SE8650K1-HF
SEAWARD
Needs validationlow risk
A strong functional alternative in a SOT-89 package with higher voltage and current ratings.
Best Alternatives to H7550-H#
H7550-H# is a versatile 5V, 100mA LDO voltage regulator notable for its high 40V input voltage capability and low quiescent current. Finding a substitute requires careful matching of the input voltage rating and verifying the pinout for the specific package used (TO92, SOT89, or SOT23-3).
AI replacement insight
Package riskhigh
Pinout must be verified for the specific package (SOT-89 or SOT23-3) as it is not guaranteed to be identical.
Electrical riskmedium
Some alternatives have lower input voltage ratings. Always check against application requirements.
Sourcing risklow
Multiple manufacturers offer similar 5V LDOs, providing sourcing flexibility.
Can it be replaced directly?
There is no guaranteed drop-in replacement. However, several parts like SE8650X2-HF exist in matching packages (SOT23-3, SOT-89) with similar or better electrical characteristics, but require pinout verification.
Best replacement path
SE8650X2-HF (SOT23-3) and SE8650K1-HF (SOT-89) are strong functional alternatives with superior voltage and current ratings. Select based on the required package.
Main risk
The primary risks are ensuring the candidate's input voltage rating is sufficient for the application and verifying that the pinout (Input, Ground, Output) matches the target's configuration for the specific package used.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | H7550-H# | SE8650K1-HF | SE8650X2-HF | SE8550K2-HF | Compatibility / risk |
|---|---|---|---|---|---|
| Output Voltage V | 5.0V | 5.0V | 5.0V | 5.0V | 5.0V — Matches target.; SE8650X2-HF: Matches target.; SE8550K2-HF: Matches target.; MG78L05T3: Matches target. |
| Input Voltage V | 40V | 80V | 80V | 35V-40V | 80V / 35V-40V / 30V — Higher max input voltage provides more margin.; SE8650X2-HF: Higher max input voltage provides more margin.; SE8550K2-HF: Matches or is slightly lower than target's 40V max.; MG78L05T3: Candidate has lower max input voltage. |
| Output Current A | 0.1A | 0.2A | 0.2A | 0.25A | 0.2A / 0.25A / 0.12A — Higher output current capability.; SE8650X2-HF: Higher output current capability.; SE8550K2-HF: Higher output current capability.; MG78L05T3: Slightly higher output current. |
| Package | TO92, SOT89, SOT23-3 | SOT89-3 | SOT23-3 | SOT-89 | SOT89-3 / SOT23-3 / SOT-89 — Matches one of the target's package options (SOT-89).; SE8650X2-HF: Matches one of the target's package options.; SE8550K2-HF: Matches one of the target's package options.; MG78L05T3: Matches one of the target's package options. |
| Temperature | -40°C to 85°C | - | -40°C to 105°C | -20°C to 85°C | -40°C to 105°C / -20°C to 85°C / -40°C to 85°C — Wider operating range.; SE8550K2-HF: Narrower operating range than target.; MG78L05T3: Matches target. |
Application & sourcing insights
Questions & answers
The best alternatives are SE8650X2-HF (SOT23-3) and SE8650K1-HF (SOT-89). They offer higher input voltage and output current in packages that match the target's options, but require pinout verification.