STPS20LCD80CR STMicroelectronics Schottky Diode with Dual Anode (Other) In Stock
STMicroelectronics STPS20LCD80CR is an 80 V, 2×10 A dual-anode common-cathode power Schottky rectifier diode designed for high-efficiency power conversion. Features a maximum forward voltage of 1.16 V at rated current, minimizing conduction losses. Suitable for switch-mode power supply output rectification and freewheeling applications requiring low forward drop.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STPS20LCD80CR Datasheet PDF
- Category
- Schottky Diode with Dual Anode
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 80 V reverse voltage rating with dual 10 A anode elements sharing a common cathode for full-wave rectification
- 1.16 V maximum forward voltage reduces conduction losses and improves SMPS efficiency
- Schottky silicon construction provides fast reverse recovery for high-frequency switching circuits
- Common-cathode dual configuration simplifies center-tap and full-wave bridge rectifier designs
- Optimized for efficiency applications in switch-mode power supplies and DC-DC converters
Applications
The STPS20LCD80CR is used as the output rectifier in switch-mode power supplies and DC-DC converters operating up to 80 V, where its low 1.16 V forward drop directly improves overall power conversion efficiency. Its common-cathode dual-element configuration is ideal for center-tap transformer rectification in telecom power systems and server power supplies handling up to 20 A total output current. Engineers also use it as a freewheeling diode in synchronous buck and boost converter topologies where fast Schottky recovery minimizes switching losses.
Specifications
| Reach Compliance Code | Not Compliant |
| YTEOL | 5.82 |
| Application | EFFICIENCY |
| Case Connection | CATHODE |
| Configuration | COMMON CATHODE, 2 ELEMENTS |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.16V |
| JESD-30 Code | R-PSFM-T3 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 150A |
| Number of Elements | 2 |
| Number of Phases | 1 |
| Output Current-Max | 10A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Rep Pk Reverse Voltage-Max | 80V |
| Reverse Current-Max | 15 µA |
| Reverse Test Voltage | 80V |
| Surface Mount | NO |
| Technology | SCHOTTKY |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STPS20LCD80CR:
Rectifier Diode, Schottky, 1 Phase, 2 Element, 10A, 80V V(RRM), Silicon, TO-220AB
Rectifier Diode, Schottky, 1 Phase, 2 Element, 10A, 80V V(RRM), Silicon
Frequently Asked Questions
What is the current and voltage rating of the STPS20LCD80CR, and how are its two anode elements configured?
The STPS20LCD80CR contains 2 independent anode elements each rated at 10 A average forward current and 80 V peak reverse voltage, sharing a common cathode terminal. This common-cathode dual configuration means both elements can be used independently as two 10 A diodes, or in parallel as a single 20 A rectifier — though parallel operation requires matched devices to ensure balanced current sharing at rated load.
How does the 1.16 V maximum forward voltage of the STPS20LCD80CR compare to a standard PN junction diode in a 12 V SMPS output stage?
A standard silicon PN junction rectifier diode typically has a forward voltage of 0.7 V to 1.1 V at low current, rising to 1.5 V or more at 10 A. The STPS20LCD80CR Schottky's 1.16 V maximum at 10 A is significantly lower than a standard rectifier at equivalent current, translating to roughly 30% to 40% lower conduction loss per diode. In a 12 V/10 A output stage this can recover 0.3 W to 0.5 W per diode — measurable efficiency improvement in high-density power supplies.
Which power supply topologies benefit most from using the STPS20LCD80CR as the output rectifier?
Center-tap transformer rectifiers benefit most because the common-cathode dual configuration maps directly onto the two anode connections of a center-tap secondary winding, requiring no additional components. Flyback and forward converters operating at 80 V output also benefit from the Schottky's near-zero reverse recovery time versus ultrafast PN junction diodes, reducing switching-transition power loss at frequencies from 100 kHz to 500 kHz. Freewheeling positions in buck regulators with 48 V to 72 V input buses also suit the 80 V rating.
What does the REACH non-compliance marking on the STPS20LCD80CR mean for procurement in EU-regulated markets?
The REACH non-compliant flag indicates this specific part variant may contain one or more substances of very high concern (SVHCs) listed under the EU REACH regulation above 0.1% by weight. For designs shipped into the European Union or REACH-regulated markets, engineers should verify the current SVHC declaration from STMicroelectronics, evaluate whether a REACH-compliant alternative exists in the STPS20LCD family, or obtain a formal exemption. Procurement teams for industrial and consumer EU products should flag this as a compliance risk requiring supplier documentation before a final BOM sign-off.
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