Low Profile Audio Transformers

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.

For more information on our qualified military products, or QPL audio transformers, please visit our separate page for MIL-spec partsOpens a new window.

Primary Impedance (Ω)

Secondary Impedance (Ω)

Part Number SeriesMountingFrequency Range (±3 dB)≥ 1kHz Maximum Power (W)≥ 300Hz Power (W)Primary Impedance (Ω)Secondary Impedance (Ω)Turns Ratio (Prim/Sec) — Series ConnectionTurns Ratio (Prim/Sec) — Parallel ConnectionPrimary Unbalanced DC Current (mA)Primary DC Resistance (Ω)Secondary DC Resistance (Ω) — SeriesSecondary DC Resistance (Ω) — ParallelSize (L x W x H) inchesDownloads
7850578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00010,0001:118331166.60.55″ x 0.55″ x 0.24″
7850078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00010,0001:12:118331166.6291.60.55″ x 0.55″ x 0.24″
7849578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00075001.15:12.3:11833875218.750.55″ x 0.55″ x 0.24″
7849078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00050001.41:12.83:11833583.3145.830.55″ x 0.55″ x 0.24″
7848578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00020002.24:14.47:11833233.3358.330.55″ x 0.55″ x 0.24″
7848078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00015002.58:15.16:1183317543.750.55″ x 0.55″ x 0.24″
7847578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00012002.89:15.77:11833140350.55″ x 0.55″ x 0.24″
7847078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00010003.16:16.32:11833116.629.160.55″ x 0.55″ x 0.24″
7846578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,0006004.08:18.16:118337017.50.55″ x 0.55″ x 0.24″
7846078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,0005004.47:18.94:1183358.314.580.55″ x 0.55″ x 0.24″
7845578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,0002007.07:114.14:1183323.35.830.55″ x 0.55″ x 0.24″
7845078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00010010:120:1183311.662.910.55″ x 0.55″ x 0.24″
7844578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,0001625:150:118331.860.460.55″ x 0.55″ x 0.24″
7844078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510,00012.828:156:118331.490.370.55″ x 0.55″ x 0.24″
7843578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05900090001:117501.050.55″ x 0.55″ x 0.24″
7843078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05800012002.58:11.1666.61400.55″ x 0.55″ x 0.24″
7842578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05800010002.83:15.66:11.1666.6116.629.160.55″ x 0.55″ x 0.24″
7842078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05800012.825:150:11.1666.61.490.370.55″ x 0.55″ x 0.24″
7841578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05750075001:11.16258750.55″ x 0.55″ x 0.24″
7841078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05750025001.73:13.46:11.2625291.672.90.55″ x 0.55″ x 0.24″
7840578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0575006003.54:17.07:11.26257017.50.55″ x 0.55″ x 0.24″
7840078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0575001008.66:117.3:11.262511.662.910.55″ x 0.55″ x 0.24″
7839578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0575005012.2:124.5:11.26255.831.450.55″ x 0.55″ x 0.24″
7839078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05500050001:12:11.2416.6583.3145.80.55″ x 0.55″ x 0.24″
7838578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0550005003.16:16.32:11.4416.658.314.580.55″ x 0.55″ x 0.24″
7838078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05400080001:1.411.4333.3933.30.55″ x 0.55″ x 0.24″
7837578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05400010002:14:11.6333.3116.629.160.55″ x 0.55″ x 0.24″
7837078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540006002.58:15.16:11.6333.37017.50.55″ x 0.55″ x 0.24″
7836578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540001615.8:131.6:11.6333.31.860.460.55″ x 0.55″ x 0.24″
7836078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05360036001:12:11.63004201050.55″ x 0.55″ x 0.24″
7835578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05300030001:11.72503500.55″ x 0.55″ x 0.24″
7835078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05300030001:12:11.825035087.50.55″ x 0.55″ x 0.24″
7834578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05200025001:12:11.8166.6291.672.40.55″ x 0.55″ x 0.24″
7834078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05200080001:21:12166.6933.3233.30.55″ x 0.55″ x 0.24″
7833578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05200020001:12.2166.6233.30.55″ x 0.55″ x 0.24″
7833078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05200020001:12:12.2166.6233.358.330.55″ x 0.55″ x 0.24″
7832578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.052000815.8:131.6:12.2166.60.930.230.55″ x 0.55″ x 0.24″
7832078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05160012.811.2:122.4:12.5133.31.490.370.55″ x 0.55″ x 0.24″
7831578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05150015001:12.61251750.55″ x 0.55″ x 0.24″
7831078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0515006001.58:12.6125700.55″ x 0.55″ x 0.24″
7830578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0515005001.73:13.46:12.612558.314.580.55″ x 0.55″ x 0.24″
7830078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0515001211.2:122.4:12.61251.40.350.55″ x 0.55″ x 0.24″
7829578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05120012001:12.91001400.55″ x 0.55″ x 0.24″
7829078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05120012001:12:12.9100140350.55″ x 0.55″ x 0.24″
7828578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0512005001.55:13.1:12.910058.314.580.55″ x 0.55″ x 0.24″
7828078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05120012.89.68:119.4:12.91001.490.370.55″ x 0.55″ x 0.24″
7827578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05106012.89.1:118.2:13.188.31.490.370.55″ x 0.55″ x 0.24″
7827078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05100010001:12:13.283.3116.629.150.55″ x 0.55″ x 0.24″
