Audio Transformer

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  1. PICO - T-22030 - TF5R21ZZ - Shielded 100 Ohm CT/ 100 Ohm Split, Ultra Miniature Audio Transformer.
    Special Price $26.98 Regular Price $48.50 As low as $19.98

    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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  2. Triad Magnetics - SP62 - Transformer TF5RX17ZZ- AUDIO Output Transformer, Pri. 800 ohms, Sec. 3.2 ohm
    Special Price $10.98 Regular Price $16.50 As low as $8.98

    Triad/Magnetics - SP62 - Transformer TF5RX17ZZ- AUDIO Output Transformer, Pri. 800 Ohms CT, Sec. 3.2 ohm, 4mA

    This is a Red Spec audio transformers designed and constructed to meet the rigid requirements of MIL-T-27E. It features an epoxy molded case, gold plated leads and exceptional operation from 300 Hz to 60 kHz.

    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 .310 by .410 inch.

    5. Pin diameter = .020 inch.

    New Old Stock in Manufacturer's box with slight tarnishStarting to Tarnish due to age.

     

     

     

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  3. JENSEN - 25CV4 - Transformer, audio. 25VCT line transformer.
    Special Price $6.98 Regular Price $9.50

    JENSEN - 25CV4 Transformer, Audio.

    Professional Series "Constant Voltage" Transformer specially designed for "constant voltage" distribution system.

    Input (Primary): 25 Volt balanced or unbalanced line

    Output (Secondary): 8 - Ohm loudspeaker load

    Power to Speaker: 4, 2, 1/2, 1/4, 1/8 watts

    Frequency Response: +/- 1 dB, 50 - 10,000 Hz

    Useful Frequency Response: 30 - 20,000 Hz

    Total Harmonic Distortion: 1/2% Max. 100 - 15,000 Hz

    efficiency: 80% on 4 watt setting

    Nominal Core Size: 5/8" X 5/8"

    Overall Dimensions: 2 7/8"Wide, 1 9/16" Heights, 1 3/4" Depth

    Mounting Holes 1 3/16" diameter on 2 3/8" centers

    Coil/Coil/Core Insulation: 500 volts RMS, 60 Hz

    Net Weight: 9 Oz

    Vintage Genuine Jensen New Old Stock

    Cross: Z3631.

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  4. UTC - DO-T22 - Miniature Transistor Transformer 500 MW, 600-to-1.5K C.T.
    Special Price $9.98 Regular Price $19.99

    Miniature circuit board transformers, Output to Line PRi 1.5K CT, 3mA, Sec =600 Ohms AC = 600-OHM TO 1.5K-OHM CT, 500 MW,  TF 4RX 13 YY (BN-R-BLU 1.5KCT) (BK-G 600) Transistors Transformers (5) 2" leads, HERM-MIL-T-27A

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  5. UTC - H6839 - 6K to 75ohm Shielded Xfmr
    $12.95

    UTC - H6839 Shielded Audio Transformer

    Dimensions: 0.93" diameter x 1.4"

    Four solder terminals.

    6000-ohms @ 35mA DC to 75-ohms

    0.9Watt +/-2dB 300-4000Hz

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  6. Triad/Magnetek - SP60 - Transformer, audio. 320 Ohm CT to 3.2 Ohm.
    $9.95
    NOT IN STOCK - CALL FOR PRICE AND AVAILABILITY
    Transformer, audio. 320 Ohm CT to 3.2 Ohm, 50mW. 300-60KHz 150WV. Mount: PCB. Dimensions: 0.4" x 0.3" x 0.46" high with 0.78" leads. Note: Miniature. Learn More
  7. TACTEC - 3464575-3 - MiniDriver Xfmr 730-Ohm-to-170CT
    $3.95
    Transformer. MiniDriver 730 Ohm Pri to 170 OhmsCT. (At Primary 10mADC) E24 Z-core0.78" x 0.83" x 1" high, Mounts on 1.15" center holes -NEW 50/Box Pri:Blk&Red Sec: Blue, Yel(CT), Blu/Wht Learn More
  8. STANCOR - TTPC13 - Transformer. 600 Ohm to 600CT-Split.
    $3.95
    NOT IN STOCK - CALL FOR PRICE AND AVAILABILITY
    Transformer, telephone coupling. 600 Ohm to 600CT-Split, 90mA. DCR:73. Mount: PCB, 8 Pin. Dimensions: 0.750" long x 0.815" wide x 0.625" high. Weight: 0.5 oz. More info: http://www.stancor.com/pdfs/Catalog_2006/Pg_019_20.pdf Learn More
  9. PICO - PICO-2936 - Transformer, audio. 600 Ohm CT / 1.5KCT.
    $25.00
    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
  10. DATATRONICS LTD - PT7765 124-100131-0001B SAE2212 - Transformer. Digital line matching.
    Special Price $1.29 Regular Price $1.72

