My Inquiry
My Account
STMicroelectronics STPS40150CG-TR
- Part No.:
- STPS40150CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS40150CG-TR.pdf
- Description:
- DIODE ARRAY SCHOT 150V 20A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,319
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STPS40150CG-TR from STMicroelectronics is a dual-center-tab 150 V, 2 × 20 A average forward current Schottky rectifier in D²PAK package, optimized for high-frequency SMPS and DC/DC converters with low thermal resistance (0.85 °C/W total) and typ. 0.69 V forward voltage at 125 °C. It supports telecom power systems requiring high junction temperature operation up to +175 °C and low leakage current (2 µA @ 25 °C, 11 mA @ 125 °C).
For engineers reviewing the STPS40150CG-TR datasheet, STPS40150CG-TR pinout, STPS40150CG-TR application, or STPS40150CG-TR equivalent, key selection criteria include dual-diode thermal coupling behavior, junction-to-case thermal resistance per diode (1.20 °C/W), avalanche power rating (1015 W), conduction loss equation (P = 0.64 × IF(AV) + 0.0055 × IF²(RMS)), and ECOPACK®2 compliance.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode paths sharing a common center tab for mechanical mounting and thermal conduction. Each diode exhibits low VF (0.69 V typ. @ 125 °C, 20 A) and low IR (2 µA @ 25 °C, VR = VRRM − 2 V), enabling high-efficiency operation in continuous conduction mode converters.
Thermal design relies on validated junction-to-case resistance (1.20 °C/W per diode) and coupling resistance (0.50 °C/W), allowing accurate ΔTj calculation when both diodes conduct simultaneously. The device operates reliably under repetitive avalanche conditions (tp = 10 µs, Tj = 125 °C, PARM = 1015 W) and supports high-frequency switching due to low junction capacitance (typ. ~500 pF @ 30 V, 1 MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum reverse blocking voltage per diode; defines safe operating range in flyback/freewheeling topologies. |
| IF(AV) | 2 × 20 A - Average forward current per diode at TC = 150 °C; enables 40 A total device output in balanced dual-channel designs. |
| VF(typ.) | 0.69 V @ 125 °C, 20 A - Low conduction loss critical for efficiency in telecom and server PSUs above 90% target. |
| Rth(j-c) | 1.20 °C/W per diode - Enables direct heatsink mounting via center tab; total thermal resistance drops to 0.85 °C/W when both diodes share thermal path. |
| IR(max) | 11 mA @ 125 °C, VR = VRRM - Low leakage preserves standby efficiency and reduces thermal runaway risk in high-temperature environments. |
| Tj(max) | +175 °C - Extended junction temperature rating allows operation in compact, sealed enclosures without forced air cooling. |
| ECOPACK®2 | Compliant - Meets RoHS and halogen-free requirements for industrial and telecom equipment with full traceability. |
Pinout & Package
D²PAK (TO-263) package with three terminals: two anodes (A1, A2) and one shared cathode (K) connected to the center metal tab. The tab serves as both electrical cathode return and primary thermal interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input node for first rectification path; isolated from A2 to support dual-output or interleaved converter topologies. |
| A2 | Anode of Diode 2 | Independent input node enabling synchronous or asymmetrical dual-channel rectification without cross-conduction risk. |
| K (Tab) | Common Cathode & Thermal Plane | Electrically ties both diodes' cathodes; must be soldered to PCB copper pour or heatsink for thermal management and low-inductance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF / IR trade-off | 0.69 V @ 125 °C, 20 A and 2 µA @ 25 °C - Balances conduction loss and leakage-driven standby loss better than standard Schottkys. |
| High-frequency capability | Junction capacitance < 600 pF @ 30 V - Minimizes switching loss and EMI in >300 kHz SMPS designs. |
| Dual-diode thermal coupling | Rth(c) = 0.50 °C/W - Enables precise thermal modeling when both diodes operate concurrently, avoiding overdesign. |
| Robust avalanche rating | 1015 W peak avalanche power (tp = 10 µs) - Withstands transient overvoltage events in unclamped inductive switching circuits. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy - Meets IPC-1752A material declaration requirements for global telecom OEMs. |
Applications
| Telecom AC-DC Front-End | Server PSU Secondary Rectification |
|---|---|
|
Use Scenario: High-density 48 V input rectification stage in telecom rectifiers delivering 1–3 kW with >94% efficiency. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing low-loss freewheeling and synchronous rectification in LLC resonant converters. Use Value: 0.69 V VF at 125 °C reduces conduction loss by ~18% vs. legacy 0.85 V Schottkys, directly improving full-load efficiency. |
Use Scenario: 12 V/54 A secondary-side rectification in redundant 1+1 server PSUs with tight thermal envelopes. IC Role / Device Role / Timing Role: Dual-path output rectifier enabling parallel current sharing between two transformer secondaries. Use Value: Shared cathode tab simplifies PCB layout and thermal management, reducing footprint by 35% vs. discrete dual-D²PAK solution. |
| Industrial DC/DC Isolated Converters | 5G Remote Radio Unit Power |
|
Use Scenario: 24–48 V input, 3.3–5 V output isolated DC/DC modules for PLC I/O modules operating at −40 to +85 °C ambient. IC Role / Device Role / Timing Role: Output rectifier in forward or active-clamp forward topologies handling 20 A per channel. Use Value: 175 °C Tj(max) ensures reliability under sustained overload and high ambient conditions without derating. |
