GCM155R71H102KA37D

• 1nF Capacitance with 10% Tolerance
• 50V DC Voltage Rating
• X7R Class 2 Ceramic Dielectric
• -55C to 125C Operating Temperature Range
• 0402 (1005 metric) case, 1mm by 500um, 500um Maximum Height
• Lead-free, RoHS compliant, Supplied in Tape and Reel

The Murata GCM155R71H102KA37D is a 1nF multilayer Ceramic Capacitor rated at 50V DC with a 10% tolerance, using an X7R dielectric in an 0402 (1005 metric) case. X7R is a Class 2 ceramic held within 15% from -55C to 125C, and like all Class 2 ceramics its effective capacitance falls under applied DC bias - though at 1nF on a 50V part that derating matters far less than it would on a bulk capacitor. The chip measures 1mm by 500um with a 500um height and is lead-free, RoHS compliant and supplied in tape and reel. REACH SVHC is flagged Yes on this record, so a substance declaration should be requested with the order.

1nF is a filtering and coupling value rather than a bulk decoupling one, and it is specified for EMI and RF bypass on signal and supply lines, snubber and RC damping networks, feedback compensation in switching regulator loops, AC coupling in low-frequency signal paths, and slowing a MOSFET gate drive deliberately. The 50V rating is high relative to the capacitance, which is what makes the part usable across 12V, 24V and 48V-referenced circuits with genuine derating margin rather than marginal headroom. Choosing X7R over X5R extends the usable range to the full -55C to 125C span, which is a requirement in automotive and industrial equipment. Boards consume this value in quantity alongside the larger decoupling capacitors, typically wherever a datasheet calls for a specific filter corner.