Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

B&K PRECISION Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D - Switching Digital DC Power Supplies
B&K PRECISIONSwitching Digital DC Power Supplies

B&K PRECISION Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D

The B&K PRECISION 1685B is a Switching Digital DC Power Supply. Key specifications include a Line Regulation Current of 50 mA, a Line Regulation Voltage of More Than or Equal to 20mV, a Load Regulation Current of 100…

SKU 3G-OTH-173689

Also listed as: 1685 B · 1685-B

Brand
B&K PRECISION
Item
Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D
Category
Switching Digital DC Power Supplies
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

B&K PRECISION
Manufacturer Part Number
1685B
Type
3.5 in H x 7.9 in W x 8.2 in D, Not Certified
Includes
USB Cable
Power Supply Type
Switching Digital DC
Line Regulation Current
50 mA
Line Regulation Voltage
More Than or Equal to 20mV
Load Regulation Current
100 mA
Load Regulation Voltage
20 mV
Ripple Voltage Regulation
Greater Than or Equal 5 mV
Calibration Certificate Type
Not Certified

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

B&K PRECISION Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The B&K PRECISION 1685B is a Switching Digital DC Power Supply. Key specifications include a Line Regulation Current of 50 mA, a Line Regulation Voltage of More Than or Equal to 20mV, a Load Regulation Current of 100 mA, a Load Regulation Voltage of 20 mV, and a Ripple Voltage Regulation of Greater Than or Equal 5 mV. This unit includes a USB Cable and is Not Certified.

Frequently Asked Questions

What is the B&K PRECISION 1685B DC power supply used for?

The B&K PRECISION 1685B switching digital DC power supply is used for powering and testing electronic circuits, components, and devices in labs, manufacturing, and repair shops. It provides stable DC output with line regulation voltage of 20 mV and load regulation current of 100 mA.

What are the specifications of the B&K PRECISION 1685B?

The B&K PRECISION 1685B is a switching digital DC power supply with line regulation current of 50 mA, load regulation voltage of 20 mV, and ripple voltage regulation of 5 mV. It includes a USB cable and measures 3.5 in H x 7.9 in W x 8.2 in D. It is not certified.

Where to buy the B&K PRECISION 1685B worldwide?

3G Electric supplies the B&K PRECISION 1685B switching DC power supply to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this model.

How to select a switching DC power supply like the B&K PRECISION 1685B?

When selecting a switching DC power supply, consider output voltage and current range, line and load regulation specs, and ripple. The B&K PRECISION 1685B offers 50 mA line regulation current and 20 mV load regulation voltage. Ensure the unit meets your application's stability and noise requirements.

Used in

Common applications for B&K PRECISION
R&D lab testing — B&K Precision 4040B sweep function generator for signal injection and frequency response analysis
Production line quality control — B&K Precision 2567B digital oscilloscope for waveform verification and FFT analysis
Field service data logging — B&K Precision DAS240-BAT portable data recorder with 20-channel module for multi-sensor monitoring
Power supply testing — B&K Precision DC electronic loads for load regulation and efficiency measurements
Educational electronics training — B&K Precision benchtop oscilloscopes and signal generators for student lab exercises
Automated test systems — B&K Precision rack-mounted power supplies with DRRM3U1 kit for integrated test racks

B&K PRECISION Products

3G Electric supplies B&K PRECISION switching digital dc power supplies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Related products

More from B&K PRECISION

View all B&K PRECISION parts
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1902B)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1902B)
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D, Not Certified (MPN 1687B)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D, Not Certified (MPN 1687B)
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1900B)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1900B)
B&K PRECISION DC Power Supply: Switching Digital DC, 4.33 in H x 8.66 in W x 14.17 in D, LED, 1694
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 4.33 in H x 8.66 in W x 14.17 in D, LED, 1694
B&K PRECISION DC Power Supply: Switching Digital DC, 8.67 in H x 8.67 in W x 11.82 in D, 2 Displays (MPN 1692)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 8.67 in H x 8.67 in W x 11.82 in D, 2 Displays (MPN 1692)
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D, Not Certified (MPN 1688B)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 8.2 in D, Not Certified (MPN 1688B)
B&K PRECISION DC Power Supply: Switching Digital DC, 6 in H x 2.8 in W x 5.8 in D, Not Certified (MPN 1550)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 6 in H x 2.8 in W x 5.8 in D, Not Certified (MPN 1550)
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1901B)
B&K PRECISION
B&K PRECISION DC Power Supply: Switching Digital DC, 3.5 in H x 7.9 in W x 10.8 in D, Not Certified (MPN 1901B)