TIP125Alternatives & Equivalent Parts
About TIP125
TIP125 is a Transistor BJT PNP component manufactured by STMicroelectronics. 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 | TIP125Source | TIP122G | TIP120G | EC11K1525401 | SRR1260-331K | TIP127G |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | ON Semiconductor | ON Semiconductor | ALPS | Bourns | ON Semiconductor |
| Package Type | Transistor Outline, Vertical | Transistor Outline, Vertical | Transistor Outline, Vertical | Other | Other | Transistor Outline, Vertical |
| Pin Count | 3 | 3 | 3 | 7 | 2 | 3 |
| Temperature Range | ~ 150.0°C | ~ 150.0°C | ~ 150.0°C | — | -40.0°C ~ 125.0°C | ~ 150.0°C |
| Price | $0.2112 | $0.2362 | $0.2250 | — | $0.3200 | $0.3078 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| Factory Lead Time | 14 Weeks | 10 Weeks | — | — | 18 Weeks | 11 Weeks |
| YTEOL | 9 | 4 | 4 | — | 6.9 | 4 |
| Collector Current-Max (IC) | 5 A | 5 A | 5 A | — | — | 5 A |
| Collector-Emitter Voltage-Max | 60 V | 100 V | 60 V | — | — | 100 V |
| Configuration | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR | — | — | DARLINGTON WITH BUILT-IN DIODE AND RESISTOR |
| DC Current Gain-Min (hFE) | 1000 | 1000 | 1000 | — | — | 1000 |
| JEDEC-95 Code | TO-220AB | TO-220AB | TO-220AB | — | — | TO-220AB |
| JESD-30 Code | R-PSFM-T3 | R-PSFM-T3 | R-PSFM-T3 | — | — | R-PSFM-T3 |
| JESD-609 Code | e3 | e3 | e3 | — | e3 | e3 |
| Number of Elements | 1 | 1 | 1 | — | — | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | — | RECTANGULAR |
| Package Style | FLANGE MOUNT | FLANGE MOUNT | FLANGE MOUNT | — | SMT | FLANGE MOUNT |
| Polarity/Channel Type | PNP | NPN | NPN | — | — | PNP |
| Power Dissipation Ambient-Max | 65 W | 2 W | — | — | — | 2 W |
| Power Dissipation-Max (Abs) | 65 W | 65 W | 65 W | — | — | 65 W |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | — | Not Qualified |
| Surface Mount | NO | NO | NO | — | YES | NO |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | — | Matte Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | — | — | THROUGH-HOLE |
| Terminal Position | SINGLE | SINGLE | SINGLE | — | — | SINGLE |
| Transistor Application | SWITCHING | AMPLIFIER | AMPLIFIER | — | — | AMPLIFIER |
| Transistor Element Material | SILICON | SILICON | SILICON | — | — | SILICON |
| VCEsat-Max | 4 V | — | — | — | — | — |
| ## TIP125 Alternates Showing results | Image | — | — | — | — | — |
| Pbfree Code | — | Yes | Yes | — | Yes | Yes |
| Manufacturer Package Code | — | 221A | 221A | — | — | 221A |
| Additional Feature | — | LEADFORM OPTIONS ARE AVAILABLE | — | — | — | LEADFORM OPTIONS ARE AVAILABLE |
| Case Connection | — | COLLECTOR | COLLECTOR | — | — | COLLECTOR |
| Peak Reflow Temperature (Cel) | — | 260 | — | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | 40 | — | — | — | — |
| Transition Frequency-Nom (fT) | — | 4 MHz | — | — | — | 4 MHz |
| Case/Size Code | — | — | — | — | 4949 | — |
| Construction | — | — | — | — | Rectangular | — |
| Core Material | — | — | — | — | FERRITE | — |
| DC Resistance | — | — | — | — | 0.58 Ω | — |
| Inductance-Nom (L) | — | — | — | — | 330 µH | — |
| Inductor Application | — | — | — | — | POWER INDUCTOR | — |
| Inductor Type | — | — | — | — | GENERAL PURPOSE INDUCTOR | — |
| Number of Functions | — | — | — | — | 1 | — |
| Package Height | — | — | — | — | 6 mm | — |
| Package Length | — | — | — | — | 12.5 mm | — |
| Package Width | — | — | — | — | 12.5 mm | — |
| Packing Method | — | — | — | — | TR, EMBOSSED, 13 INCH | — |
| Rated Current-Max | — | — | — | — | 1.15 A | — |
| Self Resonance Frequency | — | — | — | — | 3.2 MHz | — |
| Shape/Size Description | — | — | — | — | RECTANGULAR PACKAGE | — |
| Shielded | — | — | — | — | YES | — |
| Terminal Placement | — | — | — | — | DUAL ENDED | — |
| Terminal Shape | — | — | — | — | WRAPAROUND | — |
| Test Frequency | — | — | — | — | 0.001 MHz | — |
| Tolerance | — | — | — | — | 10% | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 5 alternatives for TIP125 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for TIP125 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 TIP125 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 TIP125?
Known equivalents for TIP125 include TIP122G, TIP120G, EC11K1525401. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of TIP125?
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 TIP125 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.