·Some details are not shown. Please refer to specification sheets for all information.

MDP-D

Lightning Surge Protectors for
Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR
DC POWER SUPPLY USE

Functions & Features
• Designed specifically for 12 V/24 V DC power supplies of small capacity
• Absorbs surges only without affecting instrumentation signal
• Monitor LED
Typical Applications
• DC power sources, switching regulators
• Power source for electronic devices
 

MODEL: MDP–D[1][2]

ORDERING INFORMATION
• Code number: MDP-D[1][2]
 Specify a code from below for each [1] and [2].
 (e.g. MDP-D24/A33/Q)
• Specify the specification for option code /Q
 (e.g. /C01)

[1] OPERATIONAL VOLTAGE
12: 12 V DC
24: 24 V DC

[2] OPTIONS (multiple selections)
DIN Rail Mounting Adapter
blank: Without
/A33: With adapter (model A-33)
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating

GENERAL SPECIFICATIONS
Construction: Plug-in
Surge protection type: Voltage limiting type two-port SPD
Connection: M4 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)
Monitor LED: Green light turns ON during the power is supplied; OFF when the voltage limiter is failed.

INSTALLATION
Power input: Max. output current 1 A
Use a DC power source with the overload current protection.
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 140 g (0.31 lb), standard
165 g (0.36 lb), with DIN rail mounting adapter

PERFORMANCE
Max. continuous operating voltage (Uc): 
 MDP-D12 Line to line: 14 V 
 MDP-D24 Line to Line: 27 V  
 Line to earth: ±160 V
Voltage protection level (Up):
 MDP-D12 Line to line: 20 V 
 MDP-D24 Line to Line: 40 V
 Line to earth: ±650 V
Response time:
 Line to line: ≤ 4 nsec.
 Line to earth: ≤ 20 nsec.
Leakage current:
 MDP-D12 Line to line: ≤ 3 mA @ 14 V DC
 MDP-D24 Line to line: ≤ 6 mA @ 27 V DC
 Line to earth: ≤ 0.1 mA @ ±160 V DC
Max. discharge current (Imax): 5000 A (8 / 20 μs)
Nominal current (IN): 1.0 A
Internal series resistance: ≤ 0.6 Ω (including return)
Surge protection: IEC 61643-1 Class III

STANDARDS & APPROVALS
EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
RoHS Directive
  EN 50581

CONNECTION EXAMPLES

GROUNDING

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

MOUNTING REQUIREMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Co., Ltd.