VOOHU WH290Z019D0S01 Replaces Molex 74441-0001 — SFP+ Connector Comparison

1. Competitor Product Overview (Molex)

Molex is a leading global supplier of connectors and interconnect solutions (drawing entity: Molex Electronic Technologies, LLC; a Koch Industries company). The Molex 74441-0001 compared here belongs to the 74441 "Z-Axis Pluggable PCB Connector" series — a 20-circuit, 0.80 mm-pitch board-mount SFP connector compliant with the SFP MSA, used to receive the gold-finger edge of an SFP transceiver. Its housing is high-temperature glass-filled thermoplastic (UL94V-0, black); terminals are copper alloy; the contact area is 0.38 μm (min) gold over nickel and the solder feet are 2.54 μm (min) tin over nickel; key dimensions A/B/C/D are 1.10 / 11.00 / 9.40 / 9.60 mm. This is a customer/sales drawing (SD-74441-001, REV AC2) that gives mechanical dimensions, materials and plating, but does not list electrical/environmental ratings such as current, withstand voltage, operating temperature or mating durability.

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

Suzhou VOOHU Electronic Technology Co., Ltd. is an original manufacturer combining connectors, magnetics and interface ICs. VOOHU WH290Z019D0S01 is an SFP+ 1x1 board-mount connector — also 20-position, 0.80 mm pitch, SFP+ MSA-compliant — with key dimensions A/B/C/D identical to the Molex 74441-0001 (1.10 / 11.00 / 9.40 / 9.60 mm) and a matching recommended PCB layout (Ø1.55 locating holes, 0.50×2.00 pads, 0.80 mm pitch), enabling a drop-in pin-and-footprint replacement. Its housing is high-temperature LCP (UL94V-0, black); contacts are phosphor bronze plated with 15 μ″ (≈0.38 μm) gold on the mating area, gold flash on the solder tails, over an overall 50 μ″ (≈1.27 μm) nickel underplate. Beyond mechanicals and plating, the VOOHU datasheet also specifies electrical and environmental ratings: current 0.5 A (max), contact resistance 20 mΩ (max, initial), dielectric withstanding 300 V AC, durability 100 cycles (min), insertion/extraction force 40 N / 11.5 N (max), operating temperature −40 to +95 °C, storage −55 to +105 °C, reflow 255–265 °C for 5–10 s; RoHS and REACH compliant.

3. Key Parameter Comparison

The table below uses the Molex 74441-0001 customer drawing (SD-74441-001) as the baseline, with the corresponding VOOHU WH290Z019D0S01 specs filled in (only parameters specified by both and matchable one-to-one; electrical/environmental items absent from the Molex customer drawing are listed in the Notes).

Notes:

1. Plating conversion: 15 μ″ ≈ 0.38 μm. Both parts use the same contact-area gold thickness (~0.38 μm gold over nickel); the solder-foot finish differs — Molex is tin (2.54 μm min), VOOHU is gold flash. Both are SMT-solderable; confirm per your process.
2. Housing: both are high-temperature thermoplastic, UL94V-0, black; VOOHU further specifies LCP (liquid-crystal polymer) with reflow up to 255–265 °C for 5–10 s.
3. The following VOOHU-specified parameters are NOT in the 1:1 table because the Molex customer drawing (SD-74441-001) does not list them: current 0.5 A (max), contact resistance 20 mΩ (max, initial), dielectric withstanding 300 V AC, durability 100 cycles (min), insertion/extraction force 40 N / 11.5 N (max), operating temperature −40 to +95 °C, storage −55 to +105 °C. Refer to the Molex product specification (PS) for matching figures.
4. The Molex drawing also states solder-foot coplanarity of 0.10 mm (20-circuit); the VOOHU drawing does not specify coplanarity, so it is excluded from the table.
5. The 74441 series also covers SFP / XFP / XENPAK / XPAK / X2 (different circuit counts); this comparison addresses only the SFP version 74441-0001 (20 circuits).
6. All values are taken verbatim from both datasheets (VOOHU REV A0; Molex SD-74441-001 REV AC2). Final compatibility of pinout, packaging and coplanarity should be confirmed with samples.

4. Applications

1. Data communications / optical-module interface: board-mount receptacle for SFP/SFP+ transceivers in switches, routers and fiber NICs.
2. Telecom and data-center equipment: host-board connection for 10G/25G SFP+ ports.
3. Industrial Ethernet and security/surveillance: network and transmission gear needing compact, pluggable optical/electrical modules.
4. Optical-module makers: the board-side connector inside an SFP cage that mates with the transceiver gold fingers.

5. FAQ

Q: Can VOOHU WH290Z019D0S01 directly replace Molex 74441-0001?

A: Both are 20-position, 0.80 mm-pitch, SFP MSA board connectors with identical A/B/C/D dimensions and recommended PCB layout and the same contact-area gold thickness, so it works as a drop-in pin-and-footprint replacement. Validate coplanarity and mating fit with samples.

Q: Are the platings equivalent?

A: Contact areas are both ~0.38 μm gold over nickel (VOOHU 15 μ″) — equivalent. Solder feet differ: Molex tin 2.54 μm vs VOOHU gold flash; both are SMT-compatible, choose per your soldering process.

Q: What about VOOHU's temperature and electrical ratings?

A: VOOHU specifies operating −40 to +95 °C, storage −55 to +105 °C, current 0.5 A, contact resistance 20 mΩ, 300 V AC withstand and 100 mating cycles; the Molex customer drawing does not list these — refer to Molex's product spec (PS).

Q: Are samples and customization available?

A: Yes. VOOHU ships sample orders within 48 hours (delivery within 7 days) and supports customization. Technical support: song.lei@voohu.cn.

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