| Spectrol No. | NTE Part No. | Value Ohms |
Shaft Length |
Diag. No. |
| 149-8-08-101 | 502-0002 | 100 | 3/4" | P7 |
| 149-9-10-101 | 502-0021 | 100 | 7/8" | P8 |
| 149-8-08-200 | 502-0003 | 200 | 3/4" | P7 |
| 149-9-10-200 | 502-0022 | 200 | 7/8" | P8 |
| 149-8-08-251 | 502-0004 | 250 | 3/4" | P7 |
| 149-9-10-251 | 502-0023 | 250 | 7/8" | P8 |
| 149-8-08-501 | 502-0005 | 500 | 3/4" | P7 |
| 149-9-10-501 | 502-0024 | 500 | 7/8" | P8 |
| 149-8-08-102 | 502-0006 | 1K | 3/4" | P7 |
| 149-9-10-102 | 502-0025 | 1K | 7/8" | P8 |
| 149-J-9-10-102 | 502-0045 | 1K | 7/8" | P8 |
| 149-8-08-252 | 502-0007 | 2.5K | 3/4" | P7 |
| 149-9-10-252 | 502-0026 | 2.5K | 7/8" | P8 |
| 149-J-9-10-252 | 502-0046 | 2.5K | 7/8" | P8 |
| 149-8-08-502 | 502-0008 | 5K | 3/4" | P7 |
| 149-9-10-502 | 502-0027 | 5K | 7/8" | P8 |
| 149-J-9-10-502 | 502-0047 | 5K | 7/8" | P8 |
| 149-8-08-103 | 502-0009 | 10K | 3/4" | P7 |
| 149-9-10-103 | 502-0028 | 10K | 7/8" | P8 |
| 149-J-9-10-103 | 502-0048 | 10K | 7/8" | P8 |
| 149-8-08-253 | 502-0010 | 25K | 3/4" | P7 |
| 149-9-10-253 | 502-0029 | 25K | 7/8" | P8 |
| 149-J-9-10-253 | 502-0049 | 25K | 7/8" | P8 |
| 149-8-08-503 | 502-0011 | 50K | 3/4" | P7 |
| 149-9-10-503 | 502-0030 | 50K | 7/8" | P8 |
| 149-J-9-10-503 | 502-0050 | 50K | 7/8" | P8 |
| 149-11-104 | 502-0012 | 100K | 3/4" | P7 |
| 149-9-10-104 | 502-0031 | 100K | 7/8" | P8 |
| 149-J-9-10-104 | 502-0051 | 100K | 7/8" | P8 |
| 149-8-08-254 | 502-0013 | 250K | 3/4" | P7 |
| 149-9-10-254 | 502-0032 | 250K | 7/8" | P8 |
| 149-8-08-504 | 502-0014 | 500K | 3/4" | P7 |
| 149-9-10-504 | 502-0033 | 500K | 7/8" | P8 |
| 149-8-08-105 | 502-0015 | 1M | 3/4" | P7 |
| 149-9-10-105 | 502-0034 | 1M | 7/8" | P8 |
| 149-8-08-205 | 502-0016 | 2M | 3/4" | P7 |
| 149-9-10-205 | 502-0035 | 2M | 7/8" | P8 |
Dimensional Drawing
Specifications
P7
P8
Electrical
Resistance Range - Linear Taper: 100 Ohms to 1Meg Ohms
Resistance Range - CW Audio Taper: J types
Resistance Tolerance: ±10%
Power Rating: 1W @ +85°C derated to 0W @ +125°C
Temperature Coefficient of Resistance: ±150ppm/°C
Linearity Tolerance: ±5% independent
Contact Resistance variation: 3% of total resistance
Insulation Resistance: 1000 Meg Ohm min, 500VDC
Dielectric Strength: 750V RMS min 60Hz
End Resistance: 2 Ohms max each end
Effective Electrical Angle: 265° ±5°
Rotation Life: 25,000 cycles
Mechanical
Resistance Element: Cermet
Mechanical Rotation: 295° ±5°
Starting and Running Torque: 21.6 to 216gm-cm
End Stop Torque: 0.339Nm (48 oz in)
Environmental
Operating Temperature: -55° to +150°C
Rotation Life: 2,000,000 shaft revolutions
Load Life: 1000 hr.
