Part of the Omron CJ-Series PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CJ1W-OD261 — 64 Point NPN Output, 0.3 A / 6.4 A
SKU: CJ1W-OD261USD 57.00
CJ-series 64-point NPN (sinking) transistor output unit, 0.3 A per point / 1.6 A per common / 6.4 A per unit, DC 12-24 V rated
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Product Overview
The Omron CJ1W-OD261 is the 64-point NPN (sinking) transistor output unit for CJ-series PLCs. manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
It packs four commons of sixteen outputs each on a slim front face that occupies one slot on the CJ backplane, giving a high-density output block for solenoid banks, indicator stacks, and motor contactor coils in cabinets where panel real estate is the limiting factor. The unit runs on a separate DC 12-24 V load supply fed through the connector, with the logic supply taken from the CJ backplane.
The CJ1W-OD261 ships from Xiamen with full datasheet documentation. For a PNP output pick the OD262; for an OD261 with short-circuit and wire-break detection, step up to the OD263.
Key Features
- Output residual 1.5 V max at rated load
- 3.0 A per point inrush, 10 ms or less
- Internal 5 VDC 170 mA max from CJ backplane
- DC 12-24 V rated load (operating range 10.2 to 26.4 V)
- SKU: CJ1W-OD261
- Series: CJ1W (CJ-bus I/O unit)
- Voltage: 12-24 V
- I/O: 16 points
Best-Fit Applications
- 64-coil sequential control on a packaging line or sorting conveyor with a single OD261
- Replacement for two CJ1W-OD231 (32-point) units when one 64-point slot is more efficient on the rack
- 64-point output block for a high-density solenoid manifold on a multi-station assembly machine
Buying Checklist
- Pick CJ1W-OD231 (32-point NPN) when only 16-32 outputs are needed — saves slot cost and unused-points-to-trace time.
- Pick CJ1W-OD263 (64-point NPN with short-circuit and wire-break detection) for diagnostic panels that need per-point fault feedback.
- Pick CJ1W-OC201 (16-point relay output) when the load is mixed AC / DC or the inrush is over 3 A per point.
Technical Specifications
| Model | CJ1W-OD261 |
|---|---|
| Series | CJ1W (CJ-bus I/O unit) |
| Type | Transistor output unit, NPN (sinking) open collector |
| Output Points | 64 (4 commons x 16 points) |
| Rated Load Voltage | DC 12-24 V |
| Operating Load Voltage | DC 10.2 to 26.4 V |
| Max Load Current | 0.3 A per point / 1.6 A per common / 6.4 A per unit |
| Inrush Current | 3.0 A per point, 10 ms or less |
| Leakage Current | 0.1 mA or less (output OFF) |
| Residual Voltage | 1.5 V or less at rated load |
| ON Response Time | 0.5 ms or less |
| OFF Response Time | 1.0 ms max |
| Internal Current Draw | 5 VDC 170 mA max from CJ backplane |
| External Supply | DC 10.2 to 26.4 V, 50 mA minimum |
| Connection | Two Fujitsu-compatible 40-pin sockets (C500-CE241 family) |
| Indicators | 64 orange point LEDs + 4 red commons |
| Mass | ~110 g |
| Approvals | UL, CSA, cULus, CE, NK, Lloyds |
| Operating Temperature | 0 to +55 deg C |
| Operating Humidity | 10 to 90 % RH (non-condensing) |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for CJ1W-OD261
Is CJ1W-OD261 a 16-point, 32-point, or 64-point module?
64 point. The CJ1W-OD261 sits at the top of the CJ1W-OD2xx output family: OD201 / OD202 = 8 points, OD211 / OD212 = 16 points, OD231 / OD232 = 32 points, OD261 / OD262 = 64 points. The last digit of the first group signals the point count, and the 1 / 2 in the middle tells NPN / PNP. If you only need 16 or 32 outputs, the OD211 / OD231 are cheaper per point and leave the rack slot free for expansion.
What is the maximum current per point on the CJ1W-OD261?
0.3 A per point, with a per-common limit of 1.6 A across the 16 points on any one common, and a per-unit limit of 6.4 A across all 64 points ON simultaneously. The internal common fuse clears when any of these limits is exceeded — design the field wiring so the largest common load is under 1.6 A combined, including inrush where 3.0 A per point for 10 ms is acceptable but the average stays inside the continuous rating.
Does the CJ1W-OD261 need an external 24 VDC supply?
Yes. The unit draws 5 VDC logic power from the CJ backplane, but the load commons need a separate DC 10.2-26.4 V supply fed through the connector V+ / V- pins, with a minimum 50 mA idle to keep the output transistors biased correctly. Most cabinets feed this from the same S8FS or S8VK PSUs that power the field devices, not from the CPU power supply. Do not back-feed through a load — common-mode voltage drops cause false-ON faults on neighbouring commons.
What connector and cable fit CJ1W-OD261?
Two Fujitsu-compatible 40-pin sockets on the front of the unit, accepting the C500-CE241 connector or its XG4A / XG5 equivalents. Pre-assembled cable sets like the Omron XG5M-N1632 (3 m, 32 conductors per connector) ship with fork or M3.5 ring lugs on the field end, which saves the build time over hand-crimping individual terminals. For MIL 20-pin ribbon cable use the CJ1W-OD231 instead — the 32-point SKU uses the smaller MIL connector and a different cable family.
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