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onsemi MMJT9410T1G
- Part No.:
- MMJT9410T1G
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
MMJT9410T1G.pdf
- Description:
- TRANS NPN 30V 3A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:3,167
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Product details
Overview
MMJT9410T1G from onsemi is an NPN silicon bipolar power transistor in SOT-223 package, rated for 3.0 A continuous collector current and 30 V collector-emitter sustaining voltage, with low VCE(sat) of 0.2 V (max) at 1.2 A, designed for medium-power switching in DC-DC converters, motor drivers, and load-switching circuits.
For engineers reviewing the MMJT9410T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 60–85 hFE range across 0.8–3.0 A, thermal resistance of 42 °C/W (junction-to-case), and validated SOT-223 footprint compatibility with high-current PCB pad layouts.
Technical Context
This device operates as a medium-current, medium-voltage NPN switch with base-driven saturation control. Its 3.0 A IC rating and 0.2 V VCE(sat) at 1.2 A enable efficient conduction in 24 V industrial loads, while its 72 MHz fT supports moderate-speed switching up to ~100 kHz without significant gain roll-off.
The SOT-223 package features dual collector terminals (pins 2 and 4) thermally bonded to an exposed copper tab, enabling 3.0 W dissipation at TC = 25°C and 1.7 W at TA = 25°C on a 1"² FR-4 pad - critical for thermal management in space-constrained power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO(sus) | 30 V min - sustains full blocking under transient overvoltage conditions in 24 V systems without breakdown. |
| IC (continuous) | 3.0 A - supports sustained load currents typical of solenoid drivers, fan controllers, and LED array switches. |
| VCE(sat) | 0.2 V max @ IC = 1.2 A - limits conduction loss to ≤240 mW, reducing heat generation in linear or PWM-regulated operation. |
| hFE | 60 min @ IC = 3.0 A - ensures reliable base drive margin with standard logic-level or microcontroller GPIO outputs. |
| RJC | 42 °C/W - enables direct thermal coupling to heatsink or copper pour, supporting junction temperatures up to +150°C. |
| fT | 72 MHz - provides sufficient small-signal gain-bandwidth for feedback loop stability in analog-controlled regulators. |
| Cob | 135 pF max - defines Miller capacitance impact on turn-off speed and gate driver loading in high-frequency switching. |
Pinout & Package
SOT-223 (TO-261) surface-mount package with exposed collector tab (pins 2 and 4 electrically and thermally connected); 3.8 mm × 6.3 mm footprint; 1.63 mm nominal height; UL 94 V-0 compliant epoxy.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input requiring ~300 mA base current to saturate at 3.0 A collector current (IC/IB = 10). |
| 2 | Collector | Main high-current output terminal; electrically and thermally tied to pin 4 and exposed copper tab. |
| 3 | Emiter | Reference node for emitter-follower or common-emitter configurations; connects to ground or low-side return path. |
| 4 | Collector | Secondary collector connection reinforcing thermal and current-carrying capacity; must be soldered to PCB copper area. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | 0.2 V max at 1.2 A enables <240 mW conduction loss, minimizing thermal stress in compact enclosures. |
| High hFE at high current | 60 min at 3.0 A allows direct drive from 3.3 V/5 V microcontrollers without external pre-driver stages. |
| Dual collector terminals | Pins 2 and 4 reduce current density and improve thermal spreading into PCB copper, supporting 3.0 W at TC = 25°C. |
| Pb-free SOT-223 package | RoHS-compliant construction with UL 94 V-0 flammability rating suitable for industrial and automotive-qualified assemblies. |
| ESD robustness | Human Body Model >8 kV and Machine Model >400 V ensure handling safety during automated assembly and field service. |
Applications
| Industrial Motor Control | DC-DC Converter Switch |
|---|---|
|
Use Scenario: Driving 24 V brushed DC motors in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: NPN power switch controlling motor direction and enable via base signal; operates in saturated on/off mode. Use Value: 3.0 A IC and 30 V VCEO(sus) support peak stall currents and inductive flyback transients without derating. |
Use Scenario: Low-side switch in non-isolated buck converter for 5 V/3 A point-of-load regulation. IC Role / Device Role / Timing Role: Main power switch modulated at 100 kHz; base driven by PWM controller with fixed duty cycle. Use Value: 0.2 V VCE(sat) limits conduction loss to 240 mW, enabling >92% efficiency at full load without active cooling. |
| LED Array Driver | Power Load Switch |
|
Use Scenario: Constant-current switching for 12 V, 2 A LED arrays in signage and architectural lighting. IC Role / Device Role / Timing Role: Linear or PWM-controlled current sink; emitter connected to sense resistor for feedback. Use Value: 60 hFE at 3.0 A ensures stable current regulation with minimal base drive variation across temperature. |
Use Scenario: High-side or low-side power distribution switch for 24 V industrial sensors and actuators. IC Role / Device Role / Timing Role: Solid-state replacement for mechanical relays; controlled by PLC digital output. Use Value: Dual collector pins and 42 °C/W RJC allow 1.7 W dissipation on standard FR-4, eliminating need for discrete heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN25050DFHTA | Higher VCEO = 50 V, lower IC = 2.5 A, SOT-23 package (no thermal tab). | Better suited for higher-voltage, lower-current logic-level switching; not thermally equivalent for 3 A loads. | Select when board space is constrained and voltage margin >50 V is required; avoid for sustained 3 A operation. |
| MJD122T4G | Same SOT-223 package, higher IC = 8 A, but VCEO = 100 V and VCE(sat) = 0.5 V (max) at 3 A. | Higher voltage capability trades off conduction efficiency; requires larger base drive due to lower hFE. | Choose when system voltage exceeds 30 V or surge immunity >100 V is mandated; accept 2.5× higher conduction loss. |
Compared with ZXTN25050DFHTA and MJD122T4G, the MMJT9410T1G delivers optimal balance of 30 V blocking, 3.0 A current, and 0.2 V saturation voltage in the SOT-223 thermal package - making it uniquely suited for cost-sensitive, thermally constrained 24 V industrial switching where efficiency and footprint are co-prioritized.
