MLCE33A Microchip

MLCE6.5 MLCE170A Screening in 1500 Watt Low Capacitance reference to Available MIL-PRF-19500 Transient Voltage Suppressor available DESCRIPTION This high-reliability plastic encapsulated Transient Voltage Suppressor (TVS) diode series for thru-hole mounting includes a rectifier diode element in series and in the opposite direction. This allows it to present a very low (< 100 pF) capacitance to the system it is protecting (see Figure 2). The low capacitance of these devices makes them particularly useful for protecting lines carrying high frequency signals. They are also useful in protecting from the secondary effects of lightning in airborne avionics per IEC61000-4-5, RTCA/DO-160G, and ARINC 429. If bidirectional transient capability is required, two of these low capacitance TVS devices may be used in parallel and opposite directions (anti-parallel) for complete ac protection. Important: For the latest information, visit our website MLCE6.5 MLCE170A MAXIMUM RATINGS @ 25 C unless otherwise stated Parameters/Test Conditions Symbol Value Unit Junction and Storage Temperature T and T -65 to +150 C J STG (1) Thermal Resistance Junction-to-Lead R 22 C/W JL P 1500 W Peak Pulse Power dissipation @ 25 C (at 10/1000 s, PP (2) see Figures 1, 2, and 3) Rated Average Power Dissipation T = +40 C P 5.0 W L M(AV) (1) T = +25 C 1.52 A o Solder Temperature @ 10 s T 260 C SP Notes: 1. At 3/8 inch (10 mm) from body, or 82 C/W junction to ambient when mounted on FR4 PC board with 4 mm2 copper pads (1oz), track width 1 mm, length 25mm. 2. With a impulse repetition rate of 0.01% or less. TVS devices are not typically used for dc power dissipation and are instead operated at V except for transients that briefly drive the device into avalanche breakdown (V to V region) of the TVS element. Also see WM BR C Application Schematics for further protection details in rated peak power for unidirectional and bidirectional configurations respectively. MECHANICAL and PACKAGING CASE: Void-free transfer molded thermosetting epoxy body meeting UL94V-0. TERMINALS: Tin-lead or RoHS compliant annealed matte-tin plating. Solderable to MIL-STD-750, method 2026. MARKING: Part number. POLARITY: Cathode indicated by band. TAPE & REEL option: Standard per EIA-296 (add TR suffix to part number). Consult factory for quantities. WEIGHT: Approximately 1.5 grams. See Package Dimensions on last page. PART NOMENCLATURE M LC E 6.5 A e3 Reliability Level RoHS Compliance M e3 = RoHS Compliant MA Blank = non-RoHS Compliant MX MXL Tolerance Level *(see High Reliability A = +/- 5% Non-Hermetic Product Blank = +/- 10% Portfolio) Reverse Stand-Off Voltage Low Capacitance (see Electrical Characteristics Rated table) Encapsulated Plastic Package RF01009, Rev. B (5/7/13) 2013 Microsemi Corporation Page 2 of 5