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Hammond 193K enclosed DC filter choke, 2.6H at 300 mA, chassis mount

Hammond 193K 2.6H 300mA Enclosed DC Filter Choke, 800VDC

Hammond Manufacturing|

MPN: 193K

|

UPC: 623980259307

In Stock
$57.93

Ships from and sold by A5 IT

Ground Shipping · $20.38Arrives by Monday, Oct 26
Order within 3h 43m to get it by Monday, Oct 26
New, with full manufacturer warranty
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Key Features

  • 2.6 H inductance at 300 mA rated DC current
  • 21 ohm resistance; 800 VDC maximum operating voltage
  • Enclosed 4-hole chassis mount case, X8 mounting style with .203 x .38 in slots
  • Vacuum impregnated with polyurethane varnish for quiet, long-life operation
  • 15% tolerance on inductance and resistance; inductance measured at rated DC
  • Minimum 8 in long leads
  • Insulation class 105C; operating range -40C to 65C
  • RoHS and REACH compliant

The Hammond 193K is a D.C. filter choke from the 193 Series of enclosed and potted chassis mount chokes, rated 2.6 henries at 300 mA DC. It is designed for high voltage power supply filtering, and is a natural fit for tube amplifier builders, audio equipment restorers and OEM engineers designing linear DC supplies.

The 193K is a low-inductance, low-resistance choke: 2.6 henries at 300 mA with only 21 ohms of resistance, in the compact X8 enclosed case and rated to 800 VDC.

The 193K is an enclosed, 4-hole chassis mount choke using the X8 mounting style: Dimension A 2.50 in, B 3.25 in, C 3.06 in, D 2.00 in and E 2.19 in, with .203 x .38 in mounting slots. The unit is vacuum impregnated with polyurethane varnish for quiet, long-life operation, has minimum 8 in long leads, and its case matches power transformers and tube audio output transformers.

Electrically, the 193K has a resistance of 21 ohms and a maximum operating voltage of 800 VDC. Inductance is measured at rated D.C. current, with a tolerance of 15% on both inductance and resistance; the unit will exhibit less inductance at slightly higher currents and more at lower currents. Insulation class is 105C and the operating temperature range is -40C to 65C. The part is RoHS and REACH compliant.

The series table lists a weight of 3.25 lbs, and the shipping weight is 3.3 lbs (1.50 kg).

Ideal For

  • High voltage power supply filtering
  • Tube audio equipment power supplies
  • Tube audio equipment matching Hammond power and output transformer cases
  • Chassis mount DC filter in linear power supplies

Mounting

Mounting TypeEnclosed, 4-hole chassis mount
Mounting Slot (G).203 x .38 in
Mounting Style (Dimension Ref.)X8

Overview

StyleEnclosed
Series193 Series (Enclosed & Potted Chassis Mount)
Product TypeD.C. Filter Choke
Long DescriptionDC Filter Choke, Enclosed chassis mount, inductance 2.6H @ 300mA, 193 Series
Short DescriptionCHOKE 2.6H @ 300mA DC

Dimensions

Dimension A2.50 in
Dimension B3.25 in
Dimension C3.06 in
Dimension D2.00 in
Dimension E2.19 in

Electrical

Tolerance15% on both inductance and resistance
Inductance2.6H
Resistance21 Ohms
DC Current300 mA
Insulation Class105C
Inductance MeasurementMeasured at rated D.C. current
Maximum Operating Voltage800 VDC

Identifiers

UPC623980259307
UNSPSC39121301
Part Number193K

Packaging & Shipping

Shipping Weight3.3 lbs (1.50 kg)
Weight (Series Table)3.25 lbs

Construction & Finish

Lead LengthMinimum 8 in
ImpregnationVacuum impregnated with polyurethane varnish

Environmental & Protection

Operating Temperature Range-40C to 65C

Compliance & Certifications

RoHS CompliantYes
REACH CompliantYes

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Frequently Asked Questions

What are the inductance and current ratings of the 193K?▾

The 193K is rated 2.6H at 300 mA DC, with inductance measured at rated D.C. current and a 15% tolerance on inductance and resistance.

What is the maximum operating voltage of the 193K?▾

800 VDC maximum operating voltage.

How is the 193K mounted?▾

It is an enclosed, 4-hole chassis mount choke in the X8 mounting style with .203 x .38 in mounting slots.

Why does my measured inductance differ from the rating?▾

Inductance is specified at rated D.C. current; units exhibit less inductance at slightly higher currents or more at lower currents. The manufacturer notes that proper henry testing requires an LCR meter in junction with a 25A power supply that allows DC bias and a higher applied AC drive voltage.

What temperature and insulation ratings does the 193K have?▾

Insulation class is 105C and the operating temperature range is -40C to 65C.

Are open bracket-mount versions available?▾

For more sizes and voltages in an open, bracket mount type, the manufacturer points to its 153-159 Series.