https://collections.library.yale.edu/catalog?f%5BcallNumber_ssim%5D%5B%5D=Hfd3+632+1&per_page=20&sort=title_ssim+asc%2C+oid_ssi+desc%2C+archivalSort_ssi+asc&view=list
Call Number: Hfd3 632 1 - Yale University Library Search Results
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https://www.futureelectronics.com/it/p/electromechanical--relays--signal-relays/hfd3-24-sr-257-hongfa-9050644
HFD3/24-SR(257) in Reel by Hongfa | Signal Relays | Future Electronics
24V,Standard Terminal, Reel, Signal Relay
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