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Product Detailed Parameters
- Description：XFRMR 1CT:2.42CT/1CT:2.42CT SMD
- Series：-
- Mfr：Pulse Electronics
- Package：Tube
- Transformer Type：T1/E1 (Dual)
- Inductance：1.2mH, 1.2mH
- ET (Volt-Time)：-
- Turns Ratio - Primary:Secondary：1CT:2.42CT, 1CT:2.42CT
- Mounting Type：Surface Mount
- Size / Dimension：0.505" L x 0.280" W (12.83mm x 7.11mm)
- Height - Seated (Max)：0.245" (6.22mm)
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
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Overview
The TX1287NL is a dual-channel surface mount pulse transformer manufactured by Pulse Electronics, designed for T1, CEPT, and ISDN-PRI applications. It features an inductance of 1200 uH with a DC resistance of 0.7 Ohms. The component utilizes a gull-wing SMD package with 16 terminals and measures 12.83 mm in length. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Dual-channel configuration supporting T1/CEPT/ISDN-PRI standards
- Surface mount construction with gull-wing termination style
- High inductance value of 1200 uH for signal integrity
Applications
- T1 line interface circuits
- CEPT digital transmission systems
- ISDN Primary Rate Interface (PRI) equipment
Procurement Notes
Verify the specific datasheet version from Pulse Electronics or authorized distributors to confirm pinout compatibility and mechanical dimensions. Ensure the gull-wing package matches the PCB footprint requirements. Check for RoHS compliance status if required by project specifications. Confirm operating temperature range suitability for the intended environment.
Selection Notes
Select this component when designing T1, CEPT, or ISDN-PRI interfaces requiring a dual-channel surface mount solution. The 1200 uH inductance and low DC resistance support standard signaling requirements. Consider the 16-terminal gull-wing package for automated assembly processes. Validate thermal performance within the specified -40°C to +85°C range.
Part Context
This part belongs to the family of audio and signal transformers produced by Pulse Electronics, a Technitrol Company. These components are specialized for telecommunications applications, providing isolation and impedance matching for digital voice and data transmission lines. The TX series typically addresses high-reliability requirements in network infrastructure.
Replacement Considerations
Consult official Pulse Electronics documentation for verified substitute part numbers. Cross-reference electrical parameters such as inductance, DC resistance, and channel configuration. Verify mechanical footprint compatibility before substitution.
