VOOHU WH291Z02SD0S02 as a Replacement for Molex 74754-0101: Single-Port SFP+ 1×1 Cage Comparison

1. Competitor Product Overview (Molex, LLC)

Molex, LLC is a globally recognized supplier of connectors and interconnect solutions. Its High-Speed EMI Cages series is widely used for optical-module interfaces. The 74754-0101 belongs to the 74754 series and is a single-port SFP+ 1×1 cage assembly featuring a spring-finger bezel gasket and 3.05 mm press-fit (through-hole compliant) pins, rated to 28.0 Gbps. The housing is copper alloy, horizontally mounted with a closed-top thermal structure, tray-packaged, and used for module-to-board connection compatible with standard SFP+ transceivers. Note that this part number is now Obsolete, so long-term availability is uncertain.

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

Suzhou VOOHU Electronic Technology Co., Ltd. (VOOHU) is a manufacturer focused on Ethernet connectivity and magnetics, with a product range covering RJ45 connectors, SFP connectors/cages, LAN transformers, and common-mode chokes. WH291Z02SD0S02 is a single-port SFP+ 1×1 cage positioned identically to the Molex 74754-0101: a horizontal, press-fit (compliant-pin) SFP+ cage with a front-end EMI spring-finger gasket and tray packaging. The cage is stainless steel with nickel plating and 0.25 mm wall thickness, rated for -55°C to +85°C, with a body of approximately 48.70(L) × 14.00(W) × 8.95(H) mm, making it a drop-in replacement candidate for the obsolete 74754-0101.

3. Key Parameter Comparison

The table below uses the Molex 74754-0101 (baseline) datasheet parameters as the baseline, with the corresponding VOOHU WH291Z02SD0S02 specs filled in (only parameters specified by both and matchable one-to-one are listed).

Notes:

1. Operating temperature: VOOHU WH291Z02SD0S02 is explicitly rated -55°C to +85°C; the Molex 74754-0101 datasheet does not list an operating-temperature range, so it is not included in the table.
2. Data rate: Molex 74754-0101 is rated 28.0 Gbps (SFP+/SFP28 class); the VOOHU drawing does not state a separate data rate. The SFP+ cage is a universal mechanical interface, and actual throughput depends on the transceiver and PCB design used.
3. Press-fit pins: Molex specifies 3.05 mm press-fit pins; the VOOHU drawing specifies press-fit through-hole mounting with optional through-hole plating (THRU HOLES, PLATING OPTIONAL) and does not give a press-fit pin length, so it is not forced into the table.
4. Body dimensions: The VOOHU drawing gives a body of approx. 48.70(L) × 14.00±0.1(W) × 8.95±0.15(H) mm, a recommended panel opening of 15.45±0.1 mm, and press-fit rear legs; the Molex datasheet does not provide corresponding mechanical dimensions, so these are not itemized. Verify the panel opening and PCB hole pattern against both drawings/samples before assembly.
5. Availability: Molex 74754-0101 is currently Obsolete; VOOHU WH291Z02SD0S02 is in active production and can serve as a replacement.
6. Light pipe & thermal: Both are no-light-pipe (Light Pipes = 0), closed-top cages; Molex states this explicitly, and the VOOHU drawing shows a closed-top cage with no light pipe.
7. Compatibility: Verify the pin/hole pattern and panel compatibility against physical samples and the recommended PCB layout — especially the press-fit hole diameters and the EMI spring-finger panel opening — and validate with a trial fit before volume replacement.

4. Applications

1. Data communication & optical-module interfaces: SFP+/SFP28 cage receptacles on switches, routers, and server NICs.
2. Telecom & base-station equipment: EMI-shielded high-speed optical ports on panels.
3. Industrial Ethernet & security: fiber uplink ports on industrial switches, NVRs, and aggregation devices.
4. Data centers: 10G/25G optical ports on ToR/aggregation switches.

5. FAQ

Q1: Can VOOHU WH291Z02SD0S02 directly replace Molex 74754-0101?

Both are single-port SFP+ 1×1, horizontal, press-fit through-hole cages with a spring-finger EMI bezel gasket and tray packaging, so they are positioned identically and the VOOHU part can replace the obsolete 74754-0101. Because the two vendors' mechanical baselines differ, verify the PCB press-fit hole pattern and panel opening against both drawings and validate with a trial fit before switching.

Q2: What are the material/plating differences?

The Molex housing is copper alloy; the VOOHU cage is stainless steel with nickel plating and 0.25 mm wall thickness. Nickel-plated stainless steel offers good structural strength and corrosion resistance, with EMI shielding provided by the front spring fingers.

Q3: What data rate is supported?

The SFP+ cage is a universal mechanical interface; Molex rates it at 28.0 Gbps, and the VOOHU cage likewise accepts SFP+/SFP28 modules. Actual throughput depends on the chosen module and high-speed PCB design.

Q4: Are samples and customization available?

Yes. VOOHU sells direct from the factory and supports custom designs; sample orders typically ship within 48 hours and arrive within 7 days. For more information visit www.voohuele.com or contact 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