    Transformer. Digital line matching. = Stanford Applied Eng #2212 0.76" x 0.53" x 0.67" high 8-pins 124-100131-0001B

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  11. Triad/Magnetek - SP43 - Transformer, audio. 300 Ohm to 12 Ohm.
    $9.50
    Transformer, audio. 300 Ohm CT @ 7mA DC to 12 Ohm CT 50mW. 300-60,000CPS. 150WV. Cross: TRF5RX17ZZ. Mount: PCB. Dimensions: 10.2mm wide x 7.8mm deep x 11.4mm high. Package: 5 radial leads. Learn More
  12. PICO - S21255 - Transformers, audio. 1.2KCT.
    $19.95
    Transformers, audio. 1.2KCT to 1.2KCT shielded. Mount: PCB. Dimensions: 0.75"OD x 0.52" high, long wire leads. Cross: TF5R21ZZ. Learn More
  13. PICO - S21185 - Audio Transformer 600-Ohm CT / 600-Ohm CT
    Special Price $32.95 Regular Price $39.00
    NOT IN STOCK - CALL FOR PRICE AND AVAILABILITY
    Audio Transformer 600-Ohm CT / 600-Ohm CT Double marked TF5R21ZZ Mil report 5950-011632599. Learn More
  14. PICO - TF5S40ZZ - PICO-32145 Transformer miniature
    $24.99
    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
  15. PICO - C3187 - Transformer, audio. Ultra-miniature 600CT / 600CT.
    $26.00
    Transformer, audio. Ultra-miniature 600CT / 600CT to 20kHz 500mw. Dimensions: 8.6mm D x 10mm tall. Six 25mm wire leads. Dual 150-ohm windings (combined) on each side. Federal P/N's: 01-268-8395, military NSN 5950012688395. Some are made by TRW/UTC. Application: It is generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices. Learn More
  16. MICROTRAN - MT34-H - AUDIO TRANSFORMERS
    $59.00
    NOS 5:1 AUDIO TRANSFORMERS HERM SEALED 8-Solder Terminals. (PRI IMPED 10,000/2500 SPLIT SEC IMPED 2000/500 SPLIT PRI DC. UNBALANCE MA.4 OPERATING LEVEL DBM 20 ( Explosion Proof? ) Learn More
  17. DATATRONICS LTD - PT71442 - Transformer, audio. 124-100680-0001.
    $1.33
    NOT IN STOCK - CALL FOR PRICE AND AVAILABILITY

    Transformer, audio. Datatronics/David Systems 124-100680-0001. Semi-shielded transformer or pot core, 5-terminals. Dimensions: 0.685" D x 0.5" above board. Note: No other info available. Nicely made.

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  18. Datatronics LTD - PT7764 - Transformer, audio. Proprietary part number.
    $12.49
    Transformer, audio. Proprietary part number. Mount: PCB, 10 pin. Dimensions: 1.060" long x 1.183" wide x 0.792" above board. New. Note: Double marked 124-100164-0004 Rev C. Learn More
  19. Mouser - TL016 - Transformer, HI Q Magnetic, Ultra-Mini Audio, Pri./Sec. Impedance 600R, Turn Ratio is 1:1.
    Special Price $1.49 Regular Price $2.00 As low as $0.78

    Mouser - TL016 - 42TL016 -Transformer, HI Q Magnetic Ultra-Mini Audio.

    Status: Discontinued

    Primary/Secondary Impedance: 600R,

    Turn Ratio is 1:1.

