Low Profile Audio TransformersSeries 78000
78003 render 1

78003

Series 78000 – Low Profile Audio Transformer

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Specifications

MountingSquare SMT - Gull Lead
Frequency Range (±3 dB)300 Hz to 200 kHz
≥ 1kHz Maximum Power (W)0.4
≥ 300Hz Power (W)0.05
Primary Impedance (Ω)10
Secondary Impedance (Ω)10
Turns Ratio (Prim/Sec) -- Series Connection1:1
Turns Ratio (Prim/Sec) -- Parallel Connection2:1
Primary Unbalanced DC Current (mA)31.6
Primary DC Resistance (Ω)0.83
Secondary DC Resistance (Ω) -- Series1.16
Secondary DC Resistance (Ω) -- Parallel0.29
Dielectric Withstanding Voltage (Vrms)200
Insulation Resistance at 300VDC≥ 10 GΩ
Operational Temperature (°C)-55 to +130
Typical Weight (g)3
Size (L x W x H) inches0.55" x 0.55" x 0.24"
Moisture Sensitivity Level3
CaseGlass Reinforced Polymer
ConstructionEncapsulated
Manufactured toMIL-PRF-27
Magnetic ShieldingYes

Description

The 78000 series are ultra-miniature transformers in an encapsulated package with design layout as surface mount gull-wing leads. In comparison to Pico’s typical audio transformers, these are compact for PCB space, where height is an issue and electrical specifications do not need to be compromised. These low profile audio transformers can operate over a wide temperature range of -55°C to +130°C and allows wide frequency bandwith. Our proprietary materials and methods allow extreme temperatures of vapor phase, IR or other reflow procedures without degrading the high reliability of their physical form and electrical performance. Pico audio transformers provide galvanic isolation, signal gain/loss, match impedances between two interfaces, can be used as a reference and to provide feedback signal.