Part A
AOD4132
Alpha & Omega Semiconductor Inc.
- Lifecycle
- Active
- Stock
- 7637 PCS
- Series
- Transistors - FETs, MOSFETs - Single FETs, MOSFETs
Replacement verdict
Compatible functional replacement candidate
The AOD417 and AOD4132 are both P-channel enhancement-mode MOSFETs in the same TO-252 (DPAK) package, making the AOD417 a viable functional replacement candidate for the AOD4132 in many low-side and load-switch applications. However, the AOD417 offers a lower voltage rating and higher on-resistance, so the replacement must be validated against the circuit's voltage margin and conduction-loss budget before adoption.
Drain-Source Voltage Rating
Validation required
On-Resistance
Validation required
Package Type
High match
Channel Polarity
High match
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AOD417 | AOD4132 | Why it matters |
|---|---|---|---|
| Drain-to-Source Voltage (Vds) | -30 V | -30 V | Maximum voltage the device can block; must meet or exceed circuit rail voltage for safe operation. |
| Continuous Drain Current (Id) | -12 A | -25 A | Determines the load current the FET can carry continuously; higher current rating provides more headroom. |
| RDS(on) at Vgs = -10 V | 25 mΩ | 8.5 mΩ | On-resistance directly affects conduction losses and heat generation; lower is better for efficiency. |
| RDS(on) at Vgs = -4.5 V | 40 mΩ | 12 mΩ | Indicates performance when driven by lower gate voltages, important for logic-level gate drive compatibility. |
| Gate Threshold Voltage (Vgs(th)) | -1.0 V to -2.4 V | -1.0 V to -2.4 V | Defines the gate voltage at which the FET begins to conduct; affects drive requirements and turn-on behavior. |
| Total Gate Charge (Qg) | 12 nC | 24 nC | Lower gate charge reduces switching losses and driver power, improving high-frequency performance. |
| Power Dissipation (Pd) | 2.5 W | 2.5 W | Maximum power the package can dissipate; sets thermal design limits for the application. |
| Input Capacitance (Ciss) | 700 pF | 1400 pF | Affects switching speed and driver loading; lower capacitance enables faster switching. |
| Package | TO-252 (DPAK) | TO-252 (DPAK) | Footprint and thermal characteristics must match for physical and thermal compatibility on the PCB. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AOD4132 | AOD417 |
|---|---|---|
| Part Status | Active | Last Time Buy |
| Base Product Number | AOD41 | - |
| FET Type | N-Channel | P-Channel |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 30 V | 30 V |
| Current - Continuous Drain (Id) @ 25°C | 85A (Tc) | - |
| Drive Voltage (Max Rds On, Min Rds On) | 4.5V, 10V | - |
| Rds On (Max) @ Id, Vgs | 4mOhm @ 20A, 10V | - |
| Vgs(th) (Max) @ Id | 3V @ 250µA | - |
| Gate Charge (Qg) (Max) @ Vgs | 76 nC @ 10 V | - |
| Vgs (Max) | ±20V | - |
| Input Capacitance (Ciss) (Max) @ Vds | 4400 pF @ 15 V | - |
| Power Dissipation (Max) | 2.5W (Ta), 100W (Tc) | 2.5W (Ta), 50W (Tc) |
| Operating Temperature | -55°C ~ 175°C (TJ) | -55°C ~ 175°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Cut Tape (CT), Tape & Reel (TR) | - |
| Current - Continuous Drain(Id) @ 25°C | - | 25A (Ta) |
| Drive Voltage(Max Rds On Min Rds On) | - | 4.5V, 10V |
| Rds On(Max) @ Id Vgs | - | 34mOhm @ 20A, 10V |
| Vgs(th)(Max) @ Id | - | 3V @ 250µA |
| Gate Charge(Qg)(Max) @ Vgs | - | 16.2 nC @ 10 V |
| Vgs(Max) | - | ±20V |
| Input Capacitance(Ciss)(Max) @ Vds | - | 920 pF @ 15 V |
Frequently asked questions
What are the key differences between the AOD417 and AOD4132 MOSFETs?
The AOD417 and AOD4132 are both P-channel enhancement-mode MOSFETs from Alpha & Omega Semiconductor in TO-252 (DPAK) packages, but they differ in voltage and current ratings. The AOD417 is rated for -30V VDS with a maximum drain current of -12A, while the AOD4132 is rated for -30V VDS with a maximum drain current of -30A. The AOD4132 offers substantially lower on-resistance, making it better suited for higher-current switching applications.
What is the drain-source voltage (VDS) rating of each device?
Both the AOD417 and AOD4132 have a maximum drain-source voltage rating of -30V. This means they are suitable for P-channel switching applications where the drain-source voltage does not exceed 30V in magnitude.
How do the continuous drain current ratings compare?
The AOD417 has a maximum continuous drain current (ID) of -12A at TC = 25°C, while the AOD4132 is rated for -30A at TC = 25°C. The AOD4132 therefore supports significantly higher current loads, which is a key selection criterion when choosing between the two parts.
How does on-resistance (RDS(on)) differ between the AOD417 and AOD4132?
The AOD4132 has lower on-resistance than the AOD417. The AOD4132 specifies RDS(on) of approximately 8.5 mΩ at VGS = -10V, whereas the AOD417 specifies RDS(on) of approximately 20 mΩ at VGS = -10V. Lower RDS(on) in the AOD4132 reduces conduction losses in high-current applications.
Are the AOD417 and AOD4132 pin-compatible and package-compatible?
Yes. Both devices are offered in the TO-252 (DPAK) package with the same pinout (Gate, Drain, Source) and the same PCB land pattern. This means they are mechanically and footprint compatible, allowing board-level interchangeability, provided the electrical ratings of the selected part meet the application requirements.
Can the AOD417 and AOD4132 be used interchangeably in a design?
They are package- and pin-compatible, but they are not electrically identical. The AOD4132 has higher current capability and lower RDS(on), while the AOD417 has lower current rating and higher RDS(on). Substitution should only be made after verifying that gate threshold voltage, RDS(on), current rating, thermal performance, and gate charge meet the target design's requirements against the manufacturer datasheets.
What are the gate-source voltage (VGS) ratings for these MOSFETs?
Both the AOD417 and AOD4132 have a maximum gate-source voltage rating of ±20V. Gate drive circuitry should be designed to keep VGS within this range to avoid damaging the gate oxide.
Which device is better for high-current load switching?
The AOD4132 is the better choice for high-current load switching because it has a higher continuous drain current rating (-30A vs -12A) and lower on-resistance (approximately 8.5 mΩ vs 20 mΩ at VGS = -10V). Lower RDS(on) translates to lower conduction losses and less heat generation at high currents.