Model 1688B

1685B Series

1-18V 0-20A Switching DC Power Supply

Price: $415 / 2 yr Warranty

Name Qty Last Updated
VALUETRONICS 7 2022-10-01
MOUSER ELECTRONICS 55 2022-10-01
DIGI-KEY 81 2022-10-03
SEFRAM 22 2022-10-03
NEWARK 114 2022-10-05
FARNELL 8 2022-10-05
DISTRELEC 3 2022-10-05
TESTEQUITY 10 2022-10-05
WHOLE SALE ELECTRONICS 22 2022-10-05
ALLIED ELECTRONICS 16 2022-10-05

Overview

The B&K Precision 1688B is a switching mode DC power supply with a variable voltage output from 1 to 18V and variable current output from 0 to 20A. In addition to its constant voltage (CV) and constant current (CC) modes, the high efficiency DC power supply offers a unique solution with its preset and remote control modes. Save up to three different presets of voltage and current values for quick recall. For remote control, an analog remote control is accessible on the rear, or use the USB interface to communicate with the power supply via PC software or remote commands. These features make the 1688B suitable for a wide range of applications including production testing, telecommunications, R&D, electronic field service, and university labs.

  • Automatic CV/CC crossover operation
  • Lightweight and compact
  • Rotary encoder control for precise voltage and current setting
  • 3 user-defined voltage and current presets
  • USB interface with PC software for remote control and external timed programming
  • Analog remote control function
  • Overvoltage, overtemperature, and overload protection

Models

Product Max Voltage Max Current Max Power Number of Outputs Interface MSRP
1688B 18 V 20 A 360 W 1
USB
Analog
$415
1687B 36 V 10 A 360 W 1
USB
Analog
$415
1685B 60 V 5 A 300 W 1
USB
Analog
$415

Documents

Documentation


Software

Description

Version

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Accessories

TLPWR1

High current premium test lead accessory

TLPWR1

High quality red and black cable with externally braided wrap with large fork-type spade connectors for connecting to high current power supplies or DC loads.

  • Length: 2 m
  • Rated current: 60 A
  • Gauge: 8 AWG
  • Connector inner diameter: 8 mm (approximate)
  • Connector outer width: 15 mm (approximate)
  • Wire material: flexible silicon jacket

MSRP
$110
TL 5A

5A Hook-Up Cable Set

TL 5A

 

  • 4mm Banana plug to alligator clip
  • 5A rating
  • Black and Red pair
  • 40" (1.0m) length

 

MSRP
$11
TLPS

Power Supply Test Leads Set

TLPS

This accessory kit combines safety and functionality. A must have for anyone who uses power supplies or loads.

  • Medium and large insulated alligator clips
  • Black and red components
  • Sense lead included

 

 

Description Max current
Red and black test lead (120 cm) 25 A
Spade lug adapters (6 & 4 mm) 36 A
Standard alligator clips 3 A
4 mmBanana plug adapters 36 A
Large insulated alligator clips 36 A
Red and black sense leads (10 cm) 3 A

MSRP
$57
TLPWR31

100 cm Premium Spade Connector Test Lead Set

TLPWR31

High quality red and black cable dual diameter spade connectors for connecting to power supplies or DC loads.

  • Length: 1 meter
  • Rated current: 30 A
  • Connectors: 6/4 mm Spade lug
  • Wire material: flexible silicon jacket

MSRP
$45
TLPWR32

200 cm Premium Spade Connector Test Lead Set

TLPWR32

High quality red and black cable dual diameter spade connectors for connecting to power supplies or DC loads.

  • Length: 2 meter
  • Rated current: 30 A
  • Connectors: 6/4 mm Spade lug
  • Wire material: flexible silicon jacket

MSRP
$56

Additional Resources

File

Description