VISHAY SEMICONDUCTOR TFDU4202 User Guide (1) Owner's Manual
Summary
This miniaturized, low-profile infrared transceiver module is an ideal component for reliable telecommunications applications, including mobile phones, pagers, and handheld devices. Compatible with the latest IrDA standard up to 115 kbit/s, it features a split power supply, ultra-low power consumption, and stable operation down to 2.0V. The technical manual provides comprehensive specifications for developers, covering operational parameters, electrical characteristics, and integration details necessary for designing compact, high-performance infrared communication systems.
Page 1 Text Content
TFDU4202 Vishay Semiconductors
Integrated Low Profile Transceiver Module for Telecom Applications - Ir DA Standard
Description The miniaturized TFDU4202 is an ideal transceiver for applications in telecommunications like mobile phones and pagers. The device is mechanically designed for lowest profile with a height of only 2.8 mm. The infrared transceiver is compatible to the latest Ir DA® Ir PHY specification up to a data rate of kbit/s. At lower operating voltages up to 3.3 V the transceiver can be operated without external current limiting resistor to achieve a range > 1 m. The added feature is a split power supply for IRED driver (Vccp) and ASIC (Vccp). For operating only in the limited distance, low power range (20 cm/ 30 cm), TFDU4201 with built-in current control is recommended. For this device see the appropriate data sheet.
Features
Package dimension micro Face Operational down to 2.0 V
TFDU4202: Fewest external components L 7.1 mm x W 4.7 mm x H 2.8 mm
Eye safety: Double safety
Compatible to latest Ir DA Ir PHY standard e3
Measures: CIR Remote Control operation: Limited optical output oulse duration Typical transmission range 8 m using standard Limited optical output intensity RC-receivers. Receives RC-commands with IEC60825-1, 2001: Class 1
typical specified sensitivity. Push-pull output (RXD) SMD Side View High EMI immunity Lowest power consumption 65 µA, receive mode, Split power supply, transmitter and receiver can be 0.01 µA Shutdown operated from two power supplies with relaxed
Built-in current limitation requirements saving costs, US Patent No. Output intensity adjustable by external resistor 6,157,476 Wide supply voltage range (2.4 V to 5.5 V) Lead (Pb)-free device Split power supply Device in accordance to Ro HS 2002/95/EC and WEEE 2002/96/EC
Applications • Mobile Phones • Pagers • Personal Digital Assistants (PDA) • Handheld Battery Operated Equipment
Parts Table
Part Description Qty / Reel
TFDU4202-TR1 Orientated in carrier tape for side view in mounting 750 pcs
TFDU4202-TR3 Orientated in carrier tape for side view in mounting 2250 pcs
Document Number 82541 www.vishay.com Rev. 1.8, 05-Dec-05
Page Summary Contents For VISHAY SEMICONDUCTOR TFDU4202 User Guide (1) Owner's Manual
Manual Details
| Brand | Vishay |
|---|---|
| Pages | 13 |
| File Size | 197.82 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What is the maximum data rate supported by this transceiver?
It supports a data rate up to 115 kbit/s, compatible with the latest IrDA IrPHY standard.
Is external adjustment needed for transmission intensity?
Yes, the output intensity can be adjusted using an external resistor.
What are the key operational features of the TFDU4202?
It includes a split power supply and built-in current limitation to save on external components.
What is the safety rating for optical viewing?
The device complies with Class 1 operation according to IEC 60825 or EN60825 standards.