SMMBT5551LT1GAlternatives & Equivalent Parts
About SMMBT5551LT1G
SMMBT5551LT1G is a Transistor BJT NPN component manufactured by ON Semiconductor. It comes in a SOT23 (3-Pin) 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 | SMMBT5551LT1GSource | NJL1302DG | NJL3281DG |
|---|---|---|---|
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Package Type | SOT23 (3-Pin) | Other | Transistor Outline, Vertical |
| Pin Count | 3 | 5 | 5 |
| Temperature Range | -55.0°C ~ 150.0°C | ~ 150.0°C | ~ 150.0°C |
| Price | $0.0163 | $2.8148 | $3.9700 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| Manufacturer Package Code | 318 | 340AA | 340AA |
| Factory Lead Time | 10 Weeks | 8 Weeks | 8 Weeks |
| Date Of Intro | 1999-01-01 | — | — |
| YTEOL | 7 | 4 | 4 |
| Collector Current-Max (IC) | 0.6 A | 15 A | 15 A |
| Collector-Emitter Voltage-Max | 160 V | 260 V | 260 V |
| Configuration | SINGLE | SINGLE WITH BUILT-IN DIODE | SINGLE WITH BUILT-IN DIODE |
| DC Current Gain-Min (hFE) | 30 | 45 | 45 |
| JEDEC-95 Code | TO-236 | — | — |
| JESD-30 Code | R-PDSO-G3 | R-PSFM-T5 | R-PSFM-T5 |
| JESD-609 Code | e3 | e3 | e3 |
| Number of Elements | 1 | 1 | 1 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | FLANGE MOUNT | FLANGE MOUNT |
| Peak Reflow Temperature (Cel) | 260 | — | — |
| Polarity/Channel Type | NPN | PNP | NPN |
| Power Dissipation-Max (Abs) | 0.3 W | 200 W | 200 W |
| Reference Standard | AEC-Q101 | — | — |
| Surface Mount | YES | NO | NO |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | MATTE TIN |
| Terminal Form | GULL WING | THROUGH-HOLE | THROUGH-HOLE |
| Terminal Position | DUAL | SINGLE | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | — |
| Transistor Application | SWITCHING | AMPLIFIER | AMPLIFIER |
| Transistor Element Material | SILICON | SILICON | SILICON |
| VCEsat-Max | 0.2 V | — | — |
| Additional Feature | — | HIGH RELIABILITY | HIGH RELIABILITY |
| Qualification Status | — | Not Qualified | Not Qualified |
| Transition Frequency-Nom (fT) | — | 30 MHz | 30 MHz |
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 all 2 alternatives for SMMBT5551LT1G — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for SMMBT5551LT1G 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 SMMBT5551LT1G 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 SMMBT5551LT1G?
Known equivalents for SMMBT5551LT1G include NJL1302DG, NJL3281DG. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SMMBT5551LT1G?
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 SMMBT5551LT1G 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.