Use Scenario: Compact 28 V input, 5 V/10 A auxiliary supply in outdoor 5G RRUs with limited airflow and wide temperature cycling. IC Role / Device Role / Timing Role: Dual-anode rectifier supporting split-input redundancy or dual-rail generation from single transformer winding. Use Value: Low Rth(j-c) (0.85 °C/W total) enables passive cooling in sealed aluminum housings, eliminating fan dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-40CPH015 | Same VRRM (150 V), higher IF(AV) (2 × 25 A), but VF = 0.82 V @ 125 °C and Rth(j-c) = 1.5 °C/W per diode. | Better current headroom but 19% higher conduction loss; requires larger heatsink area for same thermal rise. | Select when peak current margin >20% is required and efficiency is secondary to ruggedness. |
| ON Semiconductor MBR40150CT | Identical TO-220AB package variant of same die; VF = 0.75 V @ 125 °C, Rth(j-c) = 2.0 °C/W per diode, no D²PAK option. | Limited to lower-power applications (<15 A/channel) due to higher thermal resistance; not suitable for surface-mount high-density designs. | Select only for through-hole prototyping or legacy board rework where D²PAK footprint is unavailable. |
Compared with VS-40CPH015 and MBR40150CT, STPS40150CG-TR delivers superior thermal performance (0.85 °C/W total) and lowest VF in its class, making it optimal for space-constrained, high-efficiency telecom and server power supplies where thermal density and full-load efficiency are prioritized.
Availability
STPS40150CG-TR is available at Aetrix Electronics and suitable for telecom AC-DC front-ends, server PSU secondary rectification, and industrial DC/DC isolated converters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for STPS40150CG-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 automotive, industrial, and consumer markets.
The STPS40150C series belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in telecom infrastructure and datacenter power supplies.
FAQ
What is the maximum surge current rating for STPS40150CG-TR?
The device supports a non-repetitive forward surge current (IFSM) of 250 A for 10 ms sinusoidal waveform per diode, as specified in Table 1 of DS3262. This rating applies individually to each diode path and assumes TC ≤ 150 °C during surge event. Derating is required for repeated surges or elevated case temperatures.
Can STPS40150CG-TR be used in parallel with another identical device?
No-parallel operation is not recommended. The device's dual-diode structure shares a common cathode tab, and paralleling two units introduces uncontrolled current imbalance due to VF mismatch and unequal thermal coupling. For higher current, use a single higher-rated part or redesign with interleaved topology using separate anode routing.
Is the center tab electrically isolated from the PCB copper pour?
No-the K (cathode) tab is electrically connected to both diode cathodes and must be soldered to a grounded or common-cathode net on the PCB. It is not insulated; isolation requires external insulating hardware (e.g., mica washer + shoulder washer) if mounting to a heatsink at different potential.
Does STPS40150CG-TR require a minimum gate drive or control signal?
No-it is a passive Schottky rectifier with no gate or control terminal. It conducts when anode voltage exceeds cathode voltage by >VF and blocks when reverse biased. No driver circuitry, timing signals, or bias networks are needed; operation is fully autonomous and determined by external circuit voltage polarity and magnitude.
STPS40150CG-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:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 8 µA @ 150 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS40150CG-TR FAQ
1.How can I place an order for STPS40150CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS40150CG-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 STPS40150CG-TR reliable?
The price and inventory of STPS40150CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS40150CG-TR is usually 5 days.
3.What payment methods are accepted for STPS40150CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS40150CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS40150CG-TR?
STPS40150CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS40150CG-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 STPS40150CG-TR?
For technical support, including STPS40150CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS40150CG-TR requirements.
6.How does Aetrix verify that STPS40150CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS40150CG-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 STPS40150CG-TR meets industry standards.
7.What is the process for return or replacement of STPS40150CG-TR?
All STPS40150CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS40150CG-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 STPS40150CG-TR part is unused and in its original packaging.
Return procedure for STPS40150CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS40150CG-TR Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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.
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…
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…
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…
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 …
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…
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…
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…
