Alternatives to onsemi NCP45521IMNTWG-H
onsemi NCP45521IMNTWG-H and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 NCP45521IMNTWG-Honsemi | NCP45520IMNTWG-Honsemi | NCP45521IMNTWG-Lonsemi | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The footprint matches perfectly, but Pin 6 changes functionality from Slew Rate (SR) control to Power Good (PG) output. Any external resistor or capacitor on Pin 6 should be removed.It is packaged in the identical 8-DFN (2x2mm) Case 506CC package with matching package dimensions and height.The electrical parameters are identical (10.5A, 0.5V to 13.5V load range, 12.8 mOhm typical resistance), though the slew rate is internally fixed. | The pinout is exactly identical pin-for-pin, including Pin 6 operating as Slew Rate (SR) control.It is packaged in the identical 8-DFN (2x2mm) Case 506CC package with matching package dimensions and height.The EN logic polarity is inverted to active-low, requiring a hardware logic level inverter or firmware/GPIO control modification. | ||
 AI Summary | NCP45521IMNTWG-H by onsemi: Power Switch/Driver 1:1 N-Channel 10.5A 8-DFN (2x2). | The NCP45520IMNTWG-H is a direct sibling part that maintains the active-high enable polarity and 10.5A rating. The main difference is Pin 6, which functions as a Power Good output instead of offering adjustable slew rate control. It is an excellent drop-in option if adjustable soft-start control is not strictly required.
| The NCP45521IMNTWG-L is the active-low enable sibling of the queried part. It maintains identical electrical capabilities and physical pin assignments, including adjustable slew rate on Pin 6. However, the system's control logic must be updated or hardware-inverted to drive this active-low enable switch.
| |
| Lifecycle Status | Active | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | REACH | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Power Switch/Driver 1:1 N-Channel 10.5A 8-DFN (2x2) | Power Switch/Driver 1:1 N-Channel 10.5A 8-DFN (2x2) | Power Switch/Driver 1:1 N-Channel 10.5A 8-DFN (2x2) | |
| Manufacturer | onsemi | onsemi | onsemi | |
| Type | Power Management (PMIC) | Power Management (PMIC) | Power Management (PMIC) | |
| Datasheet | Open | Open | Open | |
| Lead Time | 44 weeks | 44 weeks | 44 weeks | |
| Country of Origin | MY, US, TH | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0070 | - | - | |
| Moisture Sensitivity Level | 3 (168 Hours) | - | - | |
| Features | Slew Rate Controlled | - | - | |
| Interface | On/Off | - | - | |
| Input Type | Non-Inverting | - | - | |
| Output Type | N-Channel | - | - | |
| Switch Type | General Purpose | - | - | |
| Rds On (Typ) | 12.8mOhm | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 8-VFDFN Exposed Pad | - | - |
Unlock all 4 alternatives
- Find & compare verified second sources
- Spot risk early with real-time part monitoring
- Stay compliant and production-ready
You searched one part. Parter watches your whole BOM.
All your BOM, at once
Parter maps every line to live stock, lead time, lifecycle and compliance data across the entire market — not part by part.
Hear about problems before they hit production
Allocation, EOL and last-time-buy notices surface the moment they appear, not when your buyer's PO bounces.
Qualified replacements in minutes, not days
Every at-risk line gets form-fit-function matches like the ones above — deltas flagged, evidence attached. Review, push to your BOM, and Parter starts watching the new part too.
Frequently asked questions
Yes. The onsemi NCP45521IMNTWG-H is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.
The closest qualified second sources for the onsemi NCP45521IMNTWG-H are the NCP45520IMNTWG-H (onsemi) and the NCP45521IMNTWG-L (onsemi), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the NCP45521IMNTWG-H are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The NCP45521IMNTWG-H (onsemi) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
Schedule a demo
See Parter in action
Discover how Parter can help your hardware team:
- Streamline your hardware operations with AI
- Detect and prevent lifecycle disruptions
- Accelerate product development
- Stay compliant and production-ready