SS0530T/R - 30V 500mA Schottky Diode SOD-123 | PANJIT
Référence : SS0530T/R ✓ 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 |
| 3 000 | $0.04 | $120,00 |
SS0530T/R Présentation
A Schottky diode is a semiconductor device formed by a metal-semiconductor junction rather than the P-N junction used in conventional rectifiers. This construction yields a lower forward voltage drop (typically 0.35 V to 0.55 V at the rated current), negligible reverse-recovery time, and faster switching speed. As a member of the discrete-semi > diodes family, the SS0530 sits at the entry level of the Schottky rectifier hierarchy (Schottky diode -> rectifier diode -> discrete semiconductor), and is widely used as a low-loss rectifier, reverse-polarity blocker, or OR-ing element in 5 V to 24 V power rails.
Key features include a 30 V peak repetitive reverse voltage (VRRM), a 500 mA average rectified forward current (IF(AV)) rating, low turn-on voltage, and solderable terminals qualified to MIL-STD-202 Method 208. The molded green plastic SOD-123 package weighs approximately 0.008 g and is polarity-banded per the standard SOD-123 cathode-bar convention. The PN-junction guard ring integrated into the die improves transient and ESD robustness versus simple Schottky structures.
The SS0530 uses a barrier-style Schottky die in a SOD-123 outline, allowing it to replace larger SMA-packaged parts on many PCBs while maintaining thermal performance adequate for 500 mA continuous conduction when the land pattern is sized correctly. Its fast switching makes it suitable for high-frequency DC-DC converter outputs, freewheeling roles, and signal clamping in low-voltage logic interfaces.
Typical applications include low-voltage rectification in portable and battery-powered devices, freewheeling diodes across relay coils and inductors, reverse-polarity protection on USB and 5 V to 12 V rails, and DC-DC converter output rectification. The 30 V reverse rating comfortably covers 5 V, 12 V, and 24 V nominal buses.
When designing with this part, ensure the PCB land pattern follows the JEDEC SOD-123 recommendation and that the cathode band orientation is observed. Avoid exceeding 500 mA continuous forward current, and derate appropriately if the ambient temperature exceeds 25 C.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour SS0530T/R — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec SS0530T/R (même facteur de forme et même empreinte) — différant par Configuration, RoHS Status, Package, Diode Type, Packaging.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
SS0530_R1_00001
✅ Remplacement direct✓ En stock
$0.035 / unité
Voir la fiche technique →B0530W
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS0530
✅ Remplacement direct✓ En stock
$0.03 / unité
Voir la fiche technique →SS0530
✅ Remplacement direct✓ En stock
$0.03 / unité
Voir la fiche technique →SS14
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SS0530T/R Valeurs maximales et caractéristiques électriques
| Diode Type | Schottky Barrier Diode |
| Configuration | Single, discrete |
| Peak Repetitive Reverse Voltage (VRRM) | 30 V |
| Average Rectified Forward Current (IF(AV)) | 500 mA |
| Boîtier | SOD-123 (Plastic Package-2, Green) |
| Type de montage | Surface Mount |
| Reverse Recovery Time (trr) | Negligible (Schottky, no minority carrier storage) |
| Approx. Weight | 0.008 g |
| Terminal Finish | Solderable per MIL-STD-202 Method 208 |
| Polarity Band | Cathode marked per standard SOD-123 convention |
| ESD / Transient Protection | PN-junction guard ring for transient and ESD protection |
| Packaging Code | Tape and Reel ("/R" suffix) |
| Statut RoHS | Compliant (Green Plastic Package-2) |
Configuration des broches de SS0530T/R
| Broche 1 | Cathode (K) — Cathode terminal, identified by the colored band on the SOD-123 package body |
| Broche 2 | Anode (A) — Anode terminal, opposite end of the SOD-123 body from the cathode band |
Applications typiques
SS0530T/R convient pour 6 applications: Reverse-Polarity Protection on 5V-24V Rails, Freewheeling Diode for Relay Coils and Inductors, DC-DC Converter Output Rectification, Signal Clamping and Logic-Level Protection, OR-ing Diode for Redundant Power Paths, Battery Discharge Path in Portable Devices.
Reverse-Polarity Protection on 5V-24V Rails
The SS0530T/R is well-suited as a low-loss reverse-polarity blocker on 5 V, 12 V, and 24 V power inputs. Its 30 V VRRM comfortably exceeds nominal 24 V bus voltages with transient headroom, while the 500 mA IF(AV) rating covers most USB and small-load supply paths. Placed in series with the input rail, the SS0530T/R drops only about 0.4 V at 500 mA - far less than a P-FET ideal-diode solution - making it ideal for cost-sensitive portable designs where efficiency and BOM simplicity matter.
Recommandé
Freewheeling Diode for Relay Coils and Inductors
Across relay coils, solenoids, and small DC motor windings, the SS0530T/R clamps inductive kick-back and protects driver transistors. The Schottky construction gives negligible reverse recovery time, so switching losses stay low even at PWM frequencies up to 100 kHz. The 500 mA IF(AV) handles typical small-signal relay coils (12 V / 70 mA to 200 mA) with substantial margin. Use it in parallel with the coil, cathode to the higher-voltage rail, to safely dissipate stored magnetic energy at turn-off.
