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1.5KVrms Isolation T1 Interface SMT Telecom Transformer
Includes IC side protection circuit on each channel to suppress low voltage transients.
Compatible with PMC-Sierra's Comet chip (PM4354).
Models matched to Leading Quad And Dual T1/E1/Cept/Isdn-Pri transceivers.
Isolation voltage:1500Vrms.
Recognized by UL 1950.
Test Conditions
OCL ---- 100KHZ/100mV.
LL------- 100KHZ/100mV.
Cww --- 100KHZ/100mV.
| Part Number | Turns Ratio (Pri:Sec±2%) | OCL @25℃ (mH min.) | LL (uH MAX) | ||||
|---|---|---|---|---|---|---|---|
| STD Temp. | EXT Temp. | Transmit | Receive | Transmit | Receive | Transmit | Receive |
| 58T(B)-1221ANL | 58T(B)-1221ACNL | 1 : 1.36 | 1:1.36CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1222ANL | 58T(B)-1222ACNL | 1 : 1.14 | 1 : 1.14CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1221CNL | 58T(B)-1221CCNL | 1 : 2CT | 1 : 2CT | 1.2 | 1.2 | 0.8 | 0.8 |
| 58T(B)-1221DNL | 58T(B)-1221DCNL | 1 : 2 | 1 : 2CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1222CNL | 58T(B)-1222CCNL | 1 : 1.36CT | 1 : 2CT | 1.2 | 1.2 | 0.6 | 0.6 |
| Part Number | Cww (pF MAX) | Package Schematic | Primary Pins | |||
|---|---|---|---|---|---|---|
| STD Temp. | EXT Temp. | Transmit | Receive | Transmit | Receive | |
| 58T(B)-1221ANL | 58T(B)-1221ACNL | 35 | 35 | A | 1-2, 6-7, 11-12, 16-17 | 38-36, 33-31, 28-26, 23-21 |
| 58T(B)-1222ANL | 58T(B)-1222ACNL | 35 | 35 | A | 1-2, 6-7, 11-12, 16-17 | 38-36, 33-31, 28-26, 23-21 |
| 58T(B)-1221CNL | 58T(B)-1221CCNL | 35 | 35 | C | 4-5, 9-10, 14-15, 19-20 | 24-25, 29-30, 34-35, 39-40 |
| 58T(B)-1221DNL | 58T(B)-1221DCNL | 35 | 35 | D | 1-2, 9-10, 11-12, 19-20 | 23-25, 26-28, 33-35, 36-38 |
| 58T(B)-1222CNL | 58T(B)-1222CCNL | 35 | 35 | C | 24-25, 29-30, 34-35, 39-40 | 4-5, 9-10, 14-15, 19-20 |
Files Download 
58T-58TB Series.pdf
Certification
1.5KVrms Isolation T1 Interface SMT Telecom Transformer
Includes IC side protection circuit on each channel to suppress low voltage transients.
Compatible with PMC-Sierra's Comet chip (PM4354).
Models matched to Leading Quad And Dual T1/E1/Cept/Isdn-Pri transceivers.
Isolation voltage:1500Vrms.
Recognized by UL 1950.
Test Conditions
OCL ---- 100KHZ/100mV.
LL------- 100KHZ/100mV.
Cww --- 100KHZ/100mV.
| Part Number | Turns Ratio (Pri:Sec±2%) | OCL @25℃ (mH min.) | LL (uH MAX) | ||||
|---|---|---|---|---|---|---|---|
| STD Temp. | EXT Temp. | Transmit | Receive | Transmit | Receive | Transmit | Receive |
| 58T(B)-1221ANL | 58T(B)-1221ACNL | 1 : 1.36 | 1:1.36CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1222ANL | 58T(B)-1222ACNL | 1 : 1.14 | 1 : 1.14CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1221CNL | 58T(B)-1221CCNL | 1 : 2CT | 1 : 2CT | 1.2 | 1.2 | 0.8 | 0.8 |
| 58T(B)-1221DNL | 58T(B)-1221DCNL | 1 : 2 | 1 : 2CT | 1.2 | 1.2 | 0.6 | 0.6 |
| 58T(B)-1222CNL | 58T(B)-1222CCNL | 1 : 1.36CT | 1 : 2CT | 1.2 | 1.2 | 0.6 | 0.6 |
| Part Number | Cww (pF MAX) | Package Schematic | Primary Pins | |||
|---|---|---|---|---|---|---|
| STD Temp. | EXT Temp. | Transmit | Receive | Transmit | Receive | |
| 58T(B)-1221ANL | 58T(B)-1221ACNL | 35 | 35 | A | 1-2, 6-7, 11-12, 16-17 | 38-36, 33-31, 28-26, 23-21 |
| 58T(B)-1222ANL | 58T(B)-1222ACNL | 35 | 35 | A | 1-2, 6-7, 11-12, 16-17 | 38-36, 33-31, 28-26, 23-21 |
| 58T(B)-1221CNL | 58T(B)-1221CCNL | 35 | 35 | C | 4-5, 9-10, 14-15, 19-20 | 24-25, 29-30, 34-35, 39-40 |
| 58T(B)-1221DNL | 58T(B)-1221DCNL | 35 | 35 | D | 1-2, 9-10, 11-12, 19-20 | 23-25, 26-28, 33-35, 36-38 |
| 58T(B)-1222CNL | 58T(B)-1222CCNL | 35 | 35 | C | 24-25, 29-30, 34-35, 39-40 | 4-5, 9-10, 14-15, 19-20 |
Files Download 
58T-58TB Series.pdf
Certification
