MMBT5551LT1GAlternatives & Equivalent Parts
About MMBT5551LT1G
MMBT5551LT1G is a Transistor 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 | MMBT5551LT1GSource | ESD5B5.0ST1G | MM3Z18VT1G |
|---|---|---|---|
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Package Type | SOT23 (3-Pin) | Small Outline Diode Flat Lead | Other |
| Pin Count | 3 | 2 | 2 |
| Temperature Range | -55.0°C ~ 150.0°C | -55.0°C ~ 150.0°C | -65.0°C ~ 150.0°C |
| Price | $0.0077 | $0.0340 | $0.0135 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||
| Pbfree Code | Yes | Yes | Yes |
| Manufacturer Package Code | 318 | 502 | 477-02 |
| Date Of Intro | 1999-01-01 | — | — |
| YTEOL | 7 | 5.98 | 6.95 |
| Collector Current-Max (IC) | 0.06 A | — | — |
| Collector-Emitter Voltage-Max | 160 V | — | — |
| Configuration | SINGLE | SINGLE, 1 CHANNEL | SINGLE |
| DC Current Gain-Min (hFE) | 30 | — | — |
| JEDEC-95 Code | TO-236AB | — | — |
| JESD-30 Code | R-PDSO-G3 | R-PDSO-F2 | R-PDSO-G2 |
| 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 | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 |
| Polarity/Channel Type | NPN | — | — |
| Power Dissipation-Max (Abs) | 0.3 W | — | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Surface Mount | YES | YES | YES |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING | FLAT | GULL WING |
| Terminal Position | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | 30 |
| Transistor Application | SWITCHING | — | — |
| Transistor Element Material | SILICON | — | — |
| VCEsat-Max | 0.2 V | — | — |
| Additional Feature | — | EXCELLENT CLAMPING CAPABILITY, LOW CAPACITANCE | — |
| Breakdown Voltage-Max | — | 7.8 V | — |
| Breakdown Voltage-Min | — | 5.8 V | — |
| Breakdown Voltage-Nom | — | 6.8 V | — |
| Diode Element Material | — | SILICON | SILICON |
| Diode Type | — | TRANS VOLTAGE SUPPRESSOR DIODE | ZENER DIODE |
| Forward Voltage-Max (VF) | — | 0.9 V | 0.9 V |
| Non-rep Peak Rev Power Dis-Max | — | 50 W | — |
| Polarity | — | BIDIRECTIONAL | UNIDIRECTIONAL |
| Power Dissipation-Max | — | 0.2 W | 0.3 W |
| Reference Standard | — | IEC-61000-4-2 | — |
| Rep Pk Reverse Voltage-Max | — | 5 V | — |
| Reverse Current-Max | — | 1 µA | 0.05 µA |
| Reverse Test Voltage | — | 5 V | 12.6 V |
| Technology | — | AVALANCHE | ZENER |
| Factory Lead Time | — | — | 8 Weeks |
| Dynamic Impedance-Max | — | — | 45 Ω |
| Knee Impedance-Max | — | — | 80 Ω |
| Reference Voltage-Nom | — | — | 18 V |
| Voltage Tol-Max | — | — | 6.41% |
| Working Test Current | — | — | 5 mA |
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 MMBT5551LT1G — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for MMBT5551LT1G 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 MMBT5551LT1G 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 MMBT5551LT1G?
Known equivalents for MMBT5551LT1G include ESD5B5.0ST1G, MM3Z18VT1G. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of MMBT5551LT1G?
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 MMBT5551LT1G 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.