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STMicroelectronics STPS30170CG
- Part No.:
- STPS30170CG
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS30170CG.pdf
- Description:
- DIODE ARRAY SCHOT 170V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,281
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Product details
Overview
STPS30170CG from STMicroelectronics is a dual-center-tap high-voltage Schottky rectifier in D²PAK (TO-263) package, rated for 170 V reverse voltage and 15 A average forward current per diode. It delivers low forward voltage drop (0.69 V typ. at 15 A, 125 °C), low leakage current (20 µA max. at 25 °C), and avalanche-rated power (750 W peak). Designed for high-frequency switch-mode power supplies in industrial AC/DC adapters and server PSUs.
For engineers reviewing the STPS30170CG datasheet, STPS30170CG pinout, STPS30170CG application, or STPS30170CG equivalent, key selection criteria include junction-to-case thermal resistance (1.6 °C/W per diode), dual-diode center-tap configuration, ECOPACK®2 compliance, and validated operation up to 175 °C junction temperature.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap topology), enabling synchronous rectification or dual-output DC/DC conversion. Its low VF–IR trade-off targets efficiency-critical 100–500 kHz SMPS stages where conduction loss dominates over switching loss.
Thermal design relies on direct conduction cooling via the exposed metal tab; Rth(j–c) is specified per diode (1.6 °C/W) and total device (0.95 °C/W), with coupling resistance (0.3 °C/W) accounting for inter-diode thermal crosstalk under simultaneous conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 170 V - Maximum repetitive reverse blocking voltage per diode; supports 120/230 VAC input front-end designs with margin. |
| IF(AV) per diode | 15 A - Average forward current rating per diode at TC = 150 °C; enables compact heatsink sizing in continuous conduction mode. |
| VF (typ) | 0.69 V at 15 A, 125 °C - Low conduction loss reduces power dissipation by ~1.5 W vs. comparable 0.85 V diodes at same load. |
| IR (max) | 20 µA at 25 °C, VR = VRRM - Low leakage preserves efficiency in standby and light-load conditions. |
| Tj (max) | +175 °C - Enables operation in high-ambient environments (e.g., enclosed server PSUs) without derating. |
| Rth(j–c) per diode | 1.6 °C/W - Defines minimum heatsink requirement: ≤ 40 °C rise at 25 W dissipation per diode. |
| PARM | 750 W at tp = 10 µs - Avalanche energy rating allows safe handling of inductive turn-off transients in flyback or LLC resonant converters. |
Pinout & Package
The STPS30170CG is housed in a surface-mount D²PAK (TO-263) package with an exposed copper drain tab for thermal conduction. The package features three terminals: two anodes (A1, A2) and one shared cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first Schottky diode path; connects to primary-side winding tap or secondary winding leg 1. |
| A2 | Anode 2 | Input terminal for second Schottky diode path; used for dual-output or interleaved rectification topologies. |
| K | Common Cathode | Shared output node; serves as center-tap return point for balanced dual-output DC/DC or full-wave rectification. |
Key Features
| Feature | Design Value |
|---|---|
| High junction temperature capability | Rated for continuous operation up to +175 °C junction temperature-enables use in thermally constrained enclosures without forced air. |
| Low VF–IR trade-off | 0.69 V VF (typ.) at 15 A / 125 °C and only 20 µA IR (max.) at 25 °C-optimizes efficiency across full load range. |
| Avalanche energy rating | 750 W peak repetitive avalanche power (tp = 10 µs)-protects against voltage spikes during transformer reset or MOSFET turn-off. |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free soldering requirements-supports global environmental compliance without performance compromise. |
| Dual center-tap topology | Two independent anodes with shared cathode-reduces component count in dual-output flyback or center-tapped forward converters. |
Applications
| Server Power Supplies | Industrial AC/DC Adapters |
|---|---|
|
Use Scenario: 1U server PSU delivering dual +12 V and +5 V rails with tight thermal constraints. IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier providing synchronous rectification for both outputs using single device. Use Value: Reduces component count by 2× vs. discrete diodes and lowers conduction loss by 1.2 W per rail at full load. |
Use Scenario: 200 W industrial AC/DC adapter powering PLC I/O modules in ambient temperatures up to 70 °C. IC Role / Device Role / Timing Role: Output rectifier in center-tapped forward converter operating at 250 kHz switching frequency. Use Value: Enables 92.5% efficiency at full load due to 0.69 V VF and maintains stable regulation under 175 °C junction temp. |
| Telecom Rectifier Modules | LED Driver Secondary Side |
|
