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309, 409 Series 43, RA20 Series
Description
• 309: compact modular house
• 409: sealed for board washing
RA20 meets MIL-R-19
Expected rotational life 25 k cycles 10 k cycles
Element type cermet wirewound
Power rating 1 W 2 W
Termination PC, solder hook solder lug
Resistance range 100 Ohm to 5 MOhm
43: 10 Ohm to 50 kOhm
RA20: 50 Ohm to 15 kOhm
Housing material thermoplastic polyester stainless steel
Bushing
1/4-32 NEF-2A, 3/8-32 NEF-2A;
nickel-plated brass; standard
3/8-32 NEF-2A;
stainless steel, standard, locking
Shaft
Ø3,18 mm [0.125 in], Ø6,35 mm [0.250 in];
nickel-plated brass
various diameters;
nickel plated brass
Electrical taper linear linear
Cermet and
Wirewound Pots
58, RA30 Series 591 Series 73 Series
Description RA30 meets MIL-R-19 multiple sections available 10-turn construction
Expected rotational life 25 k cycles 25 k cycles 50 k cycles
Element type wirewound cermet wirewound
Power rating 4 W 1 W 2 W
Termination solder lug PC, solder hook solder lug
Resistance range
58: 50 Ohm to 50 kOhm
RA30: 25 Ohm to 25 kOhm
500 Ohm to 100 kOhm 100 Ohm to 100 kOhm
Housing material stainless steel thermoplastic polyester glass-lled nylon
Bushing
3/8-32 NEF-2A;
stainless steel; standard, locking
3/8-32 NEF-2A;
nickel-plated brass; standard
3/8-32 UNEF-2A;
nickel-plated brass; standard
Shaft
various diameters;
nickel-plated brass
Ø3,18 mm [0.125 in];
nickel-plated brass
Ø6,35 mm [0.25 in];
stainless steel or glass lled nylon
Electrical taper linear linear linear
Cermet and
Wirewound Pots