# TS8121CM HF (Component)

## Description

350µH LAN 10/100 Base\-T, Power over Ethernet \(PoE\) Pulse Transformer 1:1CT Transmitter, 1:1CT Receiver Surface Mount

100BASE\-TX Ethernet magnetic module providing signal isolation and Power over Ethernet \(PoE\) support for single\-port Ethernet interfaces\. The TS8121CM HF features 350 µH minimum inductance, 1500 Vrms primary\-to\-secondary isolation, up to 350 mA PoE current per pair, and \-40°C to \+85°C operation, making it suitable for Ethernet networking equipment, switches, routers, and PoE\-enabled devices\. \#Ethernet \#100BASE\-TX \#PoE \#MagneticModule \#PulseElectronics

## Component Details

- **Owner:** silicon\-yard
- **Created:** 8/31/2026
- **Last Updated:** 8/31/2026
- **Visibility:** Public
- **Manufacturer Name:** Pulse Electronics
- **Part Type:** Transformer
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/7bcf95f2f3fa924d34acf8eeef4270a62d7bf438c2e37951b8fa8a7b84410e21\.pdf
- **Manufacturer Part Number:** TS8121CM HF
- **Mount:** Surface Mount
- **Symbol Style:** parametric\-v1
- **License:** https://creativecommons\.org/licenses/by/4\.0/
- **Used in:** 6 projects

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Digi\-Key](https://www.digikey.com/en/products/detail/pulse-electronics/TS8121CM-HF/16517248) | N/A | N/A |

- **Part Type:** Transformers
- **MPN:** TS8121CM HF
- **Mount Type:** Surface Mount
- **Package / Case Code:** Module
- **Pin Count:** 16
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | PRI1\_1 | Unspecified |
| 2 | PRI1\_2 | Unspecified |
| 3 | PRI1\_3 | Unspecified |
| 4 | NC\_1 | Unspecified |
| 5 | NC\_2 | Unspecified |
| 6 | PRI2\_1 | Unspecified |
| 7 | PRI2\_2 | Unspecified |
| 8 | PRI2\_3 | Unspecified |
| 9 | SEC2\_1 | Unspecified |
| 10 | SEC2\_2 | Unspecified |
| 11 | SEC2\_3 | Unspecified |
| 12 | NC\_3 | Unspecified |
| 13 | NC\_4 | Unspecified |
| 14 | SEC1\_1 | Unspecified |
| 15 | SEC1\_2 | Unspecified |
| 16 | SEC1\_3 | Unspecified |

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*Generated from [https://flux\.ai/silicon\-yard/ts8121cm\-hf\~nu](https://flux.ai/silicon-yard/ts8121cm-hf~nu)*