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  Power Transistor Outline (TO) Packages


Common uses for these packages include high-power and high voltage devices, MOSFETs, high-power diodes, power rectifiers and IGBT devices to name just a few. These packages have excellent thermal properties from Cu/W heat sinks that can include BeO and ALN inserts; isolating the case if needed. Packages meet Military and Space specifications.

There are a number of common open tooled designs such as TO254, TO257 and TO258. These are often available with little or no lead time. Package frames are typically Kovar or CRS 1010 with bases constructed of OFHC copper or Cu/W (80/20). Common pin materials include copper cored Alloy 52 or Cu/Zr with a variety of finishes.

Advantages of Power Transistor Outline (TO) Packages:

  • Large variety of available outlines
  • Full Hermiticity 1x10-8
  • Metal seal ring for seam sealing
  • Ceramic eyelets for higher reliability and performance (glass eyelets available upon request)
  • Brazed BeO or ALN for isolated case

 

 

All dimensions are in inches unless otherwise specified
SSM P/NLEAD COUNTPART TYPEMFG DRW NOCAVITY SIZE (W)CAVITY SIZE (L)PKG OD (L)PKG OD (W)S/R OD (L)S/R OD (W)S/R ID (L)S/R ID (W)B/F LAYOUTLEAD CONFIGRECOM LIDCOMMENTSPDFREQ.QUOTE
HDR066042PWR PKG TO-66 N/A NH PWR PKG TO-66 OUTLINE Req.Quote
HDR254033PWR PKG TO-254 SQHV540-250-3 0.440.440.540.54 SL-54001 PWR PKG TO-254 OUTLINE Req.Quote
HDR254043PWR PKG TO-254 SD-570-A460 OPT P007 0.3960.3960.7950.540.540.540.440.44ALO PWR PKG TO-254 OUTLINE VIEWReq.Quote
HDR254063PWR PKG TO-254 150-00058-00 REV A 0.4390.4390.7950.540.540.540.4390.439ALO SL-54001 PWR PKG TO-254 OUTLINE VIEWReq.Quote
HDR254083PWR PKG TO-254 150-00533-00 REV C 0.4390.4390.540.540.540.540.4390.4392 + 1 SL-54001 PWR PKG TO-254 OUTLINE VIEWReq.Quote
HDR254103PWR PKG TO-254 150-01346-00 REV A 0.4390.4390.540.540.540.540.4390.4393+0 SL-54001 PWR PKG TO-254 OUTLINE - TABLESS VIEWReq.Quote
HDR254113PWR PKG TO-254 BP1313 0.440.440.7950.540.540.540.440.44 SL-54001 PWR PKG TO-254 OUTLINE VIEWReq.Quote
HDR257043PWR PKG TO-257 BP1010 0.3280.3280.4150.4150.4150.4150.3290.3293+0 STRT POST SL-41403 PWR PKG TO-257 OUTLINE VIEWReq.Quote
HDR257063PWR PKG TO-257 150-01154-00 REV A 0.4170.4170.4170.4170.3260.3263+0 STRT POST SL-41403 PWR PKG TO-257 OUTLINE VIEWReq.Quote
HDR257073PWR PKG TO-257 SQ-415-650-025-3 0.2860.3310.4170.4170.4170.4170.3290.3293+0 STRT POST SL-41403 PWR PKG TO-257 OUTLINE VIEWReq.Quote
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