Triad high reliability audio transformers provide the durability and precision required in today's demanding designs. These transformers are available for a wide variety of applications. The line of Red Spec audio transformers is designed and constructed to meet the rigid requirements of MIL-T-27E. These transformers feature an epoxy molded case, gold plated leads and exceptional operation from 300 Hz to 100 kHz.
Unit of Measure

Check Stock

Click here to check stock >>



Frequency Response Range

N/A 300 Hz to 100 kHz

Mil Type Number


Power Level

N/A 50 mW

Matching Impedance (Primary)

N/A 500 Ohm Center Tap

Matching Impedance (Secondary)

N/A 600 Ohm

Max. Primary Unbalanced DC Current

N/A 3.0 mA

DC Resistance (Primary)

N/A 67.0 Ohm

DC Resistance (Secondary)

N/A 98.0 Ohm

Overall Turns Ratio

N/A 1.0:1.1

Industry Standards

N/A Mil-T-27E

Transformer Contact Type

N/A Center Tap

Primary Impedance

N/A 500 Ohm

Secondary Impedance

N/A 600 Ohm


N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads

Technical Notes


  1. Plug-in terminals are precision spaced to provide fixed mounting centers.
  2. Red Spec transformers are hi-pot tested at 1,000 VRMS.
  3. 150 VDC working voltage.
  4. Red Spec transformers feature small footprint base dimensions of 0.310 by 0.410 inch.
  5. Pin diameter = 0.020 inch.