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2-Port T1/CEPT/ISDN-PRI Magnetic Transformer | 1.5KV Isolated | 12-Pin SMD Surface Mount For industrial control and telecom equipment
SMD dual telecom transformer has 1.5KVrms Isolation and T1/CEPT Interface. 55TB & 57TB series have dual SMT package contains both transmit and receive transformers. The models matched to Leading tansceiver Ics. Both series have been recognized by UL 1950.
Designed for modern computer equipment and industrial control systems, our surface mount telecom transformer series provides exceptional stability for networking devices. As a professional telecom magnetics manufacturer, we deliver High reliability SMD telecom transformer solutions, including dual port telecom transformer and SMD ISDN transformer configurations. These units function as a precise network interface transformer or telecom line isolation transformer, supporting T1 interface transformer, CEPT interface transformer, and ISDN PRI interface transformer requirements. Integrate our telecom line transformer and telecom isolation transformer to ensure superior signal integrity in any telecommunications environment.
Yuan Dean can provide high efficiency production solutions and customized products.
Any OEM/ ODM requirement is welcome. We look forward to cooperating with you!
| Quantity: | |
|---|---|
| Part Number | Turns Ratio (± 5%) | OCL @25°C (mH min.) | LL (uH max.) | CW/W (pf max.) | DCR Pri. (Ω max.) | DCR Sec. (Ω max.) | Primary Pins |
|---|---|---|---|---|---|---|---|
| EXTENDED TEMPERATURE RANGE MODELS-OPERATING TEMPERATURE 0℃TO+70℃ | |||||||
| 55TB-1221BNL | 1CT:2CT&1CT:2CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 1.00&1.00 | 1.70&1.70 | 12-10,4-6 |
| 55TB-1621ANL | 1CT:2CT&1:1.36CT | 1.60&1.60 | 1.00&0.80 | 60&55 | 1.70&1.0 | 2.00&1.70 | 12-10,4-6 |
| 55TB-1261DNL | 1:1.15CT&1CT:2CT | 1.60&1.60 | 0.80&0.80 | 60&50 | 1.00&1.00 | 1.00&2.00 | 12-10,4-6 |
| 55TB-1221ENL | 1:1/1.26&1:2 CT | 1.20&1.20 | 0.80&0.80 | 50&60 | 1.00&1.00 | 1.10&1.70 | 12-10,4-6 |
| 55TB-1621FNL | 1:2 CT &2:1 | 1.60&1.60 | 1.30&1.30 | 55&40 | 1.10&1.10 | 1.10*0.70 | 1-3,4-6 |
| 55TB-1222BNL | 1CT:1CT &1CT:1CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 1.00&1.00 | 1.00&1.00 | 1-3,4-6 |
| 55TB-1223BNL | 1CT:1.15CT &1CT:1.15CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 1.20&1.20 | 1.40&1.40 | 1-3,4-6 |
| 55TB-1224BNL | 1CT:1CT &1CT:2CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 1.00&1.00 | 1.00&1.80 | 1-3,4-6 |
| 55TB-1625BNL | 1CT:1.15CT &1CT:1CT | 1.60&1.60 | 0.80&0.80 | 60&60 | 1.20&1.20 | 1.40&1.20 | 12-10,4-6 |
| 55TB-1226BNL | 1CT:1.36CT &1CT:1.36CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 1.20&1.20 | 1.40&1.40 | 1-3,4-6 |
| 55TB-1227BNL | 1CT:1.41CT &1 CT:1.41CT | 1.20&1.20 | 0.80&0.80 | 50&50 | 0.90&0.90 | 1.20&1.20 | 12-10,9-7 |
| 55TB-1228BNL | 1CT:2.3CT&1CT:2CT | 1.20&1.20 | 0.80&0.80 | 60*50 | 1.20&1.20 | 2.10&2.10 | 10-12,4-6 |
| STANDARD TEMPERATURE RANGE MODELS-OPERATING TEMPERATURE 0℃TO+70℃ | |||||||
| 57TB-1221BNL | 1CT:2CT&1CT:2CT | 1.20&1.20 | 0.60&0.60 | 35&35 | 0.70&0.70 | 1.20&1.20 | 12-10,4-6 |
| 57TB-1221ANL | 1CT:2CT&1:1.36CT | 1.20&1.20 | 0.60&0.60 | 35&37 | 0.70&0.70 | 1.20&0.90 | 12-10,4-6 |
| 57TB-1221ENL | 1:2CT&1:1.14CT | 1.20&1.20 | 0.55&0.80 | 40&35 | 0.70&0.70 | 1.20&0.90 | 12-10,4-6 |
| 57TB-1221CNL | 1CT:2CT&1:1 | 1.20&1.20 | 0.30-0.55&0.80 | 30&30 | 0.70&0.70 | 1.20&0.70 | 1-3,5-6 |
| 57TB-1521DNL | 1:1.15CT&1CT:2CT | 1.50&1.20 | 0.80&0.60 | 35&35 | 0.70&0.70 | 0.90&1.20 | 12-10,4-6 |
| 57TB-1522ENL | 1:1/1.26&1:2CT | 1.50&1.20 | 0.40&0.50 | 40&40 | 0.70&0.70 | 0.90&1.20 | 12-10,4-6 |
| 57TB-1222ANL | 1CT:2CT&1:1.08CT | 1.20&1.20 | 0.60&0.60 | 40&30 | 0.70&0.70 | 1.10&0.90 | 12-10,4-6 |
| 57TB-1521GNL | 1:1/1.26&1:1/1.26 | 1.50&1.50 | 0.40&0.40 | 45&45 | 0.80&0.80 | 1.00&1.00 | 12-10,9-7 |
