PEC12-2120F-S0012 Equivalent & Substitute Parts

Part Overview

The PEC12-2120F-S0012 is a mechanical rotary encoder manufactured by Bourns Inc., featuring 12 pulses per revolution with quadrature (incremental) output. This component is designed for PCB through-hole mounting in right-angle orientation with a 6mm diameter flatted-end actuator and integrated detent and switch functionality. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
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	Right Angle
Termination Style	PC Pin
Rotational Life (Cycles Min)	30K

Substitute Part Grouping Explanation

Substitution of the PEC12-2120F-S0012 is determined by strict equivalence across the following critical 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: Right Angle
Termination Style: PC Pin
Rotational Life: 30K cycles minimum

All substitute parts listed below match these parameters exactly. The primary distinction between the main part and substitutes is product status: the original PEC12-2120F-S0012 is obsolete, while all listed substitutes are active products with current availability.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Encoder Type	Output Type	PPR	Actuator	Detent	Switch	Mount Type	Orientation	Termination	Life (Cycles)	RoHS Status	Inventory (Pcs)
PEC12-2120F-S0012	Bourns Inc.	PEC12	Obsolete	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	ROHS3 Compliant	1002
PEC12R-2120F-S0012	Bourns Inc.	PEC12R	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	ROHS3 Compliant	2067
PEC12R-2117F-S0012	Bourns Inc.	PEC12R	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	ROHS3 Compliant	2086
PEC12R-2125F-S0012	Bourns Inc.	PEC12R	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	ROHS3 Compliant	1098
PEC12R-2130F-S0012	Bourns Inc.	PEC12R	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	ROHS3 Compliant	986
EN12-VS11AF18	TT Electronics/BI	EN12	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	RoHS Compliant	2799
EN12-VS11AF20	TT Electronics/BI	EN12	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	RoHS Compliant	763
EN12-VS11AF25	TT Electronics/BI	EN12	Active	Mechanical	Quadrature (Incremental)	12	6mm Dia Flatted End	Yes	Yes	PCB, Through Hole	Right Angle	PC Pin	30K	RoHS Compliant	1016

Engineering Selection Recommendations

All listed substitute parts meet the functional and electrical requirements of the PEC12-2120F-S0012. Selection should be based on the following criteria:

Bourns Inc. PEC12R Series (Direct Manufacturer Substitutes): PEC12R-2120F-S0012, PEC12R-2117F-S0012, PEC12R-2125F-S0012, and PEC12R-2130F-S0012 are active products from the same manufacturer as the original part. These parts maintain ROHS3 compliance and are recommended as primary substitutes due to manufacturing continuity and design compatibility.

TT Electronics/BI EN12 Series (Cross-Manufacturer Substitutes): EN12-VS11AF18, EN12-VS11AF20, and EN12-VS11AF25 are functionally equivalent alternatives from TT Electronics/BI. These parts maintain RoHS compliance and provide cross-manufacturer compatibility for applications requiring supply chain diversification.

Compliance Considerations: All substitute parts are RoHS compliant. The original PEC12-2120F-S0012 carries ROHS3 certification, while Bourns PEC12R variants maintain ROHS3 compliance. TT Electronics/BI EN12 variants carry RoHS compliance. Both compliance levels are acceptable for equivalent substitution.

Frequently Asked Questions (FAQ)

Q: Can PEC12R-2120F-S0012 directly replace PEC12-2120F-S0012? A: Yes. PEC12R-2120F-S0012 is a direct functional equivalent with identical electrical and mechanical parameters. The primary difference is product status: the original is obsolete while PEC12R-2120F-S0012 is an active product.

Q: What is the difference between Bourns PEC12R and TT Electronics EN12 series encoders? A: Both series share identical functional specifications for the listed part numbers: 12 PPR mechanical quadrature output, 6mm flatted-end actuator, detent, integrated switch, and 30K cycle rotational life. The difference is manufacturer origin. Bourns parts are recommended for direct replacement; TT Electronics parts provide cross-manufacturer alternatives.

Q: Are there packaging differences between substitute parts? A: All substitute parts are supplied in Tray packaging. The original PEC12-2120F-S0012 packaging specification was not provided in the technical data.

Q: Can I use EN12-VS11AF18, EN12-VS11AF20, or EN12-VS11AF25 interchangeably? A: Yes, within the scope of the provided parameters. All three EN12 variants share identical electrical and mechanical specifications. Selection between them should be based on supply availability and lead time requirements.

Q: What compliance certifications apply to these substitute parts? A: All parts are RoHS compliant. Bourns PEC12R variants carry ROHS3 certification. TT Electronics EN12 variants carry RoHS certification. Both certifications satisfy equivalent substitution requirements.

Q: Is there a preferred substitute if the original PEC12-2120F-S0012 is unavailable? A: PEC12R-2120F-S0012 is the recommended first choice as it maintains the same manufacturer (Bourns Inc.) and ROHS3 compliance level. If Bourns parts are unavailable, EN12-VS11AF18 offers the highest inventory availability (2799 pcs) among cross-manufacturer alternatives.

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