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STMicroelectronics STPS16170CR
- Part No.:
- STPS16170CR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
STPS16170CR.pdf
- Description:
- DIODE ARRAY SCHOTT 170V 8A I2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
STPS16170CR from STMicroelectronics is a dual-center-tab high-voltage Schottky rectifier in I²PAK package, rated for 170 V repetitive peak reverse voltage and 2 × 8 A average forward current per diode at Tc = 150 °C. It features low forward voltage drop (0.70 V typ. at 8 A, 125 °C), 175 °C maximum junction temperature, avalanche capability (335 W, 10 µs), and ECOPACK®2 compliance. It is designed for high-frequency switched-mode power supplies requiring efficient conduction and robust thermal performance.
For engineers reviewing the STPS16170CR datasheet, STPS16170CR pinout, STPS16170CR application, or STPS16170CR equivalent, key selection criteria include dual-diode thermal coupling behavior, junction-to-case thermal resistance (3 °C/W per diode), leakage current limits (15 mA max at 125 °C), and avalanche energy validation per AN1768/AN2025.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common center tab for mechanical and thermal coupling. Each diode operates with specified avalanche ruggedness (335 W, 10 µs pulse) and thermal derating governed by Rth(j–c) = 3 °C/W per diode and Rth(c) = 0.6 °C/W coupling resistance.
Conduction loss modeling uses P = 0.64 × IF(AV) + 0.014 × IF(RMS)², and thermal runaway prevention requires dPtot/dTj < 1/Rth(j–a). Reverse leakage remains ≤15 mA per diode at 125 °C and VRRM, supporting stable operation in high-temperature SMPS front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 170 V - Maximum repetitive reverse blocking voltage per diode; defines usable input voltage range in boost/PFC stages. |
| IF(AV) per diode | 8 A at Tc = 150 °C - Continuous DC current rating per diode under heatsink-cooled conditions. |
| VF typ. | 0.70 V at 8 A, 125 °C - Low forward drop enables <1.1 W conduction loss per diode at rated current. |
| Tj(max) | 175 °C - Enables operation in compact, thermally constrained industrial power enclosures without forced air. |
| Rth(j–c) per diode | 3 °C/W - Directly determines junction temperature rise above case; critical for parallel thermal design. |
| IFSM | 75 A, 10 ms sinusoidal - Supports surge immunity during AC line transients or inrush events. |
| PARM | 335 W, 10 µs - Validated avalanche energy handling enables reliable operation under inductive switching stress. |
Pinout & Package
The STPS16170CR is housed in an I²PAK (TO-263-3L variant) surface-mount package with three terminals: two anodes (A1, A2) and one shared cathode (K) connected to the center thermal tab. The package provides low-profile, high-current capability with exposed copper tab for direct PCB thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first Schottky junction; electrically isolated from A2 but thermally coupled via shared tab. |
| A2 | Anode of Diode 2 | Input terminal for second Schottky junction; enables dual-output or interleaved converter topologies. |
| K (Tab) | Common Cathode / Thermal Pad | Output node for both diodes; must be soldered to large copper pour for thermal management and electrical return path. |
Key Features
| Feature | Design Value |
|---|---|
| High junction temperature capability | 175 °C max operating Tj allows use in sealed, convection-limited industrial power supplies. |
| Low forward voltage drop | 0.70 V typ. at 8 A, 125 °C reduces conduction losses by ~15% vs. comparable 150 V Schottkys. |
| Avalanche capability | 335 W (10 µs) validated per AN1768 - eliminates need for external snubbers in flyback/LLC clamp circuits. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets UL94 V0 - satisfies environmental requirements for EU/US industrial equipment. |
| Dual-center-tab construction | Shared thermal tab enables balanced heat spreading across both diodes while maintaining electrical isolation of anodes. |
Applications
| Server PSU Front-End Rectification | Industrial DC-DC Converter Output Stage |
|---|---|
Use Scenario: High-efficiency 3.3 V/5 V/12 V output rectification in multi-phase synchronous buck converters. IC Role / Device Role / Timing Role: Dual Schottky output rectifier replacing MOSFETs in low-VDS(on) applications where gate drive complexity is undesirable. Use Value: 0.70 V VF minimizes conduction loss at 8 A per leg; 175 °C Tj(max) supports operation near transformer hot spots. |
Use Scenario: Isolated auxiliary supply rectification in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Dual-anode rectifier feeding separate 5 V logic and 24 V I/O rails from a center-tapped transformer secondary. Use Value: Independent anode terminals enable split-rail generation; 15 mA max leakage at 125 °C ensures stable no-load regulation. |
| Telecom AC-DC Power Module | Renewable Energy Inverter Auxiliary Supply |
Use Scenario: Input rectification in 48 V telecom rectifiers operating at 100 kHz+ switching frequency. IC Role / Device Role / Timing Role: High-frequency Schottky replacement for standard PN rectifiers in bridge configurations. Use Value: Low junction capacitance (<1000 pF at 30 V) and fast recovery reduce switching losses; D²PAK variant available for higher power density. |
