This chip in electronic load DL24M, please help me identify it.
pin 4 it's out
and connected with pin 1 LM321 (on 4pcs lm321)
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\$\begingroup\$ is the component detective? ... the sloppy soldering may be the problem \$\endgroup\$– jsotolaCommented Jul 4 at 21:40
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1 Answer
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It's a Shanghai Belling (上海贝岭) BL1551B SPDT analog switch. The package is SC70-6, not SOT23-6. That's why dimensions are important for identification questions.
(Source: lcsc.com)
