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onsemi MJL0302AG
- Part No.:
- MJL0302AG
- Manufacturer:
- onsemi
- Category:
- Single Bipolar Transistors
- Package:
- TO-264-3, TO-264AA
- Datasheet:
-
MJL0302AG.pdf
- Description:
- TRANS PNP 260V 15A TO-264
- Quantity:
- Payment:
- Shipping:
Inventory:3,291
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Product details
Overview
MJL0302AG from onsemi is a PNP complementary silicon power bipolar transistor designed for high-fidelity audio amplifier output stages. It delivers 15 A continuous collector current, 260 V VCEO, 180 W power dissipation at TC = 25°C, and exhibits exceptional safe operating area (SOA) with gain linearity across 50 mA–3.0 A. It is used in symmetrical push-pull output stages of home receivers and professional PA systems.
For engineers reviewing the MJL0302AG datasheet, pinout, applications, or equivalent options, key selection criteria include its verified SOA performance at high VCE, matched hFE within 10% versus MJL0281A, Pb-free TO-264 package thermal resistance of 0.69°C/W, and linear gain behavior critical for low-distortion audio amplification.
Technical Context
The MJL0302AG operates as a linear PNP power switch in Class AB audio output stages, requiring precise biasing to maintain symmetry with its NPN complement MJL0281AG. Its high BVCEO (260 V) and robust SOA support rail voltages up to ±100 V in discrete amplifier designs.
It features DC current gain (hFE) of 75–150 at IC = 0.5–3.0 A / VCE = 5 V, fT = 30 MHz at IC = 1 A, and VCE(sat) ≤ 1.0 V at IC = 5 A / IB = 0.5 A - parameters validated for stable operation under dynamic load conditions typical in high-power audio.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 260 V - supports ±100 V supply rails with margin for transient spikes in audio output stages |
| IC (continuous) | 15 A - enables ≥300 W RMS output into 4 Ω loads with proper heatsinking |
| PD @ TC = 25°C | 180 W - defines maximum steady-state power handling before thermal derating begins |
| RθJC | 0.69 °C/W - allows direct thermal interface to heatsink; junction rise ≈ 124°C at full 180 W |
| hFE @ IC = 3.0 A | 75–150 - ensures predictable base drive requirements and consistent gain matching with MJL0281AG |
| fT | 30 MHz - provides sufficient bandwidth for full-audio-spectrum fidelity without high-frequency roll-off |
| VCE(sat) @ IC = 5 A | ≤1.0 V - minimizes conduction loss and heat generation in saturated regions of Class AB operation |
Pinout & Package
Package: TO-264 (Case 340G, Style 2), Pb-free, isolated metal tab, screw-mountable. Thermal path optimized via case-to-heatsink interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control terminal; requires current-limited drive (IB ≤ 1.5 A continuous) to avoid second breakdown |
| 2 | Collector | Main current sink node; electrically connected to metal tab - must be insulated from heatsink unless common-collector topology |
| 3 | Emitter | Current source node; typically tied to negative rail in PNP output stage; low-inductance connection critical for stability |
Key Features
| Feature | Design Value |
|---|---|
| Exceptional Safe Operating Area | Validated SOA curve extends to 260 V / 30 A (5 ms pulse); prevents secondary breakdown during clipping or reactive load transients |
| NPN/PNP Gain Matching within 10% | hFE tracking between MJL0302AG and MJL0281AG across 50 mA–3.0 A enables balanced push-pull distortion cancellation |
| High BVCEO | 260 V rating allows use in high-voltage amplifier designs (e.g., 200 V rail systems) without derating for voltage margin |
| Excellent Gain Linearity | hFE variation <±15% over IC = 0.1–5.0 A range reduces harmonic distortion in linear amplification |
| High Frequency Response | fT = 30 MHz ensures flat gain response through 20 kHz with adequate phase margin for feedback stability |
Applications
| Home Audio Receivers | Professional PA Amplifiers |
|---|---|
Use Scenario: Discrete Class AB output stage in stereo receivers delivering 100–200 W per channel into 4–8 Ω loads. IC Role / Device Role / Timing Role: PNP power switch in complementary pair with MJL0281AG; handles negative half-cycle current delivery. Use Value: Matched hFE and SOA ensure symmetric clipping behavior and THD <0.05% at rated power. | Use Scenario: High-reliability output stage in touring-grade 500–1000 W PA amplifiers driving line arrays and stadium horns. IC Role / Device Role / Timing Role: Primary PNP output device in quasi-complementary or fully complementary topology; manages high-current, high-voltage swing under reactive loads. Use Value: 260 V VCEO and robust SOA prevent failure during long-duration bass transients and impedance dips below 2 Ω. |
| Theater Sound Systems | Studio Monitor Power Amplifiers |
Use Scenario: Multi-channel distributed amplification for cinema surround sound, requiring stable operation at elevated ambient temperatures. IC Role / Device Role / Timing Role: PNP output transistor mounted on forced-air-cooled heatsinks; biased for low-idle-current Class AB. Use Value: RθJC = 0.69°C/W enables thermal management at 70°C ambient with <125°C junction limit. | Use Scenario: Precision bi-amplified studio monitors demanding ultra-low noise, wide bandwidth, and zero crossover distortion. IC Role / Device Role / Timing Role: Final PNP gain stage in discrete feedback loop; operates with tight VBE(on) tolerance (≤1.2 V) for accurate bias setting. Use Value: Linear hFE and low VCE(sat) minimize thermal drift and intermodulation distortion in critical listening environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BDW84C | VCEO = 100 V, PD = 100 W, hFE = 25–100 - lower voltage/power rating and wider gain spread | Suitable only for ≤±50 V rail, <150 W amplifiers; not SOA-validated for audio clipping | Select BDW84C only for cost-sensitive, low-power consumer audio where 260 V margin is unnecessary |
| MJE15034 | VCEO = 250 V, PD = 200 W, hFE = 50–200 - higher power but looser gain matching (±40%) vs. MJL0281A | Used in high-power industrial amplifiers; lacks published complementary NPN match for symmetrical design | Choose MJE15034 when absolute max power >180 W is required and gain symmetry is secondary to peak output |
Compared with BDW84C and MJE15034, the MJL0302AG offers superior SOA integrity at 260 V, tighter hFE matching for push-pull linearity, and documented thermal performance in TO-264 - making it the preferred choice for high-end audio where distortion, reliability, and rail headroom are critical.
