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Audio / Telephony -
Voice and Data or Voice Only
*Click Here to see a full list of Telephony Transformers
| Product Name | Impedance | Turns Ratio |
Frequency Response |
Max D.C.R. |
Dielectric Strength |
|---|---|---|---|---|---|
| SPT-010-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.0428 | 300-3500 Hz : ± 0.5 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-011-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.100 | 300-3500 Hz : ± 0.25 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-013-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± .25 dB | 0 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-015-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± .25 dB | 0 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-016 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± .25 dB | 0 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-022 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± .25 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-023 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± .25 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-024 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.20 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-032 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.20 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-034 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.20 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-040 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-041 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-042 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-043 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-044 |
Primary: 600 Split Secondary: Split |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-046 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-047 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-048 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-049 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-050 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 200-4000 Hz : ± 0.3 dB | 0 mA | 1500 Vrms for 1 minute (minimum) |
| SPT-101-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 90 mA | 1500 Vrms (primary-secondary-core) |
| SPT-109-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-110-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.127 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-111-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:0.8168 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-112-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:0.942 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-113-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 50 mA | 1500 Vrms (primary-secondary-core) |
| SPT-115-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.55 dB | 60 mA | 1500 Vrms (primary-secondary-core) |
| SPT-116-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-117-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.125 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-118-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:0.8163 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-119-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:0.946 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-123-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 90 mA | 1500 Vrms (primary-secondary-core) |
| SPT-124-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-125-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 90 mA | 1500 Vrms (primary-secondary-core) |
| SPT-126-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 2400 VDC (primary-secondary-core) |
| SPT-127-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 120 mA | 2400 VDC (primary-secondary-core) |
| SPT-128-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-131-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-172 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 50 mA | 1500 Vrms (primary-secondary-core) |
| SPT-184-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 120 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-185-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.1036 | 300-3500 Hz : ± 0.5 dB | 120 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-186-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.6 dB | 70 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-187-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.08 | 300-3500 Hz : ± 0.5 dB | 70 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-188-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 70 mA | 1500 Vrms (primary-secondary-core) |
| SPT-189-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 60 mA | 1500 Vrms (primary-secondary-core) |
| SPT-190-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-191-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.127 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-192-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:0.8168 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-193-UL |
Primary: 900 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-194-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.127 | 300-3500 Hz : ± 0.5 dB | 90 mA | 1500 Vrms (primary-secondary-core) |
| SPT-195-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:0.8163 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-196-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 50 mA | 1500 Vrms (primary-secondary-core) |
| SPT-197-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.55 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-198-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 120 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-199-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.1036 | 300-3500 Hz : ± 1.0 dB | 120 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-1104-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.028 | 300-3500 Hz : ± 0.5 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-1105-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.045 | 300-3500 Hz : ± 1.0 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-1106-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 70 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-1107-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.08 | 300-3500 Hz : ± 1.0 dB | 70 mA | 2200 VDC (primary-core-screen/secondary) |
| SPT-1108-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 120 mA | 3750 VDC (primary-secondary-core) |
| SPT-110-950 |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.193 | 300-3500 Hz : ± 0.5 dB | 80 mA | 1500 Vrms (primary-secondary-core) |
| SPT-1109-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 120 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-1110-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 3750 VDC (primary-secondary-core) |
| SPT-1111-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 80 mA | 3750 VDC (primary-secondary-core) |
| SPT-1112-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 80 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-1113-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 80 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-1114-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 0.5 dB | 120 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-1115-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1 | 300-3500 Hz : ± 1.0 dB | 120 mA | 3750 Vrms for 1 minute (minimum) |
| SPT-2104-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.037 | 300-3500 Hz : ± 0.5 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
| SPT-2106-UL |
Primary: 600 Ohms Secondary: 600 Ohms |
1:1.052 | 300-3500 Hz : ± 0.25 dB | 0 mA | 1500 Vrms (primary-secondary-core) |
