Taiwan Semiconductor Corporation ES2BALH

Overview

ES2BALH from Taiwan Semiconductor is a 2 A, 100 V super fast surface-mount rectifier diode in a Thin SMA package, featuring 35 ns reverse recovery time, 0.88 V forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive use in snubber and freewheeling circuits.

For engineers reviewing the ES2BALH datasheet, ES2BALH pinout, ES2BALH application, or ES2BALH equivalent, key selection criteria include peak reverse voltage (100 V), surge current capability (50 A), junction temperature range (–55°C to +150°C), thermal resistance (R_θJL = 24°C/W), and RoHS/halogen-free compliance.

Technical Context

The ES2BALH is a single-die, glass-passivated silicon rectifier optimized for high-speed switching in DC/DC converters and automotive power supplies. Its 35 ns trr and low VF enable reduced switching losses, while the Thin SMA package supports automated placement and meets J-STD-020 moisture level 1.

Thermal performance is characterized with R_θJL = 24°C/W and R_θJA = 72°C/W on a 5 mm × 5 mm Cu pad PCB. The device operates across –55°C to +150°C junction temperature and exhibits IR ≤ 1 µA at 25°C and ≤25 µA at 125°C under rated VR.

Key Specifications

Pinout & Package

Package: Thin SMA - Surface-mount, low-profile (max height 1.3 mm), cathode-indicated by band, matte tin-plated leads, UL 94V-0 molding compound, weight 0.029 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2L06S and MBR2100F-E3/45, the ES2BALH uniquely combines AEC-Q101 qualification, 100 V/35 ns performance, Thin SMA footprint, and halogen-free construction-making it the preferred choice for space- and reliability-constrained automotive power stages.

Availability

ES2BALH is available at Aetrix Electronics and suitable for automotive body control modules, DC/DC converter freewheeling paths, and snubber networks requiring stable component supply, consistent lead-time visibility, and full traceability.

Supply support for ES2BALH 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.

The ES2BALH belongs to TSC's AEC-Q101-qualified Thin SMA rectifier family, engineered specifically for high-reliability, high-frequency power conversion in automotive and harsh-environment applications.

FAQ

What is the maximum junction temperature rating for the ES2BALH?

The ES2BALH has a maximum junction temperature (T_J) of +150°C and a minimum of –55°C, fully specified across this range per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive locations and high-ambient industrial enclosures. Thermal derating curves confirm usable current capacity down to zero at 150°C ambient when mounted on a 5 mm × 5 mm Cu pad. The ES2BALH must be thermally anchored to maintain junction temperature within limits during sustained 2 A conduction.

Is the ES2BALH pin-compatible with other devices in the ES2xALH series?

No-the ES2BALH shares the same Thin SMA package and anode/cathode pinout with ES2DALH, ES2GALH, and ES2JALH, but its 100 V V_RRM rating is specific to the 'B' variant. While mechanical mounting is identical, substituting higher-voltage variants (e.g., ES2JALH) does not degrade functionality in 100 V circuits, but using ES2BALH in >100 V applications risks premature breakdown. Always verify reverse voltage margin against system transients before cross-series substitution.

Does the ES2BALH require special handling during PCB assembly?

No-ES2BALH is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into standard reflow profiles without baking. Its matte tin-plated leads comply with J-STD-002 for solderability, and the UL 94V-0 molding compound withstands peak reflow temperatures up to 260°C. No special flux or nitrogen atmosphere is required for ES2BALH assembly.

What is the reverse leakage current specification for ES2BALH at elevated temperature?

The ES2BALH specifies reverse current (I_R) ≤1 µA at 25°C and ≤25 µA at 125°C under rated V_RRM. These values are measured per pulse test (PW = 30 ms) and reflect stable junction behavior across automotive operating conditions. At 150°C, leakage remains below 50 µA-well within design margins for snubber and freewheeling roles where low standby loss is critical. The ES2BALH's glass passivation helps maintain this low IR over lifetime.

Can ES2BALH be used as a direct replacement for older SMA-package rectifiers like 1N5819?

ES2BALH is not a direct replacement for 1N5819 due to key differences: ES2BALH offers 35 ns t_rr vs. 1N5819's ~40–60 ns, lower V_F (0.88 V vs. ~0.45 V at 1 A but higher at 2 A), and AEC-Q101 qualification. While both fit SMA footprints, ES2BALH's tighter trr improves high-frequency efficiency but its higher V_F at light loads may affect low-power regulation. System-level validation is required before drop-in use of ES2BALH in legacy 1N5819 designs.