IWTX47R0DAEB6R3JR1 - 6.3µH Wireless Charging Transmitter Coil | Vishay Dale
料号： IWTX47R0DAEB6R3JR1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.45 | $12.45 |
| 10 | $11.21 | $112.10 |
| 100 | $9.94 | $994.00 |
| 500 | $8.84 | $4,420.00 |
| 1,000 | $7.85 | $7,850.00 |
IWTX47R0DAEB6R3JR1 概述
A wireless charging transmitter coil is a passive inductive component that forms the primary side of an air-gap-coupled transformer; energy is driven into the coil by an inverter class-D or full-bridge stage, generating an alternating magnetic flux that the receiver coil converts back to DC. Within the broader passive component taxonomy, this device sits in the inductor family, specifically the wireless-charging-coil subcategory, which sits at the boundary between power inductors and antenna coils. Environmental-protection shields on transmitter coils reduce radiated emissions, contain stray flux within the active coupling zone, and protect the litz wire from oxidation and humidity-driven degradation in consumer charging pads, industrial tooling chargers, and in-cabin automotive Qi chargers.
Key features specified by Vishay for this part include a 5 % inductance tolerance (3JR1 in the part number denotes 5 % inductance tolerance per Vishay's internal coding), a rated current of 22 A supported by the low-DCR litz-wire geometry, and a single-layer 1-coil construction that simplifies PCB-side assembly. The shielding is an integrated ferrite-loaded coating (rather than a discrete shield plate), allowing OEMs to drop the coil + shield assembly onto a flat PCB or molded plastic surface without secondary shielding hardware. Operating temperature range is rated for standard industrial passive-component environments.
The litz-wire construction, which bundles multiple fine insulated strands, significantly reduces skin-effect and proximity-effect losses at the 100-200 kHz switching frequencies used in Qi and proprietary inductive links, compared to solid-wire equivalents of the same total cross section. The environmental shield further lowers radiated EMI by attenuating high-frequency harmonic content of the coil's magnetic near-field. Together these features support cleaner EMI signatures and reduced thermal rise in continuous-power transmitter applications.
Typical applications include Qi-compliant wireless charging transmitter pads for smartphones and wearables, inductive charging cradles for medical and industrial handheld devices, in-cabin automotive phone chargers operating on 12 V battery rails, and proprietary resonant power-transfer stages in industrial robotics, AGV fleets, and low-power EV charging accessories. Each use case benefits from the coil's low-DCR thermal behavior and its shielded construction.
When designing with this transmitter coil, plan the PCB cut-out, bobbin footprint, and thermal sink path before layout. The shield coating must remain intact during handling and assembly; pin and pad layout must respect the coil's specified A and B dimensions from the datasheet mechanical drawing.
直接替换替代料： IWTX47R0DAEB6R3JR1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
IWTX4646DAEB6R3JR1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
IWTX54R0DAEB6R3JR1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
IWTX47R0DAEB6R3JR1 最大额定值与电气特性
| Product Type | Wireless Charging Transmitter Coil with Shield |
| Inductance | 6.3 µH |
| Inductance Tolerance | 5 % |
| DC Resistance (DCR) | 40 mOhm |
| Rated Current | 22 A |
| Number of Coils | 1 |
| Number of Layers | 1 Layer |
| Construction | Litz wire winding with environmental shield coating |
| Operating Frequency | 100 kHz to 200 kHz (typical Qi/PMA band) |
| Humidity Rating | Up to 90 % RH (with environmental shield) |
| 安装类型 | Surface / pad mounted with integrated shield |
| RoHS 状态 | Compliant |
| Series | Vishay IWTX |
| Manufacturer | Vishay Dale |
IWTX47R0DAEB6R3JR1 standard 引脚配置指南
IWTX47R0DAEB6R3JR1（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： IWTX47R0DAEB6R3JR1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
IWTX47R0DAEB6R3JR1 适用于 7 应用s: Qi-Compliant Smartphone Charging Pad, In-Cabin Automotive Qi Charger, Wearable / Smartwatch Charging Cradle, Medical Handheld Device Inductive Charger, Industrial Tool / Cordless-Device Charging Dock, AGV / Robot Inductive Charging Pad, Low-Power EV / E-Bike Charging Accessory.
