NS4158
Nsiway
Needs validationmedium risk
NS4158 is a close Class-D SOP-8 candidate with higher output power.
Best Alternatives to NS4150C
NS4150C is a 3W mono Class-D SOP-8 audio amplifier. Alternatives need pinout, load and EMI-network review.
AI replacement insight
Electrical riskmedium
load, gain and EMI network may differ
Package riskmedium
SOP-8 matches but pinout is unknown
Firmware risklow
no digital control shown
Sourcing riskmedium
lifecycle data is mixed
Can it be replaced directly?
No pin-compatible replacement is confirmed from the provided fields.
Best replacement path
NS4158 is the closest kept candidate, but requires FAE pinout and thermal review.
Main risk
Pinout and Class-D application details are not verified.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | NS4150C | NS4158 | LM4871 | SC8002B | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOP-8 | SOP-8 | SOP-8 | SOP-8 | SOP-8 — same package; LM4871: same package; SC8002B: same package; BE8002D: same package |
| Pinout | 8 pins | 8 pins | 8 pins | 8 pins | 8 pins — pin roles missing; LM4871: pin roles missing; SC8002B: pin roles missing; BE8002D: pin roles missing |
| Voltage | 3.0-5.0V | 3.0-5.25V | 2.2-6V | 2.0-5.0V | 3.0-5.25V / 2.2-6V / 2.0-5.0V — range covers; LM4871: range covers; SC8002B: max equal; BE8002D: range covers |
| Power | 3W | 5W | 3W | 3W | 5W / 3W — thermal review; LM4871: condition unknown; SC8002B: same rating; BE8002D: same rating |
| Application | Class-D mono | Class-D mono | mono BTL | audio amp | Class-D mono / mono BTL / audio amp / Class AB — same role; LM4871: class missing; SC8002B: class missing; BE8002D: efficiency risk |
Application & sourcing insights
Questions & answers
NS4158 is the closest candidate in the provided data, but it is not confirmed pin-compatible.