marked NI: Non-inductive style (special “NI”) with Ayrton-Perry winding. Ayrton–Perry windings of resistance wire are used to make wirewound RF resistors that are used at high frequencies, where inductance and capacitance are unwanted.The winding is made of two separate wires wound in opposing directions along an insulating form and connected in parallel at the ends. Since there are the same number of turns of wire in either direction, the magnetic fields of the two wires cancel each other out, so the coil has little inductance; and since adjacent turns of the two wires are at approximately the same voltage, there is little parasitic capacitance between the turns.

Resistance: 10K Ohm (10,000)

Power: 12 watt.

High Temperature Silicone Coating

Complete Welded Construction

Technology: Ayrton-Perry winding Wirewound Non-inductive.

Operating Temperature: -55 °C to 350°C

Dimensions: 1.761" (44.7mm) Long x 0.394" (10mm) Diameter

Two 3/16 Quick Connect Terminals.

Element:  Copper-nickel alloy or nickel-chrome alloy, depending on resistance value

Core: Cordierite, steatite

More info: https://www.vishay.com/search?searchChoice=part&query=FST10%2F10K

Huntington Electric Inc. - New Old Stock

Alternates: MILLS-71928, FST010

Made in USA

Caddock Electronics Inc - MK132V-10K-1% Non-Inductive Resistor, Ceramic.

Resistance: 10K Ohm.

Power: 0.75 watt.

Tolerance: 1%.

Maximum Voltage: 400V.

Technology: Precision Power Film.

Package: Radial Leads 0.2"spacing.

Dimension: 0.29 x 0.29 x 0.95".

Caddock Electronics Inc - MS223N 10K 1% - Resistor, Non-Inductive. 10K Ohm 3W.

Resistance: 10 KOhm.

Power: 3 Watt.

Tolerance: 1%.

Voltage: 800V.

Material: Film, bonded to solid ceramic core.

High-temp silicone conformal coating.

Gold-plated leads.

High Voltage, High Temperature, Power Micronox.

More info: http://www.caddock.com/Online_catalog/Mrktg_Lit/TypeMS.pdf

Vishay - S102C 50K000 - High Precision Foil Resistor, 50.000K Ohms (50,000) 0.01%

The S102C 50K000 0.01% is a through-hole Foil Resistor with Bulk Metal® foil (BMF) technology for applications that require high precision and high stability. BMF technology allows us to produce customer orientated products, designed to satisfy challenging and specific technical requirements. It offers low TCR, excellent load life stability, tight tolerance, fast response time, low current noise, low thermal EMF and low voltage coefficient, all in one resistor. The S series is virtually insensitive to destabilizing factors. The resistor element is a solid alloy that displays the desirable bulk properties of its parent material, thus it is inherently stable and noise free. The S series resistor is the modern generation of precision resistor. The standard design of this resistor provides unique combination of characteristics found in no other single resistor.

Operating Temperature: -55 C t0 175 C

Composition: Bulk Metal Foil

Features: Moisture Resistant 

• Non inductive, non capacitive design
• Non hot spot design
• Lead (Pb)-free or tin/lead alloy terminal finish
• <0.08µH Typical low inductance
• <0.1ppm/V Voltage coefficient
• 0.05µV/°C Typical thermal EMF
• 1ns Effectively no ringing rise time
• Electrostatic discharge up to 25000V
• Voltage Rating 300V
• Tolerance: 0.01%
• 0.6W
• 4.5PPM
• Radial Leads
• Proudly Made in USA

OHMITE - 2401 - 270N-175PN-46 - Resistor, Ceramic.

A non-inductively wound resistor uses Ayrton-Perry Winding technique which has one winding in one direction and one in the other. Since there are the same number of turns of wire in each direction, the magnetic fields of the two wires cancel each other to nullify inductance. One disadvantage of this technique is that it requires twice the length of coil to make given resistance as compared to standard winding. Ayrton-Perry windings are used in resistor to eliminate parasitic inductance at high frequencies.

Resistance: 5 Ohm.

Power: 175 watt.

Non-inductive.

Mount: Panel.

Dimensions: 8.5" long x 1.142" wide x 1.25" high.

Contacts: radial lug.

Double marked 270N-175PN-46.