NTE Electronics R42 Series Catalog Page

Features

• 5 VDC Version Compatible to Operate Directly from TTL or

DTL Circuits

• Internal Clamping Diode

• Flame Retardent Epoxy Package

• PC Mountable

R42 Series

General Purpose, 500mA DC
SPST−NO SIP Reed Relay.

D20

NTE
Type

No.

R42−1D .5−6 5/6

R42−1D .5−12 12

R42−1D .5−24 24

Nom.

Voltage

VDC

VDC

VDC

DC OPERATED

Coil

Arr.

Res.

Ohms

(Typ)

Nom.

Pwr.

Cont.

Contact

SPST−NO500 50mW.5

SPST−NO850 77mW.5

SPST−NO2200 180mW.5

Max.

Pick

up

3.8

VDC

Min.

Drop

out

0.5

VDC

Max.

Amp

Amp9VDC1VDC

Amp18VDC2VDC

Diag

No.

D20

D20

D20

.810 (20.57) Max .270 (6.86)

.280

Pin

#3 +

Input Output

1357

.200 (5.1)

Typ

.600 (15.2)

(7.11)

.125

(3.17)

Min

.340
(8.6)
Max

.110 (2.79)

Max

Typ

Electrical Specifications

Contact

Rating: 0.5 Amp switching current max.

1.5 Amp carry current max.

Resistance: 200 milliohms max. initial

Coil

Coil Voltages: See Chart
Pick−up Voltage: See Chart
Drop−out Voltage: See Chart

Operational Characteristics

Timing Values Operate Time: 330 µS at nominal voltage. . . . .

Insulation Characteristics

Dielectric Strength

Environmental Characteristics

Operating: −45°C to +85°C
Storage: −60°C to +105°C

Capacitance

Across Open Contacts: 1pf
Open Contacts To Coil: 2pf

Life

Mechanical: 5 x 106 (50,000,000) with appropriate contact

protection

Release Time: 150 µS at nominal voltage

Across Open Contacts: 200 VDC
Contact To Contact: 1000 VDC

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NTE Electronics, Inc. D Voice (973) 748−5089 D FAX (973) 748−6224 D http://www.nteinc.com