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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

STMicroelectronics STPS16170CB-TR

Name: STPS16170CB-TR
Brand: STMicroelectronics
SKU: STPS16170CB-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS16170CB-TR

Manufacturer:: STMicroelectronics

Category:: Diode Arrays

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

Datasheet:: STPS16170CB-TR.pdf

Description:: DIODE ARRAY SCHOTT 170V 8A DPAK

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Product details

Overview

STPS16170CB-TR from STMicroelectronics is a dual-center-tab high-voltage Schottky rectifier in DPAK package, rated for 170 V repetitive peak reverse voltage and 2 × 8 A average forward current per diode at T_c = 150 °C. It delivers typ. 0.70 V forward voltage drop at 125 °C and 8 A, with 15 µA max reverse leakage at 25 °C, optimized for high-frequency switched-mode power supplies.

For engineers reviewing the STPS16170CB-TR datasheet, STPS16170CB-TR pinout, STPS16170CB-TR application, or STPS16170CB-TR equivalent, key selection criteria include junction-to-case thermal resistance (3 °C/W per diode), avalanche capability (335 W, 10 µs), and ECOPACK®2 compliance - critical for thermally constrained industrial and telecom SMPS designs.

Technical Context

This dual-diode Schottky rectifier integrates two independent anode-cathode junctions sharing a common center tab for mechanical and thermal coupling. Its low VF–IR trade-off enables high-efficiency operation in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) topologies, while specified avalanche energy handling supports transient overvoltage resilience without external clamping.

Thermal design relies on conduction cooling via the exposed center tab; R_th(j-c) is 3 °C/W per diode, and coupling resistance between diodes is 0.6 °C/W. The device operates up to 175 °C junction temperature, with derating required beyond T_j = 125 °C for repetitive avalanche pulses per Figure 3.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	170 V - Withstands peak reverse voltage in boost PFC and LLC resonant converter secondary-side rectification.
I_F(AV)	2 × 8 A - Dual-diode rating allows parallel output paths or interleaved phase rectification in 1 kW+ SMPS.
V_F (Typ)	0.70 V @ 8 A, 125 °C - Enables <1.1 W conduction loss per diode at full load, reducing heatsink requirements.
I_R (Max)	15 µA @ 25 °C, 15 mA @ 125 °C - Low leakage preserves efficiency in standby and light-load conditions.
T_j(max)	175 °C - Supports operation in sealed enclosures or high-ambient environments without forced air.
P_ARM	335 W @ 10 µs, T_j = 125 °C - Handles line surge and transformer reset spikes without failure.
R_th(j-c)	3 °C/W per diode - Requires ≥25 mm² copper pour under tab for ≤45 °C rise at 8 A per diode.

Pinout & Package

DPAK (TO-252) package with three terminals: two anodes (A1, A2) and one shared cathode (K) connected to the center thermal tab. The exposed metal tab serves as both electrical cathode connection and primary heat dissipation path.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode of Diode 1	Input node for first rectification path; electrically isolated from A2.
A2	Anode of Diode 2	Input node for second rectification path; enables dual-output or phase-split configurations.
K (Tab)	Common Cathode	Output node and primary thermal interface; must be soldered to ≥25 mm² copper area for rated current.

Key Features

Feature	Design Value
High junction temperature capability	Rated for continuous operation up to 175 °C - eliminates need for derating in high-ambient industrial power supplies.
Low forward voltage drop	0.70 V typ. @ 8 A, 125 °C - reduces conduction loss by ~18% vs. comparable 100 V Schottkys in same package.
Avalanche energy rating	335 W for 10 µs pulse - enables use in flyback snubberless designs and eliminates discrete TVS in many 48 V telecom systems.
ECOPACK®2 compliance	Halogen-free, RoHS-compliant epoxy - meets IPC-1752a reporting requirements for automotive and medical OEMs.

Applications

Server AC-DC Power Supply

Industrial Motor Drive DC Bus

Use Scenario: Secondary-side synchronous rectification in 80 PLUS Titanium-certified 1.5 kW server PSUs.

IC Role / Device Role / Timing Role: Dual-diode rectifier replacing two discrete 100 V Schottkys to reduce component count and PCB footprint.

Use Value: 0.70 V V_F cuts conduction loss by 1.2 W per diode vs. legacy parts, improving full-load efficiency by 0.3%.

Use Scenario: DC link freewheeling path in 3-phase IGBT inverter modules for HVAC compressors.

IC Role / Device Role / Timing Role: Bidirectional clamp diode absorbing regenerative energy during braking cycles.

