EN12-HS11AF18 Rotary Encoder Mechanical 12PPR Equivalent & Substitute Parts

Part Overview

The EN12-HS11AF18 is a mechanical rotary encoder manufactured by TT Electronics/BI, delivering 12 pulses per revolution with quadrature (incremental) output. This vertical-mount, through-hole component features a 6mm diameter flatted end actuator, integrated detent mechanism, and built-in switch functionality. The encoder is actively produced and maintains RoHS compliance with REACH unaffected status.

Substitute parts become necessary when primary inventory is depleted, when supply chain constraints affect availability, or when design flexibility permits selection from qualified alternative manufacturers. The parts listed below maintain electrical and mechanical compatibility with the EN12-HS11AF18 across all critical operating parameters.

Substiute Parts

EN12-HS11AF18

TT Electronics/BIIn Stock: 933EN12-HS11AF18 Datasheet

Current PartRFQ

EN12-HS11AF25

TT Electronics/BIIn Stock: 6635EN12-HS11AF25 Datasheet

MFR RecommendedRFQ

PEC12R-4117F-S0012

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

MFR RecommendedRFQ

PEC12R-4120F-S0012

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

MFR RecommendedRFQ

PEC12R-4125F-S0012

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

MFR RecommendedRFQ

PEC12R-4130F-S0012

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

MFR RecommendedRFQ

PEC12R-4217F-S0012

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

MFR RecommendedRFQ

PEC12R-4220F-S0012

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility 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 below meet these criteria. The EN12-HS11AF25 is a direct TT Electronics/BI variant within the same EN12 series. The PEC12R series parts from Bourns Inc. represent cross-manufacturer equivalents with identical functional and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full regulatory compliance. The EN12-HS11AF25 provides the highest inventory availability within the TT Electronics/BI EN12 series while preserving identical electrical and mechanical characteristics. The Bourns Inc. PEC12R series variants offer cross-manufacturer equivalence with ROHS3 compliance certification, providing additional supply chain flexibility. Selection among PEC12R variants (4117F, 4120F, 4125F, 4130F, 4217F, 4220F) is determined by application-specific requirements not differentiated within the provided parameter set. All parts are packaged in trays and maintain 30K minimum rotational life specifications suitable for equivalent circuit integration.

Frequently Asked Questions (FAQ)

Q: Can EN12-HS11AF18 be directly replaced with EN12-HS11AF25?

A: Yes. Both parts are manufactured by TT Electronics/BI within the EN12 series and share identical specifications across all electrical and mechanical parameters, including 12 PPR quadrature output, 6mm flatted end actuator, detent mechanism, integrated switch, vertical PCB through-hole mounting, and 30K rotational life rating.

Q: Are Bourns Inc. PEC12R encoders electrically compatible with the EN12-HS11AF18?

A: Yes. The PEC12R series parts listed (4117F-S0012, 4120F-S0012, 4125F-S0012, 4130F-S0012, 4217F-S0012, 4220F-S0012) deliver identical quadrature output at 12 PPR with matching actuator geometry, detent behavior, switch integration, and rotational life specifications. Cross-manufacturer substitution is valid for applications where these parameters define compatibility.

Q: What is the difference between the various PEC12R part numbers?

A: The provided parameter set does not differentiate functional or electrical characteristics among PEC12R variants. Differences are encoded within the part number suffix but are not specified in the available data. Consult Bourns Inc. datasheets for variant-specific distinctions.

Q: Are all substitute parts RoHS compliant?

A: Yes. The EN12-HS11AF25 carries RoHS Compliant certification. All Bourns Inc. PEC12R variants carry ROHS3 Compliant certification. Both certifications satisfy RoHS directive requirements.

Q: What is the moisture sensitivity level for these encoders?

A: The EN12-HS11AF18 does not specify MSL in the provided data. The EN12-HS11AF25 and all PEC12R variants specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these encoders be used interchangeably in existing PCB designs?

A: Yes, provided the PCB layout accommodates the 6mm flatted end actuator and vertical through-hole mounting configuration. All listed parts share identical mechanical footprints and termination styles (PC Pin), enabling direct substitution without PCB redesign.

Q: What is the ECCN classification for export purposes?

A: All parts listed carry ECCN classification EAR99, indicating they are not subject to export licensing requirements under the Export Administration Regulations.