LAN Transformer: VOOHU WHSG48002PG vs. Pulse HXB6014HLT Comparison

1. Competitor Product Overview (Pulse Electronics)

For dual-port Gigabit PoE interfaces, Pulse HXB6014HLT is a 48-pin SMD magnetic module for 1000BASE-T and four-pair power delivery. It is rated from -40°C to +85°C, lists 600 mA per pair for PoE, and specifies 1500 Vrms primary-to-secondary isolation. Its 27.80 × 15.20 × 7.20 mm body and 1.02 mm lead pitch are the mechanical boundaries to establish before any alternative is considered.

2. VOOHU Replacement Overview (Suzhou VOOHU Electronic Technology Co., Ltd.)

VOOHU WHSG48002PG is also a 48-pin SMD module with two 100/1000 BASE-T magnetic channels. Its stated turns ratio is 1CT:1CT ±5%, and its OCL is 350 µH at 100 kHz, 0.1 V, and 15 mA DC bias. The body length and width are close to the Pulse option, while its published pad layout is 16.50 mm in the longitudinal direction versus 15.90 mm for the Pulse layout. That makes WHSG48002PG a sound sample-and-review candidate, not an unverified drop-in substitution.

3. Key Parameter Comparison

Both parts address dual-port Gigabit Ethernet and PoE interfaces, but their test bias, loss bands, pad layouts, and PoE expressions are not identical. The table keeps only values that can be compared from the two supplied source documents so the validation work is visible upfront.

Notes:

1. The 48-pin form and body length/width are close, but the published longitudinal pad dimensions are 15.90 mm and 16.50 mm. Check the PCB Gerber, stencil openings, and enclosure clearance together; a similar outline alone does not establish a drop-in replacement.
2. The OCL bias conditions are 8 mA and 15 mA, and the insertion-loss bands/formulae differ. Re-test return loss and insertion loss with the target PHY, cable, and fixture instead of comparing only the 350 µH value or a single loss number.
3. Pulse specifies 600 mA per pair and 60 W four-pair PoE+. VOOHU specifies IEEE 802.3at performance and 900 mA current capability. The source documents do not state the two claims under the same power and temperature-rise conditions, so validate the PSE/PD architecture, ambient temperature, and full-load thermal behavior.
4. 1500 Vrms and 1500 VAC at 1 mA for 60 s indicate a similar isolation class, but they are not stated as the same test method. Reconfirm against the exact certification or safety test condition for the project.
5. Both documents use tape-and-reel packaging. Pulse lists 350 pcs/reel for the HXB601x group, and VOOHU lists 350 pcs/reel for WHSG48002PG; confirm label format, reel orientation, and delivery packaging on the purchase order.

4. Applications

1. Dual-port Gigabit PoE switches and PSE port cards: the 48-pin dual-port format suits dense port layouts; for four-pair power, evaluate pair current, magnetic temperature rise, and the thermal path together.
2. Industrial Ethernet gateways: both parts cover -40°C to +85°C operation for dual-Gigabit uplink or downlink interfaces; include surge protection, grounding, and the enclosure in EMC validation.
3. Wireless APs and security access equipment: dual-Gigabit interfaces often carry both data and PoE, making prototype comparison of link margin, power recovery, and full-load temperature rise worthwhile.
4. Building control and edge-computing terminals: when interface-board space is tight, first check stack-up clearance using the close body length/width, then adjust the PCB footprint to each part's own recommended layout.
5. Maintenance alternatives for installed boards: WHSG48002PG can enter the candidate list, but only after pin mapping, pad layout, signal-integrity, and PoE load tests support a production decision.

5. FAQ

Q1: Can WHSG48002PG replace Pulse HXB6014HLT without a board change?

The supplied material does not support that conclusion. The body length/width and 48-pin form are close, but the recommended pad layout, height, and PoE statements differ. Compare the schematic and footprint pin by pin, then verify soldering, link behavior, and temperature rise with samples.

Q2: Are the PoE capabilities equivalent?

They should not be treated as equivalent without validation. Pulse states 600 mA per pair and 60 W four-pair PoE+, while VOOHU states IEEE 802.3at performance and 900 mA current capability. The source documents do not align the claims to the same power, ambient-temperature, and temperature-rise conditions.

Q3: Are the temperature grades the same?

Both list -40°C to +85°C operation. Storage differs: Pulse lists -50°C to +125°C and VOOHU lists -40°C to +125°C. Review the original Pulse requirement when low-temperature storage or transport is critical.

Q4: What should be checked first in sample validation?

Start with schematic pin mapping and the recommended PCB pads, then test 1000BASE-T insertion/return loss, the required 1500 V isolation condition, and PoE full-load current/temperature rise. Follow with system EMC and reliability validation.

Q5: What is the WHSG48002PG pack quantity?

VOOHU lists 350 pcs per reel and 1400 pcs per export carton. Confirm MOQ, lead time, reel orientation, and label requirements with VOOHU sales or FAE for the specific project.

Why VOOHU?

One-stop sourcing: connectors + magnetics + interface chips, full support from selection to small-batch production.

Custom solutions: just share your application requirements and budget to get a tailored solution with professional technical support.

Fast development: direct from the manufacturer, rapid FAE response, efficient sampling, shorter time-to-market.

Core qualifications: ISO9001, ISO14001, RoHS, REACH; two in-house factories ensure delivery and quality.

For more information, visit VOOHU: China www.voohu.cn | Overseas www.voohuele.com | Technical support: song.lei@voohu.cn

Replacement Cross-Reference

Pulse HXB6014HLT and VOOHU WHSG48002PG are 48-pin SMD dual-port Gigabit Ethernet magnetic modules for 1000BASE-T/PoE designs. Their outer length and width are close, but the published PCB pad layouts and PoE current expressions differ. Treat WHSG48002PG as an evaluation candidate rather than a verified pin-to-pin replacement.