89522 DELT 2900 Sell Sheet 2/17/05 1:00 PM model Page 2 2900 ULTRA MINIATURE PUSH BUTTON t e c h n i c a l d a t a s h e e t > features < Very small – 1.9 mm in diameter Overtravel design: switch makes contact before driver is fully depressed Designed for mechanically actuated applications Gold-plated flexible leads SPST normally open > specifications < Mechanical Data Environmental Data Switch Operation Force . . . . . . . . . . . . . >30 cN <90 cN Pull Strength of Terminals. . . . . . . . . . . . . . . . . >500 cN Bending of Terminals . . . . . >2 cycles 90º; min. 0.5 mm (0.02 in.) from base/housing Life Cycle Expectancy . . . . . . . . . . . . . . . 100,000 cycles Solderability . . . . . . . . . . . . . 260ºC/(500ºF) for 3 sec. or 315ºC/(600ºF) for 1 sec. Storage Temperature . . . . . . . . . . . . . . . . . -40ºC to 60ºC Operating Temperature . . . . . . . . . . . . . . . -10ºC to 55ºC Electrical Data Switch Contact Resistance . . . . . . . . . . . . . . . <150 mΩ Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . >1 MΩ Max. Continuous Current . . . . . . . . . . . . . . . . . . 500 mA Construction Contact Material . . . . . . . . . . Gold-plated copper alloy Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Polyamide Terminal . . . . . . . . . . . . . . . . . . . . . . . Silver, gold-plated Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless steel Specifications subject to change. +1-630-250-5100 1151 Maplewood Dr. Itasca, IL 60143 USA ELECTRONICS 89522 DELT 2900 Sell Sheet 2/17/05 12:59 PM Page 1 2900 U L T R A model MINIATURE PUSH BUTTON dimensions Dimensions shown in millimeters (inches in parentheses). II Ø 2,1 ± 0,05 (.0827 ± .0019) Ø 0,9 ± 0,05 (.0354 ± .0019) +0,01 -0,05 +.0003 -.0019 1 (.0394 driver style [ 1 ] STANDARD [ 2 ] WITH MUSHROOM CAP [ X ] SPECIAL ) 1,1 ± 0,01 (.0433 ± .0003) 1,9 ± 0,01 (.0748 ± .0003) BOTTOM VIEW Ø 1,9 (.075) 0,46 (.018) 1,14 (.045) Ø 1,9 ± 0,05 (.0748 ± .0019) MUSHROOM CAP SIDE VIEW (SHOWN WITH STANDARD DRIVER) PARAMETER I II III IV ELECTRONICS II X sp ec ial co lo r er iv dr I X 2900 st yle st dy bo m od el How to order— Using the chart below, determine your order number by finding the correct sequence of code numbers and /or letters as shown at right. Details on each parameter can be found within the brochure in the section with the corresponding roman numeral. yle > ordering < III XX YOUR CHOICE IV XX GUIDELINES/NOTES [ F] Flanged [U] Flangeless body style driver style color Standard colors available: 00, 03, 10, 13, 14, 16, 18, 20, 21, 22, 23, 24, 25, 36. Additional colors available, see Color Chip Chart in Appendix. special [ S] Standard [XX] Special 1151 Maplewood Dr. Itasca, IL 60143 USA +1-630-250-5100 2/05