Varnitronics
NS4150B Shenzhen Nsiway Tech
Shenzhen Nsiway Tech

NS4150B

4mA 3V~5.25V 1-Channel 3Wx1@4Ω Class D MSOP-8 Audio Amplifiers RoHS

MSOP-8ROHS CompliantActive

NS4150B 3.0W Mono Class-D Audio Power Amplifier

Manufacturer part #
NS4150B
Store part #
C189961
Package / case
MSOP-8
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

1,40,465 in stock

#C189961

Stock & price checked 6 days ago

QuantityUnit pricePack price
5+₹16.95₹84.75
50+₹13.81₹690.50
150+₹12.19₹1,828.50
500+₹10.86₹5,430.00
3,000+₹8.14₹24,420.00
6,000+₹7.82₹46,920.00

5 × ₹16.95

₹84.75

excl. GST

₹100.01 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 7–10 working days
  • GST invoice with every order
  • Standard pack: 3,000 per reel

NS4150B

₹84.75 for 5 + GST

Specifications

Quiescent Current
4mA
Voltage - Supply
3V~5.25V
Features
Filterless architecture;Enable/shutdown function;ESD protection;Automatic mute/no-noise switch
Total Harmonic Distortion + Noise (THD+N)
0.1%
Operating Temperature
-40℃~+85℃
Number of Inputs
1 Pair Differential Inputs
Speaker Channels
1-Channel
Efficiency
88%;90%
Output Power
3Wx1@4Ω
Class
Class D
Power Supply Rejection Ratio (PSRR)
-80dB

Packaging & compliance

RoHS
ROHS Compliant
Lifecycle
Active
Packaging
Tape & Reel (TR)
Standard pack
3,000 / Reel
Sold per
Piece
Minimum order
5 (multiples of 5)
Unit weight
0.201 g

Overview

NS4150B is an ultra-low EMI, filterless 3W mono Class-D audio power amplifier. Operating from a 5V supply, it delivers 3W into a 4Ω load with up to 90% efficiency. Advanced technology is employed to significantly reduce EMI across the full bandwidth, minimizing interference with other components. The filterless PWM modulation architecture with integrated gain reduces external component count, PCB area, and system cost, while spread-spectrum technology fully optimizes the new circuit design. The device integrates overcurrent protection, overtemperature protection, and undervoltage protection, which shut down the device under abnormal operating conditions to prevent damage. Once the fault condition is removed, the NS4150B automatically resumes normal operation.

Applications

  • Tablet
  • Dash Cam
  • Bluetooth Speaker

Key features

  • Operating voltage range: 3.0V~5.0V
  • Output power: 2.8W (5V/4Ω, THD=10%), 0.1% THD (0.5W/3.6V)
  • Up to 88% efficiency
  • High PSRR: -80dB (217Hz)
  • Filterless Class-D architecture
  • Excellent full-bandwidth EMI suppression
  • Excellent pop-and-click noise suppression
  • Low quiescent current: 4mA (3.6V supply, No load)
  • Overcurrent protection, overtemperature protection, undervoltage protection
  • MSOP8 package

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