SS310L-RVG - 3A 100V Schottky Rectifier | Taiwan Semiconductor
Référence : SS310L-RVG ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0.18 | $0,18 |
| 10 | $0.14 | $1,40 |
| 100 | $0.09 | $9,00 |
| 500 | $0.07 | $35,00 |
| 1 000 | $0.05 | $50,00 |
SS310L-RVG Présentation
A Schottky barrier rectifier is a type of power diode that replaces the conventional P-N junction with a metal-semiconductor junction, producing a lower forward voltage drop and near-zero reverse recovery charge. Within the power management hierarchy, it sits alongside rectifier diodes as a discrete semiconductor used to convert and steer current in switched-mode power supplies, and its surface-mount sub-SMA outline belongs to the broader SMA/DO-214AC surface-mount diode family.
Key features of the SS310L include a 100 V reverse voltage rating, a 3 A average forward current capability, low power loss for improved efficiency, and high surge current capability for inrush-prone circuits. The 'L' suffix denotes a low-reverse-leakage version of the widely used SS310 series, an important advantage in battery-powered and high-temperature designs where leakage-induced standby drain and thermal runaway risk must be minimized.
Technically, the metal-semiconductor junction of a Schottky rectifier conducts with a forward voltage well below that of an ultrafast silicon P-N diode at equivalent current, reducing conduction loss in the 3 A path. Because recovery charge is negligible, switching loss stays low at high frequency, making the device well suited as an output or freewheeling rectifier in converters operating at tens to hundreds of kilohertz. Surge current capability absorbs the repetitive peak currents found in flyback and buck secondary sides.
Typical applications include secondary-side output rectification in AC-DC adapters and chargers, freewheeling and catch diodes in buck and boost converters, reverse-polarity and reverse-battery protection, and DC-DC modules in consumer, industrial, and networking equipment.
When designing with the SS310L-RVG, verify junction temperature against the worst-case combination of average current, forward voltage, and ambient temperature, and provide adequate PCB copper on both terminals for heat dissipation. Always confirm the exact current and leakage specifications in the manufacturer datasheet before finalizing derating margins.
This page synthesizes distributor inventory data, drop-in alternative cross-references, and practical design guidance not found in the manufacturer datasheet, helping engineers select and buy the right 3 A 100 V Schottky rectifier quickly.
Alternatives de remplacement direct pour SS310L-RVG — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
SS310L RHG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310L M2G
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310L MHG
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310 R7G
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310 M6G
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS310L-RVG Valeurs maximales et caractéristiques électriques
| Configuration | Single diode, common cathode marking |
| Reverse Voltage (VRRM) | 100 V |
| Average Forward Current (IF(AV)) | 3 A |
| Diode Type | Schottky barrier rectifier |
| Type de montage | Surface Mount |
| Boîtier | Sub SMA (DO-214AC compatible) |
| Series | SS310L (low reverse leakage) |
| Reverse Recovery Time | Negligible (Schottky construction) |
| Statut RoHS | Compliant (lead-free suffix R) |
Configuration des broches de SS310L-RVG
| Broche 1 | Cathode — Cathode terminal, marked by the polarity band on the package body |
| Broche 2 | Anode — Anode terminal, unmarked end of the package |
Applications typiques
SS310L-RVG convient pour 6 applications: AC-DC Adapter Secondary Rectification, Buck Converter Freewheeling Diode, Reverse-Polarity and Battery Protection, DC-DC Module Output ORing, High-Frequency Boost Converter Output Diode, Industrial and Networking Power Supplies.
AC-DC Adapter Secondary Rectification
The SS310L-RVG serves as the secondary-side output rectifier in flyback AC-DC adapters and chargers, where its 100 V rating comfortably covers reflected output voltage plus leakage-inductance spikes on 5 V to 24 V outputs. The Schottky forward characteristic keeps conduction loss low at 2 A to 3 A average load currents, directly improving adapter efficiency and reducing heat inside sealed plastic enclosures. Negligible reverse recovery eliminates the turn-on loss spike a P-N diode would add at switching frequencies of 65 kHz to 132 kHz. The L-grade low leakage is especially valuable in adapters that remain plugged in, since reverse leakage across the secondary during no-load standby contributes to standby power budgets regulated by energy-efficiency standards.
Recommandé
Buck Converter Freewheeling Diode
In non-synchronous buck converters operating from 24 V to 48 V inputs, the SS310L-RVG works as the freewheeling (catch) diode, conducting the inductor current during the switch off-time. Its 100 V reverse rating handles the input voltage with wide derating margin, while the Schottky's near-zero reverse recovery prevents the large turn-on current spike and associated EMI that a fast-recovery P-N diode would inject at the start of each switching cycle. Low forward voltage reduces the conduction loss term IF x VF during the entire off-time, which at 3 A and tens-of-kilohertz operation represents a meaningful efficiency gain. Place the diode with minimal loop area to the switching node and inductor to contain radiated emissions.