Qi-Compliant Smartphone Charging Pad
The IWTX47R0DAEB6R3JR1's 6.3 µH inductance, 5 % tolerance, and 22 A current rating align directly with the Qi WPC transmitter (Tx) coil requirements in the 100-200 kHz switching band. The 40 mΩ DCR and litz-wire construction keep I²R conduction loss manageable during continuous 5 W / 10 W / 15 W transmitter operation, while the integrated environmental shield coating (rated to 90 % RH) lets the coil survive kitchen-counter and bathroom humidity that bare coils cannot. Embedded under a non-metallic charging surface, it produces the alternating magnetic flux that the receiver coil in the phone captures and rectifies. This is the dominant commercial application for the part.
推荐
In-Cabin Automotive Qi Charger
The IWTX47R0DAEB6R3JR1's combined shielding and humidity-resistance rating make it a strong candidate for in-cabin automotive Qi phone chargers mounted on the center console. The integrated environmental shield coating is rated to 90 % RH, covering the wide humidity swings a closed vehicle experiences from summer sun to winter cold-soak with a snow-soaked interior. The 22 A continuous rating supports the higher transmitter currents required for automotive fast-charging Qi variants (15 W to 30 W output). A ferrite backing plate or chassis ground under the coil further suppresses radiated EMI to infotainment CAN bus lines.
推荐
Wearable / Smartwatch Charging Cradle
The compact coil form-factor and 6.3 µH inductance profile of the IWTX47R0DAEB6R3JR1 suit wearable / smartwatch charging cradles where the transmitter coil sits in a small puck or saucer-shaped dock. The 5 % inductance tolerance is tight enough to keep the resonant tank tuned across production batches, important when the receiver is a sealed smartwatch with limited tuning flexibility. The litz-wire construction keeps the coil cool under the modest continuous currents used for low-power 1 W to 5 W wearable charging, while the integrated shield allows the cradle housing to be a sealed plastic enclosure without further ferrite treatment.
推荐
Medical Handheld Device Inductive Charger
For medical handheld devices (blood-pressure monitors, portable infusion pumps, diagnostic probes) the IWTX47R0DAEB6R3JR1's sealed shield coating and silk-covered litz wire reduce the risk of contamination ingress into the charging cradle, an important consideration in clinical and hospital-cleaning environments where charging cradles are repeatedly wiped with disinfectants. The 22 A current headroom is well above the few watts a handheld medical device needs, leaving thermal margin for sealed-enclosure continuous-operation tests. The 6.3 µH inductance at 5 % tolerance supports the resonant-tank centering that handheld inductive charging is built around.
推荐
Industrial Tool / Cordless-Device Charging Dock
The IWTX47R0DAEB6R3JR1's 22 A current rating and low 40 mΩ DCR make it usable as the transmitter coil in industrial-cordless-drill and cordless-hand-tool charging docks, where inductive charging eliminates the open electrical contacts that wear out under vibration and dust. The integrated 90 % RH environmental shield stands up to jobsite humidity and concrete-dust-laden air; the silk-covered litz wire prevents scratching and deformation when the tool is repeatedly dropped onto the dock. The 6.3 µH inductance is straightforwardly tuned with industrial-grade resonant capacitors to a robust 100-200 kHz switching frequency.
推荐
AGV / Robot Inductive Charging Pad
Automated guided vehicles (AGVs), service robots, and warehouse robots commonly dock onto inductive charging pads rather than contact-based chargers to extend service intervals. The IWTX47R0DAEB6R3JR1's 22 A continuous rating supports the higher power levels required for AGV opportunistic dock-and-charge cycles; its 6.3 µH inductance, 5 % tolerance, and litz-wire construction keep the resonant tank stable across fleets of identical robots. The integrated environmental shield avoids the dust and condensation that builds up over months of operation in unconditioned warehouse or factory air.
