FANUC A20B-2004-038 Printed Circuit Board | Replacement, Equivalent & Selection Guide
The FANUC A20B-2004-038 is an OEM printed circuit board (PCB) designed for FANUC CNC control systems. This page provides full technical specifications, verified compatible replacement models, system compatibility data, and a structured selection guide to help automation engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: A20B-2004-038
- Manufacturer: FANUC Corporation
- Product Type: Printed Circuit Board (PCB)
- Weight: Approx. 300 g
- Application: CNC control system main/sub board
- Condition Available: New OEM, Refurbished, Exchange
- Warranty: 12 months (new); 6 months (refurbished)
- RoHS Compliance: Confirm with batch documentation
- Lead Time: In-stock items ship within 1–3 business days
Compatible Replacement & Equivalent Models
The following models are known functional equivalents or drop-in replacements for the A20B-2004-038. Always verify firmware revision and connector pinout before substitution:
- A20B-2004-0380 — Revision suffix variant; electrically identical in most applications
- A20B-2004-0381 — Updated revision; check firmware compatibility with host controller
- A20B-2002-0290 — Functional equivalent for select Series 16/18/21 configurations
- A20B-2100-0390 — Cross-reference for specific spindle drive board applications
- Note: Cross-reference compatibility depends on CNC series, software version, and axis configuration. Contact Konmask for application-specific verification.
Why Choose the Original Model
- Guaranteed OEM Compatibility: Designed and tested by FANUC for seamless integration with FANUC CNC systems — no firmware patching required.
- Stable Signal Integrity: OEM PCB layout ensures consistent EMI performance in high-frequency servo environments.
- Traceability: Original boards carry FANUC serial numbers for warranty and service record tracking.
- Reduced Commissioning Risk: Eliminates compatibility unknowns that arise with third-party alternatives in safety-critical machine tool applications.
Typical Applications
- FANUC Series 0, 0i, 16, 18, 21, 30i, 31i, 32i CNC controllers
- Machining centers (VMC / HMC) with FANUC control
- CNC lathes and turning centers
- Wire EDM and die-sinking EDM machines
- Industrial robots with FANUC R-30iA / R-30iB controllers
- Injection molding machines with FANUC CNC integration
System Compatibility
| FANUC Series | Compatible | Notes |
|---|---|---|
| Series 0i-MD / 0i-TD | ✓ Verified | Standard fit |
| Series 16i / 18i / 21i | ✓ Verified | Check sub-board slot assignment |
| Series 30i / 31i / 32i | ⚠ Conditional | Verify PCB revision and software version |
| Series 15 / 15i | ✗ Not Compatible | Different bus architecture |
| Power Mate i-D / i-H | ⚠ Conditional | Confirm with FANUC documentation |
Selection Guide
Use the following decision flow to select the correct board for your application:
- Identify your CNC series — Check the controller nameplate or FANUC system parameter screen (MDI → SYSTEM → PARAM).
- Record the existing board part number — Located on the PCB silkscreen label (e.g., A20B-2004-038-01).
- Note the revision suffix — The two-digit suffix after the dash (e.g., -01, -02) may affect firmware compatibility.
- Determine condition requirement — New OEM for critical production lines; refurbished/exchange for budget-sensitive maintenance.
- Confirm lead time requirement — In-stock vs. factory order. Contact Konmask for real-time stock status.
- Request a cross-reference check — If substituting with an equivalent model, submit your machine model and software version to [email protected] for written confirmation.
Quality Assurance & Sourcing
- Source: Authorized distributors, OEM surplus, and certified refurbishment partners.
- Inspection: All boards undergo visual inspection, functional bench testing, and ESD-safe packaging before shipment.
- Documentation: Certificate of conformance and test report available upon request.
- Anti-Counterfeit: Konmask performs component-level verification to screen for counterfeit ICs and remarked chips.
- Packaging: Anti-static bag + foam-lined carton; humidity indicator card included for long-distance shipments.
How to Order
- Add to cart directly on this page, or
- Email [email protected] with your part number, quantity, required condition, and delivery address.
- For bulk or project orders (>5 units), request a formal quotation for volume pricing.
- Payment: T/T (bank transfer), PayPal, and major credit cards accepted.
- Shipping: DHL / FedEx / UPS express worldwide; sea freight available for large orders.
Replacement & Compatibility FAQ
Q: Can I use A20B-2004-0381 as a direct replacement for A20B-2004-038?
A: In most Series 0i and 16i/18i applications, yes. However, the revision suffix may require a firmware parameter adjustment. Contact us for a written compatibility confirmation before installation.
Q: Is a refurbished board reliable for production use?
A: Konmask-refurbished boards are bench-tested to OEM specifications and carry a 6-month warranty. For 24/7 production environments, we recommend new OEM stock.
Q: How do I identify the correct board if the label is damaged?
A: Provide your machine model, CNC series, and a photo of the board. Our technical team will identify the correct part number within 24 hours.
Q: Do you offer exchange / core return programs?
A: Yes. Send your faulty board as a core return and receive a credit toward a refurbished replacement. Contact us for exchange terms.
Q: What is the lead time for out-of-stock items?
A: Factory orders typically require 4–8 weeks. Refurbished alternatives are usually available within 3–5 business days.
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Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
