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CMJA5050

Central Semiconductor
Part Number CMJA5050
Manufacturer Central Semiconductor
Description CURRENT LIMITING DIODE
Published Jul 7, 2020
Detailed Description CMJA5050 SURFACE MOUNT SILICON ADJUSTABLE CURRENT LIMITING DIODE 50V, 50-80mA w w w. c e n t r a l s e m i . c o m DESC...
Datasheet PDF File CMJA5050 PDF File

CMJA5050
CMJA5050


Overview
CMJA5050 SURFACE MOUNT SILICON ADJUSTABLE CURRENT LIMITING DIODE 50V, 50-80mA w w w.
c e n t r a l s e m i .
c o m DESCRIPTION: The CENTRAL SEMICONDUCTOR CMJA5050 is a silicon field effect adjustable current regulating diode designed for applications requiring a constant current over a wide voltage range.
MARKING CODE: CA50 DFN123F CASE APPLICATIONS: • LED lighting and displays • AC lighting panels • Decorative lighting • Test and measurement equipment FEATURES: • Constant current range • Adjustable regulation up to 80mA • Wide operating voltage • Negative temperature coefficient for LED protection • Eliminates need for additional regulation MAXIMUM RATINGS: (TA=25°C) Peak Operating Voltage SYMBOL POV Power Dissipation PD Power Dissipation (Note 1) PD Operating and Storage Junction Temperature TJ, Tstg Thermal Resistance JA Thermal Resistance (Note 1) JA Note 1: Mounted on 300mm2 4-layer PCB with 2-ounce copper traces.
50 570 1.
0 -65 to +150 220 125 UNITS V mW W °C °C/W °C/W ELECTRICAL CHARACTERISTICS: (TA=25°C) Steady State Regulator Current* Maximum Limiting Voltage Maximum Temperature Coefficient** IL @ VT=12V MIN NOM MAX mA mA mA VL @ IL=0.
8 x IP MIN V TC mA/°C 45 50 55 8.
5 -0.
3 *Measured after applying DC test voltage for 90 seconds duration or greater with device mounted on FR-4 PC Board with 2oz.
copper mounting pad area of 300mm2 in still air.
**Measured between 25°C and 50°C.
Pulsed Regulator Current* Maximum Limiting Voltage Maximum Temperature Coefficient** IP @ VT=20V MIN NOM MAX mA mA mA 72 80 88 *Pulse width <1.
0ms **Measured between 25°C and 50°C.
VL @ IL=0.
8 x IP MIN V 8.
0 TC mA/°C -0.
3 R3 (10-August 2020) CMJA5050 SURFACE MOUNT SILICON ADJUSTABLE CURRENT LIMITING DIODE 50V, 50-80mA Adjustment Compensation Resistance: Placing resistors in parallel with a CLD allows the regulator current to be adjusted from 50mA to 80mA.
This also corrects any current decrease when the applied voltage increases d...


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