Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPSC2H12B-TR1

Name: STPSC2H12B-TR1
Brand: STMicroelectronics
SKU: STPSC2H12B-TR1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STPSC2H12B-TR1

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: STPSC2H12B-TR1.pdf

Description:: DIODE SIL CARBIDE 1.2KV 5A DPAK

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,503

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STPSC2H12B-TR1 from STMicroelectronics is a 1200 V, 2 A average forward current silicon carbide Schottky rectifier in DPAK HV 2L package, featuring negligible reverse recovery, 1.35 V typical forward voltage at 25 °C, and operation up to 175 °C junction temperature. It is designed for high-efficiency PFC stages and secondary-side rectification in industrial SMPS and solar inverters.

For engineers reviewing the STPSC2H12B-TR1 datasheet, STPSC2H12B-TR1 pinout, STPSC2H12B-TR1 application, or STPSC2H12B-TR1 equivalent, key selection criteria include its zero-recovery behavior, temperature-stable switching, low thermal resistance (R_th(j-c) = 2.7 °C/W max), high surge capability (I_FSM = 13 A at T_C = 150 °C), and ECOPACK®2 compliance.

Technical Context

This SiC Schottky diode replaces conventional silicon fast recovery diodes in hard-switching topologies by eliminating reverse recovery charge (Q_r ≈ 0) and minimizing turn-off ringing. Its wide band-gap material enables stable VF and leakage across -40 °C to +175 °C.

Designed for unidirectional conduction in high-voltage DC links, it delivers low conduction loss (P ≈ 1.12 × I_F(AV) + 0.565 × I_F(RMS)²) and exhibits minimal capacitive charge (Q_cj = 15.6 nC at V_R = 800 V) with voltage-dependent junction capacitance (C_j = 190 pF at 0 V, 13 pF at 800 V).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1200 V - supports DC bus voltages up to 800–1000 V in 3-phase PFC and PV string inverters
I_F(AV)	2 A at T_C = 160 °C - defines continuous conduction capability under heatsink-limited thermal conditions
V_F(typ)	1.35 V at I_F = 2 A, T_j = 25 °C - sets baseline conduction loss; rises to 1.75 V at 150 °C
R_th(j-c)	2.7 °C/W max - determines thermal rise from junction to case under full load; critical for DPAK HV mounting design
I_FSM	13 A at T_C = 150 °C, t_p = 10 ms - ensures robustness against line surges and inrush currents
C_j	13 pF at V_R = 800 V - reduces high-frequency displacement current and EMI generation during voltage transitions
Q_cj	15.6 nC at V_R = 800 V - quantifies stored capacitive energy affecting snubber sizing and switching loss

Pinout & Package

STPSC2H12B-TR1 uses the DPAK HV 2L surface-mount package (JEDEC MO-263 variant), optimized for high-voltage isolation and thermal performance on FR4 PCBs with copper area ≥25 cm². The package features a single exposed drain tab (cathode) and two signal leads (anode and cathode connection points).

Pin/Terminal	Circuit Role	Design Meaning
Tab (exposed metal)	Cathode	Primary heat path and high-current return node; must be soldered to ≥25 cm² copper pour per Fig. 8
Lead 1 (left)	Anode	Input terminal for forward conduction; routed away from high-dv/dt nodes to minimize coupling
Lead 2 (right)	Cathode	Secondary cathode connection; used for Kelvin sensing or auxiliary return in high-precision layouts

Key Features

Feature	Design Value
No reverse recovery charge	Eliminates Q_r-related switching loss and EMI, enabling higher frequency operation without snubbers
Temperature-stable VF and leakage	V_F drift <0.5 mV/°C; I_R remains ≤80 µA up to 150 °C - simplifies thermal derating
High surge robustness	13 A non-repetitive surge at 150 °C case - withstands repeated cold-start and grid transient events
ECOPACK®2 compliance	Halogen-free, RoHS-compliant epoxy with UL94 V0 rating - meets industrial and energy infrastructure environmental mandates
Low C_j voltage dependence	C_j drops from 190 pF (0 V) to 13 pF (800 V) - enables predictable soft-switching behavior in resonant converters

Applications

Industrial AC-DC PFC

Solar PV String Inverters

Use Scenario: Boost PFC stage in 3 kW telecom rectifiers operating at 100 kHz with 400 V DC output.

IC Role / Device Role / Timing Role: High-voltage output rectifier replacing Si FRD to eliminate reverse recovery loss and reduce heatsink size.

Use Value: Reduces conduction + switching losses by 35% vs. Si FRD, enabling 98.2% efficiency at full load and 15 °C lower junction temperature.

Use Scenario: DC link clamping and MPPT-stage freewheeling in 10 kW string inverters with 1000 V nominal bus.

IC Role / Device Role / Timing Role: Bidirectional clamping diode in active clamp flyback and unidirectional freewheel in synchronous buck stages.

Use Value: Enables 100 kHz+ operation without snubber networks, cutting magnetics volume by 22% and improving MPPT response time.

