WE4-3F3430 Equivalent & Substitute Parts Reference

Part Overview

The WE4-3F3430 is a through-beam optical sensor manufactured by SICK, Inc., designed for photoelectric detection applications with a sensing range of 0" to 157.480" (0m to 4m). This sensor operates with PNP dark-ON output configuration, 10V to 30V supply voltage, and features red light source (650nm) with IP66/IP67 ingress protection rating.

The WE4-3F3430 is classified as Obsolete product status. Locating equivalent or substitute components is necessary to maintain system functionality, ensure continued availability, and support ongoing maintenance and replacement requirements for installed applications.

Substiute Parts

WE4-3F3430

SICK, Inc.In Stock: 1045WE4-3F3430 Datasheet

Current PartRFQ

WSE4FP-84161100A00

SICK, Inc.In Stock: 1187WSE4FP-84161100A00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WE4-3F3430 is determined by the following critical parameters that must be maintained or exceeded:

Core Functional Parameters:

• Sensing method: Through-beam optical detection
• Supply voltage compatibility: 10V ~ 30V range
• Response time: 500µs
• Ingress protection: IP66/IP67 minimum
• Operating temperature range: -40°C ~ 60°C
• Connection method: Cable with connector
• Light source type: Red wavelength (635nm ~ 650nm acceptable range)

Output Configuration Consideration: The original WE4-3F3430 specifies PNP dark-ON output. Substitute parts must provide PNP output capability or push-pull output with selectable PNP mode to ensure compatibility with existing control circuits.

Sensing Distance: The original part provides 0m ~ 4m range. Substitute parts with extended range (0m ~ 10m) remain compatible as they cover the original operating distance and provide additional capability margin.

Parameter Comparison

Engineering Selection Recommendations

WSE4FP-84161100A00 is the manufacturer-recommended substitute for WE4-3F3430.

Basis for Selection:

1. Product Status Alignment: The substitute part WSE4FP-84161100A00 carries Active product status, ensuring ongoing manufacturer support, availability, and supply chain continuity compared to the Obsolete WE4-3F3430.

2. Electrical Compatibility: Both parts operate within identical supply voltage range (10V ~ 30V) and maintain the same response time specification (500µs), ensuring direct integration into existing power distribution and signal processing circuits.

3. Environmental Compliance: Both parts meet IP66/IP67 ingress protection and operate across the identical temperature range (-40°C ~ 60°C), maintaining environmental sealing and thermal performance requirements.

4. Optical Performance: Red light source wavelengths (635nm vs. 650nm) fall within acceptable industrial red spectrum range for through-beam detection applications. Both wavelengths provide equivalent optical performance for standard target detection.

5. Output Configuration: The substitute part provides push-pull output with selectable NPN/PNP modes, offering PNP dark-ON operation compatible with the original circuit configuration while providing additional flexibility for alternative output modes.

6. Enhanced Sensing Range: The extended sensing distance (0m ~ 10m vs. 0m ~ 4m) provides operational margin and compatibility with applications requiring extended detection range without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can WSE4FP-84161100A00 directly replace WE4-3F3430 in existing installations?

A: Yes. Both parts share identical supply voltage (10V ~ 30V), response time (500µs), ingress protection (IP66/IP67), operating temperature range (-40°C ~ 60°C), and through-beam sensing method. The substitute part provides PNP dark-ON output mode compatible with original circuit design. Cable connector type compatibility must be verified for physical installation.

Q: What is the difference in sensing distance between these parts?

A: WE4-3F3430 provides 0m ~ 4m sensing range. WSE4FP-84161100A00 extends this to 0m ~ 10m. The substitute part covers the original operating distance and provides additional range capability. Applications using distances within the original 0m ~ 4m specification will function identically on both parts.

Q: Are the light source wavelengths interchangeable?

A: The original part uses red light at 650nm; the substitute uses red light at 635nm. Both wavelengths operate within the industrial red spectrum and provide equivalent optical performance for standard through-beam detection applications. Target reflectivity and ambient light conditions remain the same.

Q: Does the longer cable length (1.4m vs. 150mm) affect compatibility?

A: Cable length is a physical installation parameter. The longer cable on WSE4FP-84161100A00 provides greater installation flexibility. Electrical signal integrity remains equivalent. Installation space and routing requirements must be evaluated for specific applications.

Q: What output mode should be selected on WSE4FP-84161100A00?

A: Configure the substitute part for PNP dark-ON output mode to match the original WE4-3F3430 specification. The push-pull output capability allows selection of NPN or PNP mode depending on control circuit requirements.

Q: Is the W4F series compatible with W4-3 series installations?

A: Yes. Both series are SICK through-beam optical sensors with identical electrical specifications (supply voltage, response time, ingress protection, temperature range). Series designation reflects product line evolution; functional compatibility is maintained through parameter alignment.