GCM21BR71H184JA37K Murata Electronics Capacitor (Capacitor Chip Non-polarised) In Stock
Murata GCM21BR71H184JA37K is an 0805 SMD MLCC ceramic capacitor with 0.18 µF capacitance, 50 V voltage rating, X7R dielectric, and 5% tolerance, designed for high-reliability decoupling and filtering in demanding electronic applications. Available in stock worldwide.
- Manufacturer
- Murata Electronics
- Package
- Capacitor Chip Non-polarised
- Pin Count
- 2
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- GCM21BR71H184JA37K Datasheet PDF
- Category
- Capacitor
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 0.18 µF capacitance at 50 V rating with X7R dielectric maintains capacitance within ±15% across -55°C to +125°C for stable performance over temperature
- 0805 (2012 metric) SMD package at 1.25 mm height integrates easily into standard PCB reflow assembly with a widely available footprint
- 5% tolerance (J grade) provides tighter capacitance accuracy than standard 10% or 20% MLCCs, reducing variation in filter and decoupling circuit behavior
Applications
The GCM21BR71H184JA37K is used as a bypass and decoupling capacitor in power management circuits, DC-DC converter output filters, and signal conditioning networks operating at up to 50 V. Its X7R dielectric ensures stable 0.18 µF capacitance across the industrial temperature range of -55°C to +125°C, making it suitable for automotive, industrial, and communications equipment where reliable high-voltage decoupling is required in an 0805 footprint.
Specifications
| Reach Compliance Code | Compliant |
| Factory Lead Time | 14Weeks |
| YTEOL | 3 |
| Capacitance | 0.18 µF |
| Capacitor Type | CERAMIC CAPACITOR |
| Dielectric Material | CERAMIC |
| Height | 1.25mm |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Multilayer | YES |
| Negative Tolerance | 5% |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Packing Method | 330mm Reel W8P4 |
| Positive Tolerance | 5% |
| Rated (DC) Voltage (URdc) | 50V |
| Reference Standard | AEC-Q200 |
| Size Code | 2012M/0805 |
| Surface Mount | YES |
| Temperature Characteristics Code | X7R |
| Temperature Coefficient | 15% ppm/°C |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Shape | WRAPAROUND |
| Package | Capacitor Chip Non-polarised |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.24.00.20 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage rating and dielectric does GCM21BR71H184JA37K use, and how does X7R affect capacitance stability?
The GCM21BR71H184JA37K is rated at 50 V with X7R dielectric and 0.18 µF capacitance. X7R dielectric maintains capacitance within ±15% of its nominal value across a temperature range of -55°C to +125°C, making it significantly more stable than Y5V or Z5U materials, which can lose 80% or more of their capacitance at temperature extremes.
Why is 5% tolerance important when selecting GCM21BR71H184JA37K for precision filter designs?
The J (5%) tolerance on GCM21BR71H184JA37K means the actual capacitance falls within ±0.009 µF of the 0.18 µF nominal value. In RC filter or impedance matching applications, a 5% tolerance capacitor provides twice the accuracy of a standard 10% tolerance part, resulting in tighter cutoff frequency control and more predictable circuit behavior across production volumes.
How does the GCM21BR71H184JA37K perform as a decoupling capacitor at 50 V in DC-DC converter designs?
At 50 V DC bias, GCM21BR71H184JA37K maintains usable 0.18 µF capacitance after accounting for DC bias derating inherent in X7R MLCCs. In 12 V to 48 V DC-DC converter output filters, its 50 V rating provides a generous 2x to 4x voltage safety margin, and its 0805 package allows placement close to the switching node to minimize decoupling loop inductance and suppress high-frequency switching noise.
Can GCM21BR71H184JA37K replace a 0.1 µF or 0.22 µF X7R MLCC of the same voltage rating in decoupling applications?
GCM21BR71H184JA37K at 0.18 µF is an intermediate value between 0.1 µF and 0.22 µF alternatives. In broadband decoupling at 50 V, the 0.18 µF value provides slightly lower impedance at mid-frequency compared to 0.1 µF, and is within 18% of 0.22 µF, making it a viable substitute in many applications where exact capacitance is not critical to filter corner frequency within a 20% band.
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