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Hammond 193D enclosed DC filter choke, 8H at 150 mA, chassis mount

Hammond 193D 8H 150mA Enclosed DC Filter Choke, 600VDC

Hammond Manufacturing|

MPN: 193D

|

UPC: 623980258904

In Stock
$51.10

Ships from and sold by A5 IT

Ground Shipping · $20.38Arrives by Tuesday, Oct 27
New, with full manufacturer warranty
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Key Features

  • 8 H inductance at 150 mA rated DC current
  • 75 ohm resistance; 600 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 193D is a D.C. filter choke from the 193 Series of enclosed and potted chassis mount chokes, rated 8 henries at 150 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 193D offers 8 henries at 150 mA with a relatively low 75 ohm DC resistance in the enclosed X8 case.

The 193D 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 193D has a resistance of 75 ohms and a maximum operating voltage of 600 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 8H @ 150mA, 193 Series
Short DescriptionCHOKE 8H @ 150mA 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
Inductance8H
Resistance75 Ohms
DC Current150 mA
Insulation Class105C
Inductance MeasurementMeasured at rated D.C. current
Maximum Operating Voltage600 VDC

Identifiers

UPC623980258904
UNSPSC39121301
Part Number193D

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 193D?▾

The 193D is rated 8H at 150 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 193D?▾

600 VDC maximum operating voltage.

How is the 193D 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 193D 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.