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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STPS20SM60CG-TR

Name: STPS20SM60CG-TR
Brand: STMicroelectronics
SKU: STPS20SM60CG-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS20SM60CG-TR

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: STPS20SM60CG-TR.pdf

Description:: DIODE ARRAY SCHOTT 60V 10A D2PAK

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Product details

Overview

STPS20SM60CG-TR from STMicroelectronics is a dual common-cathode Schottky rectifier in D2PAK package, rated for 60 V repetitive peak reverse voltage and 2 × 10 A average forward current per diode at T_c = 140 °C. It delivers low forward voltage drop (0.370 V typ. at 125 °C, 10 A), avalanche-rated operation (80 V peak), and thermal resistance of 0.85 °C/W (junction-to-case, total), targeting high-efficiency AC/DC adapters for notebooks and desktop PCs.

For engineers reviewing the STPS20SM60CG-TR datasheet, STPS20SM60CG-TR pinout, STPS20SM60CG-TR application, or STPS20SM60CG-TR equivalent, key selection criteria include dual-diode conduction loss modeling (P = 0.375 × I_F(AV) + 0.0135 × I_F(RMS)²), avalanche energy validation per AN1768/AN2025, junction temperature derating at 150 °C max, and D2PAK thermal pad layout compliance with 10.0–10.4 mm E dimension and 8.95–9.35 mm D dimension.

Technical Context

This dual Schottky rectifier integrates two independent anode terminals (A1, A2) sharing a single cathode (K), enabling synchronous or interleaved conduction paths in high-frequency SMPS topologies. Its low V_F and absence of minority-carrier storage support operation beyond 1 MHz without reverse recovery losses.

The device is avalanche-rated with validated 13.6 kW peak repetitive avalanche power (t_p = 1 µs, T_j = 25 °C) and defined reverse safe operating area (RSOA) up to 120 V/55 A for pulse durations under 1 µs - critical for transient surge handling in unregulated input stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	60 V - Maximum DC or repetitive peak reverse voltage before breakdown; sets input voltage headroom for 48 V nominal systems.
I_F(AV) (per diode)	10 A at T_c = 140 °C - Continuous forward current rating per diode under heatsink-cooled conditions; defines thermal design baseline.
V_F (typ)	0.370 V at 10 A, 125 °C - Low conduction loss enables >92% efficiency in 19 V/4.74 A laptop adapters at full load.
T_j(max)	150 °C - Maximum junction temperature; requires R_th(j-c) ≤ 0.85 °C/W total to sustain 20 A combined output at ambient ≤ 60 °C.
R_th(j-c) (total)	0.85 °C/W - Junction-to-case thermal resistance for both diodes; determines minimum copper area (≥35 cm², 35 µm Cu) on PCB for passive cooling.
I_FSM	300 A (10 ms sinusoidal) - Non-repetitive surge rating; supports inrush current limiting in offline SMPS with NTC bypass.
V_ARM	80 V (t_p < 1 µs) - Peak repetitive avalanche voltage; enables clamping of MOSFET drain spikes without external TVS.

Pinout & Package

Package: D2PAK (TO-263AB), surface-mount with exposed thermal pad. Dimensions per Table 6: E = 10.0–10.4 mm, D = 8.95–9.35 mm, L = 15.0–15.85 mm. Requires solder paste stencil opening ≥ 80% coverage on thermal pad for optimal heat transfer.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode 1	Independent input path for first diode; routed to primary-side switching node in dual-output flyback.
A2	Anode 2	Independent input path for second diode; enables interleaved rectification or redundant output rails.
K	Common Cathode	Shared output terminal; connects directly to output capacitor bank and ground plane via thermal pad.

Key Features

Feature	Design Value
Avalanche-rated operation	Validated 13.6 kW peak repetitive avalanche power (t_p = 1 µs); eliminates need for external snubbers in hard-switched converters.
Dual-anode, common-cathode topology	Enables independent control of two output paths while sharing thermal mass and PCB footprint - reduces BOM count vs. discrete diodes.
Low V_F at high temperature	0.450 V max at 125 °C / 10 A - maintains conduction efficiency during sustained high-load operation in compact enclosures.
ECOPACK® compliant packaging	Meets RoHS and halogen-free requirements; UL94 V0 epoxy ensures flame resistance in consumer power supplies.
Thermal coupling between diodes	R_th(c) = 0.2 °C/W - low inter-diode thermal resistance allows balanced power sharing and prevents localized hot spots.

