1PMT5309 Datasheet

Current Limiter Diode


Features, Applications

Surface-mount equivalent to 1N5283 thru 1N5314 series Popular Microsemi Powermite� surface-mount package Nominal current regulation from 0.22 and 4.70 mA Broad operating voltage Constructed with an Oxide Passivated All Diffused Die Full metallic bottom eliminates flux entrapment Integral Heat Sink Locking Tabs for excellent thermal dissipation and improved current regulation

Operating and Storage Temperature: +150�C DC Power Dissipation: TL 135�C Power Derating: > 135�C Peak operating voltage: 100 Volts

Terminals: Leads tin plated Thermal resistance: 30�C/W junction to Tab 1 Polarity: Cathode indicated by a band Packaging: Tape and Reel (EIA Standard RS-481) Weight 0.016 gram Mounting position any way

Tape and Reel Standard 481 7 inch Reel 3,000 Pieces 13 inch Reel 12,000 Pieces

NOTE ZS is measured by superimposing 90 Hz rms signal VS on VS. NOTE ZK is derived by superimposing 90 Hz rms signal VK on VK.

Typical Forward Characteristics ID FORWARD DIODE CURRENT (mA)
VAK ANODE- CATHODE VOLTAGE (VOLTS) Temperature Coefficient
IP NOMINAL PINCH-OFF CURRENT (mA) Temperature Coefficient

Diode Current IL Limiting Current of IP minimum used to determine Limiting Voltage, V L Current Temperature Coefficient. V AK anode to cathode Voltage Pinch-off Current: Regulator current at specified Test Voltage, IP is some times identified as IS Peak Operating Voltage: Maximum voltage to be applied to the device. Knee Impedance test voltage: Specified voltage used to establish Knee Impedance Limiting Voltage: Measured at IL, V L, together with Knee ac Impedance, ZK , indicates the Knee characteristic of the device TEST VOLTAGE: Voltage at which IP and ZS are specified Knee ac impedance at Test Voltage: To test a 90Hz signal V K with rms value equal 10% of test voltage K is superimposed V K /iK where iK is the resultant ac current due K. To provide the most constant current from the diode, ZK should be as high as possible, therefore, a minimum value ZK is specified. AC Impedance at Test Voltage: Specified as a minimum value. To test for 90 Hz signal V S with rms value equal 10% of test voltage, S is superimposed v S /iS where iS is the current due v S.



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Manufacturer information


Microsemi Corporation offers a comprehensive portfolio of semiconductor and system solutions for aerospace & defense, communications, data center and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world’s standard for time; voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services.

Microsemi is now a subsidiary of Microchip Technology Inc.

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