    Dimensions: Width 15mm X Length 15mm X Height (Minus Leads) 12.5mm

    Core type/size: EI-14

    • Impedance variation: ±10% @ 1KHz
    • D.C. resistance tolerance: ±15%
    • Insulation: >10MΩ @ 100VDC
    • Breakdown voltage: 100VAC HIPOT for 1 minute
    • Maximum output: 75mW
    • Frequency response: ±3dB, 300Hz-3.4KHz @ 1KHz 0dB
    • Waxing: vacuum treatment
    • Other: can be water washed with water temperature @ <20°C.
    • PC leads are soft metal wire and can be adjusted to fit a variety of applications.
    • RoHS Compliant

    Alternates: 42TL016, 42TL016-RC

    Worldwide Part: TL016-5733981

    Original Mouser P/N: 52106-000-00

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  20. UTC - JR-904 - TF4RX17YY - Transformer, Audio. 100 Ohm CT to Dual 1.5Meg. Gold leads.
    Special Price $34.98 Regular Price $65.00

    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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  21. Unidentified MFG - MCKT35000086 - Transformer, audio. Used.
    $6.00
    Transformer, audio, Primary: 280 Ohm. Secondary: 50 Ohm CT. Mount: panel/chassis. Dimensions: 1" square x 1-1/3" high. Used/Removed from equipment. Learn More
  22. Unidentified MFG - MCKT35000085 - Transformer, audio. 50 Ohm CT. Used.
    $7.50
    Transformer, audio. Primary: 280 Ohm. Dual secondaries: each 50 Ohm CT. Mount: panel/chassis. Dimensions: 1" square x 1-1/3" high. Used. Learn More
  23. TRANSFORMER TECH - TF4RX13YY - Transformer, Audio.
    Special Price $18.98 Regular Price $24.50 As low as $14.98

    TRANSFORMER TECH - TF4RX13YY Transformer, Audio.

    A transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. The maximum value may extend into the radio frequency range. It is generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices.

    8 Tab Solder Lug  PCB = Leads 1 2 3: 10K/12.5KCT, Leads: 4 5 6: 1.2K/1.5KCT.

    IMPEDANCE RATING IN OHMS: 50.0 NOMINAL AND 200.0 NOMINAL SINGLE COMPONENT 1ST SECONDARY 125.0 NOMINAL AND 500.0 NOMINAL SINGLE COMPONENT 2ND SECONDARY 15000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY

    FREQUENCY RATING: 50.0 HERTZ MINIMUM AND 20.0 KILOHERTZ MAXIMUM SINGLE COMPONENT

    (NON-CORE DATA) FREQUENCY RESPONSE TOLERANCE IN DECIBELS: -2.0 TO 2.0 SINGLE COMPONENT

    MAXIMUM TRANSFORMER POWER RATING: 200.0 MILLIWATTS SINGLE COMPONENT     

    Package: Small Shielded Can, 6 Long Gold Leads.

    Dimensions: 8.3mm D x 10.7mm high.

    NSN: 5950-00-539-7051

    Part Alternates: TF4RX13YY, H22, 58A5A2551, 58A5A255-1, 5950-00-539-7051, 00-539-7051, 5950005397051, 005397051

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  24. STANCOR - TF5S21ZZ - Transformers, Audio. 600-Ohm to 600-Ohm.
    Special Price $8.98 Regular Price $12.50 As low as $7.98

    STANCOR - TF5S21ZZ - PCT-78 - Transformers, Miniature Encapsiulated Audio. 600-Ohm to 600-Ohm.

    (1-2 600-OHM, 3-4 600-OHM).

    Type: SP70

    Max. Power Level @ 300Hz: 50 mW

    Turns Ratio: 1/0/1.0

    DiElectric strength: 500 Vrms

    RMS Test Voltage: 1500

    Thermal Shock 5 cucles @ -55 C to 105 C

    Response: +/- 2 db 300 Hz to 100 kHz

    Max. Distortion: 10 to25% at Rated Power

    Resistance: Pri. 70 Ohms, Sec. 95  Ohms

    Meets requirements of MIL-T-27

    Mount: PCB 4 pin Molded, Encapsulated, Green with Gold leads.

    Dimensions: Width 0.310" X Height 0.465" X Length 0.410"

    Weight: .111 Oz.

    Stancor PCT-78.

     

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