Series Overview
Series Overview
E3T is an ultra-small photoelectric sensor, suitable for precision machinery with limited space; E3JK is a more general rectangular photoelectric series, commonly used in transportation, packaging and general inspection. Both have stable replacement demand in overseas installed equipment.
Part-number Structure & Selection Notes
E3T needs to focus on confirming the detection method, installation form and output; E3JK needs to confirm diffuse reflection/retro-reflection/through-beam, output method and power supply. The letters and suffixes in the complete part number cannot be omitted; unlisted models can be checked according to the official Ordering Information.
Models in This Series
The table lists commonly requested models and key specifications. If your required model is not shown, send the complete ordering code for verification.
| Complete Part Number | Series | typical sensing mode |
|---|---|---|
| E3T-ST31 2M | E3T / Through-beam | 2m red light / NPN / Light-ON |
| E3T-ST33 2M | E3T / Through-beam | 2m red light / PNP / Light-ON |
| E3T-FT11 2M | E3T / Flat through-beam | 500mm red light / NPN / Light-ON |
| E3T-FT13 2M | E3T / Flat through-beam | 500mm red light / PNP / Light-ON |
| E3T-FD11 2M | E3T / Diffuse-reflective | 5–30mm / NPN / Light-ON |
| E3T-FD13 2M | E3T / Diffuse-reflective | 5–30mm / PNP / Light-ON |
| E3JK-TR11-C 2M | E3JK / Through-beam | 40m red light / relay / AC-DC supply |
| E3JK-TR12-C 2M | E3JK / Through-beam | 5m red light / relay / AC-DC supply |
| E3JK-RR11-C 2M | E3JK / Retro-reflective | 7m with E39-R1 / red light / relay |
| E3JK-RR12-C 2M | E3JK / Retro-reflective | 6m with E39-R1 / MSR / red light / relay |
| E3JK-DR11-C 2M | E3JK / Diffuse-reflective | 2.5m / red light / relay |
| E3JK-DR12-C 2M | E3JK / Diffuse-reflective | 300mm / red light / relay |
Specifications must be confirmed against the applicable official datasheet and ordering information. Regional variants, suffixes and configurations are not automatically interchangeable.
FAQ
Frequently Asked Questions
How do I confirm the complete part number for E3T / E3JK photoelectric sensor?
E3T needs to focus on confirming the detection method, installation form and output; E3JK needs to confirm diffuse reflection/retro-reflection/through-beam, output method and power supply. The letters and suffixes in the complete part number cannot be omitted; unlisted models can be checked according to the official Ordering Information.
What are the main differences between E3T-ST11 and E3T-FT11?
typical sensing mode: E3T-ST11 is Through-beam / compact, E3T-FT11 is Flat through-beam. Verify the complete ordering code and project conditions before selection or replacement; the series name alone is not sufficient.
Which specifications matter most when selecting E3T / E3JK photoelectric sensor?
Key specifications to verify are series, typical sensing mode. Match them against the equipment nameplate, drawing or original model, and retain every suffix, option and regional code in the complete ordering reference.
Why is the complete part number required when requesting a quote for E3T / E3JK photoelectric sensor?
Models within E3T / E3JK photoelectric sensor may differ in electrical ratings, construction, interfaces or accessories. For example, E3T-ST11, E3T-FT11, E3T-FD11 are distinct configurations and cannot be interchanged on the series name alone. Using the complete part number substantially reduces mismatch risk.
Cannot find the complete part number?
Send the legacy part number, nameplate photo or application details and we will help identify the correct item.
