AN EMB-135 CREW SMELLED ELECTRICAL FUMES AFTER TKOF AND RETURNED TO LAND. THE SMELL WAS STRONGER AND LASTED LONGER FOR THE FLT ATT IN THE FORWARD JUMPSEAT.

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ON CLBOUT FROM RWY XX AT ZZZ; AT APPROX 5000 FT BOTH CAPT AND FO NOTICED A SLIGHT ELECTRICAL TYPE ODOR; FAIRLY STRONG FOR HALF A MINUTE OF SO; THEN DISSIPATED RAPIDLY; AND COMPLETELY WITHIN 3 OR 4 MINS. THERE WAS NO SMOKE; NOR ANY EICAS; NOR OTHER NOTIFICATION NOR SYMPTOM OF ANY FAILURE OR ABNORMAL CONDITION. CONCURRENTLY THE FLT ATTENDANT; SITTING IN THE FLT ATTENDANT JUMPSEAT; SMELLED THE SAME ODOR; BUT MUCH STRONGER AND LONGER LASTING; APPROX 6 MINS DURATION; WHICH HE RELAYED TO US. THE GALLEY WAS CHKED AND RULED OUT. THE FLT ATTENDANT STATED THE SMELL WAS STRONGEST AT HIS JUMPSEAT. NO PAX RPTED SMELLING ANYTHING. I WAS PNF AND RELAYED TO ZZZ DEP OUR REQUEST TO RETURN TO LNDG; WITH SOULS AND FUEL. THE CHKLISTS WERE PERFORMED PER THE AOM; WITH THE EXCEPTION THAT I MADE THE DECISION TO DELAY DONNING THE MASKS AND GOGGLES; DUE TO THE RELATIVELY MINUTE AND RAPIDLY DIMINISHED AMOUNT OF 'FUMES' AND OUR IMMEDIATE RETURN AND PROX TO ZZZ. I SENT AN ACARS TO DISPATCH; INFORMED ZZZ OPS AND MAINT; GAVE THE FLT ATTENDANT A NORMAL LNDG BRIEF AND PA'ED THE PAX. PF FO FLEW THE L TFC PATTERN BACK. WE STOPPED FOR CFR TO INSPECT. THEY FOUND NO INDICATION OF FIRE; NOR SMOKE. WE THEN PROCEEDED TO THE GATE UNDER OUR OWN PWR AND DEPLANED THERE. THERE WERE NO INJURIES. ALL 3 CREW MEMBERS ON BOARD THE ACFT SMELLED AN ELECTRICAL ODOR. I COULD VENTURE A GUESS AS TO THE PROBABILITY THAT A FUSE FUNCTIONED I'M PROPERLY IN THE BUS BIN BEHIND MY SEAT; BUT HAVE NO KNOWLEDGE OF THE ACTUAL CAUSE.