Reed Relays, R42 Series

Features VDC versions compatible to operate directly from TTL or DTL circuits Internal clamping diode Flame retardent epoxy package PC mountable

Electrical Characteristics Contact
Contact Rating: 0.5 Amp switching current max.
1.5 Amp carry current max.
Contact Resistance: 200 milliohms max. initial

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

Operational Characteristics
Timing Value:
             Operate Time: 330 µS at nominal voltage
             Release Time: 150 µS at nominal voltage

Insulation Characteristics
Dielectric Strength:
             Contact to Contact: 1000 VDC
             Across Open Contacts: 200 VDC

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

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Dimensional Drawings

D20

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Part Numbers

DC OPERATED
NTE Type No.	Nom. Voltage	Contact Arr.	Coil Res. Ohms Typ	Nom. Power	Max. Cont.	Max. Pick Up	Min. Drop Out	Diag. No.
R42-1D.5-6	5/6VDC	SPST-NO	500	50mW	0.5A	3.8VDC	0.5VDC	D20
R42-1D.5-12	12VDC	SPST-NO	1870	77mW	0.5A	9VDC	1VDC	D20
R42-1D.5-24	24VDC	SPST-NO	3200	180mW	0.5A	18VDC	2VDC	D20

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