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EM14R1D-M25-L032S Equivalent & Substitute Parts
Part Overview
The EM14R1D-M25-L032S is an optical rotary encoder manufactured by Bourns Inc., classified as an active product. This vertical-mount encoder delivers 32 pulses per revolution in quadrature (incremental) output format, operating at 5V supply voltage. The encoder features a 6mm diameter flatted-end actuator with integrated detent and built-in switch functionality, designed for panel and PCB through-hole mounting applications. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time considerations, or specific packaging requirements for your application.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | EM14R1D-M25-L032S |
| Manufacturer | Bourns Inc. |
| Series | EM14 |
| Encoder Type | Optical |
| Output Type | Quadrature (Incremental) |
| Pulses per Revolution | 32 |
| Voltage - Supply | 5V |
| Actuator Type | 6mm Dia Flatted End |
| Detent | Yes |
| Built in Switch | Yes |
| Mounting Type | Panel, PCB Through Hole |
| Orientation | Vertical |
| Termination Style | PC Pin |
| Rotational Life (Cycles Min) | 200K |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Affected |
Substitute Part Grouping Explanation
The EM14R1D-M25-L032S has one identified substitute within the Bourns EM14 series: the EM14R1B-M20-L032S. Substitution eligibility is determined by strict equivalence across the following critical parameters:
- Encoder Type: Optical
- Output Type: Quadrature (Incremental)
- Pulses per Revolution: 32
- Voltage - Supply: 5V
- Actuator Type: 6mm Dia Flatted End
- Detent: Yes
- Built in Switch: Yes
- Mounting Type: Panel, PCB Through Hole
- Orientation: Vertical
- Termination Style: PC Pin
- Rotational Life (Cycles Min): 200K
- RoHS Status: ROHS3 Compliant
- REACH Status: REACH Affected
The substitute part maintains identical electrical and mechanical specifications, with the primary difference being the packaging format and base product designation within the EM14 series.
Parameter Comparison
| Parameter | EM14R1D-M25-L032S | EM14R1B-M20-L032S |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Series | EM14 | EM14 |
| Encoder Type | Optical | Optical |
| Output Type | Quadrature (Incremental) | Quadrature (Incremental) |
| Pulses per Revolution | 32 | 32 |
| Voltage - Supply | 5V | 5V |
| Actuator Type | 6mm Dia Flatted End | 6mm Dia Flatted End |
| Detent | Yes | Yes |
| Built in Switch | Yes | Yes |
| Mounting Type | Panel, PCB Through Hole | Panel, PCB Through Hole |
| Orientation | Vertical | Vertical |
| Termination Style | PC Pin | PC Pin |
| Rotational Life (Cycles Min) | 200K | 200K |
| Product Status | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Affected | REACH Affected |
Engineering Selection Recommendations
Both the EM14R1D-M25-L032S and EM14R1B-M20-L032S are active products from Bourns Inc. with identical compliance certifications. The EM14R1D-M25-L032S is available in standard packaging, while the EM14R1B-M20-L032S is supplied in bulk packaging. Selection between these parts should be based on packaging requirements and inventory availability for your procurement cycle. Both parts meet ROHS3 compliance and REACH regulatory requirements, making them suitable for equivalent application in designs requiring optical quadrature encoders with 32 pulses per revolution at 5V operation.
Frequently Asked Questions (FAQ)
Q: Can the EM14R1B-M20-L032S be used as a direct replacement for the EM14R1D-M25-L032S?
A: Yes. Both parts are functionally equivalent across all critical electrical and mechanical parameters, including encoder type, output format, resolution, supply voltage, actuator geometry, detent function, integrated switch, mounting configuration, and rotational life rating.
Q: What is the difference between these two part numbers?
A: The primary difference is the packaging format. The EM14R1D-M25-L032S uses standard packaging, while the EM14R1B-M20-L032S is supplied in bulk packaging. The base product designations (EM14R1D versus EM14R1B) reflect this packaging distinction within the EM14 series.
Q: Are there any compliance or certification differences between these parts?
A: No. Both parts carry identical RoHS3 compliance and REACH regulatory status, ensuring equivalent suitability for regulated applications.
Q: What parameters must remain constant when selecting a substitute optical rotary encoder?
A: Critical parameters for substitution include encoder type (optical), output type (quadrature incremental), pulses per revolution (32), supply voltage (5V), actuator type (6mm flatted end), detent presence, integrated switch functionality, mounting type (panel and PCB through-hole), orientation (vertical), and termination style (PC pin).
Q: Can I use these encoders interchangeably in my PCB design?
A: Yes, provided your design accommodates the packaging format of the selected part. Both parts feature identical PC pin termination and mounting specifications for panel and PCB through-hole applications.
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