The 101F is a miniature, epoxy-potted, 1:1 audio transformer with 600 ohm center-tapped windings on both sides. Designed for P.C. board mounting with pin-type terminals, it fits audio and telecom engineers who need 600 ohm isolation or balancing in a small, sealed package.
Rugged black epoxy potting makes a completely sealed unit that withstands severe environmental conditions, at a net weight of only 0.1 oz. Because the turns ratio is 1:1 and either winding may serve as the primary, the 101F can be installed in either direction.
According to the 101F drawing, typical output power is 0.100 W and frequency response is +/-0.5 dB from 200 Hz to 100 kHz. DC resistance is 44 ohms on primary pins 1-3 (22/22 ohms per half) and 52 ohms on secondary pins 6-8 (26/26 ohms). Inductance at 1.0 kHz, 1.0 V open circuit is 288 mH on each winding, with 2.86 kilohm impedance, and leakage inductance is 0.40 mH. Dielectric strength is 100 Vrms, and pins 4 and 5 have no connection.
Storage temperature is -40 to 105 degrees C and operating temperature is -40 to 85 degrees C. The drawing notes that the casting epoxy has a workable range of -40 to +105 degrees C under a normal rate of change, excluding thermal shock, and that material variations and environmental conditions may reduce it. The series data adds +/- 0.5 dB performance at +10, +15 and +20 dBm. This part is RoHS and REACH compliant.
| Series | 101 Series Miniature Audio Potted |
| Description | Audio transformer, potted, primary impedance 600 CT, secondary impedance 600 CT |
| Product Type | Audio transformer, potted |
| Short Description | AUDIO TX POTTED |
| Net Weight | 0.1 oz |
| Turns Ratio | 1:1 |
| Winding Use | Secondary may be used as primary and primary as secondary |
| Output Power | 0.100 W |
| No Connection | Pins 4 & 5 |
| DCR Primary 1-3 | 44 ohms (22 ohms / 22 ohms) |
| DCR Secondary 6-8 | 52 ohms (26 ohms / 26 ohms) |
| Frequency Response | +/-0.5 dB from 200 Hz to 100 kHz |
| Leakage Inductance | 0.40 mH |
| Dielectric Strength | 100 Vrms |
| Frequency Range @ +10 DBm | 200 Hz to 100 kHz +/- 0.5 dB |
| Frequency Range @ +15 DBm | 200 Hz to 100 kHz +/- 0.5 dB |
| Frequency Range @ +20 DBm | 300 Hz to 100 kHz +/- 0.5 dB |
| Input Impedance (Drawing) | 600 ohms CT |
| Primary Nominal Impedance | 600 CT ohms |
| Output Impedance (Drawing) | 600 ohms CT |
| Primary Nominal Resistance | 44 ohms |
| Secondary Nominal Impedance | 600 CT ohms |
| Secondary Nominal Resistance | 52 ohms |
| Frequency Measurement Condition | No D.C. current saturation |
| Power Level / Minimum Frequency Range | 300 Hz to 100 kHz +/- 0.5 dB @ 100 mW |
| Primary Inductance (1.0 KHz, 1.0 V OC) | 288 mH |
| Secondary Inductance (1.0 KHz, 1.0 V OC) | 288 mH |
| Useful Impedance Range (Pri/Sec To Pri/Sec) | 300/300 to 1200/1200 ohms |
| UPC | 623980177908 |
| UNSPSC | 39121301 |
| Shipping Weight | 0.01 lbs (0.00 kg) |
| Size | Miniature |
| Potting | Rugged black epoxy potted construction |
| Mounting | P.C. board mount, pin type |
| Construction | Rugged potted construction; completely sealed unit withstanding severe environmental conditions |
| Epoxy Workable Temperature Range | -40 to +105 degrees C under a normal rate of change; does not include thermal shock |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
1:1, with 600 ohm center-tapped primary and secondary windings.
-40 to 85 degrees C operating and -40 to 105 degrees C storage.
The drawing gives +/-0.5 dB from 200 Hz to 100 kHz, with 0.100 W output power.
Pins 4 and 5 have no connection.
Yes. It is black epoxy potted, producing a completely sealed unit.
Hammond Manufacturing · 101D
Hammond Manufacturing · 101H
Hammond Manufacturing · 101J
Hammond Manufacturing · 101P
Hammond Manufacturing · 101R
