---
source: huluic.cn
data_as_of: 2026-10-16T13:59:10.400Z
max_staleness: 1h
cached: false
source_url: https://huluic.cn/product/rfmi/SF1143B-1/qbAO2JJz
---

# 元件详情：SF1143B-1

- **型号**: SF1143B-1
- **oneic 编号**: 11950-SF1143B-1
- **厂商**: RFMi
- **描述**: Buy now, ships today. SF1143B-1 - 315MHz Frequency IF, SDARS RF SAW Filter (Surface Acoustic Wave) 15.1dB 4.53MHz Bandwidth 10-SMD, No Lead from RFMi. View datasheets, pricing and availability from DigiKey now!
- **分类**: 频率控制元件 / 谐振器 / 声表面波谐振器

## 规格参数

### 规格参数

| 参数 | 值 |
| --- | --- |
| 系列 | - |
| 额定等级 | - |
| 带宽 | 4.53MHz |
| 包装方式 | Tape & Reel (TR), Tape & Reel (TR), Bag |
| 零件状态 | Active |
| 应用 | IF, SDARS |
| 高度（最大） | 0.079" (2.00mm) |
| 制造商全称 | RFMi |
| 安装类型 | Surface Mount |
| 插入损耗 | 15.1dB |
| 封装形式 | 10-SMD, No Lead |
| 尺寸/外形 | 0.276" L x 0.197" W (7.00mm x 5.00mm) |
| 中心频率 | 315MHz |
| 基础产品编号 | SF1143 |

## 实时报价

> 报价接口（需 API Key）：`https://r.huluic.cn/v2/offers/SF1143B-1`

> 现货购买：[huluic.cn 产品页](https://huluic.cn/product/rfmi/SF1143B-1/qbAO2JJz?utm_source=huluic&utm_medium=md&utm_campaign=geo)

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数据来源：[huluic.cn](https://huluic.cn)