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HSI SWITCH COMPARISON
 
SWITCH SERIES - ENVIRONMENTALLY & HERMETICALLY SEALED SWITCHES

 

Temperature Range

Shock

Vibration

Mil-Spec

6100

-85°F to +300°F (-65°C to +149°C)
400°F (+204°C)**

100g for 6 ± 1 ms

10 - 2000 Hz ± 20g peak

MIL-S-8805

6200

-65°F to +660°F (-54°C to +349°C) intermittent
-320°F to +800°F (-195°C to +427°C) intermittent

100g for 6 ± 1 ms

High Vacuum (negative) to 50 PSI (positive) 3.5 atm

MIL-PRF-8805

6300

-85°F to +300°F (-65°C to +149°C)
-85°F to +500°F (-65°C to +265°C)**
or down to -320°F (-196°C)**

100g for 6 ± 1 ms

10 - 2000 Hz ± 20g peak
(50g by Special Order)

MIL-PRF-8805

6600

-65°F to +400°F (-54°C to +204°C) continuous

100g for 6 ± 1 ms

10 - 2000 Hz ± 20g peak

 

6700

-65°F to +300°F (-54°C to +149°C) continuous

100g for 6 ± 1 ms

10 - 2000 Hz ± 20g peak

 
SWITCH SELECTION GUIDE

Sealing
In low current applications the slightest amount of contamination can result in an intermittent signal since the low current cannot penetrate even the smallest amount of contamination.  Consequently lower currents require better sealed and cleaner switches.  As a rule of thumb - HSI recommends hermetically sealed switches with gold contacts for any application with currents under 1 amp.

Contact Material
While Silver provides the best conductive properties for contact material it is also susceptible to the creation of sulfide and oxide films.  For this reason Gold alloy material is used for lower energy circuits.  Platinum base contact material is used for higher energy circuit applications at elevated temperatures. 

 
SWITCH CONTACT MATERIAL / CURRENT GUIDELINES

Contact Material

Voltages

Resistive

Inductive

MIN

MAX

MIN

MAX

Silver

28 VDC

1 Amp

5 Amps

0.5 Amps

3 Amps

Gold Alloy

28 VDC

< 1 mAmp

2 Amps

< 1 mAmp

0.5 Amps

Platinum

28 VDC

1 Amp

5 Amps

0.5 Amps

3 Amps

 
SWITCH TEMPERATURE GUIDELINES

 

 

-320°F

-85°F

-65°F

+300°F

+400°F

+500°F

+660°F

+700°F

+900°F


Unsealed

6100

 

X

 

X

6200

X

   

X


Environmentally Sealed

6100

 

X

 

X

       

6700

 

X

 

X

       

Hermetically Sealed

6200

X

 

X

 

6300

X

   

X

     

6600

           

X = Available as Special Options

 
TYPICAL SWITCH CONTACT COMBINATIONS

 

 

 

Silver

Gold

Platinum


Unsealed

6100

X

 

X

6200

 

 

X


Environmentally Sealed

6100

X

X

 

6700

X

X

 


Hermetically Sealed

6200

 

X

X

6300

X

X

 

6600

X

X