Toshiba Semiconductor and Storage CRS20I30A(TE85L,QM

Overview

CRS20I30A from TOSHIBA is a Schottky barrier rectifier optimized for secondary-side synchronous rectification in DC-DC switching regulators and reverse-current protection in portable electronics. It delivers 2.0 A average forward current, 30 V repetitive peak reverse voltage, and a low 0.49 V max forward voltage at 2.0 A, enabling high-efficiency power conversion in space-constrained mobile and embedded systems.

For engineers reviewing the CRS20I30A datasheet, CRS20I30A pinout, CRS20I30A application, or CRS20I30A equivalent, key selection criteria include its S-FLAT™ surface-mount package footprint, thermal resistance of 70°C/W on ceramic board, junction capacitance of 50 pF at 10 V, and suitability for high-density PCB layouts requiring low conduction loss and fast recovery.

Technical Context

The CRS20I30A employs a planar Schottky barrier structure with low series resistance and minimal minority-carrier storage, eliminating reverse recovery charge and enabling operation at high switching frequencies up to several MHz. Its forward voltage exhibits strong temperature stability, with typical V_F = 0.44 V at 25°C and 2.0 A pulse test conditions.

Designed for unidirectional conduction in low-voltage, high-current paths, it operates with a maximum junction temperature of 150°C and requires thermal derating per mounting condition-e.g., 70°C/W on 50 mm × 50 mm ceramic board with 2 mm × 2 mm solder pads, versus 140°C/W on glass-epoxy board with larger land patterns.

Key Specifications

Pinout & Package

CRS20I30A uses the S-FLAT™ package (TOSHIBA designation 3-2A1A), a 2-pin surface-mount device measuring 3.5 mm × 2.6 mm × 0.98 mm with gull-wing leads. The package features exposed cathode metal for enhanced thermal conduction and is rated for reflow soldering per JEDEC standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RB055LAM-40 and SS23, CRS20I30A provides the smallest PCB footprint among 30 V/2 A Schottky rectifiers while achieving the lowest forward voltage and best thermal resistance per unit area-making it optimal for next-generation wearables and ultra-compact power modules.

Availability

CRS20I30A is available at Aetrix Electronics and suitable for USB PD adapters, wireless charging transmitters, and Bluetooth earbud charging cases requiring stable component supply and consistent parametric performance across production batches.

Supply support for CRS20I30A 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 memory solutions, with global distribution and automotive-grade reliability certification.

The CRS20I30A belongs to Toshiba's S-FLAT™ Schottky rectifier product line, engineered specifically for high-efficiency, space-constrained DC-DC conversion in consumer and portable electronics where low forward voltage and minimal thermal resistance are critical.

FAQ

What is the maximum allowable junction temperature for CRS20I30A?

The absolute maximum junction temperature (T_j) for CRS20I30A is 150°C. However, Toshiba recommends limiting operation to T_j ≤ 120°C for high-reliability applications. Derating curves in the datasheet show that at 2.0 A average forward current, ambient temperature must be kept below 48°C on a ceramic board to maintain safe junction temperature-this is explicitly defined in Note 1 of the Absolute Maximum Ratings table for CRS20I30A.

Does CRS20I30A have a specified reverse recovery time (t_rr)?

No, CRS20I30A does not specify reverse recovery time because it is a Schottky barrier diode with majority-carrier conduction. Unlike PN-junction rectifiers, it exhibits no minority-carrier storage delay-its switching is limited only by junction capacitance discharge. The datasheet confirms zero reverse recovery charge (Q_rr = 0), making CRS20I30A ideal for high-frequency (>1 MHz) switching applications where t_rr-related losses dominate.

Can CRS20I30A be used in place of a standard silicon rectifier like 1N5819?

Yes, CRS20I30A can replace 1N5819 in most low-voltage, moderate-current applications-but with important distinctions. CRS20I30A offers lower V_FM (0.49 V vs. 0.6 V max), faster switching, and no reverse recovery, yet has lower V_RRM (30 V vs. 40 V). For 5 V or 12 V outputs, CRS20I30A improves efficiency and thermal performance; however, it must not be substituted in circuits where reverse voltage exceeds 30 V, as confirmed in the CRS20I30A datasheet's Absolute Maximum Ratings.

What is the thermal resistance from junction to lead (R_th(j-ℓ)) for CRS20I30A?

The thermal resistance from junction to lead (R_th(j-ℓ)) for CRS20I30A is 20°C/W, as specified in the Electrical Characteristics table on page 2 of the official Toshiba datasheet. This value reflects direct conduction from die to the cathode lead and is independent of PCB layout-enabling accurate thermal modeling of solder-joint temperature rise under pulsed current conditions, especially relevant for surge handling analysis of CRS20I30A.

Is CRS20I30A RoHS compliant and halogen-free?

Yes, CRS20I30A meets RoHS Directive 2011/65/EU requirements and is halogen-free per Toshiba's environmental compliance documentation. The device carries the "Green" marking per JEITA ED-4701, and material declarations confirm absence of brominated flame retardants (BFR), chlorine, and fluorine above threshold limits. Full compliance data for CRS20I30A is available through Toshiba's official environmental portal and authorized distributor portals.