| 1. GENERAL |
| Scope | C4551N | |
| Operating temperature range | | -10~70 |
| Storage temperature range | | -30~70 |
| Test conditions | Standard atmospheric conditions; ambient temperature 5~35, relative humidity 45~85%; air pressure 86kpa to 106kpa; | |
| Standard range of atmospheric conditions for making measurements and test (unless otherwise specified) | ambient temperature 202, relative humidity 60~70%, air pressure 86kpa to 106kpa |
| For doubt or special requirements | Reference condition |
| 2. ELECTRICAL CHARACTERISTICS |
| Nominal total resistance and tolerance between terminals 1 and 3 | Measurement shall be made by the resistance law method (JISC5261 standard). | 250K20% |
| Resistance law | Taper B (Refer to the attached) | B |
| Power rating | Based on continuum full load operation at the maximum voltage denoted on the graph. | 0.2W |
| Rated voltage | Max operation voltage | 200V AC |
| Rated voltage | 10V DC |
| Residual resistance | R12, R23 | R12 10 R23 30 |
| Slide noise | Slide speed : 1 Cycles/3s. | 100mVp-p |
| Insulation resistance | Between individual terminals and frame. DC 250V 1 minute | 0M |
| Dielectric strength | Between terminals and fixed plate. AC 300V 1 minute; Current: 2mA | |
| 3. Mechanical characteristics |
| Total travel slide | Effective slide travel | 450.5mm |
| Operating force | | 10~100gf |
| Click force | Position of 5mm to the end of the top handle, perpendicular force of 0.5 kgf | 50~200gf |
| Stop strength | Torsion moment load of 5Kgf.cm for 5 sec at both ends (after fixation) | |
| Lever wobble | | 2(2L)/20mm Max |
| Thrust and tensile lever | Thrust and tensile static load of 3kgf.cm for 10 sec | |
| Resistance to soldering heat | Terminals immersed into solder bath at 2355C for 30.5s. Surface coverage: 75% minimum. Substrate: 1.6mm thickness single-sided copper clad laminate. Preheating: substrate surface temp 100 within 1 min. | Electrical characteristics shall be satisfied with specification. |
| Terminal strength | After fixation add 0.5kgf static force along to the terminal position and keep 10sec. | Electrical characteristics shall be satisfied with specification. |
| 4. ENDURANCE CHARACTERISTICS |
| Solderability | Terminals immersed into solder bath at 2355C for 30.5s. Surface coverage: 75% minimum. | |
| Resistance to soldering heat | Total resistance change: 5%. No case deformation or terminal loosening. Wave soldering: 2605C for 10 1 sec. | Electrical characteristics shall be satisfied with specification. |
| Resistance to heat | After 2408 hours at 802C, kept at room temp for 1 hour. Measured within 1 hour. | Total resistance change: +5/-20%. |
| Resistance to cold | After 964 hours at -303C, kept at room temp for 1 hour. Measured within 1 hour. | Total resistance change: 20%. |
| Damp heat | 944 hours at 402C, 90-95% humidity. Kept at room temp for 1 hour. Measured within 1 hour. | Insulation resistance: 10M. Total resistance change: +5/-20%. |
| Change of temperature | 5 consecutive cycles: -103C (30 min), Room temp (10-15 min), 703C (30 min), Room temp (10-15 min). Kept at room temp for 1 hour. Measured within 1 hour. | Appearance: no cracks of molded part. Total resistance change: specified value 15%. Rotational noise: 150mVp-p. Rotational torque shall not deviate from the previously specified value. |
| Endurance | Axis rotates at 600 cycles/hour, for 15,000 200 cycles. Effective rotation angle >90%. | Residual resistance: R1~2: 40, R2~3: 60. |
| Salt mist | 352C, 51% concentration (by weight) for 12h. | Clean with water, no apparent rust and discoloration. |
| Vibration | 10Hz and 50Hz, X,Y,Z 3 directions, 2h/each. To be operated mechanically. | No sliding abnormality, electrical characteristics are as usual. |
