What’s TSSOP?
The Thin Shrink Small Outline Package, or TSSOP, is a rectangular surface mount plastic package with gull-wing leads. It has a smaller body and smaller lead pitch than the standard SOIC package. It is also smaller and thinner than a TSOP with the same lead count.
The TSSOP come in body sizes of 3.0mm, 4.4mm and 6.1mm. The 3.0mm TSSOP body has a typical thickness of 0.85mm while the 4.4mm and 6.1mm bodies have a typical thickness of 0.9mm. TSSOP lead counts range from 8 to 56. The standard lead pitch used by TSSOP is 0.65mm. This package type is JEDEC compliant. The table below shows a partial list of TSSOP package options.
Properties of Some TSSOPs
| Part Number | No. of Pins | Body Width | Pitch | Tape Width | Tape Pitch | Qty per Tube | Qty per Reel |
| TSSOP8/10 | 8/10 | 3.0mm | .65mm | 12mm | 8mm | 98 | 2,500 |
| TSSOP14 | 14 | 4.4mm | .65mm | 12/16mm | 8mm | 96 | 1,000/2,500 |
| TSSOP28 | 28 | 4.4mm | .65mm | 16mm | 8/12mm | 50 | 1,000 |
| TSSOP28/32 | 28/32 | 4.5mm | .65mm | 24mm | 12mm | 50/44 | 1,000 |
| TSSOP38 | 38 | 6.1mm | .65mm | 24mm | 12mm | 39 | 1,000 |
| TSSOP48/56 | 48/56 | 6.1mm | .5mm | 24mm | 12mm | 39/35 | 1,000 |
| TSSOP56 | 56 | 4.4mm | .4mm | 24mm | 12mm | 42 | 1,000 |
| TSSOP64 | 64 | 6.1mm | .5mm | N/A | N/A | 28 | N/A |
| TSSOP80 | 80 | 6.1mm | .4mm | N/A | N/A | 28 | N/A |
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