LK112SM50TRAlternatives & Equivalent Parts
About LK112SM50TR
LK112SM50TR is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a SOT23 (5-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 | LK112SM50TRSource | LK112SM33TR | LM350T | USB-B-S-F-W-TH | C0805C473K5RACTU | 0437.250WR |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | Texas Instruments | SAMTEC | Kemet | LITTELFUSE |
| Package Type | SOT23 (5-Pin) | SOT23 (5-Pin) | Transistor Outline, Vertical | Other | Other | Fuses Chip |
| Pin Count | 5 | 5 | 3 | 6 | 2 | 2 |
| Temperature Range | — | — | ~ 125.0°C | -50.0°C ~ 85.0°C | — | -55.0°C ~ 150.0°C |
| Price | $0.3193 | $0.2760 | $0.9982 | $0.2560 | $0.0136 | $0.4804 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | — | ACTIVE |
| Electrical Parameters | ||||||
| Factory Lead Time | 12 Weeks | 12 Weeks | — | 1 Week | — | — |
| YTEOL | 6.8 | 6.8 | 0 | 7 | — | 6.78 |
| Adjustability | FIXED | FIXED | ADJUSTABLE | — | — | — |
| Dropout Voltage1-Max | 0.5 V | 0.5 V | — | — | — | — |
| Dropout Voltage1-Nom | 0.35 V | 0.35 V | 2.3 V | — | — | — |
| Input Voltage Absolute-Max | 16 V | 16 V | — | — | — | — |
| Input Voltage-Max | 11 V | 9.3 V | 35 V | — | — | — |
| Input Voltage-Min | 6 V | 4.3 V | 4.2 V | — | — | — |
| JESD-30 Code | R-PDSO-G5 | R-PDSO-G5 | R-PSFM-T3 | — | — | — |
| JESD-609 Code | e3 | e3 | e0 | e3 | — | e3 |
| Line Regulation-Max | 0.02% | 0.04% | — | — | — | — |
| Load Regulation-Max | 0.09% | 0.09% | — | — | — | — |
| Number of Functions | 1 | 1 | 1 | — | — | — |
| Number of Outputs | 1 | 1 | 1 | — | — | — |
| Operating Temperature TJ-Max | 125 °C | 125 °C | 125 °C | — | — | — |
| Operating Temperature TJ-Min | -40 °C | -40 °C | — | — | — | — |
| Output Current1-Max | 0.2 A | 0.2 A | 3 A | — | — | — |
| Output Voltage1-Max | 5.1 V | 3.36 V | 32 V | — | — | — |
| Output Voltage1-Min | 4.9 V | 3.24 V | 1.25 V | — | — | — |
| Output Voltage1-Nom | 5 V | 3.3 V | — | — | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — | — |
| Package Equivalence Code | TSOP5/6,.11,37 | TSOP5/6,.11,37 | SIP3,.1TB | — | — | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | — | — |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH | FLANGE MOUNT | — | — | — |
| Packing Method | TR | TR | TUBE | — | — | TR |
| Peak Reflow Temperature (Cel) | 260 | 260 | NOT APPLICABLE | — | — | — |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | — | — |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR | — | — | — |
| Surface Mount | YES | YES | NO | — | — | YES |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | — | — | — |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | Tin/Lead (Sn/Pb) | — | — | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Form | GULL WING | GULL WING | THROUGH-HOLE | — | — | — |
| Terminal Pitch | 0.95 mm | 0.95 mm | 2.54 mm | — | — | — |
| Terminal Position | DUAL | DUAL | SINGLE | — | — | — |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | NOT APPLICABLE | — | — | — |
| Voltage Tolerance-Max | 2% | 1.8% | 3% | — | — | — |
| Pbfree Code | — | — | Yes | Yes | — | — |
| Date Of Intro | — | — | 1989-01-01 | — | — | — |
| Input-Output Voltage Differential-Max | — | — | 35 V | — | — | — |
| Input-Output Voltage Differential-Min | — | — | 3 V | — | — | — |
