Product Overview
The 3224 Series 4 mm SMD Trimpot Trimming Potentiometer is a sealed, surface-mount cermet trimmer designed for industrial applications. It features a 4mm square, multiturn design that meets EIA/EIAJ/IPC/VECI SMD standard trimmer footprints. With a sealed construction to withstand board wash processing and a pick-and-place centering design with flush adjustment, these potentiometers offer low CRV (1%) and are RoHS compliant and halogen-free. Available in top and side adjust styles with J-hook and gull-wing lead forms, they are suitable for various trimmer applications.
Product Attributes
- Brand: Bourns
- Product Line: Trimpot
- Series: 3224
- Type: 4 mm SMD Trimming Potentiometer
- Construction: Sealed, Multiturn Cermet
- Mounting: Surface Mount
- Certifications: RoHS compliant, Halogen free
- Footprint Standard: Meets EIA/EIAJ/IPC/VECI SMD standard trimmer footprint
- Adjustment: Flush adjustment
- Lead Forms: J-hook, Gull-wing
- Flammability: UL94V0
Technical Specifications
| Specification | Details |
|---|---|
| Models | 3224W, 3224X, 3224J, 3224G |
| Standard Resistance Range | 10 to 2 megohm |
| Resistance Tolerance | 10 % std. |
| Absolute Minimum Resistance | 1 % or 2.0 ohms (whichever is greater) |
| Contact Resistance Variation (CRV) | 1 % or 3 ohms max. |
| Resolution | Essentially Infinite |
| Insulation Resistance | 500 vdc, 100 megohms min. |
| Dielectric Strength (Sea Level) | 600 vac (1 minute) |
| Adjustment Angle | 12 turns nom. |
| Power Rating (300 volts max.) | 0.25 watt @ 85 C; 0 watt @ 150 C |
| Temperature Range | -65 C to +150 C |
| Temperature Coefficient | 100 ppm/C |
| Seal Test | 85 C Fluorinert / 60 seconds |
| Humidity (MIL-STD 202 Method 106) | TRS 2 %; IR 10 megohms |
| Vibration (20 G) | TRS 1 %; VRS 1 % |
| Shock (100 G) | TRS 1 %; VRS 1 % |
| Load Life (@ 85 C rated power, 1,000 hours) | TRS: 3 ohms or 3 % (whichever is greater) |
| Rotational Cycling (200 cycles) | TRS: 3 ohms or 3 % (whichever is greater) |
| Thermal Shock (5 cycles) | TRS 2 %; VRS 1 % |
| Mechanical Stop | Wiper idles |
| Torque | 180 g-cm max. |
| Weight | Approximately 0.01 oz. |
| Solderability | Per MIL-STD-202, Method 208 |
| Wiper | 50 % (Actual TR) 10 % |
| Pushover Strength | J, G: 4.4 lbs.; W, X: 1 lb. |
| Adjustment Tool | H-91 |
| Reel Packaging (Standard) | E: 500 pcs./7 reel (Style J, G); 250 pcs./7 reel (Style W); 200 pcs./7 reel (Style X) |
| Reel Packaging (Standard) | G: 1500 pcs./13 reel (Style J, G); 1000 pcs./13 reel (Style W); 850 pcs./13 reel (Style X) |
| Standard Resistance Table Codes | 10, 20, 50, 100, 200, 500, 102, 202, 502, 103, 203, 503, 104, 204, 504, 105, 205 |
2410121608_BOURNS-3224W-1-502E_C81349.pdf
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