Recommandé
Reverse-Polarity and Battery Protection
The SS310L-RVG functions as a series reverse-polarity protection diode or reverse-battery blocking diode in DC-powered equipment, chargers, and battery packs. In series protection, its low forward voltage drop minimizes the wasted headroom and heat compared with a silicon P-N diode at load currents approaching 3 A. The defining advantage of the L-grade, however, appears in parallel (crowbar-style) protection, where the diode must sit across the battery in reverse indefinitely: low reverse leakage prevents steady self-heating and the thermal runaway risk that higher-leakage Schottky diodes exhibit as junction temperature rises. The 100 V rating also protects against transients on automotive and industrial 12 V to 48 V battery rails.
Recommandé
DC-DC Module Output ORing
In redundant power systems where two supply outputs are diode-ORed onto a common load rail, the SS310L-RVG provides the isolating element. Its low forward voltage at multi-ampere loads minimizes the voltage penalty between the converter output and the load, and spreads low heat across the SMA terminals on the PCB. The low reverse leakage of the L-grade reduces cross-leakage between paralleled supplies during standby, an important factor for always-on networking and server auxiliary rails. Because ORing diodes conduct continuously at up to 3 A average, designers should allocate generous copper area on both terminals and, where possible, use both pads' full copper pour as the heat sink.
Recommandé
High-Frequency Boost Converter Output Diode
The SS310L-RVG is well suited as the output rectifier in boost converters stepping 5 V or 12 V inputs up to 24 V to 48 V outputs at currents up to 3 A average. The 100 V rating covers the boosted output voltage plus switching spikes with margin, and the Schottky structure's absence of reverse recovery is critical in boost topology, where the diode must turn off abruptly each cycle as the switch turns on; a P-N diode here would generate both switching loss and radiated EMI. Low leakage of the L-grade limits the drain on the output capacitor during light-load bursts, supporting higher light-load efficiency in battery-fed portable and IoT power stages.
Recommandé
Industrial and Networking Power Supplies
In industrial control panels, PLC I/O modules, routers, and Ethernet-powered equipment, the SS310L-RVG provides reliable 3 A, 100 V rectification across widely used 12 V, 24 V, and 48 V distribution rails. The surface-mount sub-SMA package supports automated assembly and compact layouts, while the high surge current capability of the Schottky die absorbs inrush events caused by capacitive loads and cable discharge typical on factory floors. The low-leakage characteristic maintains predictable behavior across the wide ambient temperatures found in industrial enclosures and telecom cabinets. Its RoHS-compliant, lead-free construction supports global equipment certification requirements for commercial and industrial electronics.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour SS310L-RVG — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | SS310L RHG | SS310 | SS310 R7G | SS310 M6G |
|---|---|---|---|---|---|
| Package | Sub SMA (DO-214AC compatible) | SMA (DO-214AC) - same footprint | SMA (DO-214AC) - same footprint | SMA (DO-214AC) - same footprint | SMA (DO-214AC) - same footprint |
| Brand | Taiwan Semiconductor | Taiwan Semiconductor | Diodes Incorporated | MCC (Micro Commercial Components) | MCC (Micro Commercial Components) |
| Reverse Voltage (VRRM) | 100 V | 100 V | 100 V | 100 V | 100 V |
| Average Forward Current | 3 A | 3 A | 3 A | 3 A | 3 A |
| Reverse Leakage Grade | Low leakage (L grade) | Low leakage (L grade) | Standard leakage | Standard leakage | Standard leakage |
| Reverse Recovery | Negligible (Schottky) | Negligible (Schottky) | Negligible (Schottky) | Negligible (Schottky) | Negligible (Schottky) |
Principaux différenciateurs
- Low reverse leakage (L grade) cuts standby drain (vs SS310)
- 100 V rating provides wide margin on 24 V and 48 V rails (vs SS310 R7G)
- Trade-off: premium low-leakage grade costs slightly more (vs SS310 M6G)
Notes de conception
Estimate: dissipation in the SS310L-RVG is approximately IF x VF; at 3 A average with a typical Schottky VF near 0.6 V to 0.75 V (verify exact VF in the manufacturer datasheet), conduction loss reaches roughly 1.8 W to 2.3 W. The SMA package has no thermal pad, so heat exits through the two terminals - enlarge both terminal copper pours to at least 10 mm x 10 mm per side on a two-layer board, or add thermal vias to internal planes, when continuous current exceeds about 2 A. Confirm junction temperature against the datasheet maximum before finalizing.
Orient the footprint so the cathode band silkscreen exactly matches the printed band on the SS310L-RVG package body; reversed installation in a rectifier or protection role will block the supply or short the battery. Keep the loop formed by the switching element, the diode, and the bus capacitor as small as possible in buck and boost applications to limit radiated EMI. Use wide, short traces for the 3 A current path and size the traces for the datasheet surge current during capacitor charge events.
Schottky rectifiers exhibit rising reverse leakage with junction temperature; the SS310L mitigates this relative to standard SS310 parts, but you should still derate the 100 V rating in flyback applications where leakage-inductance spikes叠加 on the reflected voltage. Add an RC snubber across the diode if measured spikes exceed roughly 80 percent of VRRM. Also verify that the substitute part, if any, is genuinely the L-grade - standard-leakage cross-brand equivalents share the footprint but have higher IR at temperature.
Informations de conformité
The 'R' suffix in SS310L-RVG denotes Taiwan Semiconductor's lead-free/RoHS-compliant packaging. REACH, halogen-free, and conflict-minerals statuses were not stated in the retrieved distributor data.
