onsemi MJ11022
- Part No.:
- MJ11022
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-204AA, TO-3
- Datasheet:
-
MJ11022.pdf
- Description:
- TRANS NPN DARL 250V 15A TO204
- Quantity:
- Payment:

- Shipping:

Inventory:2,210
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Product details
Overview
MJ11022 from onsemi is an NPN complementary Darlington silicon power transistor designed for high-current, low-frequency switching and motor control circuits. It delivers 15 A continuous collector current, sustains 250 Vdc collector-emitter voltage, and achieves minimum DC current gain of 400 at 10 Adc - enabling robust amplification and switching in industrial drive stages.
For engineers reviewing the MJ11022 datasheet, pinout, applications, or equivalent options, this device is evaluated for use in linear amplifier output stages, DC motor H-bridge drivers, and high-voltage relay driver circuits where SOA-tested ruggedness and low saturation voltage are critical selection criteria.
Technical Context
The MJ11022 implements a monolithic Darlington pair architecture with integrated base-emitter resistor network optimized for high-current gain and thermal stability. Its safe operating area (SOA) is fully tested per JEDEC JESD78 at 44 V / 4.0 A for 250 ms pulses, ensuring reliability under transient overload conditions typical in motor commutation.
It operates with a fixed three-terminal configuration: collector tied to case (TO-3 metal package), emitter and base accessible via leads. The device exhibits 3.0 MHz current-gain bandwidth at 10 Adc/3.0 Vce, supporting moderate-speed switching up to ~10 kHz in hard-switched applications without external snubbing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO(sus) | 250 Vdc minimum - supports operation in 200 VDC bus systems with 25% safety margin |
| IC(continuous) | 15 Adc - drives loads such as 1/2 HP DC motors or solenoid banks directly |
| VCE(sat) @ 10 A | 1.8 V typical - limits conduction loss to ≤18 W at full rated current |
| hFE(min) @ 10 A | 400 - enables base drive current reduction to ≤25 mA for full output switching |
| RJC | 0.86 °C/W - requires heatsink thermal resistance ≤1.1 °C/W for 175 W dissipation at TJ = 175°C |
| Cob | 400 pF - sets upper frequency limit for small-signal amplification below 1 MHz |
| td / tf | 150 ns / 10.0 µs - defines turn-on delay and slow turn-off behavior suited for <5 kHz PWM |
Pinout & Package
Package: TO-3 (Case Style 1-07), metal-can package with collector internally connected to case. Mounting surface serves as primary heat path and electrical connection to collector terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Lead) | Base | Control input requiring ≥100 mA peak base current for full saturation at 15 A IC |
| 2 (Lead) | Emitter | Current return path; must be routed with low-inductance layout to avoid switching oscillation |
| Case | Collector | Main power terminal and thermal interface; electrically active - isolation from heatsink required unless system ground referenced |
Key Features
| Feature | Design Value |
|---|---|
| 100% Forward Bias SOA Tested | Validated at 44 V / 4.0 A / 250 ms - guarantees safe operation during motor stall or short-circuit transients |
| High hFE at High Current | Minimum 400 at 10 Adc - reduces base drive circuit complexity and power loss vs. single bipolar transistors |
| Low VCE(sat) at 10 A | 1.8 V typical - enables >90% efficiency in linear regulator or Class AB amplifier output stage |
| Thermal Resistance | 0.86 °C/W junction-to-case - supports compact heatsink designs when mounted with thermal compound and mechanical torque control |
| Pb-Free Packaging Option | MJ11022G variant available - meets RoHS Directive 2011/65/EU without compromising thermal or electrical performance |
Applications
| Industrial Motor Drive | Linear Power Amplifier |
|---|---|
Use Scenario: Driving 120–240 VDC brushed motors in conveyor systems with dynamic braking and stall protection. IC Role / Device Role / Timing Role: Main switching element in half-bridge output stage, handling bidirectional current up to 15 A. Use Value: SOA-tested ruggedness prevents failure during sudden load changes; 250 V rating accommodates back-EMF spikes up to 200 V. |
Use Scenario: Output stage of 50 W audio or instrumentation amplifier requiring low-distortion, high-current sourcing. IC Role / Device Role / Timing Role: NPN Darlington emitter-follower delivering 10–15 A peak into reactive loads. Use Value: 400 minimum hFE ensures stable biasing across temperature; 1.8 V VCE(sat) minimizes thermal drift in Class AB topology. |
| High-Voltage Relay Driver | DC Power Supply Pass Element |
Use Scenario: Solid-state replacement for electromechanical relays controlling 120/240 VAC loads via opto-isolated gate drive. IC Role / Device Role / Timing Role: High-side switch interfacing between microcontroller-level logic and mains-referenced load. Use Value: 250 V VCEO(sus) withstands AC line peaks; TO-3 case provides creepage clearance for reinforced insulation. |
Use Scenario: Series pass transistor in adjustable 0–100 V / 10 A lab bench power supply with foldback current limiting. IC Role / Device Role / Timing Role: Linear regulator pass element dissipating up to 175 W during worst-case dropout conditions. Use Value: 0.86 °C/W RJC enables direct mounting to extruded heatsink; 175 W PD rating supports continuous 10 A at 15 V dropout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current Darlington transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BDW93C | Lower VCEO(sus) = 100 Vdc; hFE(min) = 750 @ 5 A; TO-220 package | Not suitable for >120 VDC bus applications; limited SOA testing data | Select only for low-voltage (<100 V) motor control where footprint and cost outweigh voltage margin needs |
