1JB75-1 Miniature Magnetic Latching Relays
Environmental Characteristics
| No | Parameter | Environmental Specification | |||
| 1 | Quality Grade | Ⓙ,(G) | Aerospace | ||
| II | IV | ||||
| 2 | Temperature Range | (℃) | -55～85 | ||
| 3 | Relative Humidity | (40±2) ℃，90%～95% | |||
| 4 | Low Pressure | (kPa) | 2.5 | ||
| 5 | Sinusoidal Vibration | (Hz) | 10～2000 | ||
| (m/s2) | 147 | 196 | |||
| 6 | Random Vibration | ((m/s2)2/Hz) | 30 | 20 | |
| 7 | Shock | (m/s2) | 490 | 735 | 980 |
| 8 | Constant Acceleration | (m/s2) | 490 | 735 | 490 |
Main Characteristics
| Contact Arrangement | Primary: 1PDT
Secondary: 1PDT |
Operating Time (ms) | ≤35 | ||
| Coil Power (W) | 5.8 | Release Time (ms) | – | ||
| Leak Rate (Pa.cm3/s) | ≤1×10-3 | Load Ratings | Resistive | Primary: 75A, 28 Vd.c.
Secondary: 2A, 28 Vd.c. |
|
| Contact Resistance(Ω) | Initial | Primary ≤0.005
Secondary ≤0.03 |
Low Level | 10 A～50A, 10 mV～50 mV | |
| After Life | Primary ≤0.01
Secondary ≤0.1 |
Life Time (Cycles) | 2×104 | ||
| Insulation Resistance (MΩ) | Normal | ≥500 (500 Vd.c.) | Overload Rating | Resistive, 150A, 28 Vd.c. | |
| High Temp./ Humidity | ≥10 (500 Vd.c.) | ||||
| Dielectric Strength
(50Hz) |
Normal | 500 Vr.m.s | Weight(g) | ≤170 | |
| Low pressure | 250 Vr.m.s | ||||
Electrical Specification (V d.c.)
|
Specification No. |
Coil Voltage | 25℃ | Overall Temperature Range | ||||
| Normal | Max | Coil resistance (Ω)
(1±10%) Ω |
Operating Voltage (max) | Release Voltage (min) | Operating Voltage (max) |
Release Voltage (min) |
|
| 028 | 28 | 30 | 135 | 17 | – | 22 |
– |
Dimensions |
Circuit Diagram |
Resistive Load Diagram |
 |
 |
 |
Order Mark
- CAST Grade Products
Example: 1JB75-1-28B
| 1JB75-1 | – | 28 | B |
| Main Code | Coil Voltage | Mounting Style |
Specifications: CASTPS06/027-2006
- G and Ⓙ Grade Products
Example: 1JB75-1/II 28B
| 1JB75-1 | / | II | 28 | B |
| Main Code | Environmental Rating | Coil Voltage | Mounting Style |
Specifications: RY4.500.012JT