Use Scenario: -48 V telecom rectifier module requiring high reliability and surge immunity in outdoor cabinets. IC Role / Device Role / Timing Role: Primary output rectifier handling 30 A total output current with redundant diode paths. Use Value: Avalanche rating (750 W) withstands line surges; 175 °C rating ensures 10-year MTBF at 65 °C ambient. |
Use Scenario: Constant-current LED driver for street lighting with dual-string output and EMI-sensitive environment. IC Role / Device Role / Timing Role: Center-tapped rectifier feeding two parallel LED strings from flyback secondary winding. Use Value: Low IR (<20 µA) prevents string imbalance in standby; low VF minimizes thermal drift between strings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-30CPH07-M3 | 70 V VRRM, 30 A IF(AV) total, TO-247 package, higher VF (0.82 V typ.) | Lower voltage rating limits use to ≤ 48 V systems; TO-247 requires through-hole assembly and larger footprint. | Select when higher total current (30 A) is needed at lower voltage and through-hole mounting is acceptable. |
| ON Semiconductor MBR30H150CT | 150 V VRRM, 30 A IF(AV) total, TO-220AB package, no avalanche rating, VF = 0.95 V (typ.) | Lacks avalanche specification and has higher VF-unsuitable for transient-prone or high-efficiency designs. | Acceptable only in cost-sensitive, low-transient, ≤ 150 V applications where thermal margin is abundant. |
Compared with VS-30CPH07-M3 and MBR30H150CT, STPS30170CG uniquely combines 170 V blocking, dual-center-tap topology, avalanche rating, and D²PAK surface-mount compatibility-making it optimal for space-constrained, high-reliability 230 VAC-input SMPS.
Availability
STPS30170CG is available at Aetrix Electronics and suitable for server power supplies, industrial AC/DC adapters, and telecom rectifier modules requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for STPS30170CG 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 management, analog, microcontrollers, and automotive ICs.
The STPS30170CG belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability switch-mode power conversion in industrial and computing infrastructure.
FAQ
What is the thermal resistance from junction to case for each diode in STPS30170CG?
The junction-to-case thermal resistance per diode is 1.6 °C/W, measured under standard test conditions with the tab mounted to a large copper plane. This value assumes proper soldering of the exposed tab and accounts for heat flow through the D²PAK package's internal structure to the mounting surface.
Can STPS30170CG be used in place of a single 30 A Schottky diode?
No-it is a dual-diode device with two independent anodes and one shared cathode. It cannot replace a single-anode/single-cathode 30 A diode. It is intended for center-tapped or dual-output topologies where two anode inputs feed one common output node.
Is the STPS30170CG avalanche-rated, and how is that verified?
Yes-ST specifies 750 W peak repetitive avalanche power at tp = 10 µs and Tj = 125 °C. This rating is validated per JEDEC JESD24-11 and confirmed in ST's production test flow using controlled unclamped inductive switching (UIS) waveforms.
Does STPS30170CG require a heatsink in typical applications?
Yes-due to its 15 A per diode rating and power dissipation profile, thermal management is essential. A minimum 40 cm² copper pour (2 oz. FR4) is recommended; for >20 W total dissipation, an external heatsink attached to the tab is required to maintain Tj ≤ 175 °C.
STPS30170CG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- 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):
- 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 FAQ
1.How can I place an order for STPS30170CG through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS30170CG 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 reliable?
The price and inventory of STPS30170CG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS30170CG is usually 5 days.
3.What payment methods are accepted for STPS30170CG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS30170CG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS30170CG?
STPS30170CG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS30170CG 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?
For technical support, including STPS30170CG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS30170CG requirements.
6.How does Aetrix verify that STPS30170CG is sourced from the original manufacturer or authorized distributors?
All STPS30170CG 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 meets industry standards.
7.What is the process for return or replacement of STPS30170CG?
All STPS30170CG units undergo pre-shipment inspection (PSI). If there is an issue with STPS30170CG, 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 part is unused and in its original packaging.
Return procedure for STPS30170CG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS30170CG Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
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.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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