• Mil-T-27E Red Spec Printed Circuit Audio Transformers
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.
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Item #

Frequency Response Range

Mil Type Number

Power Level

Matching Impedance (Primary)

Primary Impedance

Secondary Impedance

Features

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Quantity
SP-4 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 10 mW N/A 200000 ohm Center Tap N/A 200000 Ohm N/A 1000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-5 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 25 mW N/A 50000 ohm Center Tap N/A 50000 Ohm N/A 1000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-13 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 40 mW N/A 20000 ohm Center Tap 25000 Ohm Center Tap N/A 20000 Ohm25000 Ohm N/A 800 Ohm1000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-20 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm Center Tap N/A 10000 Ohm N/A 1200 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-21 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm Center Tap N/A 10000 Ohm N/A 2000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-22 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm N/A 10000 Ohm N/A 500 Ohm2000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-29 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm Center Tap N/A N/A 500 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-32 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 500 Ohm N/A 500 Ohm N/A 50 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-33 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 1000 Ohm N/A 1000 Ohm N/A 50 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-42 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 150 ohm Center Tap N/A 150 Ohm N/A 12 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-48 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 7500 ohm Center Tap N/A 7500 Ohm N/A 12 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-49 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 300 ohm Center Tap N/A 300 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-50 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 500 Ohm Center Tap N/A 500 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-51 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 900 ohm Center Tap N/A 900 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-52 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 1500 ohm Center Tap N/A 1500 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-66 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm Center Tap N/A 10000 Ohm N/A 10000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-67 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 600 Ohm Center Tap N/A 600 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-68 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 10000 Ohm N/A 10000 Ohm N/A 2500 Ohm10000 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-69 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 600 Ohm N/A 600 Ohm N/A 150 Ohm600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-70 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A 50 mW N/A 600 Ohm N/A 600 Ohm N/A 600 Ohm N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-128 N/A 300 Hz to 100 kHz N/A TF5S21ZZ N/A N/A N/A N/A N/A Epoxy Molded Case
Exceptional Operation from 300 Hz to 100 kHz
Gold Plated Leads 		N/A CAD Icon (for items table)
SP-310 N/A N/A Mu Shield Only N/A N/A N/A N/A N/A Designed to fit all SP and MET audio transformers. N/A CAD Icon (for items table)
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