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STMicroelectronics STPS30170CG-TR
- Part No.:
- STPS30170CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS30170CG-TR.pdf
- Description:
- DIODE ARRAY SCHOT 170V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,976
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Product details
Overview
STPS30170CG-TR from STMicroelectronics is a dual center-tap high-voltage Schottky rectifier in D²PAK (TO-263) package, rated for 170 V reverse voltage and 2 × 15 A average forward current per diode at TC = 150 °C, with typical forward voltage drop of 0.69 V at 125 °C and 15 A - optimized for high-frequency switch-mode power supplies in industrial AC/DC adapters and server PSUs.
For engineers reviewing the STPS30170CG-TR datasheet, STPS30170CG-TR pinout, STPS30170CG-TR application, or STPS30170CG-TR equivalent, key selection criteria include junction-to-case thermal resistance (1.6 °C/W per diode), avalanche capability (750 W, tp = 10 µs), low leakage (≤20 µA at 25 °C), ECOPACK®2 compliance, and dual-diode center-tap configuration for synchronous rectification topologies.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), enabling use in full-wave rectification without external center-tapped transformers. Its low VF and high Tj (175 °C max) support high-efficiency, high-power-density designs where thermal management is constrained.
Each diode exhibits specified avalanche energy handling (PARM = 750 W, tp = 10 µs at Tj = 125 °C) and low thermal resistance (Rth(j-c) = 1.6 °C/W per diode in D²PAK), allowing robust operation under transient overvoltage and high RMS current conditions typical in LLC resonant converters and active clamp flyback circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 170 V - supports input rectification up to 120 VAC mains with margin, suitable for universal-input SMPS. |
| IF(AV) per diode | 15 A at TC = 150 °C - enables 30 A total device output in parallel-path configurations with shared heatsinking. |
| VF (typ) | 0.69 V at Tj = 125 °C, IF = 15 A - reduces conduction loss to ~10.4 W per diode at full load, improving efficiency vs. Si PN diodes. |
| IR (max) | 20 µA at Tj = 25 °C, VR = VRRM - ensures minimal standby power loss in offline adapters and standby rails. |
| Tj (max) | +175 °C - allows operation in high-ambient environments (e.g., enclosed server PSUs) without derating below 150 °C case temperature. |
| Rth(j-c) per diode | 1.6 °C/W - enables direct mounting to PCB copper pour or heatsink for thermal dissipation up to 18.75 W per diode before exceeding Tj limit. |
| PARM | 750 W at tp = 10 µs, Tj = 125 °C - provides validated surge immunity against inductive switching transients in high-frequency converters. |
Pinout & Package
STPS30170CG-TR uses the D²PAK (TO-263) surface-mount package with three terminals: two anodes (A1, A2) and one common cathode (K). The exposed metal tab is electrically connected to the cathode and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode path; connects to transformer secondary winding or switching node in center-tap topology. |
| A2 | Anode 2 | Input terminal for second diode path; enables full-wave rectification with shared cathode output. |
| K | Common Cathode | Output node for both diodes; electrically tied to exposed metal tab for low-inductance, high-current return and thermal conduction. |
Key Features
| Feature | Design Value |
|---|---|
| High junction temperature rating | 175 °C maximum - extends reliability in thermally constrained enclosures and eliminates need for oversized heatsinks. |
| Low VF / IR trade-off | 0.69 V @ 15 A / 20 µA @ 25 °C - balances conduction loss reduction with minimal reverse leakage in high-efficiency designs. |
| Avalanche capability | 750 W peak power, 10 µs pulse - protects against voltage spikes during MOSFET turn-off in hard-switched topologies. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy - meets industrial and telecom environmental standards without compromising thermal performance. |
| Dual center-tap configuration | Two independent anodes + single cathode - simplifies PCB layout for full-wave rectification and reduces component count vs. discrete dual-diode solutions. |
Applications
| Server Power Supply | Industrial AC/DC Adapter |
|---|---|
|
Use Scenario: High-efficiency 80 PLUS Titanium PSU delivering 1–3 kW with LLC resonant topology and synchronous rectification. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing full-wave output rectification on secondary side, replacing conventional Si diodes to reduce losses. Use Value: Enables >96% efficiency at full load by cutting conduction loss by ~40% versus 150 V Si diodes, while maintaining thermal stability at 150 °C case temperature. |
Use Scenario: DIN-rail mounted 48 V/20 A industrial power supply operating continuously in ambient temperatures up to 70 °C. IC Role / Device Role / Timing Role: Output rectifier in forward converter secondary stage, handling continuous 30 A DC output with minimal voltage drop. Use Value: Delivers stable 48 V output with <0.75 V total drop across both diodes, reducing heat sink size by 35% compared to standard Schottky alternatives. |
| Telecom Rectifier Module | Medical Imaging Power System |
|
