STMicroelectronics STTH2R02UY

Overview

STTH2R02UY from STMicroelectronics is an AEC-Q101-qualified 2 A, 200 V ultrafast recovery diode using platinum-doped planar technology, optimized for high-frequency switching mode base drive and transistor circuits with low conduction losses (VF(typ.) = 0.7 V at 2 A), trr(typ.) = 15 ns, and Tj(max.) = 175 °C - deployed in automotive freewheeling and reverse battery protection.

For engineers reviewing the STTH2R02UY datasheet, STTH2R02UY pinout, STTH2R02UY application, or STTH2R02UY equivalent, key selection criteria include ultrafast recovery time under high dIF/dt conditions, junction temperature capability up to 175 °C, low forward voltage at 2 A average current, and SMB package thermal resistance (Rth(j-l) = 30 °C/W).

Technical Context

This diode employs Pt-doped planar junction technology to achieve negligible switching losses and low reverse recovery charge (QRR), enabling efficient operation in hard-switched SMPS and motor drive snubber networks. Its dynamic performance is characterized by trr = 15 ns (IF = 1 A, dIF/dt = −100 A/μs, VR = 30 V) and IRM = 3–4 A (IF = 2 A, dIF/dt = −200 A/μs, VR = 160 V, Tj = 125 °C).

The device supports automotive-grade reliability with PPAP capability and ECOPACK2 compliance. Thermal design is enabled by Rth(j-l) = 30 °C/W and a maximum junction temperature of 175 °C, validated across −40 °C to +175 °C operating range.

Key Specifications

Pinout & Package

SMB (DO-214AA) surface-mount package with gull-wing leads, UL94 V0 epoxy, lead-free finish, and footprint per Figure 13 (5.84 mm × 2.60 mm body, 1.62 mm lead width).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R02U, the STTH2R02UY adds AEC-Q101 validation and PPAP readiness at identical electrical specs; versus MUR220SFT1G, it delivers 43% faster trr and 0.23 V lower VF - directly reducing both switching and conduction losses in automotive 12 V/48 V systems.

Availability

STTH2R02UY is available at Aetrix Electronics and suitable for high-frequency inverters, freewheeling diode circuits, and reverse battery protection requiring stable component supply in automotive production programs.

Supply support for STTH2R02UY 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, MCU, and sensor solutions for automotive, industrial, and consumer markets.

The STTH ultrafast diode product line targets high-efficiency power conversion in automotive and industrial switching applications, emphasizing low trr, high Tj, and AEC-Q101 compliance for under-hood reliability.

FAQ

What is the maximum allowable surge current for STTH2R02UY?

The STTH2R02UY supports IFSM = 75 A for a 10 ms sinusoidal half-cycle surge, verified per IEC 61000-4-5 and ISO 7637-2 standards. This rating applies at Tj = 25 °C and assumes adequate PCB copper area to limit junction temperature rise during transient events.

Does STTH2R02UY require a heatsink in typical automotive applications?

No external heatsink is required when mounted on ≥2 cm² of 70 µm copper per lead (per Figure 11), as Rth(j-a) drops to ~4.5 °C/W. At IF(AV) = 2 A and VF = 0.85 V, power dissipation is ~1.7 W - resulting in ΔTj ≈ 7.7 °C above ambient, well within safe margin.

How does trr vary with temperature and dIF/dt?

trr decreases with rising junction temperature (Figure 10 shows ~20% reduction from 25 °C to 125 °C) and increases linearly with dIF/dt (Figure 8 shows trr = 15 ns at 100 A/μs, rising to ~25 ns at 500 A/μs). Designers must use worst-case trr at max dIF/dt and Tj for EMI and loss calculations.

Is STTH2R02UY compatible with lead-free reflow profiles?

Yes - the SMB package is lead-free and rated for JEDEC J-STD-020D-compliant reflow with peak temperature up to 260 °C (10 s max). The UL94 V0 epoxy ensures mechanical integrity and delamination resistance through multiple thermal cycles.