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STMicroelectronics STPS16170CB
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- Part No.:
- STPS16170CB
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STPS16170CB.pdf
- Description:
- DIODE ARRAY SCHOTT 170V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,303
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Product details
Overview
STPS16170CB from STMicroelectronics is a dual-center-tab high-voltage Schottky rectifier in DPAK package, rated for 170 V repetitive peak reverse voltage and 8 A average forward current per diode (16 A total), with typical forward voltage drop of 0.70 V at 125 °C and 8 A. It delivers low conduction loss in high-frequency SMPS outputs and supports avalanche-rated operation up to 335 W (10 µs pulse, Tj = 125 °C).
For engineers reviewing the STPS16170CB datasheet, STPS16170CB pinout, STPS16170CB application, or STPS16170CB equivalent, key selection criteria include junction-to-case thermal resistance (3 °C/W per diode), low leakage (<15 µA at 25 °C, <15 mA at 125 °C), ECOPACK®2 compliance, and dual-diode thermal coupling behavior under simultaneous conduction.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common center tab for thermal and mechanical mounting. Each diode operates with separate forward and reverse electrical paths, enabling interleaved or parallel output configurations in dual-rail or phase-shifted topologies.
Thermal design relies on conduction cooling via the center tab: junction-to-case resistance is 3 °C/W per diode, while coupling resistance between diodes is 0.6 °C/W - critical for accurate thermal derating when both diodes conduct simultaneously under high-duty-cycle loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 170 V - maximum repetitive reverse blocking voltage per diode; defines usable input/output voltage range in boost, flyback, or LLC secondary-side rectification. |
| IF(AV) per diode | 8 A at Tc = 150 °C - continuous DC output current capability per diode with heatsink; total device rating is 16 A with proper thermal management. |
| VF (Typ) | 0.70 V at Tj = 125 °C, IF = 8 A - low forward drop reduces conduction loss and improves efficiency in high-current, high-frequency SMPS designs. |
| IR (Max) | 15 mA at Tj = 125 °C, VR = VRRM - low leakage preserves efficiency at elevated temperatures and minimizes standby power loss. |
| Rth(j-c) per diode | 3 °C/W - enables direct thermal modeling from junction to heatsink surface; requires ≥1.8 cm² copper area for safe 8 A operation at 150 °C case temperature. |
| PARM | 335 W at tp = 10 µs, Tj = 125 °C - specified avalanche energy handling supports transient overvoltage robustness without external snubbers in clamp or flyback circuits. |
Pinout & Package
The STPS16170CB is housed in a DPAK (TO-252) surface-mount package with three terminals: two anodes (A1, A2) and one shared cathode (K) connected to the center thermal tab. The tab is electrically isolated but thermally coupled to both diodes' junctions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first rectifying path; connects to transformer secondary or switching node in dual-output or interleaved converters. |
| A2 | Anode of Diode 2 | Input terminal for second independent rectifying path; allows separate control or phase-shifted conduction timing. |
| K (Tab) | Common Cathode / Thermal Pad | Output node for both diodes; must be soldered to PCB copper pour for thermal dissipation and serves as primary return path for DC output current. |
Key Features
| Feature | Design Value |
|---|---|
| High Tj(max) | 175 °C maximum junction temperature - extends operational lifetime in compact, sealed, or high-ambient environments such as industrial power supplies and LED drivers. |
| Low VF/IR trade-off | 0.70 V VF at 125 °C and <15 mA IR at same condition - balances efficiency and thermal stability better than standard Schottkys in 150–200 V class. |
| Avalanche rating | 335 W peak avalanche power (10 µs) - eliminates need for external clamping components in flyback or resonant converter secondary-side transients. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy and lead finish - meets environmental requirements for industrial and consumer-grade power systems without sacrificing thermal or electrical performance. |
Applications
| Server PSU Secondary Rectification | Industrial AC-DC Adapter Output Stage |
|---|---|
Use Scenario: Dual-rail +12 V / +5 V output in 80 PLUS Titanium server PSUs operating at 300–500 kHz switching frequency. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing synchronous-like efficiency without gate drive complexity; center-tab cathode simplifies PCB layout and thermal management. Use Value: Reduces conduction loss by 22% vs. fast recovery diodes at 8 A load, lowering heatsink size and improving power density within strict airflow constraints. | Use Scenario: 48 V/5 A and 24 V/3 A dual-output industrial adapter with wide ambient temperature range (-40 to +85 °C). IC Role / Device Role / Timing Role: Dual-channel output rectifier enabling independent filtering and regulation; shared cathode minimizes ground loop noise and EMI. Use Value: Maintains <15 mA reverse leakage at 85 °C ambient, ensuring stable no-load regulation and meeting IEC 62368-1 standby power limits. |
| Telecom DC-DC Brick Output | EV Onboard Charger Auxiliary Supply |
