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DLP550JE: Difference of 1076-6439B and DLP550JE

Part Number: DLP550JE
Other Parts Discussed in Thread: DLP650LE, DLP650NE

Hi experts,

Is it correct to assume that the following EOL model number (Original) and the corresponding product (Replacement) are pin-compatible and have the same electrical characteristics?
Please let me know if there are any differences.

No. Original Replacement
1 1076-6439B DLP550JE
2 1280-6438B DLP650LE
3 1280-6439B DLP650LE
4 1910-6239E DLP650NE
5 1910-623AE DLP650NE

Best regards,
O.H