2JB2-1 Magnetic Latching Relays
Environmental Characteristics
| NO. | Items | Environmental Specification | |||||
| 1 | Quality Grade | Ⓙ, (G) | Space Grade | GJB | |||
| Ⅱ | Ⅳ | CASTC | CASTB | ||||
| 2 | Temperature Range | (℃) | -55~85 | -65~125 | |||
| 3 | Relative Humidity | (40±2) ℃, 90%~95% | |||||
| 4 | Low Pressure | (kPa) | 0.27~0.013 | ||||
| 5 | Sinusoidal Vibration | (Hz) | 10~2000 | 10~3000 | |||
| (m/s2) | 147 | 196 | 294 | 294 | |||
| 6 | Random Vibration | ((m/s2)2/Hz) | – | 30 | 40 | ||
| 7 | Shock | (m/s2) | 490 | 735 | 980 | ||
| 8 | Acceleration | (m/s2) | 490 | 735 | 980 | ||
Electrical Characteristics (GJB grdae)
| Contact Arrangement | DPDT | Operating Time (ms) | ≤8 | ||
| Coil Power (W) | ≤0.87 | Release Time (ms) | – | ||
| Leak Rate (Pa.cm3/s) | ≤1×10-3 | Load Ratings | Resistive | 2A,28Vd.c. | |
| Contact Resistance(Ω) | Initial | ≤0.05 | |||
| After Life | ≤0.1 | Inductive | 0.5A,28Vd.c.,200mH | ||
| Insulation Resistance (MΩ) | Normal | ≥10000(100Vd.c.) | Light | 0.1A,28Vd.c. | |
| High Temp./Humidity | ≥100(100Vd.c.) | Low level |
10μA~50μA, 10mV~50mV |
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| Dielectric Strength
(50Hz) |
Normal | ≥750 | Life Time (Cycles) | 1×105(G: 1×104) | |
| Overload rating |
Resistive 4A, 28Vd.c., 100 cycles |
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| Low Pressure | ≥200 | Reliability Grade | M | ||
| Weight (g) | ≤12 | ||||
Electrical Specification
| Coil Voltage | 25℃ | -65℃ – 125℃ | ||||
| Normal | Max | Coil resistance
(1±10%) Ω |
Pick-up Voltage max |
Drop-out Voltage min |
Pick-up Voltage max |
Drop-out Voltage min |
| 5 | 7 | 33 | 3.4 | – | 4.5 | – |
| 12 | 15 | 200 | 7.7 | – | 10.3 | – |
| 28 | 32 | 900 | 18.0 | – | 24.0 | – |
Dimension |
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| Installation method A(0) | Installation method B(3) | Installation method C(1) |
| Note: sensitive to vibration direction: horizontal direction | ||
Circuit Diagram |
Resistive Load Diagram |
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Order mark
- China National Military Standard Product
Example: J65B/RY20086-028M/01 2JB2-1
| J | 65B | / | RY20086 | – | 028 | M | / | 0 | 1 | 2JB2-1 |
| GJB | General specification No. | Detailed specification No. | Coil voltage | Reliability grade | Installation method | Terminal pin type | Part No. |
Detailed specification: ZZR-Q/RY20086-2010
- Aerospace grade products
Example: CBJ65B/RY20086-028M/01 2JB2-1
| CB | J | 65B | / | RY20086 | – | 028 | M | / | 0 | 1 | 2JB2-1 |
| CAST B mark | GJB | General specification No. | Detailed specification No. | Coil voltage | Reliability grade | Installation method | Terminal pin type | Part No. |
Detailed specification: CASTPS06/003-2006
- J, G grade
Example: 2JB2-1/IV 28B Quality level (in accordance with environmental level)
| 2JB2-1 | / | IV | 28 | B |
| Part No. | Environmental Class | Coil voltage | Installation method |
Detailed specification: RY4.521.103 JT
