SMT & THRU HOLE
BARE AND LOADED BOARD TEST PROBES

SERIES 44

.075 (1.91) CENTERS/.050 (1.27) STROKE  

Tool Bar

Probe Technical Data
Mechanical
MINIMUM CENTERS:
.075 (1.91)
FULL TRAVEL: .050 (1.27)
OPERATING LIFE: 1,000,000 cycles

Electrical
MAXIMUM CURRENT:
3 amps continuous
at working travel, non-inductive
RESISTANCE: At 35 mA test current,
35 mOHMS mean

Materials and Finishes
PLUNGER:
Heat treated beryllium
copper, 24 Kt gold plated over nickel
BARREL: Nickel Silver with 24 Kt gold
plated ID and OD over nickel
SPRING: Music wire
Spring Force +/- 20% oz. (grams)

Spring Type 

Preload 

@ 2/3 Travel 

Standard 

1.1 (32) 

2.2 (62)

-1 

1.6 (45) 

3.2 (91) 

   
     
     
 

 

Tool Bar

Receptacle Technical Data

The top of the barrel sets flush with the
top of the receptacle.
MOUNTING HOLE SIZE: .055
(1.4) diameter, #54 (1.4 mm) drill
WIRE GAUGE: 24 - 28 AWG
CONNECTIONS:
R40-1/R40FL-1
Crimp
R40-2/R40FL-2 Wire wrap
R40-3/R40FL-3 Solder cup
R40-5/R40FL-5 Wire wrap

Materials and Finishes
RECEPTACLE:
Nickel silver,
with 24 Kt gold plate
WIRE WRAP PIN: Phosphor Bronze,
24 Kt gold plate over nickel

To Order
PROBE:
Select tip style and spring force
EXAMPLE: 44-A has a cup style tip
with a 2.2 oz. (62 grams) spring
44-A-1 has a 3.2 oz. (91 grams) spring
RECEPTACLE:
Order part number as shown
INSERTION TOOL:
IT40/44
Flush
CRIMP TOOL 24-28 AWG
CT40

 

PART NO. 

DIM. "A" 

DIM. "B" 

R40-2/R40FL-2 

1.06 (26.92) 

.370 (9.40) 

R40-5/R40FL-5 

.950 (24.13) 

.260 (6.60)