0402CS-22NXJLW - 22nH 0402 RF Ceramic Inductor | Coilcraft
料号： 0402CS-22NXJLW ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.19 | $0.19 |
| 10 | $0.14 | $1.40 |
| 100 | $0.11 | $11.00 |
| 500 | $0.09 | $45.00 |
| 1,000 | $0.08 | $80.00 |
0402CS-22NXJLW 概述
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.
直接替换替代料： 0402CS-22NXJLW ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： 0402CS-22NXJLW （相同外形与封装尺寸） ——差异在于 Inductance, Package, Packaging, Type.
快速对比工具——选择替代料号进行并排对比：
0402CS-22NXJLU
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
0402DC-22NXJLW
✅ 直接替换📋 参考替代料（不在目录中）
LQW18AN22NG00D
✅ 直接替换📋 参考替代料（不在目录中）
MLG1005S22NJT000
✅ 直接替换📋 参考替代料（不在目录中）
0402CS-27NXJLW
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
0402CS-22NXJLW 最大额定值与电气特性
| 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 |
| 封装 | 0402 (1005 metric) surface mount |
| 工作温度 | -40C to +125C |
| Qualification | AEC-Q200 |
| RoHS 状态 | Compliant |
| 安装类型 | Surface Mount |
| Family SRF (max) | Up to 12.7 GHz (0402CS family) |
| Packaging | Tape & Reel |
0402CS-22NXJLW 引脚配置
| 引脚 1 | Terminal 1 — Inductor termination (non-polarized) |
| 引脚 2 | Terminal 2 — Inductor termination (non-polarized) |
典型应用
0402CS-22NXJLW 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： 0402CS-22NXJLW ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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% |
关键差异点
- AEC-Q200 automotive qualification with +125C rating （对比 LQW18AN22NG00D)
- Manufacturer-endorsed higher-Q upgrade path in the same footprint （对比 0402DC-22NXJLW)
- Tighter tolerance option for precision matching （对比 0402CS-22NXJLU)
设计说明
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.
合规信息
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.