7826578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051000504.47:18.94:13.283.35.831.450.55″ x 0.55″ x 0.24″
7826078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051000129.13:118.3:13.283.31.40.350.55″ x 0.55″ x 0.24″
7825578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.059006001.22:12.45:13.3757017.50.55″ x 0.55″ x 0.24″
7825078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.058008001:12:13.566.693.323.30.55″ x 0.55″ x 0.24″
7824578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05800484.08:18.16:13.566.65.61.40.55″ x 0.55″ x 0.24″
7824078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0580012.87.9:115.8:13.566.61.490.370.55″ x 0.55″ x 0.24″
7823578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.057001002.65:15.29:13.858.311.62.910.55″ x 0.55″ x 0.24″
7823078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0564012.87.07:114.4:13.953.31.490.370.55″ x 0.55″ x 0.24″
7822578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0560012001:1.411.41:14.150140350.55″ x 0.55″ x 0.24″
7822078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.056006001:14.150700.55″ x 0.55″ x 0.24″
7821578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.056006001:12:14.1507017.50.55″ x 0.55″ x 0.24″
7821078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.056002001.73:13.46:14.15023.35.830.55″ x 0.55″ x 0.24″
7820578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05600483.54:17.07:14.1505.61.40.55″ x 0.55″ x 0.24″
7820078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05600304.47:18.94:14.1503.50.8750.55″ x 0.55″ x 0.24″
7819578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0560012.86.85:113.7:14.1501.490.370.55″ x 0.55″ x 0.24″
7819078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.055006001:1.11.83:14.541.67017.50.55″ x 0.55″ x 0.24″
7818578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.055005001:14.541.658.30.55″ x 0.55″ x 0.24″
7818078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.055005001:12:14.541.658.314.580.55″ x 0.55″ x 0.24″
7817578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.055001501.83:13.65:14.541.617.54.370.55″ x 0.55″ x 0.24″
7817078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05500503.16:16.32:14.541.65.831.450.55″ x 0.55″ x 0.24″
7816578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05500165.6:111.2:14.541.61.860.460.55″ x 0.55″ x 0.24″
7816078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0550012.86.25:112.5:14.541.61.490.370.55″ x 0.55″ x 0.24″
7815578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540040001:3.161:1.58533.3466.6116.60.55″ x 0.55″ x 0.24″
7815078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540020001:2.241:1.12533.3233.358.30.55″ x 0.55″ x 0.24″
7814578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540010001:1.581.26:1533.3116.629.160.55″ x 0.55″ x 0.24″
7814078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.054004001:12:1533.346.611.660.55″ x 0.55″ x 0.24″
7813578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.054002001.41:12.83:1533.323.35.830.55″ x 0.55″ x 0.24″
7813078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.054001201.83:13.65:1533.3143.50.55″ x 0.55″ x 0.24″
7812578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05400403.16:16.32:1533.34.661.160.55″ x 0.55″ x 0.24″
7812078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0532012.85:110:15.626.61.490.370.55″ x 0.55″ x 0.24″
7811578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.053006001:1.411.41:15.8257017.50.55″ x 0.55″ x 0.24″
7811078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.053003001:12:15.825358.750.55″ x 0.55″ x 0.24″
7810578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.053001501.41:12.83:15.82517.54.370.55″ x 0.55″ x 0.24″
7810078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05300502.45:14.9:15.8255.81.450.55″ x 0.55″ x 0.24″
7809578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05300125:110:15.8251.40.350.55″ x 0.55″ x 0.24″
7809078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.052002001:12:1716.623.35.830.55″ x 0.55″ x 0.24″
7808578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051506001:21:18.212.57017.50.55″ x 0.55″ x 0.24″
7808078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051501501:12:18.212.517.54.370.55″ x 0.55″ x 0.24″
7807578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051501001.22:12.45:18.212.511.62.910.55″ x 0.55″ x 0.24″
7807078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05150501.73:13.46:18.212.55.81.450.55″ x 0.55″ x 0.24″
7806578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05150123.54:17.08:18.212.51.40.350.55″ x 0.55″ x 0.24″
7806078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051201201:12:19.110143.50.55″ x 0.55″ x 0.24″
7805578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05120601.41:12.83:19.11071.750.55″ x 0.55″ x 0.24″
7805078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0512012.83.06:16.12:19.1101.490.370.55″ x 0.55″ x 0.24″
7804578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.051001001:12:1108.3311.62.910.55″ x 0.55″ x 0.24″
7804078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.05100401.58:13.16:1108.334.661.160.55″ x 0.55″ x 0.24″
7803578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0580321.58:13.16:111.16.663.730.930.55″ x 0.55″ x 0.24″
7803078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0550501:12:114.14.165.81.450.55″ x 0.55″ x 0.24″
7802578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0548161.73:13.46:114.441.860.460.55″ x 0.55″ x 0.24″
7802078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0540401:12:115.83.334.661.160.55″ x 0.55″ x 0.24″
7801578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0532321:12:117.62.663.730.930.55″ x 0.55″ x 0.24″
7801078000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0520201:12:122.31.662.330.580.55″ x 0.55″ x 0.24″
7800578000Square SMT – Gull Lead300 Hz to 200 kHz0.40.052081.58:13.16:122.31.660.930.230.55″ x 0.55″ x 0.24″
7800378000Square SMT – Gull Lead300 Hz to 200 kHz0.40.0510101:12:131.60.831.160.290.55″ x 0.55″ x 0.24″