RJ45 Integrated Magnetics Connector: VOOHU SYT111B002BA2A1D as a Replacement for HanRun HR911105A

1. Competitor Product Overview (HanRun Electronics)

HanRun (HanRun Electronics Company Limited) is a connector and magnetics manufacturer based in Zhongshan, Guangdong, China. The HR911105A is a single-port (1×1) tab-down RJ45 jack with integrated magnetics, targeting 10/100Base-T NIC and Ethernet applications, with a 1CT:1CT transformer and green (left) / yellow (right) LEDs. It specifies 350µH Min OCL, ≤1.0dB insertion loss, 2250V DC isolation, 750-cycle durability, 0~+70°C operating and -40~+85°C storage temperature; housing PA66 GF (UL94V-0), shield 0.20mm nickel-plated brass, contacts phosphor bronze (0.35mm, 30µin gold / 50µin nickel in the contact area). The datasheet states it meets or exceeds IEEE 802.3 requirements and is a UL Recognized Component (File # E330599).

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

The VOOHU SYT111B002BA2A1D, designed and manufactured by Suzhou VOOHU Electronic Technology Co., Ltd., is a tab-down single-port (1×1) RJ45 jack with integrated magnetics for 10/100Base-T Ethernet. It matches or equals the HR911105A on OCL (350µH), turns ratio (1CT:1CT), return loss (identical across all four bands), crosstalk (identical -40/-35/-30dB), insertion loss (≤1.0dB), isolation (2250V DC), body width (16.00mm), durability (750 cycles), storage temperature (-40~+85°C) and green/yellow LEDs (green left, yellow right, 568/585nm, 20mA). It further offers a wider operating temperature — VOOHU -40~+85°C (industrial) vs 0~+70°C (commercial) — and tighter CMR in the 50~100MHz band (-30dB vs -20dB). REACH and RoHS compliant, it is a replacement candidate for the HR911105A.

3. Key Parameter Comparison

The table below uses the HanRun HR911105A datasheet parameters as the baseline, with the corresponding VOOHU SYT111B002BA2A1D specs filled in (only parameters specified by both and matchable one-to-one are listed).

Notes:

1. All parameters are taken strictly from both datasheets (HanRun HR911105A / VOOHU SYT111B002BA2A1D); only items specified by both and matchable one-to-one are listed.

2. Identical key items: OCL (both 350µH), turns ratio (both 1CT:1CT), return loss (identical across four bands), crosstalk (identical across three bands), isolation (both 2250V DC), durability (both 750 cycles), storage temperature (both -40~+85°C), LEDs (green 568nm / yellow 585nm, 20mA).

3. VOOHU key advantage — operating temperature: VOOHU -40~+85°C (industrial) vs 0~+70°C (commercial); VOOHU better suits industrial, outdoor and automotive wide-temperature environments. Storage temperature is identical.

4. CMR: the competitor specifies -30dB (1~50MHz) and -20dB (50~150MHz); VOOHU specifies -30dB Min across 1~100MHz (tighter in the 50~100MHz band). Both meet Ethernet requirements.

5. Isolation test conditions differ slightly: competitor 2250V DC/0.5mA/60s; VOOHU 2250V DC/1mA/6s plus an additional 1500V AC rating. Both are rated at 2250V DC.

6. Contact-area gold plating differs: competitor 30µin gold / 50µin nickel, VOOHU 6µin gold; both use 0.35mm phosphor bronze contacts with 750-cycle durability. Customers with specific gold-thickness needs should confirm optional plating with VOOHU.

7. Both housings are UL94V-0; the base resin differs (competitor PA66 GF / VOOHU PBT), both common engineering plastics.

8. Return-loss, crosstalk and CMR band divisions are labeled slightly differently by each side; values are recorded as published without conversion.

9. The competitor additionally specifies unmating force (5 lbs Max), plug-to-jack retention (12 lbs Min) and storage humidity (30~85%), which VOOHU does not list separately and are therefore omitted; VOOHU's datasheet includes a wave-solder profile (Tip 260±5°C, Sn96.5/Ag3/Cu0.5).

10. Pinout and footprint compatibility: both are 16.00mm-wide single-port tab-down parts with 8×Ø0.89 signal pins, 4×Ø1.02 LED pins and Ø1.63×2 + Ø3.2~3.25×2 posts; PCB hole pattern and panel cutout are closely matched. Final confirmation against the mechanical drawing before mass production is recommended.

4. Applications

1. 10/100M Ethernet ports on network interface cards (NICs), desktop and server motherboards.

2. Single-port RJ45 on switches, routers, home gateways and ONUs.

3. Wide-temperature scenarios such as industrial Ethernet, security surveillance, POS and self-service terminals (VOOHU -40~+85°C especially suitable).

4. Embedded networked devices such as IP cameras, access control and building automation.

5. Single-port RJ45 applications requiring integrated magnetics with green/yellow status LEDs.

5. FAQ

Q1: Can the VOOHU SYT111B002BA2A1D replace the HanRun HR911105A?

Both are single-port (1×1) tab-down 10/100Base RJ45 jacks with integrated magnetics (green-left / yellow-right LEDs), matching on OCL (350µH), turns ratio (1CT:1CT), return loss, crosstalk, isolation (2250V DC), body width (16.00mm) and durability (750 cycles), with matching PCB hole pattern and panel cutout, so the VOOHU part is a replacement candidate. Confirm pin compatibility against the actual PCB footprint and verify with samples before production.

Q2: What is the main difference?

Operating temperature: VOOHU is -40~+85°C (industrial) vs 0~+70°C (commercial), giving VOOHU a wider range. Other core electrical and mechanical specs are highly consistent; VOOHU is also tighter on CMR in the 50~100MHz band (-30dB vs -20dB). Note the contact gold-plating difference (VOOHU 6µin vs competitor 30µin).

Q3: Is it IEEE 802.3 compliant?

Yes. Both are 10/100Base-T magnetics with 350µH Min OCL and 2250V DC isolation, meeting IEEE 802.3 requirements for 10/100Base-T.

Q4: Are samples available for evaluation?

Samples are available for evaluation, and selected parts are free of charge. Our FAE team will be glad to confirm the options for your project.

Q5: How can I get more information or technical support?

Send your question through ourrequest form. Our FAE team can suggest suitable parts and help check the design, such as the PCB footprint, panel cutout and LED configuration.

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:magnetics and connectors direct from the manufacturer, rapid FAE response, efficient sampling, shorter time-to-market.

Core qualifications:ISO 9001 and ISO 14001 certified; RoHS and REACH compliant (third-party test reports); own factories in Mianyang (magnetics) and Dongguan (connectors).

For more information, visit VOOHU: China www.voohu.cn | Overseas www.voohuele.com. Our FAE team can suggest suitable parts and help check the design:Request samples