Transformer meets safety and telecom standards.

Press Release Summary:

Compliant to RoHS standards, Sealed Line Matching Transformer, Model LM302-1L is compatible with modem circuitry that meets V.32, V.32 bis, and V.34 industry requirements. It provides isolation between sensitive electronics and offers dielectric strength to 6,500 Vdc. Circuit specifications include 600 Ω impedance, 1:1 turns ratio, and 1.5 db max insertion loss at 2 kHz. Through-hole unit comes in 0.706 in. square package with seated height of 0.422 in.

Original Press Release:

New Low Profile Sealed Line Matching Transformers

Designers of devices or equipment with telecom interfaces will find the new LM302-1L Line Matching Transformer from Datatronics meets both rigorous safety and telecom industry standards while combining high performance coupling characteristics with a high dielectric strength in an economical low profile package compliant to RoHS standards.

The Model LM302-1L is compatible with all major standard modem circuitry that meets V.32, V.32 bis and V.34 industry requirements. It is suitable for a wide range of voice and data applications telecom equipment, instrumentation, portable devices, office equipment, security systems and more.

The Model LM302-1L provides space-efficient isolation between sensitive electronics and telephone lines. With a dielectric strength tested to 6500 VDC, it meets various international safety standards including UL60950 and BABT. This device's high dielectric strength safeguards equipment users by protecting them from electrical shock.

Developed for high performance, the LM302-1L is a symmetrical design meaning that there is no real primary or secondary winding. Key circuit specifications include: impedance at 600 ohms (both primary/secondary), turns ratio is 1:1 and insertion loss at 2Khz is 1.5 db max

A though-hole device, the LM302-1L comes in a 0.706 (17.9 mm) square package. It features a seated height on only 0.422 inches (10.7 mm), which makes it useful in many high density designs.

With its vacuum encapsulated package, the sealed LM302-1L withstands high temperature soldering and operating temperature environments from -20ºC to +85ºC and a storage range of -40ºC to +85ºC. It is available in tape-and-reel or tube packaging for auto insertion equipment.

In 10,000 piece quantity, the LM302-1L is available beginning at $0.89 each. Lead-time is stock to six weeks. Volume OEM pricing is available upon request.

For more information, contact Datatronic Distribution Inc., 28151 Highway 74, Romoland, CA 92585, or telephone toll free 1-888-889-5391 or 951-928-7700 or fax 951-928-7701. Visit us at or email us at

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