Use Scenario: Gate driver and control circuit auxiliary supply rectification in solar string inverters. IC Role / Device Role / Timing Role: Dual-diode rectifier supplying isolated bias rails for high-side IGBT drivers and MCU subsystems. Use Value: Avalanche rating (335 W) withstands transformer leakage inductance spikes during PWM dead-time transitions. |
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 |
|---|---|---|---|
| STPS16170CG | D²PAK package (vs. I²PAK); Rth(j–c) = 1.8 °C/W total (lower thermal resistance); 1.38 g weight. | Better suited for high-power-density designs requiring lower junction-to-case thermal resistance. | Select when board space allows larger footprint and thermal performance outweighs mounting height constraints. |
| STPS16170CB | DPAK package; Rth(j–c) = 3 °C/W per diode (same as STPS16170CR); 0.32 g weight; smaller footprint. | Lower current capability due to reduced thermal mass; limited to ≤6 A per diode in continuous operation. | Select for cost-sensitive, lower-power applications where thermal margin permits reduced heatsinking. |
Compared with STPS16170CG and STPS16170CB, the STPS16170CR offers optimal balance of thermal performance (3 °C/W per diode), mechanical robustness (I²PAK's reinforced leadframe), and mounting flexibility-making it preferred for mid-power industrial SMPS where D²PAK is oversized and DPAK is thermally marginal.
Availability
STPS16170CR is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom rectifiers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for STPS16170CR 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.
The STPS16170C series belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for efficiency-critical, high-frequency switched-mode power conversion in industrial and telecom infrastructure.
FAQ
What is the maximum allowable case temperature for continuous operation of STPS16170CR?
The device is rated for IF(AV) = 8 A per diode at Tc = 150 °C. Exceeding this case temperature requires derating per Figure 2 in the datasheet. At Tc = 150 °C, junction temperature reaches 175 °C (Tj(max)) with full load, so sustained operation above 150 °C case violates absolute maximum ratings and risks thermal runaway.
Can STPS16170CR be used in single-diode configuration with one anode left unconnected?
Yes - either anode (A1 or A2) may be left floating while the other operates with the common cathode (K). The unused anode exhibits no parasitic conduction, and thermal coupling remains beneficial. However, layout must ensure adequate creepage/clearance for the open terminal, especially at 170 V reverse bias.
How does the avalanche capability of STPS16170CR compare to standard rectifiers?
Unlike standard PN or fast-recovery rectifiers, STPS16170CR is fully characterized for repetitive avalanche (335 W, 10 µs, Tj = 125 °C) per AN1768 test methodology. This enables reliable clamping in inductive switching circuits without external protection, whereas standard rectifiers typically fail catastrophically under equivalent energy stress.
Is the center tab of STPS16170CR electrically isolated from the anodes?
No - the center tab is the common cathode (K) and is electrically connected to both diode cathodes. It is not isolated; therefore, it must be routed as the system's main cathode return path and tied to the lowest potential node in the circuit. Anode terminals (A1, A2) are electrically isolated from each other and from the tab.
STPS16170CR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 170 V
- Current - Average Rectified (Io) (per Diode):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 15 µA @ 170 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- I2PAK
STPS16170CR FAQ
1.How can I place an order for STPS16170CR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS16170CR 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 STPS16170CR reliable?
The price and inventory of STPS16170CR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS16170CR is usually 5 days.
3.What payment methods are accepted for STPS16170CR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS16170CR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS16170CR?
STPS16170CR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS16170CR 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 STPS16170CR?
For technical support, including STPS16170CR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS16170CR requirements.
6.How does Aetrix verify that STPS16170CR is sourced from the original manufacturer or authorized distributors?
All STPS16170CR 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 STPS16170CR meets industry standards.
7.What is the process for return or replacement of STPS16170CR?
All STPS16170CR units undergo pre-shipment inspection (PSI). If there is an issue with STPS16170CR, 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 STPS16170CR part is unused and in its original packaging.
Return procedure for STPS16170CR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS16170CR Tags
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BAV99,215
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