Availability
MJL0302AG is available at Aetrix Electronics and suitable for high-fidelity home receivers, professional PA systems, theater sound amplifiers, and studio monitor power stages requiring stable component supply and long-term manufacturability.
Supply support for MJL0302AG 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 manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MJL0302AG belongs to onsemi's legacy audio power transistor family, engineered specifically for high-linearity, high-reliability linear amplifier output stages - emphasizing SOA robustness, gain symmetry, and thermal stability in discrete audio designs.
FAQ
What is the maximum continuous collector current rating for the MJL0302AG?
The MJL0302AG has a maximum continuous collector current (IC) rating of 15 A at TC = 25°C. This rating assumes adequate heatsinking and derates linearly above 25°C case temperature per the published power derating curve. At 100°C case temperature, the usable IC drops to approximately 9 A to maintain safe junction temperature limits.
Is the MJL0302AG pin-compatible with the MJL0302A?
Yes, the MJL0302AG is a direct Pb-free replacement for the MJL0302A, sharing identical TO-264 (Case 340G, Style 2) mechanical dimensions, pinout (Base–Collector–Emitter), thermal characteristics, and electrical specifications. The "G" suffix denotes RoHS-compliant packaging with no functional or layout impact on existing MJL0302A designs.
Does the MJL0302AG require a mica insulator when mounted to a heatsink?
Yes, the MJL0302AG's collector is internally connected to the metal tab, so electrical isolation from the heatsink is mandatory unless the circuit topology intentionally references the collector to chassis ground. A mica or ceramic insulator with thermal grease must be used to maintain both electrical safety and optimal thermal transfer in standard emitter-follower or common-emitter configurations.
How does the MJL0302AG's safe operating area compare to the MJL1302A?
The MJL0302AG is a lower-power variant of the MJL1302A, with reduced SOA boundaries - particularly at high VCE and long pulse widths. While the MJL1302A sustains 30 A at 200 V (DC), the MJL0302AG's SOA is rated for 30 A only at VCE ≤ 100 V (5 ms pulse). For high-voltage, high-current applications beyond 180 W, the MJL1302A remains the appropriate selection.
Can the MJL0302AG be used as a direct replacement for the 2N6259 in an existing amplifier design?
No - the 2N6259 is an older 12 A / 100 V PNP transistor with significantly lower VCEO, smaller SOA, and unverified gain linearity. Substituting MJL0302AG introduces overvoltage risk if the original design operates near 100 V rails, and may cause instability due to mismatched fT and capacitance. A full circuit re-evaluation including bias network, compensation, and protection is required before substitution.
MJL0302AG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-264-3, TO-264AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 15 A
- Voltage - Collector Emitter Breakdown (Max):
- 260 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 500mA, 5A
- Current - Collector Cutoff (Max):
- 10µA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 75 @ 3A, 5V
- Power - Max:
- 180 W
- Frequency - Transition:
- 30MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-264
MJL0302AG FAQ
1.How can I place an order for MJL0302AG through Aetrix?
Please submit a Request for Quotation (RFQ) for MJL0302AG 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 MJL0302AG reliable?
The price and inventory of MJL0302AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MJL0302AG is usually 5 days.
3.What payment methods are accepted for MJL0302AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MJL0302AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MJL0302AG?
MJL0302AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MJL0302AG 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 MJL0302AG?
For technical support, including MJL0302AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MJL0302AG requirements.
6.How does Aetrix verify that MJL0302AG is sourced from the original manufacturer or authorized distributors?
All MJL0302AG 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 MJL0302AG meets industry standards.
7.What is the process for return or replacement of MJL0302AG?
All MJL0302AG units undergo pre-shipment inspection (PSI). If there is an issue with MJL0302AG, 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 MJL0302AG part is unused and in its original packaging.
Return procedure for MJL0302AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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