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| Probe Specifications |
| Mechanical |
| Full Travel: |
.250 (6.35) |
Recommended
Working Travel: |
.167 (4.24) |
| Mechanical Life Exceeds: |
2 x 106 cycles |
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| Operating Temperature |
| Standard spring: |
-55°C to +85°C |
| Alternate spring: |
-55°C to +150°C |
| Consult factory for other temperature requirements, and applications below -40° |
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| Electrical (Static Conditions) |
| Current Rating: |
7 amps |
| Maximum continuous current, non-inductive at working travel |
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| Probe Resistance |
50 milliohms |
| With a standard deviation of <7 milliohms @ 25 mA test current |
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| Materials and Finishes |
| Plunger: |
Heat-treated beryllium copper, rhodium plated over hard nickel |
| Barrel: |
Work-hardened nickel silver, gold plated over hard nickel |
| Spring - Standard: |
Beryllium copper |
| Spring - Alternate: |
Stainless steel |
| Ball: |
Brass, gold plated |
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| Receptacle Specifications |
| Mounting Hole Size: |
.107/.109 (2.72/2.77) |
| A 2.75 mm drill is most commonly used |
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| Recommended Wire Gauge: |
22-26 AWG |
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| Connections: |
SPR-4W Crimp or push-on termination (AMP terminal 61260-1 or equivalent)
SPR-4W-1 Solder cup
SPR-4W-2 wire wrap/square post
SPR-4Y Push-on termination (AMP terminal 60908-1 or equivalent)
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| Materials and Finishes |
| Housing: |
Work-hardened nickel silver, gold plated |
| Square Post: |
Phosphor bronze, gold plated |
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SPA-4
Test Center .187 (4.80)
Tips
Spring Force
Connectors
How to Order
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Tips (top)
Spring Force (top)
| Spring Force in 0z. (grams) |
| Spring Type |
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Preload |
2/3 Travel |
| To order add dash number to Model Number |
| Standard |
Shown |
2.2 (62) |
4.8 (136) |
| Alternate |
-1 |
3.2 (90) |
6.9 (196) |
| Optional spring forces and materials are available |
Connectors (top)
How to Order (top)
For each probe, specify the probe model and tip style as shown in the example below. If required, specify the optional non-standard spring force.
Example:
Order Form
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©1998-2003 Everett Charles Technologies. All rights reserved. Everett Charles Technologies, 700 E. Harrison Ave., Pomona, CA, 91767, U.S.A.
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