0402CS-22NXJLW - 22nH 0402 RF Ceramic Inductor | Coilcraft
MPN: 0402CS-22NXJLW ✓ Nakahanda0402CS-22NXJLW Ulas
An RF chip inductor is a passive two-terminal component that stores energy in a magnetic field and presents increasing impedance with frequency. Within the passive-component hierarchy (inductor -> RF inductor -> ceramic-core chip inductor), ceramic-core parts sit at the top for Q and SRF because the non-magnetic ceramic core has near-zero core losses compared with ferrite alternatives.
Key features of the 0402CS-22NXJLW include its tight 5% tolerance for repeatable matching-network design, its AEC-Q200 qualification for automotive-grade reliability, and its -40 to +125 C operating range that supports under-hood and high-temperature industrial environments. The thin-film construction on the ceramic core yields a Q factor of about 53 at the 22 nH value.
Technically, the unshielded wirewound-on-ceramic construction minimizes parasitic capacitance, pushing the self-resonance far above the operating band and keeping insertion loss low in 50-ohm systems. The nickel-barrier termination over solder-coated terminals supports reliable reflow soldering and compatible pick-and-place handling.
Typical applications include RF matching networks in front-end modules, Bluetooth, Wi-Fi, GPS, and cellular antenna circuits, plus impedance matching in amplifiers, filters, and VCO tank circuits where compact 0402 size is essential.
Design consideration: because the part is unshielded, maintain spacing from adjacent inductors and ground copper to avoid unintended magnetic coupling that shifts matching-network response.
This page synthesizes verified distributor data, drop-in alternatives, and RF layout guidance not found on the manufacturer datasheet alone.
Mga alternatibo na pwedeng ilagay na 0402CS-22NXJLW — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok 0402CS-22NXJLW (parehas na form factor at footprint) — pagkakaiba sa Inductance, Package, Packaging, Type.
0402CS-22NXJLU
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
0402DC-22NXJLW
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
LQW18AN22NG00D
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
MLG1005S22NJT000
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
0402CS-27NXJLW
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
0402CS-22NXJLW Mga Pinakamataas na Rating at Electrical Characteristics
| Inductance | 22 nH |
| Tolerance | 5% |
| Current Rating | 400 mA |
| DC Resistance | 300 mOhm |
| Self-Resonant Frequency | 2.8 GHz |
| Q Factor | 53 (min, at test frequency per datasheet) |
| Shielding | Unshielded |
| Core Material | Ceramic |
| Type | RF Chip Inductor, Wirewound |
| Packhaging | 0402 (1005 metric) surface mount |
| Temperature na Operasyon | -40C to +125C |
| Qualification | AEC-Q200 |
| Tindminan RoHS | Compliant |
| Uri ng Pagpapasok | Surface Mount |
| Family SRF (max) | Up to 12.7 GHz (0402CS family) |
| Packaging | Tape & Reel |
Pin Configuration ng 0402CS-22NXJLW
| Pin 1 | Terminal 1 — Inductor termination (non-polarized) |
| Pin 2 | Terminal 2 — Inductor termination (non-polarized) |
Tipikal na mga Gamit
0402CS-22NXJLW ay nararapat para sa 6 aplikasyons: RF Matching Networks, Bluetooth and Wi-Fi Modules, Automotive RF and Telematics, Amplifier Bias Chokes, VCO and Filter Tank Circuits, GPS and GNSS Receivers.
RF Matching Networks
The 0402CS-22NXJLW fits L-section, pi, and T matching networks in 50-ohm RF chains because its 22 nH value presents practical reactance (about 138 ohms at 1 GHz) with a Q near 53, keeping insertion loss low. The 2.8 GHz SRF ensures the part remains inductive and predictable across common bands including sub-GHz ISM, 2.4 GHz Bluetooth/Wi-Fi edge cases, and cellular bands. Its 5% tolerance limits match drift, and AEC-Q200 qualification supports automotive antenna-tuner circuits. Placed in series or shunt on the same land pattern as competing 0402 parts, it simplifies design-in; simulate with Coilcraft S-parameters to capture parasitic effects above 1 GHz.
Inirekomenda
Bluetooth and Wi-Fi Modules
In 2.4 GHz Bluetooth and Wi-Fi front ends, the 0402CS-22NXJLW serves as antenna-matching and balun-support inductance where the compact 0402 (1005) size is mandatory for dense module layouts. The 2.8 GHz SRF sits just above the operating band, so the effective inductance is highly predictable at 2.4-2.5 GHz when confirmed via S-parameter simulation. The 400 mA rating handles PA bias and balun currents in low-power radio designs, and the ceramic core avoids ferrite loss that would degrade transmit efficiency. The unshielded construction requires attention to nearby ground vias and adjacent inductor spacing to prevent coupling shifts in the match.
