Lan Transformer: VOOHU WHSG24719PT G as Replacement for Würth 7490220122

1.Competitor Product Overview (Würth Elektronik eiSos GmbH & Co. KG)

Würth Elektronik 7490220122 (WE-LAN series) is a 1000BASE-T quad-channel SMD transformer module with POE+ support (IEEE 802.3bt, 4PPoE) in a 24-pin package. Operating temperature -40°C to +105°C, isolation voltage 1500 VRMS, turns ratio 1:1 ±2%, OCL 350 µH Min @100kHz. Supports up to 1000 mA per centre tap PoE current (pins 13-24 only). Certified: RoHS / REACh / cURus, MSL Level 1.

2. 2.VOOHU Replacement Product (SuZhou Voohu Electronic Tech. Co., Ltd.)

VOOHU WHSG24719PT G is the ideal drop-in replacement offering equivalent functionality with superior cost-effectiveness and supply stability. It is a 100/1000BASE-T quad-channel SMD transformer module in a pin-compatible 24-pin package, with identical circuit topology (1CT:1CT × 4 channels), supporting PoE (IEEE 802.3at, 900 mA), isolation voltage 1500 VAC, OCL 350 uH Min @100kHz. Additionally provides guaranteed leakage inductance (0.5 uH Max) and DCR (1.4Ω Max) specs. RoHS compliant — direct drop-in for standard 1000BASE-T PoE applications.

4. 3.Key Parameter Comparison

The table below maps Würth datasheet parameters to VOOHU WHSG24719PT G specifications.

Notes: ① PoE current: Würth supports 1000 mA/CT (IEEE 802.3bt, 4PPoE); VOOHU supports 900 mA (IEEE 802.3at) — sufficient for standard PoE applications; verify if 4PPoE full-power is required. ② Operating temp: Würth up to +105°C vs VOOHU +85°C; both qualify for environments ≤ +85°C.

5. 4.Application Scenarios
6. Gigabit Ethernet Switches and Routers

Suitable for enterprise and industrial-grade Gigabit switches and routers. Quad-channel integration reduces PCB footprint; supports 1000BASE-T and PoE functionality.

2. PoE Power Sourcing Equipment (PSE) and Powered Devices (PD)

Supports IEEE 802.3at PoE standard (900 mA), suitable for PoE switches and injectors (PSE), as well as IP cameras, wireless APs, and other PD devices.

3. Industrial Ethernet and Edge Computing Gateways

-40°C to +85°C operating range covers industrial environments; 1500 VAC isolation ensures safety for industrial switches, edge gateways, and SCADA systems.

4. IP Cameras and Wireless Access Points (AP)

Low-profile SMD design is well-suited for PoE-powered IP cameras and wireless APs, enabling remote power and data transmission over a single cable.

5. Server Motherboards and Network Interface Cards

Suitable for server motherboards and Gigabit NICs. 1500 VAC isolation ensures signal integrity; SMD mounting is compatible with standard SMT production lines.

6. Frequently Asked Questions (FAQ)

Q1: Is VOOHU WHSG24719PT G pin-compatible with Würth 7490220122? Can it be replaced without a PCB change?

A: Yes. Both products use a 24-pin SMD package with 1.27 mm pin pitch and identical channel topology (4 channels, 1CT:1CT each). Direct substitution is possible without PCB redesign.

Q2: There is a PoE current difference (Würth 1000 mA vs VOOHU 900 mA). Does this affect the replacement?

A: For standard PoE applications (IEEE 802.3at, max 600 mA load current), VOOHU WHSG24719PT G's 900 mA capability is fully adequate. If the system design specifically utilizes Würth's 1000 mA (IEEE 802.3bt 4PPoE) full-power mode, evaluate the actual load current before finalizing the substitution.

Q3: What is the MOQ and lead time for VOOHU WHSG24719PT G?

A: Tape & Reel packaging at 350 pcs per reel. Sample orders ship within 48 hours, delivery within 7 days. For bulk pricing: TEL: +86 400 1048 018, WEB: www.voohuele.com.

Why Choose VOOHU?

One-Stop Sourcing: Connectors + Magnetics + Interface ICs — full support from component selection to small-batch production

Custom Solutions: Share your application requirements and budget; receive a tailored solution with dedicated technical support

Fast Development: Direct factory sales, rapid FAE response, efficient sampling — accelerate your time-to-market

Core Certifications: ISO9001, ISO14001, RoHS, REACH — two proprietary factories ensuring on-time delivery and quality

Visit us: China: www.voohu.cn  |  Global: www.voohuele.com  |  Technical Support: song.lei@wohu-tek.com

Download PDF:WHSG24719PT G