brand - st-dat
| model | footprint | mark |
|---|---|---|
| SS14 | SMA | SS14/SL |
| 1N4007 | SMA | M7 |
diode info
Schottky diode
Schottky diode SS14 DO-214AC SMA Schottky diode BAT54J.115 SOD-323F Schottky diode ES2D DO-214AA (SMB) == ES2A, ES2B, ES2C, ES2D == Vishay
Voltage regulator diodes
nexperia
Ultrafast Diode
- 200 V, 4 A High Effiency Ultrafast Diode
- st
SRGC10MH 1N4007 Specs
| Feature | SRGC10MH | 1N4007 |
|---|---|---|
| Type | Standard Rectifier | Standard Rectifier |
| Package | SMA (Surface Mount) | DO-41 (Through-Hole) |
| Peak Reverse Voltage (VRRM) | 1000 V | 1000 V |
| Avg. Forward Current (IF(AV)) | 1 A | 1 A |
| Forward Voltage (VF @ 1A) | ~1.1 V | ~1.1 V |
| Reverse Current (IR @ VRRM) | ~5 µA (Typical) | ~5 µA (Typical) |
| Operating Temperature | -55°C to +150/175°C * | -55°C to +175°C (Typ) |
*Operating temperature for SRGC10MH can vary slightly by manufacturer.
voltage drop of diode
| Diode | Type | Max Current | Typical Vf @ 1A | Notes | VF | mark |
|---|---|---|---|---|---|---|
| 1N4001–1N4007 | Silicon | 1A | ~0.7V | General-purpose rectifier | ||
| 1N5401–1N5408 | Silicon | 3A | ~0.7–1.0V | Higher current, bulkier | ||
| UF4001–UF4007 | Silicon | 1A | ~0.7V | Ultra-fast silicon version | ||
| 1N5817 | Schottky | 1A | ~0.45V | Good low-drop Schottky | ||
| 1N4148 | Fast | 0.3A | ~1.0V | General-purpose small-signal diode | T4 | |
| 1N5819 | Schottky | 1A | ~0.5V | Slightly higher Vf than 1N5817 | S4 | |
| SS14 | Schottky | 1A (avg) | ~0.5V | Compact SMD version | ||
| MBRS140 | Schottky | 1A | ~0.5V | SMD Schottky, low forward drop | ||
| MR754 | Power | 6A | ~1.0–1.1V | High-power stud-mount diode | ||
| BYV29 | Power | 9A | ~0.9–1.2V | Fast recovery, TO-220 | ||
| RHRP8120 | Power | 8A | ~1.0–1.2V | Ultrafast recovery, large package | ||
| SS34 | 3A | 40V | ||||
| MBR0530 | Schottky | 0.5A | ~0.37–0.5V | SOD-123 package | 30V |
MBR0530 — Schottky rectifier, SOD-123; VRRM 30 V; IF(AV) 0.5 A; IFSM 5 A (8.3 ms); VF 0.37–0.5 V @ 0.5 A, 25°C; IR ≤ 0.5 mA @ 30 V, 25°C; Tj −55 to +125°C.
1N5401
MBR0520L
BAV99S == High-speed switching diode
https://assets.nexperia.com/documents/data-sheet/BAV99S.pdf
Schottky rectifier
| Part | Type | Max Forward Current (IF) | Reverse Voltage (VR) | Forward Voltage (VF) | Package | Notes |
|---|---|---|---|---|---|---|
| SS14 | Schottky Rectifier | 1 A | 40 V | 0.3–0.5 V | DO-214AC (SMD) | Surface-mount, common for low-voltage power |
| 1N5819 | Schottky Rectifier | 1 A | 40 V | 0.3–0.6 V | DO-41 (Through-hole) | Through-hole, widely used in DIY circuits |
| MBR0530 | Schottky Rectifier | 0.5 A | 30 V | 0.45 V typical | DO-214AC (SMD) | Half the current of SS14, used in low-power applications |
directions
To test if a diode is good using a multimeter:
- Set the multimeter to diode mode (look for the diode symbol).
- Connect the red probe to the anode and the black probe to the cathode.
- Read the display:
- A good diode shows a voltage drop (typically 0.5–0.8V for silicon diodes).
- If it shows “OL” or no reading, reverse the probes.
- In reverse, a good diode shows “OL” (open circuit).
- If both directions show 0V or both show “OL”, the diode is faulty.
Rectifier Diode
肖特基二极管
For lower power consumption and higher efficiency, the rectifier diode (D1 in Figure 1) should be a Schottky diode.
- The breakdown voltage of the diode should be several volts higher than the output voltage (VBR > VOUT).
- The current handling capability should be greater than the maximum output current (IF > IOUT,max).
- The peak forward current should be greater than the peak current of the inductor (IFSM,peak > IL,peak).
alternatives: SS14 / SS34 / SS54
other more diodes
- High Power Switching and Attenuation Silicon PIN Diodes - The MMP7060 - 69 Series of PIN diodes are fast switching, low series resistance, low capacitance PIN diode chips.
diode compare
| Feature | 1N4007 | SS34 |
|---|---|---|
| Type | Standard silicon rectifier diode | Schottky barrier rectifier diode |
| Reverse Voltage (VRRM) | 1000 V max | 40 V max |
| Forward Current (IF avg) | 1 A continuous | 3 A continuous |
| Peak Surge Current (IFSM) | ~30 A | ~100 A |
| Forward Voltage Drop (VF) | ~0.7 – 1.1 V @ 1 A | ~0.2 – 0.5 V @ 3 A |
| Reverse Recovery Time (trr) | Slow (~2–30 µs) | Very fast (nanoseconds, <100 ns) |
| Power Dissipation | Higher due to VF and switching losses | Lower, very efficient |
| Frequency Use | Low frequency rectification (50/60 Hz AC) | High frequency SMPS, DC-DC converters |
| Package | Through-hole (DO-41) | Surface-mount (SMA/SMB/SMC) |
| Temperature Range | –65 to +150 °C | –55 to +150 °C |
| Typical Applications | Power supply rectifier (mains, chargers) | Buck/boost converters, freewheeling diode in switching regulators |
For low-voltage DC power paths (e.g., 5V, 12V, battery systems, USB, DC-DC converters): → SS34 is much better (low drop, higher current, efficiency).
For high-voltage AC rectification (like 220V/110V mains power supplies): → 1N4007 is safer (handles up to 1000 V).
⚡ In most modern “power-through” / series protection roles at DC (5–24 V), SS34 wins because the low voltage drop keeps the system efficient and avoids unnecessary heating.
unsort
- BYV26A, BYV26B, BYV26C, BYV26D, BYV26E == Ultra-Fast Avalanche Sinterglass Diode
MPC555LFMZP40NXP - 3300V, 90A, Silicon Carbide (SiC) Schottky Diode, 2-lead T-MAX® package.
1N5619
B140HB - 1.0A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
MICROCHIP LSM115JE3/TR13 - Diode 15V 1A Surface Mount DO-214BA
Rectifier Diode vs Schottky Diode
-
Rectifier diode: A general family; includes standard silicon rectifiers, fast recovery diodes, and Schottky diodes.
- Schottky diode: A subtype of rectifier diode, with low voltage drop and fast switching, but limited voltage rating.
✅ Conclusion
All Schottky diodes can be used for rectification, but not all rectifier diodes are Schottky.