BD139GAlternatives & Equivalent Parts
About BD139G
BD139G is a Transistor BJT NPN component manufactured by ON Semiconductor. It comes in a Transistor Outline, Vertical package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | BD139GSource | MUR420RLG |
|---|---|---|
| Manufacturer | ON Semiconductor | ON Semiconductor |
| Package Type | Transistor Outline, Vertical | Diodes, Axial Diameter Horizontal Mounting |
| Pin Count | 3 | 2 |
| Temperature Range | ~ 150.0°C | -65.0°C ~ 175.0°C |
| Price | $0.3148 | $0.2131 |
| Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE |
| Electrical Parameters | ||
| Pbfree Code | Yes | Yes |
| Manufacturer Package Code | 77-09 | 267-05 |
| YTEOL | 4 | 5.99 |
| Collector Current-Max (IC) | 1.5 A | — |
| Collector-Emitter Voltage-Max | 80 V | — |
| Configuration | SINGLE | SINGLE |
| DC Current Gain-Min (hFE) | 25 | — |
| JEDEC-95 Code | TO-225AA | DO-201AD |
| JESD-30 Code | R-PSFM-T3 | O-PALF-W2 |
| JESD-609 Code | e3 | e3 |
| Number of Elements | 1 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | ROUND |
| Package Style | FLANGE MOUNT | LONG FORM |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | — |
| Polarity/Channel Type | NPN | — |
| Power Dissipation-Max (Abs) | 12.5 W | — |
| Qualification Status | Not Qualified | Not Qualified |
| Surface Mount | NO | NO |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE | WIRE |
| Terminal Position | SINGLE | AXIAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | — |
| Transistor Application | AMPLIFIER | — |
| Transistor Element Material | SILICON | — |
| Factory Lead Time | — | 6 Weeks |
| Additional Feature | — | FREE WHEELING DIODE, LOW LEAKAGE CURRENT |
| Application | — | ULTRA FAST RECOVERY POWER |
| Breakdown Voltage-Min | — | 200 V |
| Case Connection | — | ISOLATED |
| Diode Element Material | — | SILICON |
| Diode Type | — | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | — | 0.71 V |
| Non-rep Pk Forward Current-Max | — | 125 A |
| Number of Phases | — | 1 |
| Output Current-Max | — | 4 A |
| Rep Pk Reverse Voltage-Max | — | 200 V |
| Reverse Current-Max | — | 5 µA |
| Reverse Recovery Time-Max | — | 0.035 µs |
| Reverse Test Voltage | — | 200 V |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering this alternative for BD139G — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for BD139G is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating BD139G replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to BD139G?
Known equivalents for BD139G include MUR420RLG. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BD139G?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify BD139G alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.