LOS ANGELES (AP) _ Actor Raphael Campos, whose 30-year film career began with ''Blackboard Jungle'' and included regular roles on television's ''Rhoda'' and ''Centennial,' ' has died of cancer at the Motion Picture and Television Hospital. He was 49.

Campos, born May 13, 1936, in Santiago, Dominican Republic, died Tuesday at the show-business hospital in suburban Woodland Hills, spokeswoman Jean Ferris said Wednesday.

He came to the United States in 1949 and was appearing in the Equity Library Theater production of ''Heavenly Express'' when director Richard Brooks discovered him in New York and signed him and several other youths for ''Blackboard Jungle,'' which starred Glenn Ford as an embattled inner-city teacher.

Other cast members breaking into the movies with that film included Vic Morrow, Jamie Farr, Paul Mazursky and Sidney Poitier.

Brooks never forgot Campos. When he cast his latest film, about gambling - ''Fever,'' due for release in October - he had a character named Raphael saved for Campos, although they had not worked together since ''Blackboard Jungle,'' he said.

Other Campos film roles included ''Trial,'' in which he played an accused boy of Mexican descent, ''Dino'' with Sal Mineo, ''The Appaloosa'' with Marlon Brando, ''Mister Buddwing'' with James Garner, and ''Oklahoma Crude'' with George C. Scott.

On the ''Centennial'' TV miniseries, he played the part of Nacho. In ''Rhoda,'' he played Ramon Diaz Jr. Campos more recently appeared in episodes of ''St. Elsewhere'' and ''V.''

In his last years, the actor had turned to writing and directing. He contributed regularly to the New York magazine, Canales, and was working on a book about Hispanics in film called ''Hollywood Se Habla Espanol,'' said Kimberly Tuttle, a theatrical assistant with The Light Co., which represented Campos.

He also directed the play ''White Wings for a Black Dove'' on Broadway, Ms. Tuttle said.

In 1980, he won an Ace award from the New York Hispanic Press Association, and on Friday he will posthumously receive the Golden Eagle Award from the Nosotros civic group for his contributions to Hispanic culture, she said.

Campos was married twice, to singer Dinah Washington and model Sally Boyd, and divorced twice. Survivors include daughters Lucy and Mimi by Ms. Boyd as well as nine brothers and sisters. Funeral arrangements are pending.