ISDN-PRI Transformers Pulse Dual Surface Mount

Category: Electronics, Pulse Electronics Corporation, Transformers

The TL/Cept/ISDN-PRI Transformers Pulse Dual Surface Mount datasheet provides detailed information on a range of transformers designed for telecommunications interfaces. These dual surface mount transformers are specifically tailored to match leading transceiver integrated circuits (ICs). The products listed within this datasheet are RoHS compliant and are suitable for applications requiring high isolation voltage of 1500 Vrms.

Key Features

These transformers offer several key features:

Integrated transmit and receive transformers in a dual surface mount (SMT) package.
Isolation voltage rated at 1500 Vrms.
Compliance with ROHS and peak reflow temperature rating of 245°C.
UL recognized components ensuring safety and reliability.

Electrical Specifications and Models

The datasheet details the electrical specifications at 25°C which include the turns ratio, open circuit inductance (OCL), parallel resistances (DCR) for primary and secondary windings, and capacitance between windings. Both the extended and standard temperature range models are covered:

Extended Temperature Range Models: Operating between -40°C to +85°C.
Standard Temperature Range Models: Operating between 0°C to +70°C.

Part Numbers and Schematics

Each transformer type is provided with a primary part number for identification, along with detailed schematics that depict the pin configurations and the respective connections. The datasheet lists multiple transformer part numbers such as PE-68841NL, PE-68822NL, PE-68826NL, PE-68828NL, PE-68874NL, PE-68877NL, and PE-68884NL among others, indicating a range of options to fit various application requirements.

Mechanical Data and Ordering Information

Significant mechanical details such as weight, dimensions of the transformer, and grid size for the SMT pads are provided to assist in integration into various designs. The suggested pad layout specification ensures proper alignment and mounting onto a printed circuit board (PCB). Weight for each transformer is indicated as 4.0 grams with packaging options for tape and reel (250 per reel) or tube (30 per tube). To order tape and reel packaging, a suffix “T” is added to the part number (for example, PE-68864NL becomes PE-68864NLT).

Contact and Additional Information

Contact information for Pulse Electronics’ global network including USA, Germany, Singapore, Shanghai, China, and Taiwan is provided, enabling product support and procurement across different geographic locations. Customers are directed towards the Pulse Electronics website for more information. Furthermore, the datasheet notes that specific details regarding Tape & Reel packaging can be found on pages 7 and 8 of the datasheet.