Use Scenario: -48 V DC distribution system rectifier module requiring high reliability and low EMI in telecom central offices. IC Role / Device Role / Timing Role: Center-tap rectifier in isolated DC/DC stage converting 380 V bus to -48 V, operating at 200 kHz switching frequency. Use Value: Low junction capacitance (<100 pF at 0 V) minimizes switching noise; avalanche rating ensures survivability during hot-swap events and line surges. |
Use Scenario: X-ray generator high-voltage DC supply with strict safety and lifetime requirements (10+ years MTBF). IC Role / Device Role / Timing Role: Secondary-side rectifier in high-isolation flyback converter powering detector bias circuitry. Use Value: 175 °C Tj rating and low IR ensure long-term parametric stability under constant thermal stress, meeting IEC 60601-1 creepage and lifetime validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS30H100CG-TR | 100 V VRRM, same D²PAK package and 2×15 A rating; lower VF (0.65 V typ) but reduced voltage margin. | Suitable only for ≤70 VAC input systems; not viable for universal-input or 170 V surge-rated designs. | Select when input voltage is limited to 100 VAC and lowest conduction loss is prioritized over surge robustness. |
| MBR30150CTG | 150 V VRRM, TO-220AB package, 2×15 A; higher VF (0.85 V typ) and Rth(j-c) = 2.5 °C/W - less efficient and harder to cool. | Requires larger heatsink; unsuitable for high-density layouts due to through-hole mounting and thermal limitations. | Choose only if D²PAK reflow compatibility is unavailable and legacy TO-220 footprint must be retained. |
Compared with STPS30170CG-TR, STPS30H100CG-TR trades voltage headroom for slightly better efficiency, while MBR30150CTG sacrifices thermal performance and surface-mount compatibility for broader distributor availability - making STPS30170CG-TR optimal for new high-density, high-reliability 170 V-class SMPS designs.
Availability
STPS30170CG-TR is available at Aetrix Electronics and suitable for server power supplies, industrial AC/DC adapters, and telecom rectifier modules requiring stable component supply, high thermal resilience, and RoHS-compliant packaging.
Supply support for STPS30170CG-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.
STPS30170CG-TR belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in high-frequency switch-mode power supplies targeting datacenter, industrial, and telecom infrastructure.
FAQ
What is the thermal resistance from junction to case for each diode in STPS30170CG-TR?
The junction-to-case thermal resistance is 1.6 °C/W per diode, measured from each die to the common cathode tab. This value assumes proper soldering of the exposed metal pad to ≥10 cm² of 2 oz copper on FR4 PCB, and is critical for calculating maximum allowable power dissipation before reaching the 175 °C junction limit.
Can STPS30170CG-TR be used in place of a single 30 A Schottky diode?
No - STPS30170CG-TR contains two independent 15 A diodes with separate anodes and a shared cathode, forming a center-tap configuration. It cannot replace a single-anode/single-cathode 30 A device. It is intended for full-wave rectification where two input phases feed into one output rail via the common cathode.
Is the exposed metal tab electrically isolated from the anodes and cathode?
No - the exposed metal tab is internally connected to the common cathode (K) terminal and is not insulated. It must be mounted on a PCB copper area or heatsink that is referenced to the cathode potential. Any isolation requires external insulating hardware and increases thermal resistance significantly.
Does STPS30170CG-TR require a snubber circuit in typical SMPS applications?
Snubbers are generally not required due to its low junction capacitance (<100 pF at 0 V) and inherent avalanche ruggedness. However, in hard-switched topologies with fast dv/dt (>50 V/ns) and poor layout, a small RC snubber across each anode-to-cathode may suppress ringing - verified via oscilloscope measurement of switching node waveforms.
STPS30170CG-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):
- 170 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 µA @ 170 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS30170CG-TR FAQ
1.How can I place an order for STPS30170CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS30170CG-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 STPS30170CG-TR reliable?
The price and inventory of STPS30170CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30170CG-TR is usually 5 days.
3.What payment methods are accepted for STPS30170CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30170CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS30170CG-TR?
STPS30170CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS30170CG-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 STPS30170CG-TR?
For technical support, including STPS30170CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30170CG-TR requirements.
6.How does Aetrix verify that STPS30170CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS30170CG-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 STPS30170CG-TR meets industry standards.
7.What is the process for return or replacement of STPS30170CG-TR?
All STPS30170CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS30170CG-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 STPS30170CG-TR part is unused and in its original packaging.
Return procedure for STPS30170CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS30170CG-TR Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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