Use Value: 335 W avalanche rating handles 600 V bus transients without snubber, simplifying gate drive isolation.

Telecom Rectifier Module

EV Onboard Charger PFC Stage

Use Scenario: Output rectification in -48 V distributed power architecture (DPA) modules.

IC Role / Device Role / Timing Role: High-reliability dual-anode rectifier enabling redundant output rails from single transformer secondary.

Use Value: 15 µA leakage at 25 °C ensures <10 mW standby loss per diode, meeting ETSI EN 300 132-2 Class 1.1.

Use Scenario: Boost diode in 6.6 kW OBC PFC stage operating at 100 kHz switching frequency.

IC Role / Device Role / Timing Role: Fast-recovery Schottky handling 16 A RMS current with minimal reverse recovery charge.

Use Value: 170 V V_RRM supports 400 V DC bus with 20% margin, eliminating need for series-connected diodes.

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
STPS16170CR	I²PAK package; higher thermal mass (1.5 g), R_th(j-c) = 2.5 °C/W per diode	Better suited for high-volume automated assembly with through-hole reflow; requires larger PCB footprint	Select when board-level thermal management favors larger copper area and higher surge robustness is needed.
STPS16170CG-TR	D²PAK package; R_th(j-c) = 1.8 °C/W total, 1.38 g weight, 1000 pcs/reel	Higher power density and lower thermal resistance ideal for space-constrained 1U server PSUs	Select when minimizing junction temperature rise is critical and D²PAK footprint is acceptable.

Compared with STPS16170CR and STPS16170CG-TR, the STPS16170CB-TR offers optimal balance of thermal performance (3 °C/W), compact DPAK footprint, and 2500-piece tape-and-reel packaging - making it preferred for mid-power industrial SMPS where cost, size, and manufacturability are jointly constrained.

Availability

STPS16170CB-TR is available at Aetrix Electronics and suitable for server AC-DC power supplies, industrial motor drive DC bus circuits, and telecom rectifier modules requiring stable component supply across multi-year production cycles.

Supply support for STPS16170CB-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 silicon solutions for automotive, industrial, and power management applications.

The STPS16170C series belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability switched-mode power conversion in telecom infrastructure, industrial automation, and renewable energy systems.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS16170CB-TR is rated for I_F(AV) = 8 A per diode at T_c = 150 °C. Exceeding this case temperature requires linear derating per Figure 2 in the datasheet; at T_c = 100 °C, maximum average current drops to ~5.2 A per diode. Thermal design must ensure the center tab remains below 150 °C under worst-case ambient and airflow conditions.

Can this device replace a single 16 A Schottky in a single-path design?

No - STPS16170CB-TR contains two independent 8 A diodes with separate anodes and a shared cathode. It cannot substitute a monolithic 16 A device in single-anode configurations. Its dual-anode structure is intended for split-output, interleaved, or redundant rectification topologies, not current doubling in series/parallel without external balancing.

Is the center tab electrically isolated from the PCB ground plane?

No - the center tab is the common cathode (K) terminal and must be electrically connected to the system's output ground or negative rail. It is not insulated; therefore, the PCB copper pour under the tab must be part of the cathode net, not a floating thermal pad. Use solder mask-defined thermal relief only if required for assembly, never dielectric isolation.

Does this part support lead-free reflow profiles?

Yes - STPS16170CB-TR is qualified for standard lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C for 30 seconds. The DPAK package uses matte tin plating on leads and complies with ST's ECOPACK®2 halogen-free specification, ensuring compatibility with Pb-free assembly processes without delamination or voiding risks.

STPS16170CB-TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

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):: 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:: Surface Mount

Supplier Device Package:: DPAK

STPS16170CB-TR FAQ

1.How can I place an order for STPS16170CB-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS16170CB-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 STPS16170CB-TR reliable?

The price and inventory of STPS16170CB-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS16170CB-TR is usually 5 days.

3.What payment methods are accepted for STPS16170CB-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS16170CB-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS16170CB-TR?

STPS16170CB-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS16170CB-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 STPS16170CB-TR?

For technical support, including STPS16170CB-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS16170CB-TR requirements.

6.How does Aetrix verify that STPS16170CB-TR is sourced from the original manufacturer or authorized distributors?

All STPS16170CB-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 STPS16170CB-TR meets industry standards.

7.What is the process for return or replacement of STPS16170CB-TR?

All STPS16170CB-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS16170CB-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 STPS16170CB-TR part is unused and in its original packaging.

Return procedure for STPS16170CB-TR:

1.Submit a request within 90 days.

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

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