onsemi MJ11016
- Part No.:
- MJ11016
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-204AA, TO-3
- Datasheet:
-
MJ11016.pdf
- Description:
- TRANS NPN DARL 120V 30A TO204
- Quantity:
- Payment:

- Shipping:

Inventory:4,520
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MJ11016 from onsemi is an NPN Darlington power transistor in TO-3 metal package, rated for 120 VCEO, 30 A collector current, and 200 W total dissipation at TC = 25 °C. It delivers minimum hFE = 1000 at IC = 20 A and operates up to +200 °C junction temperature, designed for high-current linear and switching output stages in audio amplifiers and industrial motor drivers.
For engineers reviewing the MJ11016 datasheet, pinout, applications, or equivalent options, key selection criteria include its monolithic Darlington construction with built-in base-emitter shunt resistor, thermal resistance of 0.87 °C/W (junction-to-case), and safe operating area defined by bonding wire, thermal, and secondary breakdown limits.
Technical Context
The MJ11016 implements a monolithic Darlington pair with integrated ~8 kΩ base-emitter shunt resistor, enabling simplified drive requirements and stable biasing without external components. Its structure supports high DC current gain while maintaining robustness under sustained conduction at elevated temperatures.
Rated for VCEO = 120 V and IC = 30 A, the device operates within a junction temperature range of −55 °C to +200 °C and exhibits VCE(sat) ≤ 3 V at IC = 20 A / IB = 200 mA, with VBE(sat) ≤ 3.5 V under the same conditions - critical for low-loss output stage design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 120 Vdc - maximum collector-emitter voltage before breakdown at IC = 100 mA, defining safe voltage headroom in high-voltage amplifier rails. |
| IC | 30 Adc - continuous collector current rating, supporting high-power output stages without forced cooling in many industrial applications. |
| hFE | 1000 (min) @ IC = 20 A - ensures low base drive current requirement (≤20 mA) for full-load switching or linear operation. |
| PD @ TC = 25 °C | 200 W - total device dissipation capability when mounted on heatsink maintaining case temperature at 25 °C. |
| RJC | 0.87 °C/W - junction-to-case thermal resistance, enabling precise heatsink sizing for target junction temperature under load. |
| TJ Range | −55 °C to +200 °C - extended operational junction temperature range supports reliability in harsh environments like motor control enclosures. |
Pinout & Package
Package: TO-204AA (TO-3) metal can, case-isolated, with collector connected to the metal case for direct heatsinking. Style 1 configuration per onsemi mechanical drawing CASE 1-07.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Base | Control input terminal; requires current-limited drive due to internal ~8 kΩ shunt resistor reducing effective input impedance. |
| Pin 2 | Emitter | Power return path; electrically isolated from case; must be routed with low-inductance, high-current trace or busbar. |
| Case | Collector | Main power output terminal; directly bonded to heatsink; requires insulating washer if heatsink is grounded or shared with other devices. |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic Darlington with shunt resistor | Eliminates need for external base-emitter resistor, simplifying PCB layout and improving bias stability across temperature. |
| High hFE ≥ 1000 | Reduces required base drive current to ≤20 mA at full 20 A collector load, easing driver stage design and lowering gate/driver losses. |
| Junction temperature rating +200 °C | Enables operation in sealed or high-ambient-temperature enclosures without derating, extending usable lifetime in industrial motor drives. |
| TO-3 metal package with case-as-collector | Provides low thermal resistance path to heatsink (RJC = 0.87 °C/W) and inherent EMI shielding for high-current switching nodes. |
Applications
| Audio Power Amplifiers | Industrial Motor Drivers |
|---|---|
|
Use Scenario: Output stage in Class AB or Class B high-fidelity audio amplifiers delivering >100 W into 4 Ω or 8 Ω loads. IC Role / Device Role / Timing Role: NPN Darlington output transistor handling peak currents up to 30 A during dynamic transients. Use Value: High hFE minimizes driver complexity; 120 VCEO supports ±60 V rail designs; TO-3 package enables direct mounting to large heatsinks. |
Use Scenario: H-bridge or half-bridge output switch in DC motor controllers for conveyor systems, pumps, and HVAC actuators. IC Role / Device Role / Timing Role: High-current switching element controlling bidirectional motor current flow in industrial-grade PWM-driven circuits. Use Value: 200 W dissipation and +200 °C junction rating allow sustained duty cycles without thermal shutdown; case-as-collector simplifies heatsinking in compact enclosures. |
| Linear Regulator Pass Elements | Welding Power Supplies |
|
Use Scenario: Series pass transistor in high-current adjustable linear regulators for test equipment and lab power supplies. IC Role / Device Role / Timing Role: Voltage-controlled current source regulating output voltage via feedback loop while dissipating up to 150 W continuously. Use Value: Low VCE(sat) (≤3 V) reduces dropout and heat generation; built-in shunt resistor stabilizes quiescent current under varying load conditions. |
Use Scenario: Primary switching element in capacitor-discharge or inverter-based spot welding power supplies requiring pulsed 20–30 A output. IC Role / Device Role / Timing Role: High-current pulse switch conducting short-duration (≤300 µs), high-duty-cycle current bursts into welding transformer primary. Use Value: Secondary breakdown-limited SOA supports repetitive high-peak-current pulses; 0.87 °C/W RJC enables rapid thermal recovery between weld cycles. |
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 = 100 V, hFE = 750 (min), TO-220 package with insulated tab. | Not suitable for 120 V rail designs; limited to lower-voltage industrial controls and consumer audio. | Select BDW93C only when board space constraints prohibit TO-3 mounting and voltage stress remains below 100 V. |
