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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Coto |
| Manufacturer Product Number | 7121-05-1101 |
| Description | Reed Relay; 1 Form B; 1; 5 V DC; 10 W max; 200 V DC/peak AC max |
| Datasheet | Download Datasheet |
The Coto 7121-05-1101 is a 1 Form B reed relay with a 5 V DC coil.
Coil resistance 150 ohm +/-10% at 25 C; must operate 3.75 V DC max; must release 0.4 V DC min.
It switches up to 10 W max: switching voltage 200 V DC/peak AC max; switching current 0.5 A max; carry current 2.0 A max.
Breakdown voltage: 250 V DC/peak AC min.
Internal diode: yes (coil suppression, pin 1 +); electrostatic shield: no; operate time 1.0 ms typ including bounce; release time 0.1 ms typ.
Package: Potted metal shell (magnetic shield), SIP-style pin rows on 0.100 in grid; mounting: through hole (PCB), 1.0 x 0.100 in grid, .026 in dia pins, .125 in typ length; size 1.19 x .500 x .375 in (30.23 x 12.70 x 9.52 mm) L x W x H; width code B.
It operates from -20...+85 °C.
| Category | |
| Manufacturer | Coto |
| Contact Form | 1 Form B |
| Number of Poles | 1 |
| Coil Voltage | 5 V DC |
| Coil Resistance | 150 ohm +/-10% at 25 C |
| Must Operate Voltage | 3.75 V DC max |
| Must Release Voltage | 0.4 V DC min |
| Switching Power | 10 W max |
| Switching Voltage | 200 V DC/peak AC max |
| Switching Current | 0.5 A max |
| Carry Current | 2.0 A max |
| Breakdown Voltage | 250 V DC/peak AC min |
| Operate Time | 1.0 ms typ including bounce |
| Release Time | 0.1 ms typ |
| Internal Diode | Yes (coil suppression, pin 1 +) |
| Electrostatic Shield | No |
| Package | Potted metal shell (magnetic shield), SIP-style pin rows on 0.100 in grid |
| Mounting / Termination | Through hole (PCB), 1.0 x 0.100 in grid, .026 in dia pins, .125 in typ length |
| Dimensions | 1.19 x .500 x .375 in (30.23 x 12.70 x 9.52 mm) L x W x H; width code B |
| Operating Temperature | -20...+85 |
| Storage Temperature | -35...+100 |
| Contact Type | Dry reed |
| Coil Termination | Same end |
| Coil Type | Polarized (bias magnet): correct coil polarity must be observed |
| Life Expectancy | 1000 x 10^6 operations typical (1.0 V, 10 mA) |
| Capacitance (Across Open Contacts) | 1.0 pF typ (no shield); 0.2 pF typ (shield guarding) |
| Shock | 50 G |
| Vibration | 20 G to 2000 Hz |