A C550 CAPT RPTS AN INEXPERIENCED FO FAILED TO LEVEL AT 1500 FT ON THE TEB 5 SID EVEN AFTER A THOROUGH PREFLT BRIEF AND CLBED TO 1800 FT BEFORE DSNDING AGAIN.

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WHILE DEPARTING THE TEB AIRPORT ON THE TEB 5 DEPARTURE; OUR AIRCRAFT MOMENTARILY FLEW THROUGH THE DEPARTURE PROCEDURE ALTITUDE OF 1500 FEET; REACHING AN ALTITUDE OF 1800 FEET BEFORE BEING QUICKLY CORRECTED BACK TO THE PROCEDURE ALTITUDE OF 1500 FEET. THE CO-PILOT WAS THE PILOT FLYING. AS WE APPROACHED OUR ALTITUDE LIMIT I REPEATED A CALL TO THE CO-PILOT THAT THE AIRCRAFT WAS APPROACHING AND THEN; HAD REACHED THE DEPARTURE PROCEDURE ALTITUDE OF 1500 FEET. THE CO-PILOT FAILED TO REACT QUICKLY ENOUGH; REDUCING THE POWER AND LOWERING THE NOSE; WHICH ALLOWED THE MOMENTUM OF THE AIRPLANE TO CARRY IT THROUGH THE DEPARTURE PROCEDURE ALTITUDE BY 300 FEET. I IMMEDIATELY ASSISTED THE CO-PILOT BY REDUCING THE POWER AND HELPING TO LOWER THE NOSE TO INITIATE A QUICK CORRECTION BACK TO THE DEPARTURE PROCEDURE ALTITUDE OF 1500 FEET. WE BRIEFED THE DEPARTURE PROCEDURE SEVERAL TIMES INCLUDING ONCE BEFORE BEING CLEARED FOR TAKEOFF; SO I DO NOT FEEL THAT PREPARATION WAS THE ISSUE. THE MAJOR FACTOR CONTRIBUTING TO THIS EVENT WAS PROBABLY THE CO-PILOT'S LACK OF RECENT EXPERIENCE IN THE AIRPLANE WHICH LED TO HIS SLOW REACTION TO THE APPROACHING ALTITUDE LIMIT. IN ALL; I FEEL OUR REACTION WAS APPROPRIATE; QUICKLY RETURNING THE AIRCRAFT TO THE APPROPRIATE ALTITUDE OF 1500 FEET WITHIN A MATTER OF 15 TO 30 SECONDS. I THINK TO PREVENT THIS FROM HAPPENING AGAIN IN THE FUTURE WE CAN DO A COUPLE OF THINGS. THE FIRST WOULD BE TO BRIEF OURSELVES IN DETAIL OF EXACTLY WHAT WE ARE GOING TO DO ON THE DEPARTURE INCLUDING REDUCING THE POWER EARLY ALONG WITH A MORE SHALLOW CLIMB RATE. THE SECOND THING WOULD BE TO CONSIDER ENGAGING THE AUTOPILOT WHEN CLIMBING THROUGH A THOUSAND FEET; WHICH IN THIS CASE WOULD HAVE PREVENTED OUR ALTITUDE DEVIATION.