| MJ11032 | Same TO-3 package, higher VCEO = 150 V, but hFE = 500 (min) and PD = 250 W. | Offers greater voltage margin but reduced current gain increases base drive burden and may require larger driver stages. | Choose MJ11032 where system overvoltage transients exceed 120 V, accepting trade-off in drive complexity and thermal management. |
Compared with BDW93C and MJ11032, the MJ11016 uniquely balances 120 V rating, 1000 minimum hFE, and TO-3 thermal performance - making it optimal for cost-sensitive, high-reliability 100–120 V amplifier and motor drive outputs where driver simplicity and thermal headroom are prioritized.
Availability
MJ11016 is available at Aetrix Electronics and suitable for audio power amplifiers, industrial motor drivers, linear regulator pass elements, and welding power supplies requiring stable component supply and long-term industrial availability.
Supply support for MJ11016 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, high-reliability power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MJ11016 belongs to onsemi's legacy high-current complementary silicon transistor family, engineered for ruggedized linear and switching output stages in industrial amplification, motor control, and power conversion systems.
FAQ
What is the maximum continuous collector current rating for the MJ11016?
The MJ11016 is rated for 30 A continuous collector current (IC) at case temperature TC = 25 °C. Derating applies above this temperature per the datasheet's thermal resistance value of 0.87 °C/W. At TC = 100 °C, the maximum allowable IC drops to approximately 17 A to maintain junction temperature ≤200 °C. This rating assumes proper heatsinking and adherence to the SOA curves shown in Figure 5 of the MJ11016 datasheet.
Does the MJ11016 have a built-in base-emitter resistor, and what is its value?
Yes, the MJ11016 features a monolithic built-in base-emitter shunt resistor of approximately 8.0 kΩ, as confirmed in Figure 1 of the official onsemi datasheet. This resistor stabilizes the Darlington pair's bias point, reduces sensitivity to leakage currents, and eliminates the need for an external resistor in most linear and switching applications - simplifying circuit design and improving thermal stability across operating temperature ranges.
What is the collector-emitter saturation voltage (VCE(sat)) specification for the MJ11016 at full load?
The MJ11016 specifies VCE(sat) ≤ 3 V at IC = 20 A and IB = 200 mA, per the Electrical Characteristics table in the onsemi datasheet. At higher current (IC = 30 A, IB = 300 mA), VCE(sat) rises to ≤ 4 V. These values define conduction loss in switching applications and dropout voltage in linear regulator use - directly impacting thermal design and efficiency calculations for the MJ11016.
Is the MJ11016 pin-compatible with the MJ11012, and how do their ratings differ?
The MJ11016 and MJ11012 share identical TO-3 pinout (Style 1: Pin 1 = Base, Pin 2 = Emitter, Case = Collector) and mechanical footprint, but differ electrically: MJ11012 has VCEO = 60 V and is discontinued, while MJ11016 offers VCEO = 120 V and remains active. Both deliver hFE ≥ 1000 at IC = 20 A, but MJ11016 supports higher-voltage rails without redesigning the output stage layout - making it a functional upgrade path where voltage headroom is critical.
What is the thermal resistance junction-to-case (RJC) for the MJ11016, and how does it impact heatsink selection?
The MJ11016 has a specified thermal resistance RJC = 0.87 °C/W, measured from junction to case surface. This value enables precise heatsink thermal resistance calculation: for example, to hold TJ ≤ 150 °C at PD = 120 W and ambient TA = 50 °C, the required RCA (case-to-ambient) must be ≤ 0.83 °C/W. This RJC figure is foundational for thermal modeling and ensures reliable long-term operation of the MJ11016 in high-power applications.
MJ11016 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):
- 30 A
- Voltage - Collector Emitter Breakdown (Max):
- 120 V
- Vce Saturation (Max) @ Ib, Ic:
- 4V @ 300mA, 30A
- Current - Collector Cutoff (Max):
- 1mA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 1000 @ 20A, 5V
- Power - Max:
- 200 W
- Frequency - Transition:
- 4MHz
- Operating Temperature:
- -55°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-204 (TO-3)
MJ11016 FAQ
1.How can I place an order for MJ11016 through Aetrix?
Please submit a Request for Quotation (RFQ) for MJ11016 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 MJ11016 reliable?
The price and inventory of MJ11016 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJ11016 is usually 5 days.
3.What payment methods are accepted for MJ11016?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJ11016 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJ11016?
MJ11016 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJ11016 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 MJ11016?
For technical support, including MJ11016 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJ11016 requirements.
6.How does Aetrix verify that MJ11016 is sourced from the original manufacturer or authorized distributors?
All MJ11016 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 MJ11016 meets industry standards.
7.What is the process for return or replacement of MJ11016?
All MJ11016 units undergo pre-shipment inspection (PSI). If there is an issue with MJ11016, 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 MJ11016 part is unused and in its original packaging.
Return procedure for MJ11016:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MJ11016 Tags

-
MMBT3906LT1G
onsemi

-
MMBT3904-7-F
Diodes Incorporated

-
MMBT3904LT1G
onsemi

-
MMBT3906-7-F
Diodes Incorporated

-
MMBT3904-TP
Micro Commercial Co

-
MMBT2222A-7-F
Diodes Incorporated

-
BC846BLT1G
onsemi

-
BC847B,215
Nexperia USA Inc.

-
SMMBT3904LT1G
onsemi

-
MMBT2222A-TP
Micro Commercial Co

-
MMBTA06LT1G
onsemi

-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

