The GRAYHILL 25BP45-Q-2-08C is a high-quality mechanical rotary encoder designed for precise position feedback in various industrial and automation applications. Manufactured in the USA and compliant with RoHS standards, this encoder offers reliable performance with a compact form factor.
Product Features
Mechanical rotary encoder with 8 pulses per revolution (PPR)
Multiple deck configurations available for versatile applications
Less than 1.0" square package size for space-constrained installations
Terminations include PC terminals with .100" on center; decks are .200" apart
Panel and shaft seal options available for enhanced durability
Manufactured to ISO 9001 and military standards for quality assurance
Custom configurations available to meet specific requirements
Technical Specifications
Parameter
Details
Electrical Ratings
Switching loads: 150 mA at 120 Vac resistive
150 mA at 28 Vdc resistive
Current carrying capacity: 250 mA at 28 Vdc resistive
Contact resistance: 75 mΩ max. after life
Insulation resistance: ≥1000 MΩ between terminals and shaft
Voltage breakdown: ≥1000 Vac between terminals and shaft
Life expectancy: 50,000 cycles at rated loads
Contacts: Shorting
Mechanical Ratings
Stop strength: ≥10 in-lbs
Rotational torque: 4-20 in-oz (dependent on number of decks)
Operating temperature range: -65°C to +85°C
Non-turn device: Flatted mounting bushing, .375" dia. x .320"
Package size: .865" square
Termination: PC terminals, .100" on center
Materials and Finishes
Bushing: Die cast zinc alloy, tin-zinc plated
Mounting hardware: Plated brass
Decks, deck separators, end plate: Thermoplastic
Contacts and terminals: Gold, silver, nickel-plated beryllium copper
Shaft and stop blades: Stainless steel
Rivets: Brass, zinc-plated
Additional Details
Part Number: 25BP45-Q-2-08C
Manufacturer: GRAYHILL
Country of Origin: US
Unit of Measure: EA
ECCN: EAR99
Package Type: BLK
For detailed technical information, please refer to the datasheet.
Note: If additional specifications or custom configurations are required, please consult the datasheet or contact Grayhill directly.
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{"id":10021078761789,"title":"25BP45-Q-2-08C","handle":"25bp45-q-2-08c","description":"\u003ch3\u003eGRAYHILL 25BP45-Q-2-08C Rotary Encoder Mechanical 8PPR\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e 25BP45-Q-2-08C is a high-quality mechanical rotary encoder designed for precise position feedback in various industrial and automation applications. Manufactured in the USA and compliant with RoHS standards, this encoder offers reliable performance with a compact form factor.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMechanical rotary encoder with 8 pulses per revolution (PPR)\u003c\/li\u003e\n \u003cli\u003eMultiple deck configurations available for versatile applications\u003c\/li\u003e\n \u003cli\u003eLess than 1.0\" square package size for space-constrained installations\u003c\/li\u003e\n \u003cli\u003eTerminations include PC terminals with .100\" on center; decks are .200\" apart\u003c\/li\u003e\n \u003cli\u003ePanel and shaft seal options available for enhanced durability\u003c\/li\u003e\n \u003cli\u003eManufactured to ISO 9001 and military standards for quality assurance\u003c\/li\u003e\n \u003cli\u003eCustom configurations available to meet specific requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eElectrical Ratings\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eSwitching loads: 150 mA at 120 Vac resistive\u003c\/li\u003e\n \u003cli\u003e150 mA at 28 Vdc resistive\u003c\/li\u003e\n \u003cli\u003eCurrent carrying capacity: 250 mA at 28 Vdc resistive\u003c\/li\u003e\n \u003cli\u003eContact resistance: 75 mΩ max. after life\u003c\/li\u003e\n \u003cli\u003eInsulation resistance: ≥1000 MΩ between terminals and shaft\u003c\/li\u003e\n \u003cli\u003eVoltage breakdown: ≥1000 Vac between terminals and shaft\u003c\/li\u003e\n \u003cli\u003eLife expectancy: 50,000 cycles at rated loads\u003c\/li\u003e\n \u003cli\u003eContacts: Shorting\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Ratings\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eStop strength: ≥10 in-lbs\u003c\/li\u003e\n \u003cli\u003eRotational torque: 4-20 in-oz (dependent on number of decks)\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -65°C to +85°C\u003c\/li\u003e\n \u003cli\u003eNon-turn device: Flatted mounting bushing, .375\" dia. x .320\"\u003c\/li\u003e\n \u003cli\u003ePackage size: .865\" square\u003c\/li\u003e\n \u003cli\u003eTermination: PC terminals, .100\" on center\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMaterials and Finishes\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eBushing: Die cast zinc alloy, tin-zinc plated\u003c\/li\u003e\n \u003cli\u003eMounting hardware: Plated brass\u003c\/li\u003e\n \u003cli\u003eDecks, deck separators, end plate: Thermoplastic\u003c\/li\u003e\n \u003cli\u003eContacts and terminals: Gold, silver, nickel-plated beryllium copper\u003c\/li\u003e\n \u003cli\u003eShaft and stop blades: Stainless steel\u003c\/li\u003e\n \u003cli\u003eRivets: Brass, zinc-plated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 25BP45-Q-2-08C\u003c\/li\u003e\n \u003cli\u003eManufacturer: GRAYHILL\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: US\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: BLK\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed technical information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-gh\/34mech_encoder_25.