| TIP142 | VCEO = 100 Vdc; hFE(min) = 1000 @ 5 A; TO-218 package; no SOA test documentation | Lacks 250 V rating and verified 250 ms pulse SOA - unsuitable for industrial 200 VDC systems | Acceptable for consumer-grade 24–48 VDC power supplies but not for automotive or industrial motor control |
Compared with BDW93C and TIP142, the MJ11022 provides uniquely validated 250 V sustain voltage and 250 ms SOA compliance - making it the only option among the three qualified for 200 VDC industrial motor drive applications requiring guaranteed transient survivability.
Availability
MJ11022 is available at Aetrix Electronics and suitable for industrial motor drive, linear power amplifier, and high-voltage relay driver applications requiring stable component supply and long-term design continuity.
Supply support for MJ11022 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 is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MJ11022 belongs to onsemi's legacy high-power discrete transistor family, engineered specifically for ruggedized linear and switching applications in industrial automation and power conversion where voltage headroom and SOA integrity are non-negotiable.
FAQ
What is the maximum continuous collector current rating for the MJ11022?
The MJ11022 is rated for 15 Adc continuous collector current at TC = 25°C. Derating is required above 25°C at 1.16 W/°C, and actual usable current depends on heatsink capability and ambient conditions. At TC = 100°C, the practical continuous current drops to approximately 7.5 A based on its 175 W total power dissipation limit and 0.86 °C/W thermal resistance.
Is the MJ11022 pin-compatible with the MJ11021 PNP complement?
Yes, the MJ11022 is the NPN counterpart to the MJ11021 PNP transistor and shares identical TO-3 package dimensions, pinout (Base = Pin 1, Emitter = Pin 2, Collector = Case), and mechanical mounting. This allows direct complementary pairing in push-pull amplifier or H-bridge configurations without PCB redesign.
Does the MJ11022 have documented Safe Operating Area (SOA) validation?
Yes, the MJ11022 has 100% Forward Bias SOA testing performed per JEDEC JESD78 at VCE = 44 V, IC = 4.0 A, t = 250 ms. This verification ensures reliable operation during transient overloads common in motor starting, inductive load switching, and fault conditions - a key differentiator versus generic power transistors lacking published SOA curves.
What is the typical VCE(sat) of the MJ11022 at 15 A collector current?
The MJ11022 exhibits a typical VCE(sat) of 2.0 V at IC = 15 Adc and IB = 150 mA, as specified in the Electrical Characteristics table. This value increases to 3.4 V maximum under worst-case conditions. At 15 A, conduction loss reaches ~30 W, necessitating adequate heatsinking to maintain junction temperature within –65°C to +175°C limits.
Can the MJ11022 be used in switching power supplies above 20 kHz?
No, the MJ11022 is not recommended for switching power supplies operating above 20 kHz due to its 10.0 µs fall time and 3.0 MHz current-gain bandwidth. These characteristics result in excessive switching losses and thermal stress at high frequencies. It is optimized for low-frequency switching (<5 kHz) and linear applications where SOA and voltage rating are prioritized over speed.
MJ11022 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-204AA, TO-3
- Packaging:
- Tray
- Product Status:
- Obsolete
- Transistor Type:
- NPN - Darlington
- Current - Collector (Ic) (Max):
- 15 A
- Voltage - Collector Emitter Breakdown (Max):
- 250 V
- Vce Saturation (Max) @ Ib, Ic:
- 3.4V @ 150mA, 15A
- Current - Collector Cutoff (Max):
- 1mA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 400 @ 10A, 5V
- Power - Max:
- 175 W
- Frequency - Transition:
- -
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-204 (TO-3)
MJ11022 FAQ
1.How can I place an order for MJ11022 through Aetrix?
Please submit a Request for Quotation (RFQ) for MJ11022 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 MJ11022 reliable?
The price and inventory of MJ11022 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJ11022 is usually 5 days.
3.What payment methods are accepted for MJ11022?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJ11022 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJ11022?
MJ11022 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJ11022 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 MJ11022?
For technical support, including MJ11022 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJ11022 requirements.
6.How does Aetrix verify that MJ11022 is sourced from the original manufacturer or authorized distributors?
All MJ11022 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 MJ11022 meets industry standards.
7.What is the process for return or replacement of MJ11022?
All MJ11022 units undergo pre-shipment inspection (PSI). If there is an issue with MJ11022, 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 MJ11022 part is unused and in its original packaging.
Return procedure for MJ11022:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MJ11022 Tags

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MMBT3906LT1G
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MMBT3906-7-F
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BC846BLT1G
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BC847B,215
Nexperia USA Inc.

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