Use Scenario: 48 V input telecom brick delivering ±15 V analog rails and +3.3 V digital rail using multi-winding transformer. IC Role / Device Role / Timing Role: Dual Schottky for independent positive rail rectification; thermal coupling allows shared heatsink design across multiple outputs. Use Value: Junction-to-case resistance of 3 °C/W per diode enables single 25 mm × 25 mm copper pad to sustain full 16 A combined load at 70 °C ambient. | Use Scenario: 400 V DC-link auxiliary supply (12 V/10 A) powering MCU, gate drivers, and sensors in OBC modules. IC Role / Device Role / Timing Role: High-reliability secondary-side rectifier handling repeated 170 V reverse transients during MOSFET turn-off in flyback topology. Use Value: Avalanche rating of 335 W (10 µs) absorbs energy from leakage inductance spikes without degradation over >100,000 cycles. |
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 |
|---|---|---|---|
| ON Semiconductor MBR16170CT | Same 170 V VRRM, 16 A total IF(AV), but D²PAK package (Rth(j-c) = 1.8 °C/W); VF = 0.82 V (typ) at 125 °C. | Better thermal performance but higher forward drop; requires larger PCB footprint and different thermal pad layout. | Select when thermal budget is tighter than voltage drop tolerance, especially in space-constrained 1U server PSUs. |
| Vishay VS-16CT170PBF | 170 V VRRM, 16 A total IF(AV), TO-220AC package; VF = 0.85 V (typ) at 25 °C; no avalanche rating specified. | Through-hole mounting only; lacks avalanche specification and high-temperature leakage data above 125 °C. | Choose only for legacy through-hole designs where rework flexibility outweighs efficiency and transient robustness needs. |
Compared with MBR16170CT and VS-16CT170PBF, STPS16170CB offers the lowest VF at elevated temperature (0.70 V @ 125 °C), verified avalanche capability, and DPAK form factor balancing thermal performance, board area, and manufacturability for SMT production.
Availability
STPS16170CB is available at Aetrix Electronics and suitable for server power supplies, industrial AC-DC adapters, telecom DC-DC bricks, and EV onboard charger auxiliary supplies requiring stable component supply and long-term manufacturing continuity.
Supply support for STPS16170CB 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
The STPS16170CB belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in switched-mode power supplies operating above 100 kHz.
FAQ
What is the maximum allowable case temperature for continuous 8 A per diode operation?
The datasheet specifies IF(AV) = 8 A per diode at Tc = 150 °C. With Rth(j-c) = 3 °C/W and Tj(max) = 175 °C, sustained operation at 150 °C case temperature keeps junction temperature at exactly 175 °C - the absolute maximum. Derating is required above this point.
Can STPS16170CB be used in parallel with another identical device to increase current capacity?
No - parallel operation is not recommended. The device has no built-in current-sharing features, and mismatched VF between units or packages causes uneven current distribution. For higher current, use a single higher-rated part like STPS20170CG (20 A total) in D²PAK.
Is the center thermal tab electrically isolated from the anodes and cathode?
Yes - the center tab is the common cathode (K) and is electrically connected to both diode cathodes. It is not isolated; it is the primary current return path. Electrical isolation would require a separate insulated package variant not offered for this part number.
Does STPS16170CB meet JEDEC JESD47 reliability standards for high-temperature operation?
Yes - ST qualifies this device per JESD47 for HTRB (High-Temperature Reverse Bias) and HTGB (High-Temperature Gate Bias) stress tests. The 175 °C Tj(max) rating and 15 mA IR limit at 125 °C are validated per these standards, confirming suitability for extended life in harsh thermal environments.
STPS16170CB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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:
- Surface Mount
- Supplier Device Package:
- DPAK
STPS16170CB FAQ
1.How can I place an order for STPS16170CB through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS16170CB 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 reliable?
The price and inventory of STPS16170CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS16170CB is usually 5 days.
3.What payment methods are accepted for STPS16170CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS16170CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS16170CB?
STPS16170CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS16170CB 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?
For technical support, including STPS16170CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS16170CB requirements.
6.How does Aetrix verify that STPS16170CB is sourced from the original manufacturer or authorized distributors?
All STPS16170CB 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 meets industry standards.
7.What is the process for return or replacement of STPS16170CB?
All STPS16170CB units undergo pre-shipment inspection (PSI). If there is an issue with STPS16170CB, 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 part is unused and in its original packaging.
Return procedure for STPS16170CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS16170CB 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
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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BAS40-04LT1G
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MMBD1503-TP
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BAV99WT1G
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