JBR-3329 4 Terminal Styles Trimming Potentiometers

The JBR-3329 Trimming Potentiometer is engineered for precision, featuring a multi-turn adjustment mechanism for accurate resistance tuning in sensitive applications. Its sealed cermet design ensures durability and long-term stability even under demanding environmental conditions.

Offered with 4 terminal styles, the JBR-3329 provides flexible integration into compact circuit boards, making it ideal for calibration, sensor balancing, and fine electronic adjustments.

Specifications

Standard Resistance Range	100Ω - 2MΩ
Resistance Tolerance	±10%; ±20% for 10Ω
Absolute Minimum Resistance	≤10Ω (100Ω ≤ R ≤ 1KΩ); ≤1%R (R > 1KΩ)
Contact Resistance Variation (CRV)	≤3% or 5Ω (whichever is larger)
Insulation Resistance	R1 ≥ 1GΩ (500Vdc)
Withstand Voltage	500VAC
Effective Travel	230°
Power Rating	0.5W @ 70℃; 0W @ 125℃ (300V max)
Operating Temperature Range	-55℃ ~ +125℃
Temperature Coefficient	±250×10⁻⁶/℃ (±100ppm/℃ on request)
Temperature Variation	ΔR ≤ ±2%R, Δ(Uab/Uac) ≤ ±2%R (-55℃, 30min; +125℃, 30min, 5 cycles)
Vibration	10 – 500Hz, 0.75mm, 6h; ΔR ≤ ±1%R, Δ(Uab/Uac) ≤ ±2%R
Collision	390m/s², 4000 cycles; ΔR ≤ ±1%R
Electrical Endurance	0.5W @ 70℃, 1000h; ΔR ≤ ±(5%R + 0.1Ω), CRV ≤ ±3% or 5Ω (whichever is larger)
Rotational Life	200 cycles; ΔR ≤ ±(10%R + 0.5Ω), CRV ≤ ±3% or 5Ω (whichever is larger)
Starting Torque	≤35mN∙m
Marking	Resistance tolerance (default: ±10%), resistance code, model
Standard Packaging	50pcs per tube