MLCC GJM1555C1H4R9WB01D

What is GJM1555C1H4R9WB01D MLCC?

The GJM1555C1H4R9WB01D is a high-precision SMD capacitor manufactured by Murata. Key specs include 4.9pF capacitance, 50V voltage rating, C0G/NP0 dielectric, 0402 case size, and an ultra-tight tolerance of ±0.05pF. RoHS compliant, it is designed for demanding RF and timing circuits where stable, low-loss performance is essential.

✔ RoHS Compliant  /  ✔ 0402  /  ✔ Murata Quality  /  ✔ Long-Term Supply

Typical Applications & Why This Part Fits

• RF Impedance Matching Networks: The ±0.05pF tolerance ensures minimal deviation in resonant frequency, critical for 4.9pF used in antenna matching stages at 50V operation.
• High-Frequency Filters: C0G/NP0 dielectric offers excellent temperature stability (±30ppm/°C) and low dielectric absorption, making this 4.9pF capacitor ideal for narrow-band filters in 0402 footprints.
• Precision Timing Circuits: With only 4.9pF and tight ±0.05pF accuracy, it provides reliable time constant control in oscillator or PLL loop filters for 50V-rated designs.

Key Features & Advantages

• Extreme Tolerance Control: ±0.05pF rating guarantees less than 1% capacitance deviation – essential for maintaining RF performance without manual tuning.
• C0G/NP0 Stability: Zero capacitance change with voltage and near-zero temperature coefficient ensures consistent operation from -55°C to +125°C.
• Compact 0402 Package: Low profile (0.22mm typ) suits densely populated PCB designs, while 50V rating provides robust headroom for signal integrity.

Frequently Asked Questions

1. Q: What makes GJM1555C1H4R9WB01D different from a standard 0402 MLCC?
   A: Unlike general-purpose capacitors, this Murata part offers an exceptionally tight ±0.05pF tolerance and C0G/NP0 dielectric, ensuring highly predictable performance in precision high-frequency applications.
2. Q: Is GJM1555C1H4R9WB01D RoHS compliant?
   A: Yes, as a Murata product, it is standardly RoHS compliant and lead-free, meeting current environmental directives for electronic assemblies.
3. Q: What is the MOQ? Can we get small batches?
   A: We support small batch orders and full BOM kitting at SZYY, including fast prototyping supply. Our flexible inventory allows you to order just what you need for development runs.

Cross Reference & Alternative Sourcing

While GJM1555C1H4R9WB01D is our primary recommendation, comparable alternatives are available. We provide comprehensive BOM Kitting service to simplify your procurement across multiple line items.