Grayhill Inc. 513375-12-C Rotary Encoder Mechanical 12PPR Equivalent & Substitute Parts

Part Overview

The Grayhill Inc. 513375-12-C is an active mechanical rotary encoder with 12 pulses per revolution (PPR) output in BCD (Absolute) format. This vertical-orientation encoder features a 1/8" diameter flatted end actuator, detent mechanism, and PC pin termination for panel and PCB through-hole mounting applications. The part maintains active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on matching electrical output characteristics, mechanical form factors, and operational specifications within the Grayhill Series 51 encoder family.

Substiute Parts

513375-12-C

Grayhill Inc.In Stock: 1038513375-12-C Datasheet

Current PartRFQ

513360-10

Grayhill Inc.In Stock: 935513360-10 Datasheet

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513374-11

Grayhill Inc.In Stock: 1097513374-11 Datasheet

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513374-12-C

Grayhill Inc.In Stock: 912513374-12-C Datasheet

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513374-8

Grayhill Inc.In Stock: 944513374-8 Datasheet

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513384

Grayhill Inc.In Stock: 996513384 Datasheet

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513385

Grayhill Inc.In Stock: 859513385 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 513375-12-C are classified based on the following substitution criteria:

Primary Substitutes (Identical PPR Output): Parts 513374-12-C, 513384, and 513385 share the identical 12 PPR BCD absolute output specification. These parts maintain all mechanical and electrical compatibility parameters including the 1/8" flatted end actuator, detent mechanism, vertical orientation, PC pin termination, 25K rotational life minimum, and identical compliance certifications (ROHS3, REACH Unaffected, MSL 1).

Secondary Substitutes (Alternative PPR Output): Parts 513374-8 (8 PPR), 513374-11 (11 PPR), and 513360-10 (10 PPR) represent alternative pulse-per-revolution configurations within the same mechanical encoder family. These parts are substitutable only when application requirements permit different resolution levels. All secondary substitutes maintain identical mechanical form factors, mounting specifications, detent operation, vertical orientation, PC pin termination, rotational life rating, and compliance status.

Substitution Logic: All listed substitutes operate within the Grayhill Series 51 mechanical encoder platform with BCD absolute output. Substitution eligibility is determined by:

• Matching encoder type (Mechanical)
• Matching output type (BCD Absolute)
• Matching actuator geometry (1/8" Dia Flatted End)
• Matching detent presence (Yes)
• Matching mounting type (Panel, PCB Through Hole)
• Matching orientation (Vertical)
• Matching termination style (PC Pin)
• Matching rotational life specification (25K cycles minimum)
• Matching compliance certifications (ROHS3, REACH Unaffected, MSL 1)

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Identical Specifications): Parts 513374-12-C, 513384, and 513385 are direct substitutes for 513375-12-C. All three maintain identical 12 PPR output resolution, mechanical configuration, and compliance certifications. Selection among these three parts may be based on inventory availability and lead time requirements.

Conditional Substitution (Alternative Resolution): Parts 513374-8 (8 PPR), 513374-11 (11 PPR), and 513360-10 (10 PPR) are substitutable only when application circuit design accommodates alternative pulse-per-revolution values. These parts maintain all mechanical and compliance specifications but deliver different encoder resolution outputs. Use of these parts requires verification that the receiving circuit or system can process the alternative PPR specification.

Compliance and Regulatory Status: All substitute parts maintain active product status with ROHS3 compliance and REACH Unaffected designation. All parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements. All parts are rated for minimum 25K rotational life cycles.

Inventory Considerations: The 513374-11 variant offers the highest current inventory level at 1035 pieces. The main part 513375-12-C maintains 1024 pieces in stock. Secondary PPR variants (513374-8, 513360-10) provide alternative availability options with 904 and 852 pieces respectively.

Frequently Asked Questions (FAQ)

Q: Can 513374-12-C be used as a direct replacement for 513375-12-C?

A: Yes. Both parts share identical specifications across all critical parameters: 12 PPR BCD absolute output, mechanical encoder type, 1/8" flatted end actuator, detent mechanism, vertical orientation, PC pin termination, 25K rotational life minimum, and ROHS3/REACH compliance. Direct substitution is supported.

Q: What is the difference between the 12 PPR variants (513375-12-C, 513374-12-C, 513384, 513385)?

A: All four parts deliver identical 12 PPR BCD absolute output with matching mechanical and electrical specifications. Differences exist only in base product numbering within the Grayhill Series 51 family. Selection is based on availability and lead time.

Q: Can I use 513374-8 (8 PPR) instead of 513375-12-C (12 PPR)?

A: Substitution is possible only if your application circuit is designed to accept 8 PPR input. The 8 PPR variant provides lower resolution output. All other mechanical and compliance specifications remain identical. Verify circuit compatibility before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant designation and REACH Unaffected status, matching the compliance profile of the main part 513375-12-C.

Q: What is the MSL rating for these encoders?

A: All parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without special moisture control or baking requirements prior to assembly.

Q: Do these encoders include a built-in switch?

A: No. All listed parts, including the main part and all substitutes, do not include a built-in switch function. The detent mechanism provides tactile feedback only.

Q: What mounting options are available?

A: All parts support Panel and PCB Through Hole mounting configurations with vertical orientation and PC pin termination style.

Q: What is the minimum rotational life specification?

A: All parts are rated for a minimum of 25K rotational life cycles.