RTR040N03TL ROHM Semiconductor MOSFET (N-Channel) (SOT23 (3-Pin)) In Stock
ROHM Semiconductor RTR040N03TL is an N-channel MOSFET with 30V drain-source breakdown voltage and 4A maximum drain current in a compact SOT-23 3-pin package. Its 66 mΩ on-resistance and built-in diode make it efficient for low-power switching. Available worldwide with fast shipping.
- Manufacturer
- ROHM Semiconductor
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- END OF LIFE
- Datasheet
- RTR040N03TL Datasheet PDF
- Category
- MOSFET (N-Channel)
- Price
- From $0.1080(MOQ 1)
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of RTR040N03TL?
- 30V breakdown voltage with 4A drain current and only 66 mΩ Rds(on) for low conduction losses in SOT-23
- Built-in body diode eliminates the need for an external freewheeling diode, simplifying circuit design
- Compact SOT-23 (3-pin) package enables dense PCB placement in space-constrained portable and wearable designs
What is RTR040N03TL used for?
The RTR040N03TL is ideal for battery-powered devices where load switching and reverse-current protection circuits require a low on-resistance N-channel MOSFET in a minimal footprint. Its 30V/4A ratings make it well-suited for DC motor drivers, LED lighting control, and power path management in smartphones, tablets, and IoT nodes. The built-in diode further simplifies synchronous rectification stages and buck converter topologies operating below 30V.
What are the specifications of RTR040N03TL?
| Pbfree Code | Yes |
| YTEOL | 3 |
| Configuration | SINGLE WITH BUILT-IN DIODE |
| DS Breakdown Voltage-Min | 30V |
| Drain Current-Max (ID) | 4A |
| Drain-source On Resistance-Max | 0.066Ω |
| FET Technology | METAL-OXIDE SEMICONDUCTOR |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e1 |
| Number of Elements | 1 |
| Operating Mode | ENHANCEMENT MODE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity/Channel Type | N-CHANNEL |
| Power Dissipation-Max (Abs) | 1W |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 10 |
| Transistor Application | SWITCHING |
| Transistor Element Material | SILICON |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
Where can I find the RTR040N03TL datasheet?
RTR040N03TL Datasheet DownloadOfficial datasheet from ROHM Semiconductor
What are equivalent replacements for RTR040N03TL?
Compatible alternatives and drop-in replacements for RTR040N03TL:
Frequently Asked Questions
What are the key electrical ratings of the RTR040N03TL and how do they define its application envelope?
The RTR040N03TL is rated at 30 V drain-source breakdown voltage and a maximum drain current of 4 A, with an on-resistance of 66 mΩ at the rated gate drive. These ratings make it suitable for low-voltage load switches and motor drivers operating from 1-cell to 3-cell lithium-ion battery stacks up to 12.6 V.
How does the built-in diode in RTR040N03TL benefit a synchronous buck converter design below 30V?
The RTR040N03TL includes an integrated body diode that conducts during dead-time intervals in a synchronous buck converter, preventing negative inductor current spikes without an external Schottky diode. In a 5V/2A converter this reduces component count by at least 1 part and can trim PCB area by several square millimeters on a tight layout.
For a compact wearable design, how much board space does the SOT-23 package of RTR040N03TL require?
The SOT-23 3-pin package of the RTR040N03TL has a standard footprint of approximately 1.3 mm × 2.9 mm, occupying under 4 mm² of PCB area. This tiny outline allows designers to place multiple switching elements within a single square centimeter, a critical advantage in smartwatch and fitness-tracker PCB layouts.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About ROHM Semiconductor
ROHM Semiconductor is a leading electronic component manufacturer. FindMyChip sources ROHM Semiconductor ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6300 | $0.63 |
| 1555+ | $0.1490 | $231.69 |
| 2000+ | $0.1444 | $288.80 |
| 2680+ | $0.1294 | $346.79 |
| 6000+ | $0.1090 | $654.00 |
| 12000+ | $0.1080 | $1296.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
AO3416
Alpha & Omega Semiconductors
MOSFET (N-Channel)
2SK3568
Toshiba
MOSFET (N-Channel)
BSS139 H6327
Infineon
MOSFET (N-Channel)
TPWR8004PL,L1Q
Toshiba
MOSFET (N-Channel)
TPW1R005PL,L1Q
Toshiba
MOSFET (N-Channel)
ZXMN3B01FTA
Diodes Inc.
MOSFET (N-Channel)
AO3422
Alpha & Omega Semiconductors
MOSFET (N-Channel)
SI4204DY-T1-GE3
Vishay
MOSFET (N-Channel)
IRLML2402TRPBF
Infineon
MOSFET (N-Channel)
IRLML2803TRPBF
Infineon
MOSFET (N-Channel)
IRF7607TRPBF
Infineon
MOSFET (N-Channel)
IPD530N15N3GATMA1
Infineon
MOSFET (N-Channel)
BSZ520N15NS3GATMA1
Infineon
MOSFET (N-Channel)
BSC360N15NS3GATMA1
Infineon
MOSFET (N-Channel)
SQ3426AEEV-T1_GE3
Vishay
MOSFET (N-Channel)
IPI041N12N3 G
Infineon
MOSFET (N-Channel)
PMZB290UNE2
Nexperia
MOSFET (N-Channel)
ZVN4306GVTA
Diodes Inc.
MOSFET (N-Channel)
SIA459EDJ-T1-GE3
Vishay
MOSFET (N-Channel)
NTR3C21NZT1G
ON Semiconductor
MOSFET (N-Channel)
TN2404K-T1-E3
Vishay
MOSFET (N-Channel)
SI2312CDS-T1-GE3
Vishay
MOSFET (N-Channel)
DMN2230UQ-7
Diodes Inc.
MOSFET (N-Channel)
CPH6442-TL-W
ON Semiconductor
MOSFET (N-Channel)