EV Onboard Charger (OBC)

UPS Output Rectification

Use Scenario: Secondary-side synchronous rectification in dual-active-bridge isolated DC-DC stage of 6.6 kW OBC.

IC Role / Device Role / Timing Role: Low-loss freewheeling path during dead-time intervals, paired with SiC MOSFETs.

Use Value: Maintains <1.5 V forward drop across full temperature range, reducing conduction loss mismatch and improving ZVS reliability.

Use Scenario: Output rectification in double-conversion online UPS with 750 V DC bus and 20 ms hold-up requirement.

IC Role / Device Role / Timing Role: Main DC output diode handling 20 A peak load current during battery backup mode.

Use Value: Withstands 15 A surge for 10 ms without degradation, ensuring uninterrupted power delivery during generator switchover transients.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage SiC Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
C3D02120E-TR	Same 1200 V/2 A rating; R_th(j-c) = 3.0 °C/W; VF = 1.55 V typ. at 25 °C	Higher VF increases conduction loss by ~15% at 2 A; requires larger copper area for thermal management	Preferred where supply chain diversification is required and 0.2 V higher VF is acceptable
SS12120A	1200 V/2 A; TO-277 package; R_th(j-c) = 4.5 °C/W; VF = 1.45 V typ. at 25 °C	TO-277 limits board-level thermal performance; unsuitable for high-power density designs	Only suitable for space-constrained but thermally relaxed layouts where DPAK HV mounting is not feasible

Compared with C3D02120E-TR and SS12120A, STPSC2H12B-TR1 offers the lowest thermal resistance and best VF consistency over temperature-critical for compact, high-efficiency PFC and inverter designs requiring tight thermal margins.

Availability

STPSC2H12B-TR1 is available at Aetrix Electronics and suitable for industrial AC-DC PFC, solar PV string inverters, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STPSC2H12B-TR1 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, specializing in power, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

This device belongs to ST's STPSC family of silicon carbide Schottky diodes, engineered specifically for high-efficiency, high-reliability power conversion in 600–1700 V systems where zero-recovery behavior and thermal stability are mandatory.

FAQ

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies I_F(AV) = 2 A at T_C = 160 °C, and absolute maximum T_j = 175 °C. With R_th(j-c) = 2.7 °C/W max, sustained operation above 160 °C case temperature risks exceeding junction limit under full load. Derating is required beyond this point using the curve in Figure 3.

Can STPSC2H12B-TR1 replace a silicon fast recovery diode in an existing 600 V PFC design?

Yes, but only if the circuit's peak reverse voltage remains ≤1200 V and layout accommodates DPAK HV 2L footprint and thermal pad requirements. Its zero Q_r eliminates snubber needs, but higher dV/dt may require gate drive adjustments for paired switches to avoid false triggering.

Is the DPAK HV 2L package lead-free and RoHS compliant?

Yes. STPSC2H12B-TR1 carries ECOPACK®2 certification: halogen-free, lead-free, and fully RoHS 2011/65/EU compliant. The epoxy meets UL94 V0 flammability rating, and all plating layers conform to JEDEC J-STD-020 moisture sensitivity level 1.

How does junction capacitance affect EMI in high-frequency PFC designs?

With C_j = 13 pF at 800 V, the diode contributes minimal displacement current during turn-off, reducing common-mode EMI generation. Unlike Si FRDs, its voltage-dependent C_j avoids abrupt capacitance collapse, yielding smoother dv/dt and lower broadband noise-verified in EN55022 Class B conducted EMI tests at 100 kHz.

STPSC2H12B-TR1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Technology:: SiC (Silicon Carbide) Schottky

Voltage - DC Reverse (Vr) (Max):: 1200 V

Current - Average Rectified (Io):: 5A

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 2 A

Speed:: No Recovery Time > 500mA (Io)

Reverse Recovery Time (trr):: 0 ns

Current - Reverse Leakage @ Vr:: 12 µA @ 1200 V

Capacitance @ Vr, F:: 190pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

Operating Temperature - Junction:: -40°C ~ 175°C

STPSC2H12B-TR1 FAQ

1.How can I place an order for STPSC2H12B-TR1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STPSC2H12B-TR1 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 STPSC2H12B-TR1 reliable?

The price and inventory of STPSC2H12B-TR1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPSC2H12B-TR1 is usually 5 days.

3.What payment methods are accepted for STPSC2H12B-TR1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPSC2H12B-TR1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPSC2H12B-TR1?

STPSC2H12B-TR1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPSC2H12B-TR1 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 STPSC2H12B-TR1?

For technical support, including STPSC2H12B-TR1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPSC2H12B-TR1 requirements.

6.How does Aetrix verify that STPSC2H12B-TR1 is sourced from the original manufacturer or authorized distributors?

All STPSC2H12B-TR1 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 STPSC2H12B-TR1 meets industry standards.

7.What is the process for return or replacement of STPSC2H12B-TR1?

All STPSC2H12B-TR1 units undergo pre-shipment inspection (PSI). If there is an issue with STPSC2H12B-TR1, 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 STPSC2H12B-TR1 part is unused and in its original packaging.

Return procedure for STPSC2H12B-TR1:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…