Audio Transformer

PICO - T-22030 - TF5R21ZZ - Shielded 100 Ohm CT/ 100 Ohm Split, Ultra Miniature Audio Transformer.

Audio Transformers are transformers that are used over the audio frequency range. Audio Transformers are used in a variety of applications. They can provide galvanic isolation, signal gain/loss, match impedances between two interfaces, can be used as a reference and to provide feedback signal. Pico Electronics’ Audio Transformers are manufactured to MIL-PRF-27 Grade 5 Class S. These ultra-miniature transformers are made for durability while maintaining their electrical characteristics. All catalog transformers are manufactured to meet Mil-Std-202, method 107, thermal shock from -55°C to +130°C. All units can be manufactured with a 300 thermal cycle guarantee. Standard as well as custom designs are available. Pico Electronics, Inc. is an approved QPL source.

Specifications:

• MIL-PRF-27: All units manufactured to MIL-PRF-27, Grade 5, Class S.
• FREQUENCY RESPONSE:±3db, 20 Hz - 25 KHz at 1.0 Milliwatt.
• MAXIMUM DISTORTION: 5% With Rated Power Level at 1 KHz and 300 Hz. 10% Distortion at 20 Hz.
• DIELECTRIC STRENGTH: All Units Tested at 200 V RMS.
• INSULATION RESISTANCE: Greater Than 10,000 Megohms at 300 V DC.
• WEIGHT: 28 Grams.
• OPERATING TEMPERATURE: -55º C to +130º C. 
• TERMINALS: Solid .020 Diameter Conductor. Solderability per MIL-STD-202 Method 208.
• THERMAL SHOCK: 25 Cycles, Method 107, MIL-STD-202, Test Condition -55º C to +130º C.

Shielded 100 Ohm CT/ 100 Ohm Split Winding in Series, Hermetically Sealed - 7 Wire.

Secondary Impedance Ohms Split Winding in Parallel: 25.00 Ohms.

Frequency response: 3

Power Watt 1 KHzand higher: 3.000

Power Watt 300 Hz and higher: 2.000

Power Watt 20 hZ and higher: 0.006

Primary Unbalanced DC Current mA: 10.00

Primary DC Resistance  Ohm: 8.00

Secondary DC Resistance Ohm Series Conn: 10.00

Secondary DC Resistance Ohm Parallel Conn: 2.50

Turns Ratio pri/Sec Sec Seri Conn: 1.01

Turns Ratio Pri/Sec Parallel Conn: 2.01

NSN: 5950-01-240-4210

Alternates: W-26095, R-20045, Y-27310, W-26085, Y-27505, S-21440

Package: 0.75" D x 0.82" high.

Additional Data: https://www.picoelectronics.com/

 

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Transformer, audio. 600 Ohm CT / 1.5KCT. Ultra-miniature. Mount: PCB. Dimensions: 0.375" (9.5mm) D x 0.375" (9.5mm) high with 7 radial leads. Note: Double marked TF5R21ZZ. Learn More

Audio Transformer 600-Ohm CT / 600-Ohm CT Double marked TF5R21ZZ Mil report 5950-011632599. Learn More

PICO-32145 Ultra Miniature dc to dc converter transformers input 5V Double marked PICO-32145 Military Transformers, 4cm Leads 10-pin pcb mount.1-2-3 5VDC 8-9-10 FB 4-(5+6)-7 14VDC 4.5W Learn More

PICO - C3187 Transformer, Audio.

Audio transformers are low-power signal devices optimized for transmission of wide-frequency AC signals with very low distortion. The transformer has no direct connection between the primary and secondary windings, the electrical energy transferred using electromagnetic induction. Due to this isolated property between primary and secondary, the transformer provides electrical isolations between primary and secondary, which means from the input and output or vice versa. 

Ultra-Miniature 600CT / 600CT to 20kHz 500mw.

Fequency Rating: 400.0 hertz minimum single component and 100.0 kilohertz maximum single component

Mounting Bolt Circle: 0.200" Nominal Single Mounting Facility Single Center Group

Inclosure Type: Fully inclosed

Winding Operating Current: 4.0 milliamperes dc nominal single component single primary

Six 25mm Wire Leads.

Dual 150-ohm windings (combined) on each side.

Dimensions: Length 0.360 X Diameter 0.350 (10mm X 8.6mm)

Federal P/N's: 01-268-8395, Military NSN 5950-01-268-8395.

MIL-Spec P/N: MIL-PRF-27/103-016

Some are made by TRW/UTC.

Application: Generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices.

Made in USA

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UTC - JR-904 - TF4RX17YY Transformer, audio.

100 Ohm CT to Dual 1.5Meg Ohm Audio.

+/-0.2 Db 1-8KHz

1.33 X 10 -6 Watts

working Voltage 50

Pre-owned, Removed From Equipment.

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