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| Part Number | 91A1A-B28-A20L | 91A1A-B28-A23L | 91A1A-B28-A22L | 91A1A-B28-A25L | 91A1A-B28-B20L | 91A1A-B28-E20L | 91A1A-B28-D20L | 93A1A-B28-A20L | 91A1A-B24-A20L | 91A1A-B28-A10L | 91A1A-B28-A20 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. | Bourns Inc. |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Obsolete |
| Resistance (Ohms) | 100k | 500k | 250k | 1M | 100k | 100k | 100k | 100k | 100k | 1K | 100k |
| Tolerance | ±10% | ±10% | ±10% | ±10% | ±20% | ±10% | ±20% | ±10% | ±10% | ±10% | ±10% |
| Power (Watts) | 2W | 2W | 2W | 2W | 1W | 1W | 0.5W, 1/2W | 2W | 2W | 2W | 2W |
| Built in Switch | None | None | None | None | None | None | None | None | None | None | None |
| Number of Turns | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Features | - | - | - | - | - | - | - | - | - | - | - |
| Taper | Linear | Linear | Linear | Linear | Linear | Linear | Logarithmic | Linear | Linear | Linear | Linear |
| Number of Gangs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Adjustment Type | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment | Side Adjustment |
| Temperature Coefficient | ±150ppm/°C | ±150ppm/°C | ±150ppm/°C | ±150ppm/°C | ±1000ppm/°C | ±1000ppm/°C | ±1000ppm/°C | ±150ppm/°C | ±150ppm/°C | ±150ppm/°C | ±150ppm/°C |
| Rotation | 300° | 300° | 300° | 300° | 300° | 300° | 300° | 300° | 300° | 300° | 300° |
| Resistive Material | Cermet | Cermet | Cermet | Cermet | Conductive Plastic | Conductive Plastic | Conductive Plastic | Cermet | Cermet | Cermet | Cermet |
| Termination Style | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins | PC Pins |
| Actuator Type | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted | Slotted |
| Actuator Length | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.875" (22.23mm) | 0.750" (19.05mm) | 0.875" (22.23mm) | 0.875" (22.23mm) |
| Actuator Diameter | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) | 0.250" (6.35mm) |
| Bushing Thread | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 | 3/8-32 |
| Mounting Type | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