Recommandé
DC-DC Converter Output Rectification
In low-power buck and buck-boost converters, the SS0530T/R can serve as the synchronous-rectifier replacement for a Schottky freewheeling diode. Its 30 V reverse rating covers 5 V and 12 V output rails even with significant ringing, and the negligible trr reduces dead-time losses versus P-N junction diodes. Designers choosing SS0530T/R over a SiC or GaN part save BOM cost for sub-1 A applications where conduction loss (not switching loss) dominates efficiency.
Recommandé
Signal Clamping and Logic-Level Protection
The SS0530T/R works as a low-capacitance clamping diode on low-voltage logic and analog signal lines. With negligible reverse recovery, it recovers instantly when the signal transitions back into range, preserving signal integrity on GPIO, I2C, and UART lines. The PN-junction guard ring provides additional transient and ESD protection versus bare Schottky junctions, making the SS0530T/R a robust choice for I/O connector ESD paths in industrial control interfaces.
Recommandé
OR-ing Diode for Redundant Power Paths
In redundant supply designs where two power sources feed a common load, the SS0530T/R provides an inexpensive OR-ing element. Each SS0530T/R drops about 0.4 V at 500 mA, which is acceptable in non-isolated 5 V and 12 V systems. Compared to ideal-diode P-FET controllers, the SS0530T/R costs a fraction of the price and requires no auxiliary control circuitry, trading efficiency for BOM simplicity in cost-sensitive redundancy paths.
Recommandé
Battery Discharge Path in Portable Devices
In battery-powered products, the SS0530T/R can be placed in series with the battery discharge path to block reverse-current flow during charging events or load transients. The 500 mA rating covers sub-1 A discharge profiles typical of wearables, IoT sensor nodes, and small handhelds. The low forward drop of the Schottky junction minimizes wasted battery energy, extending runtime versus a P-N junction rectifier with its 0.7 V to 1.0 V drop.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour SS0530T/R — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | SS0530_R1_00001 | B0530W | SS0530 | SS0530 | SS14 |
|---|---|---|---|---|---|---|
| Brand | PANJIT | PANJIT | Diodes Incorporated | Won-Top Electronics | TIPTEK | Vishay Intertechnology |
| Package | SOD-123 | SOD-123 - same | SOD-123 - same | SOD-123 - same | SOD-123 - same | SOD-123 - same |
| Peak Repetitive Reverse Voltage (VRRM) | 30 V | 30 V | 30 V | 30 V | 30 V | 40 V |
| Average Rectified Forward Current (IF(AV)) | 500 mA | 500 mA | 500 mA | 500 mA | 500 mA | 1 A |
| Diode Type | Schottky Barrier | Schottky Barrier | Schottky Barrier | Schottky Barrier | Schottky Barrier | Schottky Barrier |
| Reverse Recovery Time (trr) | Negligible | Negligible | Negligible | Negligible | Negligible | Negligible |
| ESD / Transient Protection | PN-junction guard ring | PN-junction guard ring | Standard Schottky | PN-junction guard ring | PN-junction guard ring | Standard Schottky |
| RoHS / Green Compliance | Yes (Green Plastic Package-2) | Yes | Yes | Yes | Yes | Yes |
| Packaging Format | Tape & Reel (/R suffix) | Reel (R1 suffix) | Tape & Reel (W suffix) | Bulk / Tube | Bulk / Tube | Tape & Reel |
Principaux différenciateurs
- Integrated PN-junction guard ring for transient and ESD protection (vs B0530W)
- Single 30 V / 500 mA SOD-123 part with consistent cross-source availability (vs SS14 (Vishay))
- Green Plastic Package-2 with solderable-per-MIL-STD-208 terminals (vs Generic SOD-123 Schottky)
Notes de conception
Estimated: at IF(AV) = 500 mA and VF = 0.45 V, the SS0530T/R dissipates roughly 225 mW of conduction loss. The SOD-123 package has a typical theta_JA near 200 C/W on a 1 oz copper 1 sq-inch pad, giving an approximate junction temperature rise of 45 C above 25 C ambient. For sustained 500 mA operation above 50 C ambient, increase the copper land-pour area or step up to a SMA-packaged equivalent.
Use the JEDEC-recommended SOD-123 land pattern: cathode pad about 2.5 mm x 1.0 mm, anode pad mirrored, with thermal vias under the cathode pad for improved heat transfer. Hand-soldering requires a fine-tip iron and low thermal mass to avoid lifting the small plastic body; reflow profiles should follow the JEDEC J-STD-020 MSL classification for the part's moisture sensitivity level.
Do not exceed the 500 mA average rectified forward current (IF(AV)) rating - the datasheet's surge rating is not the continuous rating and is intended for half-cycle transients only. Verify the cathode band orientation matches the schematic: reversed installation shorts the protected supply rail through the low-VF Schottky junction. For reverse-polarity protection, never use the SS0530T/R alone on rails above 24 V nominal because the 30 V VRRM leaves insufficient transient margin.
Informations de conformité
RoHS compliant per Green Plastic Package-2 designation. REACH, halogen-free, and conflict-minerals status not stated in the verified PANJIT datasheet excerpts - marked unknown. Not AEC-Q100 qualified; this part is intended for industrial/consumer use, not automotive.
