PEC11-4020F-S0024 Rotary Encoder Mechanical 24PPR Equivalent & Substitute Parts

Part Overview

The PEC11-4020F-S0024 is a mechanical rotary encoder manufactured by Bourns Inc., configured for 24 pulses per revolution with quadrature (incremental) output. This part is classified as obsolete, necessitating identification of active equivalent and substitute models to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer Part Number	PEC11-4020F-S0024
Manufacturer	Bourns Inc.
Series	PEC11
Encoder Type	Mechanical
Output Type	Quadrature (Incremental)
Pulses per Revolution	24
Actuator Type	6mm Dia Flatted End
Detent	No
Built in Switch	Yes
Mounting Type	Panel, PCB Through Hole
Orientation	Vertical
Termination Style	PC Pin
Rotational Life (Cycles Min)	30K
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the PEC11-4020F-S0024 is determined by the following critical parameters:

Direct Equivalent Criteria:

Pulses per Revolution: 24
Actuator Type: 6mm Dia Flatted End
Mounting Type: Panel, PCB Through Hole
Orientation: Vertical
Termination Style: PC Pin
Output Type: Quadrature (Incremental)
Built in Switch: Yes
Detent: No

Similar Part Criteria (Compatible with Design Modifications):

Encoder Type: Mechanical
Output Type: Quadrature (Incremental)
Actuator Type: 6mm Dia Flatted End
Mounting Type: Panel, PCB Through Hole
Orientation: Vertical
Termination Style: PC Pin
Built in Switch: Yes
Detent: No

Parts with different pulses per revolution (PPR) or rotational life ratings are classified as similar alternatives and require firmware or software adjustment to accommodate resolution changes.

Parameter Comparison

Part Number	Series	PPR	Rotational Life (Cycles Min)	Product Status	Packaging	Inventory (Pcs)
PEC11-4020F-S0024	PEC11	24	30K	Obsolete	Not Specified	776
PEC11R-4020F-S0024	PEC11R	24	30K	Active	Tray	1050
PEC11R-4015F-S0024	PEC11R	24	30K	Active	Tray	1410
PEC11L-4020F-S0015	PEC11L	15	100K	Active	Tray	751
PEC11L-4015F-S0015	PEC11L	15	100K	Active	Tray	722
PEC11L-4015F-S0020	PEC11L	20	100K	Active	Tray	2390
PEC11L-4020F-S0020	PEC11L	20	100K	Active	Tray	2415
PEC11R-4015F-S0012	PEC11R	12	30K	Active	Tray	1801
PEC11R-4015F-S0018	PEC11R	18	30K	Active	Tray	1835
PEC11R-4020F-S0012	PEC11R	12	30K	Active	Tray	2770
PEC11R-4020F-S0018	PEC11R	18	30K	Active	Tray	626

Engineering Selection Recommendations

Primary Direct Equivalent: PEC11R-4020F-S0024 is the recommended direct replacement for PEC11-4020F-S0024. Both parts maintain identical electrical and mechanical specifications: 24 PPR, 30K rotational life cycles, 6mm flatted end actuator, vertical orientation, and PC pin termination. The PEC11R series represents the active production line equivalent of the obsolete PEC11 series. This part is ROHS3 compliant and carries active product status with 1050 units in stock.

Alternative Direct Equivalent: PEC11R-4015F-S0024 provides identical 24 PPR resolution and rotational life specifications as the original part. This alternative maintains full mechanical and electrical compatibility while offering higher inventory availability (1410 units).

Similar Parts with Resolution Differences: Parts with 12, 15, 18, or 20 PPR configurations are mechanically and electrically compatible but require firmware or software recalibration to accommodate different encoder resolution. Selection of these alternatives depends on application tolerance for resolution changes and whether the system can accommodate the modified pulse count per revolution.

Compliance and Availability: All recommended substitute parts are ROHS3 compliant and carry active product status. Tray packaging is standard across all active alternatives, ensuring consistent handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can PEC11R-4020F-S0024 be used as a direct replacement for PEC11-4020F-S0024? A: Yes. Both parts share identical specifications for pulses per revolution (24), rotational life (30K cycles), actuator type (6mm flatted end), mounting configuration (panel and PCB through hole), orientation (vertical), and termination style (PC pin). The primary difference is product status: PEC11-4020F-S0024 is obsolete while PEC11R-4020F-S0024 is active production.

Q: What is the difference between PEC11R and PEC11L series encoders? A: The PEC11R series maintains 30K minimum rotational life cycles, while the PEC11L series provides extended rotational life of 100K cycles. Both series share identical mechanical form factors, actuator types, and mounting configurations. Selection between series depends on application duty cycle requirements.

Q: Can I use a 15 PPR or 20 PPR encoder instead of the 24 PPR original? A: Mechanical and electrical compatibility is maintained across all PPR variants within the PEC11 family. However, using a different PPR configuration requires firmware or software modification to correctly interpret the altered pulse count per revolution. The application must be capable of recalibration to the new resolution.

Q: What packaging format is used for substitute parts? A: All active substitute parts are supplied in Tray packaging. This differs from the original PEC11-4020F-S0024, which does not specify packaging format. Tray packaging is standard for component handling and storage in production environments.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All recommended substitute parts carry ROHS3 compliance certification, matching the compliance status of the original PEC11-4020F-S0024.

Q: Which substitute part offers the highest inventory availability? A: PEC11R-4020F-S0012 provides the highest inventory level at 2770 units in stock. However, this part features 12 PPR resolution and requires firmware adjustment compared to the original 24 PPR specification. For direct 24 PPR equivalents, PEC11R-4015F-S0024 offers the highest availability at 1410 units.

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