SR540Alternatives & Equivalent Parts
About SR540
SR540 is a Diode component manufactured by HY Electronic Corp. It comes in a Diodes, Axial Diameter Horizontal Mounting package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Get one quote covering all 2 alternatives for SR540 — response within 24 hours.
Specification Comparison
| Parameter | SR540Source | LM2577M-ADJ | LM2577T-12/NOPB |
|---|---|---|---|
| Manufacturer | HY Electronic Corp | Texas Instruments | Texas Instruments |
| Package Type | Diodes, Axial Diameter Horizontal Mounting | Small Outline Packages | Transistor Outline, Vertical |
| Pin Count | 2 | 24 | 5 |
| Temperature Range | -55.0°C ~ 150.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C |
| Price | $0.0480 | $4.8854 | $3.6000 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | CONTACT MANUFACTURER | NOT RECOMMENDED | OBSOLETE |
| Electrical Parameters | |||
| Reach Compliance Code | Unknown | Compliant | — |
| Additional Feature | FREE WHEELING DIODE | — | — |
| Application | GENERAL PURPOSE | — | — |
| Case Connection | ISOLATED | — | — |
| Configuration | SINGLE | — | — |
| Diode Element Material | SILICON | — | — |
| Diode Type | RECTIFIER DIODE | — | — |
| Forward Voltage-Max (VF) | 0.55 V | — | — |
| JEDEC-95 Code | DO-27 | — | — |
| JESD-30 Code | O-PALF-W2 | R-PDSO-G24 | R-PSSO-G5 |
| Non-rep Pk Forward Current-Max | 150 A | — | — |
| Number of Elements | 1 | — | — |
| Number of Phases | 1 | — | — |
| Output Current-Max | 5 A | 6 A | 6 A |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Shape | ROUND | RECTANGULAR | UNSPECIFIED |
| Package Style | LONG FORM | SMALL OUTLINE | SMALL OUTLINE |
| Rep Pk Reverse Voltage-Max | 40 V | — | — |
| Reverse Current-Max | 1000 µA | — | — |
| Surface Mount | NO | YES | NO |
| Technology | SCHOTTKY | BIPOLAR | BIPOLAR |
| Terminal Form | WIRE | GULL WING | — |
| Terminal Position | AXIAL | DUAL | SINGLE |
| Pbfree Code | — | No | No |
| Analog IC - Other Type | — | SWITCHING REGULATOR | SWITCHING REGULATOR |
| Control Mode | — | CURRENT-MODE | CURRENT-MODE |
| Control Technique | — | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | — | 40 V | 40 V |
| Input Voltage-Min | — | 3.5 V | 3.5 V |
| Input Voltage-Nom | — | 5 V | 5 V |
| JESD-609 Code | — | e0 | e3 |
| Number of Functions | — | 1 | 1 |
| Output Voltage-Nom | — | 1.23 V | 12 V |
| Package Equivalence Code | — | SOP24,.4 | SIP5,.1,67TB |
| Peak Reflow Temperature (Cel) | — | 260 | — |
| Qualification Status | — | Not Qualified | Not Qualified |
| Subcategory | — | Switching Regulator or Controllers | — |
| Switcher Configuration | — | BOOST | BOOST |
| Switching Frequency-Max | — | 62 kHz | 62 kHz |
| Temperature Grade | — | AUTOMOTIVE | AUTOMOTIVE |
| Terminal Finish | — | Tin/Lead (Sn/Pb) | MATTE TIN |
| Terminal Pitch | — | 1.27 mm | 1.7 mm |
| Time@Peak Reflow Temperature-Max (s) | — | 40 | — |
| ## LM2577M-ADJ Alternates Showing results | — | Image | — |
| YTEOL | — | — | 0 |
| Output Voltage-Max | — | — | 12.6 V |
| Supply Current-Max (Isup) | — | — | 14 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 SR540 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for SR540 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 SR540 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.
Can't Find What You Need?
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FAQ
What is equivalent to SR540?
Known equivalents for SR540 include LM2577M-ADJ, LM2577T-12/NOPB. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of SR540?
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 SR540 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.