Systems, Subsystems & Solutions

4736 Series Common Mode Inductor

4736 is a Common Mode Inductor for Switch Mode Power Supplies.

Features: 
  • Inductance range: 0.33 to 82 mH
  • Rated current range: 6 to 0.4 Amp
  • Split bobbins for increased dielectric strength (4000 V RMS)
  • CSA listed (LR 47366) and U.L. recognized (E100878)
  • Built to UL Class B Insulation System (E100878)

Transformers

API offers a wide variety of transformers to meet any need.  Our signal transformers consist of audio frequency, coupling, impedance matching, line matching, line isolating and hybrid transformers for central office or mobile equipment applications in surface mount or through hole formats.

We also have an extensive assortment of pulse transformers, also in SMD or TH formats, for a wide variety applications : T1/E1 and ISDN applications, as well as T3/E3 and xDSL.  API has been approved as a source for CEPT/CCiTT, S-Bus and U-Bus transformers and for specific interface ICs for Zarlink (Mitel).

4731 - 4734 Series Power Transformer

VERTICAL PCB SERIES Power Transformers for printed circuit mounting. Four sizes: 1.2 VA, 4.4 VA, 10 VA and 24VA ratings.

Features: 
  • Split bobbins for increased dielectric strength (1500 V RMS)
  • 115/230 volts, 60/50 Hz primary windings
  • CSA listed (LR 47366) and U.L. recognized (E100878)

4721 - 4726 Series Power Transformer

HORIZONTAL SERIES Power Transformers for printed circuit mounting. Six sizes: 1.1VA, 2.4VA, 6VA, 12VA, 20VA & 36VA ratings.

Features: 
  • Split  bobbins for increased dielectric strength (4000V RMS)
  • 115/230 volts, 47/63 Hz primary windings
  • CSA listed (LR 47366) and U.L. recognized (E100878)

4711 - 4716 Series Power Transformer

INTERNATIONAL SERIES Power Transformers for printed circuit mounting. Six sizes: 2.5, 5, 10, 20, 30, 56 VA ratings. Dual bobbins for increased dielectric strength (4000V RMS).

Features: 
  • 115/230 volts, 47/63 Hz primary windings
  • CSA listed (LR 47366) and U.L. recognized (E100878)
  • Exceeds VDE, BSI and IEC requirements

4701 - 4705 Series Low Profile Power Transformer

LOW PROFILE Transformer for printed circuit mounting. Five sizes: 2, 6, 12, 24 and 48 VA ratings.

Features: 
  • Split bobbins for increased dielectric strength and low capacitive coupling
  • 115/230 volts, 47/63 Hz primary windings
  • CSA listed (LR 47366) and U.L. recognized (E100878)

TPW-4671 Series Input/Output Transformer

The TPW-4671 transformer is designed to interface with the subscribers premises (NT) and the 2- wire line side of the Central Office Equipment (LT) in the ISDN Network.

Features: 
  • Meets the electrical specifications of ANSI TI.601-1988
  • Approved for the Mitel MT8910 DSLIC strong device.

TPW-4670 Series Input/Output Transformer

The TPW-4670 transformer is designed to interface with the subscribers premises (NT) and the 2- wire line side of the Central Office Equipment (LT) in the ISDN Network.

Features: 
  • Meets the electrical specifications of ANSI TI.601- 1988
  • Approved for the Siemens PEB2091 device.
  • TPW-4670-1 meets the requirements of the Thomson SD5411 device.

CTS-4669 Series Common Mode Inductor

CTS-4669 is a 4-winding common mode choke, specifically designed to suppress EMI on the 4-wire S-Bus in the ISDN system.

Features: 
  • Windings are extremely well balanced
  • Maintains High Longitudinal Balance required in the system
  • CCITT recommendation I.430

TEW-4610 Series Input/Output Transformer

The 4 wire interface between Subscriber Terminals and The Network Temination has been standardised by CCITT recommendation I.430. The TEW4610 has been approved for use with the INTEL S-bus interface device S29C53.

Features: 
  • Uses a passive bus
  • Provides separate receive and transmit loops
  • Operating at 192 Kbits/s
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