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1657 Tech Specifications
Keystone Electronics Corp 1657 technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs SI1084-A-GM.
| Product Attribute | Attribute Value | |
|---|---|---|
| Category | Board Spacers, Standoffs | |
| Manufacturer | Keystone Electronics Corp | |
| Factory Lead Time | 6 Weeks | |
| Material | Brass | |
| Shape | Round | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Type | Round Standoff | |
| Color | Natural | |
| Gender | Female, Female |
| Product Attribute | Attribute Value | |
|---|---|---|
| Plating | Zinc | |
| Screw Thread | #4-40 | |
| Threaded/Unthreaded | Threaded | |
| Diameter | 4.75mm | |
| Length | 12.7mm | |
| Length - Overall | 0.500 12.70mm 1/2 | |
| Diameter - Outside | 0.188 (4.78mm) 3/16 | |
| Between Board Height | 0.500 12.70mm 1/2 | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
1657 Documents
Download datasheets and manufacturer documentation for 1657
Environmental Information
RoHS CertificateDatasheets
Threaded Standoffs 1657(A,B) Drawing
Others include "1657" parts
The following parts include '1657'
| Part # | Manufacturer | Package | Availability |
|---|---|---|---|
| 1657 | Keystone Electronics | - | |
| 1657A | Keystone Electronics | - | |
| 1657B | Keystone Electronics | - |
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Alternate Products
| Part # | Manufacturer | Description | Package | RoHS | |
|---|---|---|---|---|---|
![]() | 1657 | Keystone Electronics | ROUND STANDOFF #4-40 BRASS 1/2" | - | |
![]() | 1864 | Keystone Electronics | ROUND STANDOFF #4-40 BRASS 3/8" | - | |
![]() | 1656 | Keystone Electronics | STANDOFF HEX 4-40THR .500"H BRS | - | |
![]() | 1803 | Keystone Electronics | STANDOFF HEX 4-40THR .375"L BRS | - |
Payment Problem
The payment method can be chosen from the four methods shown below: TT in advance (bank transfer), Western Union, Credit card, PayPal.

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Shopping Guide
Shipping | Delivery Period | Packages will be arranged for delivery within 1-2 days from the date of all items arrive at our warehouse. In stock items can be shipped out within 24 hours. Delivery Time depends on Shipping Method and Delivery Destinations. |
Shipping Rate | Shipping rate is based on size, weight, destination of the package. MOST offers competitive shipping options through top carriers DHL, FedEx and UPS. We also offer shipping account services for customers who wish to be billed directly for shipping. | |
Shipping Methods | ![]() | |
Shipping Tracking | Once the components are delivered, the tracking number will be notified via email immediately. The tracking number also could be found in order history. | |
Returning | Returning | All returns should be made within 60 days of date of invoice and be accompanied by the original invoice number, certificate of guarantee card, parts picture and a brief explanation or test report of the reason for the return. Returns will not be accepted after 60 days. Returned merchandise must be in original packaging and in resalable condition. Parts returned due to customer error at time of quote or sale will not be accepted. Please contact customer service for a return authorization before return shipment. |
Ordering | How to Buy | Online and offline orders both are available. Please find the order process guidance from below link: If you have any operation issue, please feel free to contact with our customer service. |
Payment | TT in advance (bank transfer), Western Union, Credit card, PayPal. Customer is responsible for shipping fee, bank charges, duties and taxes. |
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1657 Comments
109 reviews
2021-02-27 00:00:00
Their range of products covers both common and hard-to-find components, a great resource for electronic enthusiasts.
2021-02-26 00:00:00
I have used this to measure various antennas, and it is useful.
2021-02-25 00:00:00
This is great for imaging my retro-pc floppies. It worked out of the box with minimal setup. Hooked up my floppy drive, fired up my imaging software and it all just worked.
2021-02-25 00:00:00
Customer service was responsive.
2021-01-23 00:00:00
I especially appreciate their detailed product descriptions and technical specifications, which allow me to make informed purchasing decisions.
2021-01-14 00:00:00
The shipping time was average, not exceptionally fast but within a reasonable timeframe.
2021-01-07 00:00:00
Competitive pricing without compromising on product quality.
2020-12-25 00:00:00
Simplify the process of finding specific components, Jakelectronics has a very easy-to-use interface to search for semiconductors, electronic components.
2020-11-28 00:00:00
Great project!
2020-11-26 00:00:00
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