| Line Regulation-Max (%/V) | — | — | 0.07 | — | — | — |
| Load Regulation-Max(%) | — | — | 1.5% | — | — | — |
| ## LM350T Alternates Showing results | — | — | Image | — | — | — |
| Board Mounting Option | — | — | — | RETENTION CLIPS | — | — |
| Body Breadth | — | — | — | 0.425 inch | — | 1.63 mm |
| Body Depth | — | — | — | 0.638 inch | — | — |
| Body Length | — | — | — | 0.476 inch | — | — |
| Connector Type | — | — | — | USB CONNECTOR | — | — |
| Contact Finish Mating | — | — | — | GOLD FLASH | — | — |
| Contact Finish Termination | — | — | — | Matte Tin (Sn) - with Nickel (Ni) barrier | — | — |
| Contact Gender | — | — | — | FEMALE | — | — |
| Contact Material | — | — | — | NOT SPECIFIED | — | — |
| Contact Pattern | — | — | — | RECTANGULAR | — | — |
| Contact Style | — | — | — | USB B | — | — |
| DIN Conformance | — | — | — | NO | — | — |
| Durability | — | — | — | 1500 Cycles | — | — |
| Empty Shell | — | — | — | NO | — | — |
| Filter Feature | — | — | — | NO | — | — |
| IEC Conformance | — | — | — | NO | — | — |
| Insertion Force-Max | — | — | — | 1.4734 N | — | — |
| Insulator Material | — | — | — | HIGH TEMPERATURE THERMOPLASTIC | — | — |
| MIL Conformance | — | — | — | NO | — | — |
| Mixed Contacts | — | — | — | NO | — | — |
| Mounting Option 1 | — | — | — | LOCKING | — | — |
| Mounting Style | — | — | — | RIGHT ANGLE | — | — |
| Mounting Type | — | — | — | BOARD | — | — |
| Number Of Connectors | — | — | — | ONE | — | — |
| Number Of PCB Rows | — | — | — | 1 | — | — |
| Number of Ports | — | — | — | 1 | — | — |
| Number of Rows Loaded | — | — | — | 2 | — | — |
| Option | — | — | — | GENERAL PURPOSE | — | — |
| PCB Contact Pattern | — | — | — | RECTANGULAR | — | — |
| Plating Thickness | — | — | — | FLASH inch | — | — |
| Polarization Key | — | — | — | POLARIZED HOUSING | — | — |
| Shell Finish | — | — | — | NICKEL | — | — |
| Termination Type | — | — | — | SOLDER | — | — |
| Total Number of Contacts | — | — | — | 4 | — | — |
| Withdrawl Force-Min | — | — | — | 1.668 N | — | — |
| Blow Characteristic | — | — | — | — | — | FAST |
| Body Height | — | — | — | — | — | 0.835 mm |
| Body Length or Diameter | — | — | — | — | — | 3.2 mm |
| Circuit Protection Type | — | — | — | — | — | ELECTRIC FUSE |
| Fuse Size | — | — | — | — | — | 1206 |
| Mounting Feature | — | — | — | — | — | SURFACE MOUNT |
| Rated Breaking Capacity | — | — | — | — | — | 50 A |
| Rated Current | — | — | — | — | — | 0.25 A |
| Rated Voltage(AC) | — | — | — | — | — | 125 V |
| Rated Voltage(DC) | — | — | — | — | — | 125 V |
| Reference Standard | — | — | — | — | — | CSA; CUL; UL |
| Terminal Shape | — | — | — | — | — | WRAPAROUND |
| Trip Time or Delay | — | — | — | — | — | 5 s |
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 5 alternatives for LK112SM50TR — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for LK112SM50TR 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 LK112SM50TR 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 LK112SM50TR?
Known equivalents for LK112SM50TR include LK112SM33TR, LM350T, USB-B-S-F-W-TH. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LK112SM50TR?
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 LK112SM50TR 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.