STMicroelectronics STPS60L30CKY-TR

Overview

STPS60L30CKY-TR from STMicroelectronics is an AEC-Q101-qualified dual-center-tab Schottky rectifier in PowerSO-20 (slug up) package, rated for 30 V reverse voltage and 2 × 30 A average forward current per diode at Tc = 130 °C. It delivers low conduction loss (VF(max) = 0.415 V @ 30 A, 125 °C) and negligible switching losses, targeting automotive low-voltage DC/DC conversion and alternator rectification.

For engineers reviewing the STPS60L30CKY-TR datasheet, STPS60L30CKY-TR pinout, STPS60L30CKY-TR application, or STPS60L30CKY-TR equivalent, key selection criteria include junction-to-case thermal resistance (0.95 °C/W per diode), dual-diode thermal coupling behavior, reflow compatibility (245 +0/−5 °C), and AEC-Q101 qualification for under-hood deployment.

Technical Context

This dual Schottky rectifier integrates two independent 30 V / 30 A diodes sharing a common cathode tab and thermally coupled case. Its PowerSO-20 slug-up construction enables direct heatsink mounting for high-power dissipation, with Rth(j-c) = 0.95 °C/W per diode and Rth(c) = 0.27 °C/W inter-diode coupling.

Designed for automotive 12 V systems, it operates across −40 to +150 °C junction temperature, supports surge currents up to 250 A (tp = 10 ms), and exhibits low IR (400 µA @ 125 °C, VR = 30 V), enabling efficient operation in engine control units and battery management interfaces.

Key Specifications

Pinout & Package

Package: PowerSO-20 (slug up) - thermally enhanced surface-mount package with exposed metal slug on underside for direct heatsink attachment; dimensions per Table 5 (Doc ID 18296 Rev 1), including E = 13.9–14.5 mm, D = 15.8–16.0 mm, and slug thickness ~1.1 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STPS60L30D-Y and VS-60CPQ030, STPS60L30CKY-TR uniquely combines slug-up thermal performance, dual-diode integration, and AEC-Q101 qualification-making it optimal for new automotive power designs where size, efficiency, and qualification compliance are jointly constrained.

Availability

STPS60L30CKY-TR is available at Aetrix Electronics and suitable for automotive alternator rectification, 12 V DC/DC converter output stages, and engine control unit (ECU) power input circuits requiring stable component supply and AEC-Q101 compliance.

Supply support for STPS60L30CKY-TR 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, MCU, power, and automotive-grade ICs for industrial, consumer, and automotive markets.

This device belongs to ST's Automotive Power Schottky Rectifier product line, engineered specifically for high-current, low-VF rectification in 12 V automotive systems with stringent thermal and reliability requirements.

FAQ

What is the maximum continuous forward current rating per diode?

The STPS60L30CKY-TR is rated for 30 A average forward current per diode at case temperature Tc = 130 °C with δ = 0.5 duty cycle. This assumes both anode pins (A1 and A2) are connected in parallel and the cathode slug is properly heatsinked to maintain Rth(j-c) ≤ 0.95 °C/W. At Tc = 100 °C, derating applies per Figure 2 in the datasheet.

Is the PowerSO-20 slug-up package compatible with standard reflow profiles?

Yes-the device is qualified for lead-free reflow soldering with a peak temperature of 245 +0/−5 °C, matching IPC/JEDEC J-STD-020D. The slug-up design requires adequate stencil aperture and solder paste volume beneath the thermal pad to ensure void-free solder joint formation and optimal thermal transfer to the PCB heatsink layer.

How does the dual-diode structure affect thermal management?

Each diode has its own Rth(j-c) = 0.95 °C/W, but they share thermal coupling via Rth(c) = 0.27 °C/W. When both diodes conduct simultaneously, junction temperature rise is calculated as ΔTj(diode1) = P₁×0.95 + P₂×0.27, making simultaneous full-load operation thermally more demanding than sequential use.

Does this part support reverse polarity protection in automotive systems?

No-it is a unidirectional Schottky rectifier intended for forward conduction only. For reverse polarity protection, it must be used in series with the power rail (anode toward source), and external TVS or crowbar circuitry is required to handle reverse transients beyond its 30 V VRRM rating, per automotive ISO 7637-2 requirements.