In most procurement cycles, E3X-SD21-2M is considered with Omron SMPS 24V 10A, E32 Cc200 2M and Omron Fiber Optic Sensor, giving decision-makers confidence that theyβve chosen the most dependable component.
Omron E3X-SD21 2M Fiber Optic Sensor
The Omron E3X-SD21 2M Fiber Optic Sensor is a compact CPU Unit-compatible fiber amplifier engineered for stable NPN output performance in standard detection tasks. It uses a red 4-element LED (625 nm) and a durable 2 m pre-wired cable for consistent light transmission and simple installation. With a 200 ΞΌs response time, IP50 protection, and a 12 to 24 VDC supply range, it ensures fast, reliable operation in space-restricted panels. Its PBT/PC housing enhances durability in repetitive machine operations. Manufactured by Omron, part of the Omron Fiber Optic Sensor family within the Omron E3X Series.
| Brand | Omron |
| Product Type | Fiber Optic Sensors |
| Model Number | E3X-SD21 2M |
Omron E3X-SD21 2M Fiber Optic Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Connection method | Pre-wired Cable |
| Light source | Red, 4-element LED (625 nm) |
| Cable length | 2 m |
| Output type | NPN |
| Response time | Operate or reset: 200 ΞΌs max. |
| Power supply voltage | 12 to 24 VDC Β±10%, ripple (p-p): 10% max |
| Ambient illumination (Receiver side) | Receiver side Incandescent lamp: 10,000 lux max. Sunlight: 20,000 lux max. |
| Ambient temperature range | Operating: Groups of 1 to 3 Amplifiers: β25Β°C to 55Β°C Groups of 4 to 11 Amplifiers: β25Β°C to 50Β°C Groups of 12 to 16 Amplifiers: β25Β°C to 45Β°C Storage: β30Β°C to 70Β°C (with no icing or condensation) |
| Ambient humidity range | Operating and storage: 35% to 85% (with no condensation) |
| Insulation resistance | 20 MΞ©. min. (at 500 VDC) |
| Dielectric strength | 1,000 VAC at 50/60 Hz for 1 minute |
| Vibration resistance (destruction) | 10 to 55 Hz with a 1.5-mm double amplitude for 2 hours each in X, Y and Z directions |
| Shock resistance (destruction) | 500 m/s2, for 3 times each in X, Y and Z directions |
| Degree of protection (IP) | IEC 60529 IP50 |
| Materials | Case: Polybutylene terephthalate (PBT) Cover: Polycarbonate (PC) |
The Omron E3X-SD21 2M is a compact fiber amplifier unit built for straightforward sensing needs. It uses a red 625 nm 4-element LED light source and features a pre-wired 2-meter cable for quick, easy integration in standard setups.
This amplifier provides an NPN open collector output and supports ultra-fast detection with a response time as low as 200 ΞΌs. Designed to operate reliably across multiple amplifier groupings, it offers consistent performance in automated machinery, basic detection, and entry-level sensing applications.
Housed in a robust PBT and PC casing, the E3X-SD21 is rated IP50 and built to withstand vibration, shock, and industrial lighting conditions up to 20,000 lux. Its simple setup, stable performance, and compact footprint make it suitable for everyday industrial automation tasks requiring cost-effective and dependable fiber sensing.
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