LQP03T Datasheet PDF – Inductor RF Chip Thin Film

Part Number: LQP03TN0N6B02

Function: HF Chip Coils Cover Wide Inductance Range

Package: SMD 0603 Type

Manufacturer: Murata Manufacturing

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LQP03T datasheet

Description

The LQP03T series is an ultra-miniature RF chip inductor developed by Murata, utilizing thin-film technology to achieve exceptional high-frequency performance in a compact 0603 (0.6 × 0.3 mm) package. It is specifically engineered for RF circuits in space-constrained applications such as mobile devices, where high Q factor, tight tolerance, and stable characteristics are critical.

The past few years have seen the growing popularity of compact, slim mobile phones. High-end handset models, which are usually multi-functional, come with highquality picture LCD panels and camera modules. This has led manufacturers to scale down the sizes of the radio frequency (RF) block, and modules including power amplifier and voltage-controlled oscillator (VCO).

Consequently, the sizes of the high-frequency inductors used in mobile phones and modules also need to be scaled down to miniature levels. To meet this demand for ultra-small high-frequency inductors, Murata Manufacturing Co., Ltd. is mass-producing and supplying the LQP03T film-type 0603-sized (0.6 ×0.3mm) high-frequency chip

Features

  • Ultra-small size
  • Thin-film construction for precise inductance control
  • High Q factor for efficient RF performance
  • Excellent high-frequency characteristics
  • Tight inductance tolerance
  • Low DC resistance (DCR)
  • Stable performance across frequency and temperature
  • Suitable for automated high-density PCB assembly

Technology Insight

  • Built using Murata’s proprietary thin-film and micro-fabrication technology
  • Provides superior dimensional accuracy compared to wire-wound inductors
  • Enables consistent RF characteristics across production batches
  • Optimized for GHz-range operation where parasitics dominate performance

Design Notes

  • Ideal for impedance matching networks in RF front-end circuits
  • High SRF allows usage in GHz frequency bands (Bluetooth, Wi-Fi, LTE)
  • Placement and PCB layout are critical—minimize parasitic capacitance and coupling
  • Avoid proximity to ground planes or high-current traces that may degrade Q factor
  • Select inductance value based on matching network or resonance requirements

Advantages vs Conventional Inductors

  • Smaller footprint than wire-wound inductors
  • Better high-frequency performance
  • Lower variation in inductance and Q
  • Higher integration capability in dense RF modules

Alternative / Equivalent Products

  • LQG03 series – Multilayer RF chip inductors (Murata)
  • LQP02 series – Even smaller 0402 thin-film inductors
  • HK1005 series – TDK high-frequency inductors
  • 0402CS series – Coilcraft RF chip inductors
  • GLFR series – Taiyo Yuden RF inductors

Typical Applications

  • RF matching circuits (antenna, PA, LNA)
  • Voltage Controlled Oscillators (VCO)
  • RF filters and tuning circuits
  • Mobile phones and wearable devices
  • Wireless communication modules (Wi-Fi, Bluetooth, GPS)
  • High-frequency signal routing in compact electronics

Other data sheets are available within the file:

LQP03TN2N2B02D, LQP03TN5N6, LQP03TN5N6H,

LQP03TN2N4CZ2D, LQP03TN5N6J, LQP03TN6N8

 

LQP03T Datasheet PDF Download


LQP03T pdf

74ACT541 Datasheet – Octal Buffer/Line Driver ( PDF )

74ACT541 is an octal buffer/line driver with 3-state outputs, designed for high-speed bus-oriented applications such as memory addressing, clock distribution, and microprocessor interfacing.

Function: Octal Buffer/Line Driver with 3-STATE Outputs

Package: DIP, SOP, SOIC 20 Pin Type

Manufacturer: Fairchild Semiconductor

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74ACT541 datasheet pdf

Description

The 74AC541 and 74ACT541 are octal buffer/line drivers designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers.

These devices are similar in function to the 74AC244 and 74ACTC244 while providing flow-through architecture (inputs on opposite side from outputs).

This pinout arrangement makes these devices especially useful as an output port for microprocessors, allowing ease of layout and greater PC board density.

It features a flow-through pin configuration (inputs and outputs on opposite sides), simplifying PCB routing and enabling higher layout density. The ACT variant provides TTL-compatible input thresholds with CMOS output performance.

Features

  • Octal non-inverting buffer/line driver
  • 3-state outputs for bus sharing
  • Flow-through architecture (inputs opposite outputs)
  • Reduced ICC and IOZ (≈50% lower than earlier families)
  • High drive capability: ±24 mA output current
  • TTL-compatible inputs (ACT family)
  • High-speed CMOS technology

Pinouts

74ACT541 pinout

Functional Description

  • Each of the 8 buffers is non-inverting (A → Y)
  • Outputs are enabled when both OE pins are LOW
  • When either OE is HIGH, outputs enter high-impedance (Hi-Z) state
  • Designed for driving heavily loaded buses or long PCB traces

Design Notes

  • Use for bus buffering to isolate capacitive loads and improve signal integrity
  • Ensure proper control of OE pins to avoid bus contention
  • Decouple VCC with a 0.1 µF capacitor close to the device
  • Consider signal edge rates and termination for high-speed designs
  • Suitable for interfacing between TTL and CMOS logic domains

Typical Applications

  • Microprocessor address/data bus buffering
  • Memory interface drivers
  • Clock and signal distribution
  • Bus transceivers and system expansion

How to Choose This Part

  • Select ACT variant for TTL-level input compatibility
  • Use when strong drive capability (±24 mA) is required
  • Prefer flow-through pinout for simplified PCB routing
  • Consider AC/HC variants for pure CMOS-level systems

Alternative / Equivalent Products

  • 74AC541 (CMOS input thresholds)
  • 74ACT244 (similar function, different pinout)
  • 74HC541 (lower power, slower speed)
  • 74LVC541 (low-voltage modern alternative)

Other data sheets are available within the file:

74AC541MTC, 74AC541PC, 74AC541SC, 74AC541SJ, 74541, 74AC541

74ACT541 Datasheet PDF Download


74ACT541 pdf