90B02ST Datasheet, PDF (2/2 Pages) Grayhill, Inc – Thru-Hole DIP Switches

Thru-Hole DIP Switches
Specifications: Standard Styles
Ratings
Mechanical Life: Operations per switch position
Make-and-break Current Rating: Operations
per switch position at these resistive loads
1 mA, 5 Vdc; 50 mA, 30 Vdc; or 150 mA, 30 Vdc:
10 mA, 30 Vdc; or 10 mA, 50 mVdc:
10 mA, 50 mVdc; or 25 mA, 24 Vdc; or 100 mA, 6 Vdc:
Contact Resistance: Initially:
After life, at 10 mA, 50 mVdc, open circuit:
Insulation Resistance:
Minimum, at 100 Vdc between adjacent closed
contacts and also across open switch contacts
  Initially (Mohms):
  After life (Mohms):
Dielectric Strength: Minimum voltage (AC,
RMS) measured between adjacent closed
contacts and also across open switch contacts.
  lnitially:
  After life:
Current Carry Rating: Maximum rise of 20°C
Switch Capacitance: At 1 megahertz
Operating Temperature Range:
Storage Temperature Range:
76
2,000
2,000
—
—
≤ 30 mΩ
≤ 100 mΩ
78
2,000
2,000
—
—
≤ 30 mΩ
≤ 100 mΩ
90B
2,000
—
2,000
2,000
≤ 20 mΩ
≤ 100 mΩ
5,000
1,000
5,000
1,000
5,000
1,000
750 V
500 V
5A
2 pF
-40°C to + 85°C
-55°C to + 85°C
750 V
500 V
4A
2 pF
-40°C to + 85°C
-55°C to + 85°C
500 V
500 V
3A
2 pF
-40°C to + 85°C
-55°C to + 85°C
Mechanical Ratings
Vibration Resistance: Per Method 204, Test
Condition B, 1 mS opening (10 mS allowed)
Mechanical Shock: Per Method 213, Test
Condition A. 1 mS opening (10 mS allowed)
Thermal Shock Resistance: Per specification;
no failures; passes contact resistance.
Terminal Strength: Per specification
Thermal Aging: 1,000 hours at 85°C; no failures.
Environmental Ratings
Meets all requirements of MIL- S-83504.**
Where Grayhill performance is superior, the MIL
spec is listed in parentheses.
Moisture Resistance: Per MIL-STD-202,
Method 106.
Soldering Information
Series 90 MIDIP and Series 76 recessed rocker
(76RSB style) sealed switches have been tested
to EIA Standard RS-448-2. Similar performance
can be expected from other sealed Series 76
and 78 DIP switches.
Solderability: Per MIL-STD-202, Method 208
Resistance to Soldering Heat: 76RSB:
Passes EIA Standard using two, four, and six
second soldering time. 90: Per MIL-S-83504,
six second test.
Fluxing: Per EIA RS-448-2 with flux touching
switch body.
Cleaning: 76, 78 and 90 series tape sealed
products: Passes immersion test using water/
detergent. Acceptable solutions include 1-1-1
trichlorethane, freon, (TF, TE, or TMS), isopropyl
alcohol, detergent (140°F maximum). Terpene
acceptable for Series 90 only.Solutions which are
not recommended include acetone, methylene
chloride, freon TMC.
Materials and Finishes
Shorting Member (Ball): Brass, gold-plated
over nickel barrier.
Base Contacts: Copper alloy, gold-plated
over nickel barrier.
Terminals: Copper alloy, matte tin plated over
nickel barrier.
Non-Conductive Parts: Thermoplastic
(UL94V-O)
Potting Material: Epoxy, 76,78 only.
Protective Cover: 76,78, only-Polycarbonate.
Tape Seal:
76, 78: Polyester film
90: Polyimide film
Tape Seal Integrity: Passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
Reflow Soldering
Profile:
(260°C
Peak Temperature)
Recommended Soldering Conditions:
Wave Soldering: 260°C maximum solder temperature for 5 seconds max.
** Note: 100% matte tin terminal plating does not meet MIL-S-83504 for lead content.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com
DIP
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