Availability
MMJT9410T1G is available at Aetrix Electronics and suitable for industrial motor control, DC-DC converter design, and LED driver development requiring stable component supply and RoHS-compliant packaging.
Supply support for MMJT9410T1G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MMJT9410T1G belongs to onsemi's Bipolar Power Transistor product line, engineered for robust, cost-effective medium-power switching in industrial automation, power supplies, and embedded control systems.
FAQ
What is the maximum continuous collector current rating for MMJT9410T1G?
The MMJT9410T1G is rated for 3.0 A continuous collector current at TC = 25°C with proper PCB copper thermal relief. Derating applies above 25°C case temperature per the 24 mW/°C slope in the datasheet. This rating assumes both collector pins (2 and 4) are fully soldered to a minimum 1"² FR-4 copper pad.
Does MMJT9410T1G support Pb-free soldering processes?
Yes, MMJT9410T1G is explicitly designated as a Pb-free package per onsemi documentation and meets JEDEC J-STD-020 moisture sensitivity level 3. It supports standard reflow profiles up to 260°C peak temperature for 5 seconds at 1/8" from the case, as verified in the official datasheet.
What is the base-emitter saturation voltage of MMJT9410T1G at full load?
The MMJT9410T1G exhibits a VBE(sat) of 1.25 V (max) at IC = 3.0 A and IB = 0.3 A, as specified in the Electrical Characteristics table. This value determines minimum base drive voltage needed for full saturation and is critical for ensuring low VCE(sat) performance.
Can MMJT9410T1G be used in linear regulator applications?
Yes, MMJT9410T1G can operate in linear mode, but only within its Safe Operating Area (SOA) limits shown in Figure 10. At 24 V output and 1 A load, dissipation exceeds 24 W - far beyond its 3.0 W TC = 25°C limit. It is best applied in switching mode or low-dropout linear roles with strict thermal management and current limiting.
How does the dual-collector configuration (pins 2 and 4) affect PCB layout for MMJT9410T1G?
The dual-collector configuration requires both pins 2 and 4 to be connected to the same high-current net and soldered to an extended copper pour. This reduces current density and improves thermal transfer - essential for achieving the rated 3.0 W dissipation. Splitting or omitting either pin compromises thermal performance and may cause premature failure.
MMJT9410T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 3 A
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 450mV @ 300mA, 3A
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 85 @ 800mA, 1V
- Power - Max:
- 3 W
- Frequency - Transition:
- 72MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223 (TO-261)
MMJT9410T1G FAQ
1.How can I place an order for MMJT9410T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MMJT9410T1G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MMJT9410T1G reliable?
The price and inventory of MMJT9410T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMJT9410T1G is usually 5 days.
3.What payment methods are accepted for MMJT9410T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMJT9410T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMJT9410T1G?
MMJT9410T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMJT9410T1G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MMJT9410T1G?
For technical support, including MMJT9410T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMJT9410T1G requirements.
6.How does Aetrix verify that MMJT9410T1G is sourced from the original manufacturer or authorized distributors?
All MMJT9410T1G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MMJT9410T1G meets industry standards.
7.What is the process for return or replacement of MMJT9410T1G?
All MMJT9410T1G units undergo pre-shipment inspection (PSI). If there is an issue with MMJT9410T1G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MMJT9410T1G part is unused and in its original packaging.
Return procedure for MMJT9410T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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