NS4165B
8mA 3V~5.5V 1-Channel 3.3Wx1@4Ω ESOP-8 Audio Amplifiers
5.4W Mono Class AB/D Dual-Mode Audio Power Amplifier
- Manufacturer
- Shenzhen Nsiway Tech
- Manufacturer part #
- NS4165B
- Store part #
- C911420
- Package / case
- ESOP-8
- Category
- Audio Amplifiers
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
43,955 in stock
#C911420
Stock & price checked 6 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 5+ | ₹11.29 | ₹56.45 |
| 50+ | ₹9.04 | ₹452.00 |
| 150+ | ₹7.92 | ₹1,188.00 |
| 500+ | ₹7.08 | ₹3,540.00 |
| 3,000+ | ₹5.52 | ₹16,560.00 |
| 6,000+ | ₹5.19 | ₹31,140.00 |
5 × ₹11.29
₹56.45
excl. GST
₹66.61 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 3,000 per reel
NS4165B
₹56.45 for 5 + GST
Specifications
- Quiescent Current
- 8mA
- Voltage - Supply
- 3V~5.5V
- Features
- Filterless architecture
- Total Harmonic Distortion + Noise (THD+N)
- 0.1%
- Operating Temperature
- -40℃~+85℃
- Signal-to-Noise Ratio
- 78dB
- Speaker Channels
- 1-Channel
- Efficiency
- 90%
- Output Power
- 3.3Wx1@4Ω
- Class
- Class AB;Class D
- Power Supply Rejection Ratio (PSRR)
- -80dB
Packaging & compliance
- RoHS
- RoHS
- Lifecycle
- Active
- Packaging
- Tape & Reel (TR)
- Standard pack
- 3,000 / Reel
- Sold per
- Piece
- Minimum order
- 5 (multiples of 5)
- Unit weight
- 0.019 g
Overview
NS4165B is a mono audio power amplifier featuring switchable Class AB/D operation, ultra-low EMI, filterless design, and 5.4W high efficiency. The Class AB/D operating mode can be toggled via a single control pin's high/low logic level to suit different application environments. Even in Class D mode, NS4165B employs advanced technology to significantly reduce EMI across the full bandwidth, minimizing interference with other components. Its filterless PWM modulation architecture and integrated feedback resistors reduce external component count, PCB area, and system cost. At a 5V supply voltage, NS4165B delivers up to 5.4W output power into a 2Ω load.
Applications
- Bluetooth speakers
- Amplifiers
- Other portable audio devices
Key features
- Class AB/D operating mode switching with level setting
- Output power: 3.3W (4Ω load / VOD = 5V), 5.4W (2Ω load / Vpp = 5V)
- Recommended operating voltage: 3V ~ 5.5V
- 0.1% THD (1W output power, 5V supply, 4Ω load)
- Up to 90% efficiency
- ESOP8 package
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