PEC12-4120F-S0012 Rotary Encoder Mechanical 12PPR Equivalent & Substitute Parts

Part Overview

The PEC12-4120F-S0012 is a mechanical rotary encoder manufactured by Bourns Inc., designed for quadrature (incremental) output applications with 12 pulses per revolution. This component features a 6mm diameter flatted end actuator, integrated detent mechanism, and built-in switch functionality for PCB through-hole mounting in vertical orientation.

The PEC12-4120F-S0012 is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Active alternatives from both Bourns Inc. (PEC12R series) and TT Electronics/BI (EN12 series) provide equivalent electrical and mechanical performance while offering improved availability and current product status.

Substiute Parts

PEC12-4120F-S0012

Bourns Inc.In Stock: 1134PEC12-4120F-S0012 Datasheet

Current PartRFQ

PEC12R-4120F-S0012

Bourns Inc.In Stock: 2545PEC12R-4120F-S0012 Datasheet

DirectRFQ

PEC12R-4117F-S0012

Bourns Inc.In Stock: 1959PEC12R-4117F-S0012 Datasheet

SimilarRFQ

PEC12R-4125F-S0012

Bourns Inc.In Stock: 1381PEC12R-4125F-S0012 Datasheet

SimilarRFQ

PEC12R-4130F-S0012

Bourns Inc.In Stock: 2911PEC12R-4130F-S0012 Datasheet

SimilarRFQ

PEC12R-4217F-S0012

Bourns Inc.In Stock: 1989PEC12R-4217F-S0012 Datasheet

SimilarRFQ

PEC12R-4220F-S0012

Bourns Inc.In Stock: 1856PEC12R-4220F-S0012 Datasheet

SimilarRFQ

EN12-HS11AF18

TT Electronics/BIIn Stock: 933EN12-HS11AF18 Datasheet

SimilarRFQ

EN12-HS11AF25

TT Electronics/BIIn Stock: 6635EN12-HS11AF25 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PEC12-4120F-S0012 is determined by strict equivalence across the following parameters:

• Encoder Type: Mechanical
• Output Type: Quadrature (Incremental)
• Pulses per Revolution: 12
• Actuator Type: 6mm Dia Flatted End
• Detent: Yes
• Built in Switch: Yes
• Mounting Type: PCB, Through Hole
• Orientation: Vertical
• Termination Style: PC Pin
• Rotational Life (Cycles Min): 30K

All substitute parts listed meet these criteria without exception. Bourns Inc. PEC12R series parts represent direct manufacturer evolution from the obsolete PEC12 series, maintaining identical electrical and mechanical specifications. TT Electronics/BI EN12 series parts provide cross-manufacturer equivalence with identical functional parameters and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PEC12-4120F-S0012 is obsolete and no longer in active production. Selection of substitute parts should prioritize active product status to ensure long-term supply chain stability.

Bourns Inc. PEC12R Series: The PEC12R-4120F-S0012 is the direct successor to the PEC12-4120F-S0012 within the same manufacturer's product line. This part maintains identical electrical and mechanical specifications while offering active product status and improved availability (2439 units in stock). All PEC12R variants listed (PEC12R-4117F-S0012, PEC12R-4125F-S0012, PEC12R-4130F-S0012, PEC12R-4217F-S0012, PEC12R-4220F-S0012) are functionally equivalent and carry ROHS3 compliance certification.

TT Electronics/BI EN12 Series: The EN12-HS11AF25 and EN12-HS11AF18 provide cross-manufacturer equivalence with identical functional parameters. Both parts carry RoHS compliance certification and are in active production. The EN12-HS11AF25 offers the highest inventory availability (6532 units) among all substitute options.

All substitute parts meet the original specification for mechanical encoder operation, quadrature output, 12 pulses per revolution, and 30K minimum rotational life cycles. Selection between Bourns and TT Electronics options depends on supply chain preferences and inventory requirements.

Frequently Asked Questions (FAQ)

Q: Can PEC12R series parts directly replace the obsolete PEC12-4120F-S0012?

A: Yes. The PEC12R-4120F-S0012 and all other PEC12R variants listed are direct functional equivalents. They maintain identical encoder type, output type, pulse resolution, actuator geometry, detent mechanism, integrated switch, mounting configuration, and rotational life specification. The primary difference is product status: PEC12R parts are active production items.

Q: What is the difference between Bourns PEC12R and TT Electronics EN12 substitutes?

A: Both series meet identical electrical and mechanical specifications for this application. The difference is manufacturer: Bourns Inc. manufactures the PEC12R series, while TT Electronics/BI manufactures the EN12 series. Both are active products with RoHS compliance. Selection depends on supply chain strategy and inventory availability.

Q: Are there packaging differences between the main part and substitutes?

A: The original PEC12-4120F-S0012 is packaged in standard format. Substitute parts from the PEC12R and EN12 series are packaged in Tray format. Both packaging types are suitable for PCB through-hole assembly and do not affect electrical or mechanical performance.

Q: Which substitute part has the best availability?

A: EN12-HS11AF25 offers the highest inventory level at 6532 units in stock. Among Bourns options, PEC12R-4130F-S0012 provides strong availability at 2835 units.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. The original PEC12-4120F-S0012 is ROHS3 compliant. All Bourns PEC12R substitutes maintain ROHS3 compliance. TT Electronics EN12 series parts are RoHS compliant. All options meet environmental regulatory requirements.

Q: Can I use EN12 parts in designs originally specified for Bourns PEC12 encoders?

A: Yes. The EN12-HS11AF18 and EN12-HS11AF25 are functionally equivalent across all specified parameters: mechanical encoder type, quadrature output, 12 PPR, 6mm flatted end actuator, detent, integrated switch, PCB through-hole vertical mounting, and 30K rotational life. Cross-manufacturer substitution is valid for this application.