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: If additional specifications or custom configurations are required, please consult the datasheet or contact Grayhill directly.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-12T11:03:23+05:30","created_at":"2025-08-12T11:03:23+05:30","vendor":"Waldom Electonics","type":"Encoders","tags":["Encoders","GRAYH","IMPORT_CSV","WLDM"],"price":1168877,"price_min":1168877,"price_max":1168877,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50611580010813,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"25BP45-Q-2-08C","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"25BP45-Q-2-08C","public_title":null,"options":["Default Title"],"price":1168877,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"25BP45-Q-2-08C","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/25BP45-Q-2-08C_Series_2025_ca33aa77.jpg?v=1754976806"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/25BP45-Q-2-08C_Series_2025_ca33aa77.jpg?v=1754976806","options":["Title"],"media":[{"alt":null,"id":45797582209341,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/25BP45-Q-2-08C_Series_2025_ca33aa77.jpg?v=1754976806"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/25BP45-Q-2-08C_Series_2025_ca33aa77.jpg?v=1754976806","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGRAYHILL 25BP45-Q-2-08C Rotary Encoder Mechanical 8PPR\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e 25BP45-Q-2-08C is a high-quality mechanical rotary encoder designed for precise position feedback in various industrial and automation applications. Manufactured in the USA and compliant with RoHS standards, this encoder offers reliable performance with a compact form factor.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMechanical rotary encoder with 8 pulses per revolution (PPR)\u003c\/li\u003e\n \u003cli\u003eMultiple deck configurations available for versatile applications\u003c\/li\u003e\n \u003cli\u003eLess than 1.0\" square package size for space-constrained installations\u003c\/li\u003e\n \u003cli\u003eTerminations include PC terminals with .100\" on center; decks are .200\" apart\u003c\/li\u003e\n \u003cli\u003ePanel and shaft seal options available for enhanced durability\u003c\/li\u003e\n \u003cli\u003eManufactured to ISO 9001 and military standards for quality assurance\u003c\/li\u003e\n \u003cli\u003eCustom configurations available to meet specific requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eElectrical Ratings\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eSwitching loads: 150 mA at 120 Vac resistive\u003c\/li\u003e\n \u003cli\u003e150 mA at 28 Vdc resistive\u003c\/li\u003e\n \u003cli\u003eCurrent carrying capacity: 250 mA at 28 Vdc resistive\u003c\/li\u003e\n \u003cli\u003eContact resistance: 75 mΩ max. after life\u003c\/li\u003e\n \u003cli\u003eInsulation resistance: ≥1000 MΩ between terminals and shaft\u003c\/li\u003e\n \u003cli\u003eVoltage breakdown: ≥1000 Vac between terminals and shaft\u003c\/li\u003e\n \u003cli\u003eLife expectancy: 50,000 cycles at rated loads\u003c\/li\u003e\n \u003cli\u003eContacts: Shorting\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Ratings\u003c\/td\u003e\n \u003ctd\u003e\n \u003cul\u003e\n \u003cli\u003eStop strength: ≥10 in-lbs\u003c\/li\u003e\n \u003cli\u003eRotational torque: 4-20 in-oz (dependent on number of decks)\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -65°C to +85°C\u003c\/li\u003e\n \u003cli\u003eNon-turn device: Flatted mounting bushing, .375\" dia. x .320\"\u003c\/li\u003e\n \u003cli\u003ePackage size: .865\" square\u003c\/li\u003e\n \u003cli\u003eTermination: PC terminals, .100\" on center\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMaterials and Finishes\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eBushing: Die cast zinc alloy, tin-zinc plated\u003c\/li\u003e\n \u003cli\u003eMounting hardware: Plated brass\u003c\/li\u003e\n \u003cli\u003eDecks, deck separators, end plate: Thermoplastic\u003c\/li\u003e\n \u003cli\u003eContacts and terminals: Gold, silver, nickel-plated beryllium copper\u003c\/li\u003e\n \u003cli\u003eShaft and stop blades: Stainless steel\u003c\/li\u003e\n \u003cli\u003eRivets: Brass, zinc-plated\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 25BP45-Q-2-08C\u003c\/li\u003e\n \u003cli\u003eManufacturer: GRAYHILL\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: US\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: BLK\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed technical information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-gh\/34mech_encoder_25.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: If additional specifications or custom configurations are required, please consult the datasheet or contact Grayhill directly.\u003c\/em\u003e\u003c\/p\u003e"}
I'm particularly impressed with how carefully the header pins are packed for the RP2350-PiZero, they arrived in perfect condition without any bent pins, which has been a persistent issue with other competitors. This attention to packaging detail really stands out.
I also received the latest A4 revision of the RP2350, which shows you maintain current inventory, that's really valuable for customers who want the most up to date components.
The delivery was quick and hassle free throughout. I'll definitely be recommending you to others!
App feedback: The discounts offered through the app are a nice bonus, but the component search function could be improved to match the ease of use on the website version. The rest of the app functions work well.
