: This is a UL 94 flammability standard rating from Underwriters Laboratories (UL). It indicates that the PCB material is self-extinguishing within 10 seconds of a flame being removed.
The "V" indicates the material was tested in a vertical orientation.
The marking does not refer to a specific electronic component (like a chip) but is a manufacturing identifier and safety rating printed on a Printed Circuit Board (PCB) sh1 94v0 datasheet free
Codes starting with "E" followed by numbers (e.g., E123456) are UL file numbers. You can look these up on the online UL Product iQ database to find the exact factory of origin.
| You want this | Do this | |---------------|---------| | Datasheet for a component marked SH1 | Look for other codes; search "S1H" or post a photo on EE forums. | | General 94V-0 material spec | Search "UL 94 V-0 specification PDF" or "94V-0 FR4 datasheet" . | | Free PDF download | Use Alldatasheet.com or manufacturer’s site (no payment required). | : This is a UL 94 flammability standard
Understanding the SH1 94V-0 Datasheet: A Comprehensive Guide to PCB Safety Standards
Search for: "S1B 94V-0 datasheet" - The S1x series (SMA package) is the direct electrical and flammability equivalent of the SH1 series. Their datasheets are universally available. The marking does not refer to a specific
Search for the or Component IC Codes instead.
Since the SH1 is a standard 1A rectifier, look for these cross-reference part numbers. Their datasheets are easier to find and also state 94V-0:
Are there any printed in white or yellow ink on the board?
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