| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| SG137AK/883B | Microsemi Corporation (now Microchip) | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, MBCY2 | LM237K vs SG137AK/883B |
| 7703403YA | National Semiconductor Corporation | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar | LM237K vs 7703403YA |
| IP137K-DESC | TT Electronics Resistors | Check for Price | Adjustable Negative Standard Regulator, MBFM2 | LM237K vs IP137K-DESC |
| IP137AKR1 | TT Electronics Resistors | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, MBFM2 | LM237K vs IP137AKR1 |
| UC137K | Unitrode Corporation | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, MBFM2 | LM237K vs UC137K |
| IP137AK-883BR1 | TT Electronics Resistors | Check for Price | Adjustable Negative Standard Regulator, MBFM2 | LM237K vs IP137AK-883BR1 |
| LM137AK | TT Electronics Resistors | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, MBFM2 | LM237K vs LM137AK |
| IP137AK-883B | TT Electronics Resistors | Check for Price | Adjustable Negative Standard Regulator, MBFM2 | LM237K vs IP137AK-883B |
| LM337KSTEEL/NOPB | Texas Instruments | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, MBFM2 | LM237K vs LM337KSTEEL/NOPB |
| LM337K | STMicroelectronics | Check for Price | Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, MBFM2 | LM237K vs LM337K |
Part Details for LM237K by STMicroelectronics
Results Overview of LM237K by STMicroelectronics
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM237K Information
LM237K by STMicroelectronics is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LM237K
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
LM237K-ND
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DigiKey | IC REG LINEAR NEG ADJ 1.5A TO3 Min Qty: 300 Container: Bulk |
0 Bulk |
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$3.5713 | Buy Now |
US Tariff Estimator: LM237K by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
LM237K Part Data Attributes
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LM237K
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
LM237K
STMicroelectronics
Adjustable Negative Standard Regulator, 1.2V Min, 37V Max, BIPolar, MBFM2
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | TO-204AA | |
| Package Description | To-3, 2 Pin | |
| Pin Count | 2 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Adjustability | Adjustable | |
| Dropout Voltage1-Nom | 3 V | |
| Input-Output Voltage Differential-Max | 40 V | |
| Input-Output Voltage Differential-Min | 3 V | |
| JESD-30 Code | O-MBFM-P2 | |
| Line Regulation-Max (%/V) | 0.05 | |
| Load Regulation-Max(%) | 1% | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature TJ-Max | 150 °C | |
| Operating Temperature TJ-Min | -25 °C | |
| Operating Temperature-Max | 150 °C | |
| Operating Temperature-Min | -25 °C | |
| Output Current1-Max | 1.5 A | |
| Output Voltage1-Max | 37 V | |
| Output Voltage1-Min | 1.2 V | |
| Package Body Material | Metal | |
| Package Code | BFM | |
| Package Equivalence Code | TO-204/-3 | |
| Package Shape | Round | |
| Package Style | Flange Mount | |
| Peak Reflow Temperature (Cel) | Not Specified | |
| Qualification Status | Not Qualified | |
| Regulator Type | Adjustable Negative Single Output Standard Regulator | |
| Surface Mount | No | |
| Technology | Bipolar | |
| Terminal Form | Pin/Peg | |
| Terminal Position | Bottom | |
| Time@Peak Reflow Temperature-Max (s) | Not Specified |
Alternate Parts for LM237K
This table gives cross-reference parts and alternative options found for LM237K. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM237K, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
LM237K Frequently Asked Questions (FAQ)
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The maximum power dissipation of the LM237K is dependent on the package type and thermal resistance. For the TO-220 package, the maximum power dissipation is around 2.5W. However, it's recommended to check the thermal resistance and maximum junction temperature to ensure safe operation.
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While the LM237K can handle high currents, it's not recommended for high-current applications due to its limited power dissipation capability. For high-current applications, it's better to use a dedicated voltage regulator IC with a higher power rating.
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To ensure stability, it's essential to follow the recommended layout and component selection guidelines in the datasheet. This includes using a suitable output capacitor, input capacitor, and resistors. Additionally, ensure that the input voltage is within the recommended range, and the output voltage is set correctly.
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No, the LM237K is designed to regulate positive voltages only. If you need to regulate negative voltages, you'll need to use a different voltage regulator IC or a specialized negative voltage regulator like the LM337.
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The minimum input voltage required for the LM237K to operate is around 2.5V, but this can vary depending on the output voltage and load current. It's recommended to check the datasheet for the specific input voltage requirements for your application.