---
title: "Low-Pass Filter"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LOW_PASS_FILTER"
  data_integrity_hash: "9b4bea5d73857c19e49db805327fc620"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:LOW_PASS_FILTER"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/low-pass-filter.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/low-pass-filter"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-100 kHz cutoff frequency, -40°C to +85°C ambient temperature, 3.3-5.0 VDC supply voltage"
    unit: "Hz"
engineering_limits:
  max_safe_operating_point:
    value: 3
    unit: "dB"
    consequence: "Dielectric breakdown in capacitor elements at &gt;50 VDC, thermal expansion mismatch between ceramic substrate and solder joints at &gt;125°C, parasitic capacitance coupling &gt;5 pF between adjacent traces"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrostatic discharge (ESD) event exceeding 8 kV HBM"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated ESD protection diodes with 15 kV IEC 61000-4-2 rating and guard ring structures"
  - node_2:
      trigger: "Thermal cycling between -40°C and +125°C at 1000 cycles"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Copper pillar bump interconnects with underfill material having CTE of 12 ppm/°C"
bom_nodes:
  capacitor:
    type: "component"
    urn: "URN:CNFX:ME:CAPACITOR"
    interface_type: "physical-logic-coupled"
  resistor:
    type: "component"
    urn: "URN:CNFX:ME:RESISTOR"
    interface_type: "physical-logic-coupled"
  inductor-for-lc-filters:
    type: "component"
    urn: "URN:CNFX:ME:INDUCTOR_FOR_LC_FILTERS"
    interface_type: "physical-logic-coupled"
  pcb:
    type: "part"
    urn: "URN:CNFX:ME:PCB"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/low-pass-filter.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "20c1e8033ce647bfea3abff7d55b59e287a159e53cf79cb34c3dfa5f130bd054"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Low-Pass Filter

## 1. Technical Definition
An electronic filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-100 kHz cutoff frequency, -40°C to +85°C ambient temperature, 3.3-5.0 VDC supply voltage**. Failure boundary: **Cutoff frequency deviation &gt; ±5% from nominal value, insertion loss &gt; 3 dB at passband, phase shift &gt; 10° nonlinearity**, Mechanism: **Dielectric breakdown in capacitor elements at &gt;50 VDC, thermal expansion mismatch between ceramic substrate and solder joints at &gt;125°C, parasitic capacitance coupling &gt;5 pF between adjacent traces**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Electrostatic discharge (ESD) event exceeding 8 kV HBM | 8 | Gate oxide rupture in MOSFET switching elements causing permanent short circuit | Integrated ESD protection diodes with 15 kV IEC 61000-4-2 rating and guard ring structures |
| Thermal cycling between -40°C and +125°C at 1000 cycles | 8 | Solder joint fatigue cracking leading to intermittent electrical connection | Copper pillar bump interconnects with underfill material having CTE of 12 ppm/°C |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | Hz | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [PCB](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/pcb.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Solder Paste Printer**, **Pick-and-Place Machine**, **Reflow Oven**  
**Downstream Applications**: Audio Amplifiers, Radio Receivers, Signal Processing Units  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the typical cutoff frequency range for this low-pass filter?
**A**: Our low-pass filters typically support cutoff frequencies from 1Hz to 100MHz, with specific ranges depending on the capacitor and inductor values selected in the LC configuration.

### Q: How does the ferrite core inductor improve filter performance?
**A**: The ferrite core inductor provides high inductance with compact size, reduces core losses at high frequencies, and offers excellent temperature stability for consistent filtering performance in electronic applications.

### Q: Can this filter be customized for specific PCB layouts?
**A**: Yes, our low-pass filters can be customized with different capacitor types (ceramic, tantalum), resistor values, and inductor configurations to match specific PCB footprints, impedance requirements, and space constraints.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Low-Pass Filter](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/low-pass-filter)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: LOW_PASS_FILTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c395d588
