NTE-ELECTRONICS–INC–RLY3920
| Part # | NTE-ELECTRONICS–INC–RLY3920 |
Download  | NTE-ELECTRONICS–INC–RLY3920 |
PC Mount Relays
Miniature, PC Mount, 2 Amp,
Multicontact Relays.
R
L
Y
39 Series
Features
1.090 (27.69)
D74
Epoxy Sealed
Low Profile
.460
(11.68)
Immersion Proof
.150 (3.81)
.040 (1.02)
.100 (2.54)
.590
(14.99)
.400
(10.16)
.200
(5.08)
.090 (2.29)
.900 (22.86)
.090 (2.29)
1.090 (27.69)
D74a
.460
(11.68)
SPD
T
, 1
F
orm “C”
DPD
T
, 2
F
orm “C”
(Bottom View)
(Bottom View)
.150 (3.81)
.040 (1.02)
.100 (2.54)
.890
(22.61)
.700
(17.78)
.300
(7.62)
.090 (2.29)
.900 (22.86)
.090 (2.29)
DC OPERATED
Coil
Res.
Ohms
(Typ)
Max.
Approx.
Nom.
Contact
Cur. @
24VDC
Nom.
Volt.
Contact
Arr.
Diag
No.
Electrical Specifications
NTE Type No.
RLY3920
Power
5VDC
12VDC
24VDC
12VDC
24VDC
SPDT
SPDT
SPDT
DPDT
DPDT
75
750mW
750mW
750mW
750mW
750mW
2A
2A
2A
2A
2A
D74
D74
Contact
RLY3922
440
Rating:
2 Amp @ 24 VDC
Material:
Gold Clad Silver Palladium
Resistance:
100m Max
RLY3923
1550
440
D74
RLY3942
D74a
D74a
Coil
RLY3943
1550
Coil Voltages:
See Chart
Pick
−
up Voltages:
80% of nominal voltage or less
Drop
−
out Voltages:
10% of nominal voltage or more
Max. Allowed Voltage:
120% of nominal voltage, duty cycle 100%
Nominal Power:
327mW max. min. sensitivity:
200mW
Resistance:
See Chart
When soldering the relay to the PC board, solder temperature must not
exceed +270 C, and solder time must not exceed 5 seconds. If
necessary to hold the relay in place during soldering, the terminals of
the coil and movable contact arm may be slightly bent after insertion
through the board holes.
Operational Characteristics
Timing Value:
. . .
Operate Time:
4 mS max
Release Time:
10 mS max
CAUTION: Do
not bend the terminals of the stationary contact
arms, as this may alter contact adjustment.
Insulation Characteristics
The polyester cover of the relay is bonded to the relay base, but is not
hermetically sealed. Therefore, if the board on which the relay is
soldered is to be cleaned by immersion, cleaning time
must not exceed
two minutes. If fluorocarbons, chlorinated or hydrocarbon cleaning
solutions are used, the temperature of the solution must not exceed
+77 C. If aqueousorganic solutions are used, temperature must not
exceed +80 C.
Dielectric Strength
Between All Mutually Insulated Points:
500 VAC/1 minute
Insulation Resistance:
1000M Min.
@ 500 VDC
Environmental Characteristics
Operating:
−
35 C to +70 C
Life
Mechanical:
100 million operations (no load)
Electrical:
100,000 operations (under rated load)
After board cleaning, the tape on the top of the relay must be
punctured before the relay is put into service.
If the tape is not
punctured, any normal outgassing could result in excessive contact
resistance at load currents of less than the contact rating.
Weight
Std:
SPDT
−
5.5 grams (approx.);
DPDT
−
9.0 grams (approx)
43
