Toshiba Semiconductor and Storage CRG09A,LQ(M

Overview

CRG09A from Toshiba Electronic Devices & Storage Corporation is a silicon diffused junction general-purpose rectifier diode in an S-FLAT (3-2A1S) surface-mount package, rated for 400 V repetitive peak reverse voltage (V_RRM), 1.0 A average forward current (I_F(AV)), and 1.1 V maximum peak forward voltage (V_FM) at 0.7 A pulse. It delivers high ESD protection (±25 kV contact per IEC 61000-4-2) and supports high-density PCB layouts.

For engineers reviewing the CRG09A datasheet, CRG09A pinout, CRG09A application, or CRG09A equivalent, this diode is selected for low-profile AC/DC front-end rectification, auxiliary power supply bridges, and compact consumer adapter designs where thermal resistance (R_th(j-a) = 65 °C/W on ceramic board) and thin-package mounting are critical.

Technical Context

The CRG09A implements a single silicon PN junction with diffused construction optimized for reliable half-wave and full-wave rectification in low-to-medium power applications. Its thermal design targets operation up to 150 °C junction temperature with derating guidance provided for ambient temperatures above 66 °C.

Electrical behavior is defined by pulse-tested forward conduction (IFM = 0.1–1.0 A) and reverse leakage (IRRM ≤ 5 µA at VRRM = 400 V), with ESD robustness validated using 150 pF/2 kΩ and 330 pF/2 kΩ contact discharge models. The device exhibits no specified switching speed parameters and is not characterized for fast-recovery or soft-recovery operation.

Key Specifications

Pinout & Package

S-FLAT (TOSHIBA package code 3-2A1S) is a 2-pin, ultra-thin surface-mount package weighing 0.013 g (typ.), designed for high-density mounting with minimal board footprint and low profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RB050M-40 and VS-1N4007-M3/54, the CRG09A uniquely balances ultra-low profile (S-FLAT), industry-leading ESD immunity (±25 kV), and proven reliability in high-volume consumer power supplies - making it optimal for next-generation compact, robust, and cost-sensitive rectifier applications.

Availability

CRG09A is available at Aetrix Electronics and suitable for AC/DC wall adapters, USB-C power delivery auxiliary rails, and smart home sensor power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for CRG09A 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

Toshiba Electronic Devices & Storage Corporation is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with decades of expertise in silicon rectifier and MOSFET technology.

The CRG09A belongs to Toshiba's general-purpose rectifier diode product line, engineered specifically for high-density, cost-sensitive AC/DC conversion in consumer and industrial power supplies where thin-profile packaging and ESD resilience are mandatory.

FAQ

What is the maximum junction temperature rating for the CRG09A?

The CRG09A has a maximum junction temperature (T_j) rating of 150 °C. Operation above this limit risks permanent degradation. Designers must apply derating rules - especially limiting I_F(AV) to ≤80% of 1.0 A and maintaining T_j ≤120 °C - using the provided R_th(j-a) = 65 °C/W and ambient temperature data. Thermal simulation or board-level testing is recommended for high-power density layouts.

Does the CRG09A support full-wave bridge configurations?

Yes, the CRG09A can be used in full-wave bridge rectifiers when four units are assembled in standard bridge topology. Each CRG09A serves as one quadrant with its anode and cathode terminals correctly oriented. Its 400 V V_RRM supports up to 280 VAC RMS input (400 V peak), and its 15 A I_FSM handles typical bridge inrush currents. Ensure symmetrical PCB layout and thermal coupling for balanced current sharing.

What does the marking "G9A" indicate on the CRG09A package?

The marking "G9A" is the standardized Toshiba top-side laser marking code for the CRG09A device. It appears on the S-FLAT package surface and corresponds exclusively to the CRG09A part number - not to any variant, date code, or revision. This marking enables visual identification and traceability during automated optical inspection (AOI) and manual assembly verification.

Is the CRG09A RoHS compliant and lead-free?

Yes, the CRG09A is RoHS compliant and lead-free, meeting EU Directive 2011/65/EU requirements. Toshiba confirms compliance in its official environmental documentation, and the device carries appropriate markings per JEDEC J-STD-609. No exemptions are applied; soldering profiles follow standard Pb-free reflow guidelines (peak temperature ≤260 °C, 10-second dwell).

How does the CRG09A's ESD rating compare to standard rectifiers?

The CRG09A provides ±25 kV contact ESD protection per IEC 61000-4-2 - significantly exceeding typical general-purpose rectifiers (often untested or rated ≤8 kV). This is achieved via proprietary junction passivation and layout hardening. In practice, this allows direct placement on AC-input traces or near USB connectors without external TVS diodes, reducing BOM count and board area in cost-sensitive designs.