Inirekomenda
Automotive RF and Telematics
The 0402CS-22NXJLW is specifically positioned for automotive and other high-temperature applications because the 0402CS family meets AEC-Q200 and operates from -40C to +125C per Coilcraft. In telematics units, keyless-entry receivers, antenna modules, and V2X front ends, it provides reliable 22 nH matching inductance that survives under-hood and roof-antenna thermal environments. The 5% tolerance keeps filter and match responses consistent across production, and the ceramic core maintains stable inductance with temperature. Designers should verify derating at +125C ambient against the 400 mA rating and follow Coilcraft land-pattern recommendations for solder-joint reliability under thermal cycling.
Inirekomenda
Amplifier Bias Chokes
As an RF bias choke, the 0402CS-22NXJLW feeds DC to LNA or PA devices while blocking RF, using its 22 nH inductance and 2.8 GHz SRF to present high impedance at the operating frequency. The 400 mA current rating with 300 mOhm DCR limits DC voltage drop to about 120 mV at full current, preserving bias headroom in low-voltage designs. The ceramic core eliminates ferrite saturation concerns under bias current, a key advantage over ferrite-bead or ferrite-core alternatives. For wideband amplifiers, verify choke impedance versus the device output impedance with S-parameters, since self-resonance and parasitic capacitance set the effective blocking range.
Inirekomenda
VCO and Filter Tank Circuits
In VCO tank circuits and discrete LC filters, the 0402CS-22NXJLW pairs with low-loss capacitors to set resonance; its Q near 53 supports loaded-Q targets in narrowband filters from VHF through roughly 2 GHz. The 5% inductance tolerance bounds resonant-frequency spread, and temperature-stable ceramic-core construction keeps the tank frequency drifting less than ferrite-based inductors across -40C to +125C. At the 22 nH value, resonance with a 1 pF capacitor occurs near 1.07 GHz, illustrating the practical VHF/UHF range. Use Coilcraft S-parameters in filter simulation to capture SRF roll-off and achieve first-pass tuning accuracy in production.
Inirekomenda
GPS and GNSS Receivers
GPS and GNSS front ends operating near 1.575 GHz benefit from the 0402CS-22NXJLW as a matching or pre-filter inductor: its 2.8 GHz SRF comfortably exceeds the band, and its 300 mOhm DCR plus ceramic-core low loss protect the already-weak satellite signal from added insertion loss. The compact 0402 footprint suits space-constrained antenna modules in trackers, dashcams, and asset tags. AEC-Q200 qualification allows use in automotive telematics where GNSS reception must survive -40C to +125C. Because the part is unshielded, route it away from switching-regulator loops to prevent low-frequency magnetic pickup from modulating the sensitive LNA input.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for 0402CS-22NXJLW — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | 0402CS-22NXJLU | 0402DC-22NXJLW | LQW18AN22NG00D | MLG1005S22NJT000 |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0402 (1005 metric) - same | 0402 (1005 metric) - same | 0402 (1005 metric) - same | 0402 (1005 metric) - same |
| Brand | Coilcraft | Coilcraft | Coilcraft | Murata Manufacturing | TDK |
| Inductance | 22 nH | 22 nH | 22 nH | 22 nH | 22 nH |
| Tolerance | 5% | 2% (tighter) | 5% | 2% (G00D suffix) | 5% |
Pangunahing mga Pagkakaiba
- AEC-Q200 automotive qualification with +125C rating (kumpara saLQW18AN22NG00D)
- Manufacturer-endorsed higher-Q upgrade path in the same footprint (kumpara sa0402DC-22NXJLW)
- Tighter tolerance option for precision matching (kumpara sa0402CS-22NXJLU)
Talaan ng Disenyo
Above roughly 1 GHz, model the 0402CS-22NXJLW using Coilcraft S-parameters rather than an ideal 22 nH element. With an SRF of 2.8 GHz at the 22 nH value, parasitic capacitance shifts effective inductance significantly near and above the SRF, and an ideal-lumped simulation will mispredict match resonance. Coilcraft provides free S-parameter files and the Coilcraft Inductor Modeler tool for this purpose; use them for 2.4 GHz and higher designs.
The 0402CS-22NXJLW is unshielded. Keep at least one 0402 body-width clearance between adjacent inductors, orient alternating inductors 90 degrees to reduce mutual coupling, and avoid routing ground planes directly beneath the coil area if possible. Mutual coupling between unshielded 0402 RF inductors can shift matching-network frequency response by several percent, and vertical proximity to ground copper changes effective inductance and Q.
The 400 mA rating is specified per the Coilcraft datasheet conditions. Estimated: at the 300 mOhm DCR, DC bias of 400 mA dissipates I2R = 0.4 x 0.4 x 0.3 = 48 mW, which is manageable in the 0402 package, but RF RMS current adds to thermal load in PA bias applications. For ambient temperatures approaching +125C, derate current and verify joint reliability with the Coilcraft land pattern from the datasheet.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliance confirmed by JLCPCB part listing and distributor data. AEC-Q200 (passive component standard) qualification per Coilcraft product page; AEC-Q100 does not apply to passives.
