SFP Cage: VOOHU WH81-111-Y0002-1 as a Replacement for Pulse SFPCAGE002-L

Competitor Product Overview (Pulse Electronics (a YAGEO company))

Pulse Electronics (a YAGEO company) is a well-known global maker of magnetics and connectors, spanning LAN transformers, PoE magnetics, antennas and interconnects such as SFP cages. The SFPCAGE002-L referenced here (drawing title "SFP CAGE 1 BY 1 PRESSFIT") is a 1×1 single-port press-fit SFP shielding cage, built from a Cage Top and Cage Bottom (both copper alloy, nickel-plated), following the SFP MSA form factor, with a cage body of about 48.80×14.50×9.47mm and marked RoHS Compliant, widely used in the SFP slots of switches, fiber transceivers and data-communication equipment.

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

Suzhou VOOHU Electronic Technology Co., Ltd. (VOOHU) is an original manufacturer integrating connectors, magnetics and interface ICs, with two in-house factories, ISO9001 / ISO14001 certification and RoHS / REACH compliance. The WH81-111-Y0002-1 (drawing title "SFP 1X1 SHELL-2K, press-fit") is a 1×1 single-port press-fit SFP shielding cage; its shell is copper alloy 0.25mm thick, following the SFP MSA form factor, with a cage body of about 48.70×14.50×9.45mm, a bezel opening of 15.25/16.25mm and a 3.50mm bezel-to-PCB height, mounted by press-fit (solderless). Its structure and dimensions fully correspond to the Pulse SFPCAGE002-L, making it a drop-in form-factor replacement.

3. Key Parameter Comparison

The table below uses the Pulse SFPCAGE002-L datasheet parameters as the baseline, with the corresponding VOOHU WH81-111-Y0002-1 specs filled in (only parameters specified by both and matchable one-to-one are listed).

Notes:

1.  All parameters above are taken from items explicitly marked on both drawings and matchable one-to-one. Both cages follow the SFP MSA form factor, so cage length/width/height, bezel opening and bezel-to-PCB height essentially match, providing a basis for form-factor interchange.
2.  Plating: the Pulse drawing specifies a nickel-plated shell; the VOOHU drawing specifies copper alloy 0.25mm thick but does not state the plating on the drawing. Please confirm the plating (nickel / anti-oxidation) with VOOHU before mass production.
3.  Structure: Pulse is a two-piece design (Cage Top + Cage Bottom, both copper alloy, nickel-plated); VOOHU is a press-fit cage shell, copper alloy 0.25mm thick.
4.  Recommended PCB thickness: VOOHU recommends 2.36mm (minimum 1.57mm); the Pulse drawing notes a PCB layout thickness of 3.0mm. Follow each vendor's recommended layout for press-fit holes / pads, and verify against physical samples before mass production.
5.  Height reference differs slightly: Pulse also lists an overall height (with bezel/board) of 10.40±0.10mm; the height row here compares the cage body height (≈9.45–9.47mm).
6.  Both are standard 1×1 SFP press-fit cages; VOOHU can customize versions with a light pipe, EMI spring fingers, SMT/press-fit mounting, 1×1 to 1×N, and different rates such as SFP/SFP+/SFP28.

8. Applications

9.  SFP/SFP+ optical-module slots of switches, routers and fiber transceivers.
10.  Optical-interconnect ports of servers, storage and data-center equipment.
11.  SFP optical/electrical interfaces of industrial switches, security transmission and telecom access equipment.
12.  SFP cage positions that need EMI shielding and heat dissipation (press-fit is solderless and easy to rework/replace).

14. FAQ

Q1: Can the VOOHU WH81-111-Y0002-1 replace the Pulse SFPCAGE002-L?

Both are 1×1 SFP press-fit shielding cages following the SFP MSA form factor. Cage length (≈48.7/48.8), width (14.50), height (≈9.45/9.47), bezel opening (15.25/16.25) and bezel-to-PCB height (3.50) essentially match, and the press-fit mounting is the same, providing a basis for form-factor interchange. Please verify press-fit hole positions and bezel fit against physical samples before mass production.

Q2: What are the advantages of press-fit over soldered mounting?

Press-fit uses compliant pins pressed into PCB plated through-holes — no soldering, no reflow — for fast assembly and easy rework/replacement, especially suitable for thick boards and high-density optical-port cards.

Q3: Are there differences in plating / material?

Both shells are copper alloy. The Pulse drawing specifies nickel plating; the VOOHU drawing specifies copper alloy 0.25mm thick but does not state the plating — please confirm the plating (nickel / anti-oxidation) with VOOHU before mass production.

Q4: Do you support light pipe, EMI spring fingers or multi-port versions?

Yes. VOOHU can customize a light pipe, EMI spring fingers, SMT/press-fit mounting, 1×1 to 1×N, and different rates such as SFP/SFP+/SFP28, with samples and technical support. Sample orders ship within 48 hours and arrive within 7 days. Technical support: song.lei@voohu.cn; WEB: www.voohuele.com; TEL: +86 400 1048 018.

Q5: What about environmental compliance?

The Pulse drawing is marked RoHS Compliant; VOOHU, as an original manufacturer, offers products compliant with RoHS and REACH.

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