RJ45 Integrated Magnetics Connector: VOOHU SYT111B002HWA1D as a Replacement for Pulse JX0011D21NL

1. Competitor Product Overview (Pulse Electronics, a YAGEO company)

Pulse Electronics, now part of the YAGEO group, is a leading global supplier of magnetics and connectors. Its PulseJack™ series integrates an RJ45 connector with 10/100/1000BASE Ethernet magnetics. The JX0011D21NL referenced here is from the PulseJack Extended-Temperature (industrial) line: a single-port 1×1, 10/100BASE-TX integrated-magnetics RJ45 (ICM), 8-pin, with EMI shield fingers and no LED. It is fully IEEE 802.3 compliant over the entire -40 to +85°C range, offers enhanced EMI performance (Non-AutoMDIX / AutoMDIX), 260°C peak solder temperature and 1500 Vrms isolation, using the industry-standard RJ-45 pin-out compatible with existing PulseJacks.

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

Suzhou VOOHU Electronic Technology Co., Ltd. (VOOHU) supplies connectors, magnetics and interface ICs in one house. SYT111B002HWA1D is a single-port 1×1, 10/100BASE Tab-Down integrated-magnetics RJ45 (ICM), 8-pin, no LED, designed for the industrial -40 to +85°C range (operating and storage). It provides OCL ≥ 350 µH and 1500 V AC / 2250 V DC isolation, a PBT (UL94 V-0) housing, phosphor-bronze C5210 terminals with 6 µin gold on the contact area, and a nickel-plated C2680 shield; it is REACH & RoHS compliant. Its turns ratio, insertion/return loss, crosstalk, hi-pot and wide-temperature rating correspond one-to-one with the Pulse JX0011D21NL, making it a pin-to-pin alternative with stable supply and strong cost-performance.

3. Key Parameter Comparison

The table below uses the Pulse JX0011D21NL datasheet parameters as the baseline, with the corresponding VOOHU SYT111B002HWA1D specs filled in (only parameters specified by both and matchable one-to-one are listed).

Notes:

1. Qualifier basis: Pulse states most electrical figures as Typ (typical), while VOOHU states guaranteed Min/Max limits. At the same frequencies the return-loss (-20/-16/-12/-10 dB) and crosstalk (-40/-35/-30 dB) values are identical; VOOHU's guaranteed-limit basis is convenient for design-margin evaluation.
2. OCL: VOOHU specifies ≥ 350 µH @100 kHz/100 mV/8 mA DC; the Pulse JX0011D21NL datasheet does not separately state OCL, so it is omitted from the table.
3. Storage temperature: VOOHU specifies -40 to +85°C; Pulse does not state it. Both operate over the industrial -40 to +85°C range, so temperature margin is equivalent.
4. CMR frequency bands differ: VOOHU -30 dB Min (1–100 MHz); Pulse -30 dB Typ (1–50 MHz) and -20 dB Typ (50–130 MHz). Both are shown for reference; evaluate against your target band.
5. LED: the matched Pulse part is the non-LED version (JX0011D21NL). For a bi-color (green/yellow) version, Pulse offers JX0011D21BNL and VOOHU can quote an equivalent; this VOOHU part is non-LED per the drawing.
6. Drop-in notes: confirm pin assignment, PCB footprint and EMI grounding-finger geometry against both drawings before mass replacement.

4. Applications

1. Industrial Ethernet switches, gateways and fieldbus equipment operating over the wide -40 to +85°C range.
2. Machine-vision / industrial cameras, IP network cameras and security surveillance.
3. Building automation, power monitoring and rail-transit network interfaces with demanding temperature requirements.
4. 10/100M Ethernet ports of routers, gateways and embedded communication modules.

5. FAQ

Q1: Can VOOHU SYT111B002HWA1D directly replace Pulse JX0011D21NL?

A: Both are single-port 1×1, 10/100Base-TX Tab-Down integrated-magnetics RJ45 jacks (both non-LED). Their turns ratio, insertion loss, return loss, crosstalk, hi-pot and -40 to +85°C operating range correspond one-to-one or are better, so it serves as a pin-to-pin replacement. Please confirm PCB footprint, pin assignment and EMI grounding fingers against the drawings before mass production.

Q2: What is the difference between the Typ and Min/Max figures?

A: Pulse mostly states typical (Typ) values, whereas VOOHU states guaranteed limits (Min/Max). At the same frequencies the values are identical; VOOHU's guaranteed-limit basis is more convenient for evaluating design margin.

Q3: Is it suitable for wide-temperature industrial environments?

A: Yes. VOOHU's operating and storage temperatures are both -40 to +85°C, with OCL ≥ 350 µH (100 kHz/100 mV/8 mA), suitable for industrial Ethernet and other wide-temperature scenarios.

Q4: Do you offer samples and customization?

A: Yes. Sample orders ship within 48 hours and arrive within 7 days; customization is available per your application and budget. Technical support: TEL +86 400 1048 018, WEB www.voohuele.com, email 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