TRF4903PW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TRF4903PW is a Texas Instruments RF transmitter IC covering the 315 MHz to 915 MHz ISM band, designed for short-range wireless communication in a 24-pin TSSOP package. It supports OOK and FSK modulation with output power up to 10 dBm and operating voltage from 2.1 V to 3.6 V. From $2.80 in stock with worldwide shipping available.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- TRF4903PW Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TRF4903PW?
- Wide ISM band coverage from 315 MHz to 915 MHz enabling multi-regional deployments
- Supports OOK and FSK modulation with up to 10 dBm output power for reliable short-range links
- Ultra-low power operation from 2.1 V to 3.6 V supply with power-down mode for battery-powered devices
What is TRF4903PW used for?
TRF4903PW is designed for short-range wireless applications in home automation, remote keyless entry, security systems, and industrial sensor networks operating in the 315 MHz to 915 MHz ISM bands. It enables sub-GHz transmitter designs with minimal external components, simplifying PCB layout for compact devices. The device is also used in smart metering, garage door openers, and wireless alarm systems requiring reliable one-way data links.
What are the specifications of TRF4903PW?
| Pbfree Code | No |
| YTEOL | 0 |
| JESD-30 Code | R-PDSO-G24 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP24,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.042mA |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Telecom IC Type | RF AND BASEBAND CIRCUIT |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.01 |
Where can I find the TRF4903PW datasheet?
TRF4903PW Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TRF4903PW?
Compatible alternatives and drop-in replacements for TRF4903PW:
Frequently Asked Questions
What frequency bands does the TRF4903PW RF transmitter cover and what modulation schemes does it support?
The TRF4903PW covers the ISM frequency bands from 315 MHz to 915 MHz, making it compatible with North American 315 MHz and 433 MHz/915 MHz European and global ISM allocations. It supports OOK (On-Off Keying) and FSK (Frequency Shift Keying) modulation schemes with programmable data rates. The flexible frequency range enables a single PCB design to serve multiple regional market variants.
What is the supply voltage range and output power specification of the TRF4903PW?
The TRF4903PW operates from a supply voltage of 2.1 V to 3.6 V, making it compatible with standard 3.3 V systems and lithium coin-cell battery-powered designs. The device delivers up to 10 dBm RF output power into a 50-ohm load, providing sufficient link budget for typical short-range applications up to 100 meters line-of-sight. The low supply voltage enables direct integration with 3.3 V microcontrollers without level shifting.
What package does TRF4903PW use and how many external components are required for a basic transmitter design?
The TRF4903PW is housed in a 24-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, occupying a compact footprint suitable for space-constrained wireless sensor nodes. A typical transmitter circuit requires fewer than 10 external passive components including the crystal, matching network, and decoupling capacitors. This minimal component count reduces BOM cost and simplifies PCB layout for high-volume consumer applications.
In which wireless applications does the TRF4903PW deliver the best cost-performance trade-off compared to integrated SoC solutions?
TRF4903PW provides the best cost-performance trade-off in one-way transmitter-only applications such as remote controls, alarm sensors, and wireless door bells where a full transceiver SoC would be oversized. At 315 MHz to 915 MHz with 10 dBm output power, the device covers most short-range regulatory requirements without expensive RF certification testing for custom power amplifier stages. For battery-powered transmit-only nodes requiring sub-1 GHz operation, the TRF4903PW lowers system cost compared to dual-mode integrated SoC alternatives.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit