SY4S-51F1 is out of stock and can be placed on backorder.
Available Substitutes:

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TE Connectivity Potter & Brumfield Relays
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Clip, Hold Down RY Series Sockets
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Clip, Hold Down RY Series Sockets
Relay Basics - Another Teaching Moment | DigiKey Electronics
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SY4S-51F1

DigiKey Part Number
1885-1305-ND
Manufacturer
Manufacturer Product Number
SY4S-51F1
Description
RELAY HOLD DOWN SPRING
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
Clip, Hold Down RY Series Sockets
Datasheet
 Datasheet
Product Attributes
Filter Similar Products
Category
Part Status
Active
Manufacturer
IDEC
Accessory Type
Clip, Hold Down
Series
For Use With/Related Products
RY Series Sockets
Packaging
Bulk
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
20C217TE Connectivity Potter & Brumfield Relays0PB146-ND$0.58000Similar
5-1415037-1TE Connectivity Potter & Brumfield Relays0PB725-ND$1.21000Similar
PT28800TE Connectivity Potter & Brumfield Relays0PB1498-ND$0.99000Similar
PT28802TE Connectivity Potter & Brumfield Relays0PB728-ND$1.44000Similar
PYC-POmron Automation and Safety0Z796-ND$0.67000Direct
In-Stock: 0
1 estimated in stock on 06-Nov-2026
Request Stock Notification
All prices are in USD
Bulk
QuantityUnit PriceExt Price
1$0.46000$0.46
10$0.40700$4.07
25$0.38840$9.71
50$0.37520$18.76
100$0.36230$36.23
250$0.34600$86.50
500$0.33416$167.08
1,000$0.32272$322.72
5,000$0.29760$1,488.00
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.