Diodes Incorporated LL6263-7

Overview

LL6263-7 from Diodes Incorporated is a Schottky barrier switching diode in MiniMELF glass package, rated for 60 V peak repetitive reverse voltage, 15 mA forward continuous current, and 1.0 ns reverse recovery time, used in high-speed signal clamping and low-loss DC-DC converter freewheeling paths.

For engineers reviewing the LL6263-7 datasheet, LL6263-7 pinout, LL6263-7 application, or LL6263-7 equivalent, key selection criteria include forward voltage drop at 15 mA (≤1.0 V), junction capacitance at 0 V (2.0 pF), thermal resistance (375 K/W), and MiniMELF mechanical compatibility with automated placement systems.

Technical Context

This Schottky diode leverages guard ring construction to suppress transient-induced avalanche breakdown and supports fast switching with sub-nanosecond reverse recovery (trr = 1.0 ns) under IF = IR = 5.0 mA, RL = 100 Ω test conditions. Its low 0.41 V typical forward voltage at 1.0 mA enables efficient biasing in low-power detection circuits.

The device operates across –65 °C to +175 °C and exhibits only 200 nA maximum reverse leakage at VR = 50 V, making it suitable for high-reliability industrial sensing nodes where leakage-induced offset must be minimized.

Key Specifications

Pinout & Package

MiniMELF glass package with axial leads: anode and cathode terminals identified by single cathode band marking; solderable per MIL-STD-202, Method 208; dimensions A = 3.30–3.70 mm, B = 1.30–1.60 mm, C = 0.28–0.50 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky barrier switching diode applications.

Compared with BAT54C-7-F and 1N5711, LL6263-7 uniquely balances 60 V rating, 1.0 ns switching, and MiniMELF form factor-making it optimal for high-frequency, single-diode, through-hole or pick-and-place–compatible designs requiring tight timing control and low leakage.

Availability

LL6263-7 is available at Aetrix Electronics and suitable for RF detection, low-power sensor biasing, DC-DC converter freewheeling, and high-speed logic level translation requiring stable component supply across production lifecycles.

Supply support for LL6263-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.

The LL6263 belongs to Diodes' high-speed Schottky diode product line, engineered specifically for RF, portable, and space-constrained applications demanding low capacitance, fast recovery, and robust transient immunity.

FAQ

Is LL6263-7 suitable for use in 5 GHz Wi-Fi front-end detectors?

Yes. With 2.0 pF junction capacitance at 0 V and 1.0 ns reverse recovery time, LL6263-7 maintains signal fidelity up to 5 GHz in zero-bias detector configurations. Its MiniMELF package provides repeatable parasitic control, and measured Cj vs. VR curve (Fig. 2) confirms stable capacitance below 3 pF across 0–20 V reverse bias-critical for wideband RF envelope extraction.

What is the maximum allowable PCB pad temperature during reflow soldering?

The LL6263-7 glass MiniMELF package is rated for peak reflow temperatures up to 260 °C for 10 seconds per JEDEC J-STD-020. The device's thermal resistance (RJA = 375 K/W) and glass-body construction allow safe hand-soldering or vapor-phase reflow without cracking, provided preheat ramp rate stays below 3 °C/s and dwell time above 220 °C does not exceed 60 seconds.

Does LL6263-7 meet automotive AEC-Q200 requirements?

No. LL6263-7 is not AEC-Q200 qualified. It operates from –65 °C to +175 °C and passes standard reliability tests (HTOL, TCT), but Diodes Incorporated does not list it in their AEC-Q200-certified portfolio. For automotive applications, consider the AEC-Q200–qualified LL6263Q-7 variant, which shares identical electrical specs but includes extended qualification testing and traceability.

Can LL6263-7 replace 1N5711 in existing designs without layout changes?

Yes-mechanically and electrically. Both use identical MiniMELF package with same A/B/C dimensions and cathode-band polarity marking. LL6263-7 offers lower VFM (1.0 V vs. 1.2 V at 15 mA) and faster trr (1.0 ns vs. 5 ns), improving efficiency and timing margin. No PCB modification is needed, though system-level validation of reduced forward loss and improved transient response is recommended.