Characteristics
- Super small size
- 1.5 kV isolation voltage
- 350 µH OCL as per IEEE 802.3
- Operating temperature: -40 °C up to +105 °C
Reference Designs
Applications
- Ethernet 10/100/1000 Base-T
- Ethernet 2.5/5G and 10G Base-T
- Single Pair Ethernet
- Ultrasonic sensors
- g.fast
Products
4532
| Order Code | Datasheet | Downloads | Status | Data rate | Application | L (µH) | VT (V (RMS)) | n | PoE | Operating Temperature | L (mm) | W (mm) | H (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | 74930000 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | 10/100/1000 Base-T, 10/100 Base-T1 | Ethernet, Single Pair Ethernet | 350 | 1500 | 1:1 | – | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 74930100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | 10G Base-T, 1000 Base-T1 | Ethernet, Single Pair Ethernet | 120 | 1500 | 1:1 | – | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 74930130 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | 10/100/1G/10GBase-T | Ethernet, PoE | 110 | 1500 | 1:1 | PoE (up to 350 mA) | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 74930030 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | 10/100/1GBase-T | Ethernet, PoE | 350 | 1500 | 1:1 | PoE (up to 350 mA) | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 74930120 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | 10/100/1G/10GBase-T | Ethernet, PoE+ | 110 | 1500 | 1:1 | PoE+ (up to 600 mA) | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 749302010 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | – | Short distance sensing at high frequency | 300 | 400 | 1:4.5:4.5:1 | – | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 | |
![]() | 749302011 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | – | Long distance sensing at low frequency | 2000 | 400 | 1:4.5:4.5:1 | – | -40 °C up to +105 °C | 4.7 | 3.22 | 2.9 |
| Order Code | Datasheet | |
|---|---|---|
![]() | 74930000 | SPEC |
![]() | 74930100 | SPEC |
![]() | 74930130 | SPEC |
![]() | 74930030 | SPEC |
![]() | 74930120 | SPEC |
![]() | 749302010 | SPEC |
![]() | 749302011 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Data rate | Application | L (µH) | VT (V (RMS)) | n | PoE | Operating Temperature | L (mm) | W (mm) | H (mm) | Samples |
|---|
Long Reach High-Speed Communication with WE-STST Transformers
As industries continue to demand reliable and efficient long-distance data transmission, the need for high-performance transformers in DSL and ISDN applications remains critical. Würth Elektronik’s WE-STST signal transformers are optimized for "long reach high speed" applications, offering exceptional performance in extending data coverage without compromising speed or integrity.
Key Use Cases
- SHDSL Technology:WE-STST series supports Symmetrical High-Speed Digital Subscriber Line (SHDSL) technology, which enables long-distance communication with consistent, high-quality signal transmission.
- Industrial Communication: Ideal for connecting devices across large industrial plants where stable data communication is essential.
- Telecom Infrastructure: Provides reliable signal transformation for telecommunications systems requiring extended reach.
Product Highlights
- Low insertion loss for efficient signal transmission
- High galvanic isolation to ensure safety and reliability
- Supporting long signalling distances
- Also suitable to use for DSL and ISDN

Videos
Würth Elektronik Webinar: Anticipate EMC with LTSPICE
Videos
Würth Elektronik Webinar: Single Pair Ethernet filter design for industry
Videos
Würth Elektronik Webinar: Single Pair Ethernet - Filter Design and Power over Data Line
Videos
Würth Elektronik Webinar: Single Pair Ethernet filter design for industry







