<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE COMPANY'S
UNAUDITED QUARTERLY FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000927355
<NAME> TESSCO TECHNOLOGIES INCORPORATED
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-01-2001
<PERIOD-START> MAR-27-2000
<PERIOD-END> SEP-24-2000
<EXCHANGE-RATE> 1
<CASH> 0
<SECURITIES> 0
<RECEIVABLES> 31,557,400
<ALLOWANCES> 923,000
<INVENTORY> 37,770,200
<CURRENT-ASSETS> 71,078,600
<PP&E> 28,699,600
<DEPRECIATION> 10,223,500
<TOTAL-ASSETS> 92,703,600
<CURRENT-LIABILITIES> 40,588,900
<BONDS> 6,938,100
0
0
<COMMON> 48,300
<OTHER-SE> 44,666,400
<TOTAL-LIABILITY-AND-EQUITY> 92,703,600
<SALES> 129,124,600
<TOTAL-REVENUES> 129,124,600
<CGS> 94,321,100
<TOTAL-COSTS> 94,321,100
<OTHER-EXPENSES> 28,399,900
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 962,900
<INCOME-PRETAX> 5,440,700
<INCOME-TAX> 2,067,500
<INCOME-CONTINUING> 3,373,200
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 3,373,200
<EPS-BASIC> 0.75
<EPS-DILUTED> 0.71
</TABLE>