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Hammond 193L enclosed DC filter choke, 5H at 300 mA, chassis mount

Hammond 193L 5H 300mA Enclosed DC Filter Choke, 800VDC

Hammond Manufacturing|

MPN: 193L

|

UPC: 623980259406

In Stock
$76.67

Ships from and sold by A5 IT

Ground Shipping · $21.16Arrives by Monday, Oct 26
Order within 1h 7m to get it by Monday, Oct 26
New, with full manufacturer warranty
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Key Features

  • 5 H inductance at 300 mA rated DC current
  • 57 ohm resistance; 800 VDC maximum operating voltage
  • Enclosed 4-hole chassis mount case, X11 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 193L is a D.C. filter choke from the 193 Series of enclosed and potted chassis mount chokes, rated 5 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 193L gives 5 henries at 300 mA with 57 ohms resistance in the enclosed X11 case. The 193LP offers the same inductance and current in an epoxy-potted housing.

The 193L is an enclosed, 4-hole chassis mount choke using the X11 mounting style: Dimension A 3.13 in, B 3.75 in, C 3.81 in, D 2.50 in and E 2.44 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 193L has a resistance of 57 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 5.5 lbs, and the shipping weight is 5.5 lbs (2.49 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.)X11

Overview

StyleEnclosed
Series193 Series (Enclosed & Potted Chassis Mount)
Product TypeD.C. Filter Choke
Long DescriptionDC Filter Choke, Enclosed chassis mount, inductance 5H @ 300mA, 193 Series
Short DescriptionCHOKE 5H @ 300mA DC

Dimensions

Dimension A3.13 in
Dimension B3.75 in
Dimension C3.81 in
Dimension D2.50 in
Dimension E2.44 in

Electrical

Tolerance15% on both inductance and resistance
Inductance5H
Resistance57 Ohms
DC Current300 mA
Insulation Class105C
Inductance MeasurementMeasured at rated D.C. current
Maximum Operating Voltage800 VDC

Identifiers

UPC623980259406
UNSPSC39121301
Part Number193L

Packaging & Shipping

Shipping Weight5.5 lbs (2.49 kg)
Weight (Series Table)5.5 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 193L?▾

The 193L is rated 5H 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 193L?▾

800 VDC maximum operating voltage.

How is the 193L mounted?▾

It is an enclosed, 4-hole chassis mount choke in the X11 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 193L 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.