推荐
Low-Power EV / E-Bike Charging Accessory
The IWTX47R0DAEB6R3JR1 can serve as the transmitter coil in low-power electric-vehicle and e-bike inductive charging accessories rated from tens of watts up to a few hundred watts, particularly in retrofit kits for e-bike kickstands and small AGV fleets. The 22 A continuous rating gives enough thermal headroom for sustained high-power levels that are well above what's needed for smartphone / wearable Qi. The litz-wire geometry keeps skin-effect losses at the higher 100 kHz frequencies in check, and the integrated shield reduces chassis-mount radiated EMI — important when the charging pad sits in the same vehicle harness as brake / traction controller CAN lines.
推荐
推荐产品汇总
工程参考数据： IWTX47R0DAEB6R3JR1 ——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 | IWTX4646DAEB6R3JR1 | IWTX54R0DAEB6R3JR1 |
|---|---|---|---|
| Package | IWTX transmitter coil + integrated shield | IWTX transmitter coil + integrated shield (same platform) | IWTX transmitter coil + integrated shield (same platform) |
| Brand | Vishay Dale | Vishay Intertechnology | Vishay Intertechnology |
| Inductance | 6.3 µH | 4.6 µH | 5.4 µH |
| Inductance Tolerance | 5 % | 5 % | 5 % |
| Shield Type | Integrated environmental shield coating (90 % RH rated) | Integrated environmental shield coating (90 % RH rated) | Integrated environmental shield coating (90 % RH rated) |
| Construction | Silk-covered litz wire, single-layer | Silk-covered litz wire, single-layer | Silk-covered litz wire, single-layer |
| RoHS Status | Compliant | Compliant | Compliant |
关键差异点
- Integrated environmental shield coating rather than a discrete ferrite shield plate （对比 TDK WCT-series Qi transmitter coils)
- Silk-covered litz-wire winding rather than bare litz wire （对比 Generic Qi transmitter coils without silk covering)
- 6.3 µH inductance with 5 % tolerance is centered for Qi / PMA transmitter resonant-tank designs （对比 Lower-inductance (3-4 µH) generic Qi transmitter coils)
设计说明
When laying out the IWTX47R0DAEB6R3JR1, respect the A and B mechanical dimensions from the Vishay datasheet mechanical drawing — leave the PCB cut-out and keep-out zones around the coil free of copper traces that would short the litz wire or interfere with the integrated shield's magnetic flux path. The shield coating must remain intact; do not scratch or solvent-wipe it during assembly. Source the mechanical drawing dimensions from the official vishay.com/doc/34599 datasheet.
Estimated: at the 22 A rated current with a DCR of 40 mΩ, continuous-conduction I²R loss is approximately 19.4 W (calculated as I² × R = 484 × 0.04). In typical Qi / PMA transmitter operation, average coil current is well below 22 A during the duty-cycled excitation window, so real-world thermal rise is correspondingly lower; however, plan the mechanical chassis for thermal dissipation of the worst-case thermal mass at sustained full-current operation. Use thermally-conductive adhesive between the coil assembly and the chassis heat-spreading surface when appropriate.
At the 100-200 kHz switching frequencies used in Qi and proprietary inductive links, skin-effect and proximity-effect losses dominate the coil's AC resistance; the litz-wire construction of the IWTX47R0DAEB6R3JR1 mitigates these by paralleling many fine insulated strands. Layout designers should keep PCB traces to the resonant capacitor as short and direct as possible, and place the resonant capacitor physically adjacent to the coil to minimize stray loop inductance that would otherwise detune the resonant tank from the 6.3 µH / chosen-C target frequency.
Do not assume a TDK WCT-series or Würth WE-WPCC Qi coil is a drop-in replacement for the IWTX47R0DAEB6R3JR1: those competitor coils share the inductance range but use different mechanical footprints, diameters and shield constructions, so any replacement requires PCB rework and tank retuning. Also verify the inductance tolerance band (5 % here) when ordering samples — the R3JR1 part-number suffix specifically encodes 5 %; other suffixes in the IWTX family encode different tolerance bands.
合规信息
RoHS and REACH compliance per Vishay's standard compliance envelope for the IWTX series. AEC-Q100 not applicable — this is a passive inductor, not an active semiconductor; AEC-Q200 (passive) qualification is not explicitly stated for this part, request it directly from Vishay for automotive-grade use. Halogen-free status not stated in the verified web data; the silk-covered litz wire composition is not detailed in the public datasheet.