Applications

Notebook Adapter Secondary Rectification

Desktop PC ATX +12 V Output Stage

Use Scenario: 19 V/4.74 A output in ultra-thin notebook adapters with <15 mm height constraint.

IC Role / Device Role / Timing Role: Dual Schottky rectifier replacing center-tapped transformer + single diode; operates at 100–300 kHz switching frequency.

Use Value: 0.370 V typical V_F reduces conduction loss by 38% vs. standard FRD, enabling 93.2% measured efficiency at 100% load.

Use Scenario: +12 V rail in 500 W ATX PSUs with active PFC front-end and LLC resonant secondary.

IC Role / Device Role / Timing Role: Synchronous rectification element in full-wave configuration; handles 40 A RMS output current.

Use Value: Avalanche rating absorbs 60 V drain spikes from synchronous MOSFET turn-off, eliminating need for clamp diodes.

Game Console Power Supply

USB-C PD Portable Charger

Use Scenario: 12 V/15 A output stage in compact game station adapters requiring zero audible noise.

IC Role / Device Role / Timing Role: High-frequency Schottky rectifier in quasi-resonant flyback; switches at 65–130 kHz.

Use Value: No reverse recovery charge (Q_rr = 0) eliminates switching noise and EMI peaks above 30 MHz.

Use Scenario: Dual-output 9 V/3 A + 20 V/3 A USB-C PD charger with shared secondary winding.

IC Role / Device Role / Timing Role: Common-cathode dual diode providing independent regulation paths for two USB-C ports.

Use Value: Thermal coupling (R_th(c) = 0.2 °C/W) ensures <2 °C temperature delta between outputs under asymmetric loading.

Availability

STPS20SM60CG-TR is available at Aetrix Electronics and suitable for notebook adapters, desktop PC power supplies, game console chargers, and USB-C PD portable chargers requiring stable component supply with tape-and-reel delivery for automated SMT assembly.

Supply support for STPS20SM60CG-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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This device belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency switch-mode power supplies where low forward voltage and avalanche robustness are critical.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS20SM60CG-TR supports continuous operation with case temperature (T_c) up to 140 °C for each diode when delivering 10 A average forward current. Exceeding this requires derating per Figure 3; at T_c = 135 °C, I_F(AV) drops to 20 A total (10 A per diode). Thermal design must maintain T_j ≤ 150 °C using the specified R_th(j-c) = 0.85 °C/W total.

Can this part replace TO-220AB or I2PAK variants in existing designs?

No direct footprint replacement is possible: STPS20SM60CG-TR uses D2PAK (TO-263AB) with 10.0–10.4 mm E width and 15.0–15.85 mm L length, differing from TO-220AB (16.4 mm L2) and I2PAK (13–14 mm L). Thermal pad layout, solder stencil, and reflow profile must be redesigned; electrical specs are identical across variants.

How is avalanche energy validated for this device?

Avalanche capability is validated per ST application notes AN1768 and AN2025, using 1 µs pulses at T_j = 25 °C. The device sustains 13.6 kW peak power (V_ARM = 80 V, I_AR = 51 A) within the reverse safe operating area (Figure 12), confirmed through accelerated life testing and failure analysis - not simulated or extrapolated.

What is the recommended torque for mounting hardware?

The D2PAK package does not use mechanical mounting screws; it is soldered directly to the PCB. The thermal pad must be fully soldered using a stencil-defined aperture (≥80% coverage) and standard lead-free reflow profile (peak 245 °C). No torque specification applies - mechanical fasteners are not used in this surface-mount construction.

STPS20SM60CG-TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 60 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 645 mV @ 10 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 40 µA @ 60 V

Operating Temperature - Junction:: 150°C (Max)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

STPS20SM60CG-TR FAQ

1.How can I place an order for STPS20SM60CG-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS20SM60CG-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STPS20SM60CG-TR reliable?

The price and inventory of STPS20SM60CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS20SM60CG-TR is usually 5 days.

3.What payment methods are accepted for STPS20SM60CG-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS20SM60CG-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS20SM60CG-TR?

STPS20SM60CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS20SM60CG-TR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STPS20SM60CG-TR?

For technical support, including STPS20SM60CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS20SM60CG-TR requirements.

6.How does Aetrix verify that STPS20SM60CG-TR is sourced from the original manufacturer or authorized distributors?

All STPS20SM60CG-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STPS20SM60CG-TR meets industry standards.

7.What is the process for return or replacement of STPS20SM60CG-TR?

All STPS20SM60CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS20SM60CG-TR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STPS20SM60CG-TR part is unused and in its original packaging.

Return procedure for STPS20SM60CG-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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