Diodes Incorporated TT6JL

Overview

TT6JL from Diodes Incorporated is a 6A, 600V glass-passivated bridge rectifier in TTL package, featuring low forward voltage (0.9 V max @ 3A), 5 µA max reverse leakage at 600V, and UL 94V-0 green molding compound. It delivers reliable AC-to-DC conversion in offline power supplies, LED drivers, and industrial motor controls where thermal efficiency and RoHS compliance are critical.

For engineers reviewing the TT6JL datasheet, TT6JL pinout, TT6JL application, or TT6JL equivalent, key selection criteria include peak repetitive reverse voltage (600 V), average forward current rating (6 A), thermal resistance junction-to-ambient (45 °C/W without heatsink), and compatibility with lead-free reflow profiles per J-STD-020 Level 1.

Technical Context

The TT6JL integrates four silicon diodes in a single-phase full-wave bridge configuration with glass-passivated junctions for enhanced surge robustness and long-term reliability under repetitive line-voltage transients. Its TTL package uses matte tin-plated leads and supports PCB mounting without heatsinking up to 6A at 25°C ambient.

Thermal performance is characterized by R_θJA = 45 °C/W (no heatsink) and 10 °C/W (with specified AL heatsink), enabling operation across -55°C to +150°C junction temperature range. The device exhibits typical junction capacitance of 85 pF at 1 MHz and 4 V reverse bias, supporting stable switching behavior in 50/60 Hz and higher-frequency rectification.

Key Specifications

Pinout & Package

Package: TTL (single-phase bridge rectifier outline per Diodes Inc. package drawings; 10.2 mm × 9.9 mm × 1.55 mm body height; 4.9 mm lead pitch).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bridge rectifier applications.

Compared with GBU6K and DBL610, TT6JL uniquely combines UL 94V-0 recognition, 0.9 V VF ceiling, and 5 µA IR in the compact TTL footprint-making it optimal for space-constrained, safety-certified industrial and appliance designs requiring balanced efficiency and regulatory compliance.

Availability

TT6JL is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and appliance motor control boards requiring stable component supply, RoHS compliance, and long-lifecycle support.

Supply support for TT6JL 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, specializing in high-reliability power management, signal integrity, and protection solutions.

The TT6JL belongs to Diodes' high-voltage bridge rectifier product line, engineered for cost-effective, thermally efficient AC/DC conversion in safety-critical and high-volume consumer, industrial, and automotive auxiliary power applications.

FAQ

What is the maximum operating temperature for TT6JL?

The TT6JL has a specified junction and storage temperature range of -55°C to +150°C. Its thermal resistance junction-to-ambient is 45 °C/W without heatsink, meaning at 25°C ambient and 6A load, junction temperature reaches approximately 292°C-exceeding rating-so derating per Figure 1 is mandatory. With heatsink, RθJA drops to 10 °C/W, enabling full 6A operation at 75°C ambient.

Is TT6JL suitable for automotive applications?

TT6JL is not AEC-Q101 qualified out-of-box, but Diodes states that automotive-grade versions with AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing are available upon request. Standard TT6JL may be used in non-safety-critical automotive auxiliary systems if validated per customer requirements, though its -55°C to +150°C rating supports under-hood thermal environments.

Does TT6JL require a heatsink for 6A operation?

Yes. At 25°C ambient, Figure 1 shows the derated IF(AV) without heatsink is ~3.5A. To sustain 6A continuously, a heatsink achieving RθJA ≤ 10 °C/W is required-matching the documented value for the specified aluminum fin heatsink. PCB copper area alone is insufficient for full-rated current without thermal derating.

What does "Green" mean for TT6JL?

"Green" denotes Diodes' halogen- and antimony-free definition: <900 ppm bromine, <900 ppm chlorine (<1500 ppm total Br+Cl), and <1000 ppm antimony compounds. This satisfies IPC-1752A Class 2 requirements and exceeds RoHS 3 (2015/863/EU), supporting environmentally regulated markets and end-of-life recycling compliance.