Shrink Small Outline Package (SSOP)

The SSOP package is a smaller or 'shrunk' version of the SOIC package, having a  compressed body and a tightened lead pitch. Lead count ranges from 8 to 64. SSOP body sizes come in 150, 209 and 300 mils. The SSOP package is JEDEC- and EIAJ- compliant. The package leads are solder plated.

Table 1. Properties of some SSOP's

Thin Small Outline Package (TSOP)

The TSOP package is rectangular with a thickness of 1.0mm. There are two types of TSOP's. The Type I TSOP has its leads protruding from the shorter edges of the package. The Type II TSOP has its leads protruding from the longer edges of the package. TSOP lead count ranges from 20 to 48. TSOP packaging is in JEDEC trays or tape and reel (quantities may vary).

Table 2a. Properties of some Type 1 TSOP's

Part Number	No. of Pins	Body Size	Lead Pitch	Qty Per Tray	Tape Width	Tape Pitch	Qty 13" Reel
TSOP20/24	20/24	6 x 14.4mm	.5mm	240	24mm	12mm	1,000
TSOP28	28	8.1 x 11.8mm	.55mm	234	24mm	12mm	1,000
TSOP28/32	28/32	8 x 18.4mm	.5mm	156	32mm	12/16mm	1,000
TSOP40	40	10 x 18.4mm	.5mm	120	32mm	16mm	1,000
TSOP48	48	12 x 18.4mm	.5mm	96	32mm	16mm	1,000

Table 2b. Properties of some Type 2 TSOP's

Part Number	No. of Pins	Body Size	Lead Pitch	Qty Per Tray	Tape Width	Tape Pitch	Qty 13" Reel
TSOP20/24/26	20/24/26	7.6 x 17.14mm	1.27mm	176	24mm	12mm	1,000
TSOP24/28	24/28	10.16 x 18.41mm	1.27mm	100	32mm	16mm	1,000
TSOP32	32	10.16 x 20.95mm	1.27mm	117	32mm	16mm	1,000
TSOP40/44	40/44	10.16 x 18.42mm	.8mm	135	32mm	16mm	1,000
TSOP50	50	10.16 x 20.95mm	.8mm	117	32mm	16mm	1,000
TSOP54	54	12.7 x 22.22mm	.8mm	84	44mm	20mm	1,000
TSOP66	66	10.16 x 22.22mm	.65mm		44mm	20mm	1,000

Thin Shrink Small Outline Package (TSSOP)

The TSSOP package has a smaller body and smaller lead pitch than the standard SOIC package. The TSSOP come in body sizes of 3.0mm, 4.4mm and 6.1mm with a thickness of 0.85 mm for the 3.0-mm body and a thickness of 9mm for the 4.4 mm- and 6.1-mm bodies. Lead count ranges from 8 to 56. Its standard lead pitch is 0.65mm. This package type is JEDEC-compliant. The table below shows a partial list of TSSOP package options.

Table 3. Properties of some TSSOP's