Diodes Incorporated BAT64T5Q-7-F

Overview

BAT64T5Q-7-F from Diodes Incorporated is an AEC-Q101 qualified surface-mount Schottky barrier diode in SOD523 package, rated for 40 V peak reverse voltage, 250 mA forward current, and 0.725 V max forward voltage at 100 mA. It features a PN junction guard ring for transient protection and is optimized for automotive signal rectification and ESD-sensitive RF detector circuits.

For engineers reviewing the BAT64T5Q-7-F datasheet, BAT64T5Q-7-F pinout, BAT64T5Q-7-F application, or BAT64T5Q-7-F equivalent, key selection criteria include low VF at low IF, sub-5 ns reverse recovery time, 6 pF junction capacitance at 5 V, and IATF 16949-certified manufacturing for automotive-grade reliability.

Technical Context

This Schottky diode uses a platinum-silicide or similar low-barrier metal-semiconductor junction to achieve fast switching (tRR ≤ 5.0 ns) and low forward conduction loss. Its guard-ringed die structure suppresses edge breakdown under transient stress, enabling robust operation in automotive CAN/LIN bus interface clamping and RF envelope detection.

The SOD523 package imposes strict thermal limits: RθJA = 500°C/W on FR-4, requiring derating above 25°C ambient - power dissipation drops linearly to zero at 150°C per Figure 4. Junction temperature must remain within –65°C to +150°C for AEC-Q101 compliance.

Key Specifications

Pinout & Package

Package: SOD523 - ultra-small plastic surface-mount package (1.25 mm × 0.85 mm × 0.65 mm), moisture sensitivity level 1, matte tin-plated alloy 42 leadframe, cathode band marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBAT54ALT1G and NSVRB75M3T5G, the BAT64T5Q-7-F uniquely balances ultra-low VF, sub-5 ns tRR, and AEC-Q101 compliance in the smallest footprint - making it optimal for automotive RF and high-density signal conditioning.

Availability

BAT64T5Q-7-F is available at Aetrix Electronics and suitable for automotive LIN bus interfaces, UHF RFID reader front-ends, and low-power sensor bias feed circuits requiring stable component supply and full AEC-Q101 traceability.

Supply support for BAT64T5Q-7-F 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, manufacturing, and sales operations across Asia, Europe, and the Americas.

The BAT64T5Q belongs to Diodes' automotive-qualified Schottky diode product line, engineered specifically for signal integrity, transient robustness, and space-constrained placement in vehicle networking and wireless sensing subsystems.

FAQ

Is BAT64T5Q-7-F suitable for 5 V logic-level clamping?

Yes. With VRRM = 40 V and VF ≈ 0.31 V at 1 mA, it safely clamps 5 V digital signals while adding negligible forward drop. Its 6 pF capacitance avoids timing skew in GPIO protection, and the guard ring ensures reliable operation under IEC 61000-4-2 ESD events up to ±8 kV contact discharge.

What is the maximum allowable junction temperature during continuous operation?

The absolute maximum junction temperature is +150°C, but continuous operation must stay within the derated power curve: PD = 250 mW at TA = 25°C, decreasing linearly to 0 mW at TA = 150°C (RθJA = 500°C/W). At 85°C ambient, max continuous power is 125 mW - corresponding to ~175 mA IF at VF ≈ 0.65 V.

Does BAT64T5Q-7-F require special PCB layout considerations?

Yes. Diodes specifies a dedicated SOD523 pad layout (available at diodes.com/package-outlines.html) with controlled copper area to manage thermal resistance and solder joint reliability. Excessive pad size increases RθJA; insufficient thermal relief risks tombstoning. Cathode band orientation must match silkscreen polarity marking.

Can BAT64T5Q-7-F replace BAT54 in existing designs?

Only with validation. While both are Schottky diodes, BAT64T5Q-7-F has lower VF (0.725 V vs. 0.85 V max), faster tRR (5 ns vs. 5 ns typical but not guaranteed), and AEC-Q101 qualification - but its SOD523 footprint differs from BAT54's SOT-23. Electrical compatibility exists; mechanical redesign is required.