The identifiers E89382, MV-6, and 94V-0 are commonly found on printed circuit boards (PCBs) manufactured by HannStar Board Corp, a major Taiwanese electronics producer. These markings are frequently mistaken for specific motherboard model numbers, but they actually refer to safety certifications and the raw PCB material rather than the layout of a specific device. Decoding the Identifiers
Finding a specific schematic for a board labeled e89382 mv-6 94v-0 can be a bit of a treasure hunt. If you are staring at a dead monitor, a flickering TV, or a non-responsive industrial control board with these markings, you aren't actually looking at the model number of the device—you’re looking at its safety and manufacturing credentials. Decoding the Label: What "e89382 mv-6 94v-0" Actually Means
: A flammability rating that indicates the board material is self-extinguishing within 10 seconds of a flame test.
1.1 e89382 – The UL Recognition Mark
The e prefix followed by a number is a UL (Underwriters Laboratories) File Number for a recognized component. Specifically, e89382 refers to a specific manufacturer’s PCB substrate material that has passed UL’s rigorous testing. This number is traceable in UL’s online database (UL Product iQ). Manufacturers using this mark have certified that the bare board material meets specific electrical, mechanical, and flammability standards.
He raised an eyebrow. "Not in the usual batches. Why?"
Crucial clue: The presence of MV-6 strongly suggests a 6-layer board with dedicated power, ground, and signal planes. Six-layer PCBs are not used for simple toys or basic adapters; they appear in noise-sensitive applications like medical devices, high-end audio, or complex SMPS topologies.
E89382: This is a UL (Underwriters Laboratories) file number assigned to HannStar Board Corp. It confirms the manufacturer has met specific safety and quality standards.
Mara dug deeper, ruffling through emails with the patience of someone who'd repaired radios by ear. There were approvals stamped by a purchasing manager who signed for features on behalf of clients. There were contract clauses that called for "optional remote provisioning" and a line item that read, in a bureaucratic whisper, "confidential client needs." The final approval came from an account rep whose commissions were fat with attachments.
To help me find the exact schematic for you, could you please provide the Brand and Model of the device, or any other alphanumeric codes printed on the board? Hannstar J Mv 6 94v 0.pdfl - Facebook
