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| PartNumber | T1137NL | T1137NLST | T1137NLT |
| Description | Audio Transformers / Signal Transformers SMD T1/CEPT/ISDN-Pri 1200uH .7Ohm 2-Port | TRANSFORMER | Audio & Signal Transformers Transformers Audio & Signal XFMR QUAD |
| Manufacturer | Pulse | PULSE | Pulse Electronics Corporation |
| Product Category | Audio Transformers / Signal Transformers | IC Chips | Pulse Transformers |
| RoHS | Y | - | - |
| Product | Telecom | - | LAN |
| Type | Module | - | Module |
| Termination Style | SMD/SMT | - | - |
| Frequency Range | 1 MHz to 100 MHz | - | - |
| Inductance | 600 nH | - | 1.2mH, 1.2mH |
| Isolation Voltage | 1.5 kV | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Number of Channels | 2 Channel | - | Dual |
| Application | T1/CEPT/ISDN-Pri | - | T1/CEPT/ISDN-Pri |
| Length | 12.83 mm | - | - |
| Width | 7.11 mm | - | - |
| Height | 6.22 mm | - | - |
| Packaging | Tube | - | Tape & Reel (TR) Alternate Packaging |
| Maximum DC Resistance | 700 mOhms | - | - |
| Shielding | Unshielded | - | - |
| Brand | Pulse Electronics | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Audio & Signal Transformers | - | - |
| Factory Pack Quantity | 40 | - | - |
| Subcategory | Transformers | - | - |
| Series | - | - | * |
| Qualification | - | - | Commercial |
| Mounting Type | - | - | Surface Mount |
| Size Dimension | - | - | 12.83mm L x 7.11mm W |
| Height Seated Max | - | - | 6.22mm |
| Transformer Type | - | - | T1/E1 (Dual) |
| Turns Ratio PrimarySecondary | - | - | 1CT : 2.42CT, 1CT : 2.42CT |
| E T | - | - | - |