TR21

Technical Characteristics

• Thread Class

  2a

• Coil Form Type

  hollow

• Adjustment Device Drive Type

  slotted screw

• Inclosure Type

  fully inclosed

• Mounting Method

  threaded bushing

• Rating Method

  electrical

• Cubic Measure

  1.5 cubic inches

• Nominal Thread Size

  0.250 inches

• Adjustment Method And Quantity

  2 adjustable core

• Terminal Type And Quantity

  4 solder stud

• Thread Direction

  right-hand

• Reliability Indicator

  not established

• Turn Quantity

  230

• Turn Quantity

  390

• Inductance Rating

  0.36 microhenries minimum and 1.00 microhenries maximum

• Inductance Rating

  1.55 microhenries minimum and 2.17 microhenries maximum

• Frequency Rating

  250.0 kilohertz maximum

• Winding Shielding Method

  inclosure grounded

• Body Length

  0.906 inches nominal

• Body Width

  0.906 inches nominal

• Body Height

  1.812 inches nominal

• Winding Function And Quantity

  1 primary and 1 secondary

• Thread Series Designator

  unf