BETAReverse peak limit40 V · absolute maximum
Surface-mount Schottky rectifier
SS34 Specifications
Review SS34 electrical specifications, operating conditions and package details.
Key specifications
The Schottky junction provides low forward voltage without the stored minority charge of a conventional PN rectifier. Junction capacitance and reverse leakage remain important.
Average current3 A · lead-temperature derating
Maximum drop0.5 V · 3 A pulse test
Junction maximum150 °C · absolute limit
Package details
SS34-E3 · SMC
| Property | Details |
|---|---|
| Manufacturer | Vishay General Semiconductor |
| Part number | SS34-E3 |
| Package | SMC |
| Connections | 2 pins |
| Mounting | Surface mount |
| Lead pitch | 6.41 mm · land centers |
| Package code | DO-214AB |
| Thermal reference | 150°C junction maximum; current derates with lead temperature |
Device and polarity
Vishay commercial SS34-E3
Manufacturer specifications 3 parameters
Scroll sideways to see all columns.
| Parameter | Value | Conditions / notes |
|---|---|---|
| Package / marking | SMC / S4 | DO-214AB; cathode band |
| Footprint convention | K1 / A2 | Cathode left; anode right |
| Surface finish | Matte tin | Silver plated contacts |
No specifications match. Try a parameter name or a unit.
Package and ratings refer to this specific manufacturer.
Absolute maximum ratings
SS34 column; check mounting and derating
Manufacturer specifications 6 parameters
Scroll sideways to see all columns.
| Parameter | Value | Conditions / notes |
|---|---|---|
| Reverse peak / DC | 40 V | VRRM / VDC |
| RMS reverse | 28 V | VRMS |
| Average current | 3 A | Lead-temperature derating curve |
| Surge current | 100 A | Single 8.3 ms half sine on rated load |
| Avalanche energy | 20 mJ | 25°C; 2 A; 10 mH; nonrepetitive |
| Junction / storage | −55 to +150°C | Absolute limits |
No specifications match. Try a parameter name or a unit.
Pulse ratings are not continuous operating ratings.
Electrical characteristics
Selected SS34 column
Manufacturer specifications 4 parameters
Scroll sideways to see all columns.
| Parameter | Value | Conditions / notes |
|---|---|---|
| Forward drop | 0.5 V maximum | 3 A; 300 µs pulse, 1% duty |
| Leakage at 25°C | 0.5 mA maximum | Rated blocking voltage |
| Leakage at 100°C | 20 mA maximum | Rated blocking voltage |
| RθJA / RθJL | 55 / 17°C/W typical | 14 × 14 mm copper pad area |
No specifications match. Try a parameter name or a unit.
Thermal performance depends on the actual PCB.
Package and lands
SMC drawing and authored mounting
Manufacturer specifications 5 parameters
Scroll sideways to see all columns.
| Parameter | Value | Conditions / notes |
|---|---|---|
| Body length / width | 6.60–7.11 / 5.59–6.22 mm | Molded outline |
| Height | 2.06–2.62 mm | Package drawing |
| Overall length | 7.75–8.13 mm | Including contacts |
| Authored lands | 1.72 × 3.20 mm | 6.41 mm centers |
| Inner gap | 4.69 mm | Cathode left; anode right |
No specifications match. Try a parameter name or a unit.
Confirm solder process and fabrication tolerances.
Polarity-protection example
Calculated, not measured
Manufacturer specifications 6 parameters
Scroll sideways to see all columns.
| Parameter | Value | Conditions / notes |
|---|---|---|
| Source / load | 5 V DC / 100 Ω | Isolated current-limited source |
| Assumed diode drop | 0.4 V | Teaching approximation |
| Output voltage | 4.6 V | 5 − 0.4 |
| Forward current | 46 mA | 4.6 / 100 |
| Load dissipation | 211.6 mW | Use 0.5 W or greater here |
| Diode dissipation | 18.4 mW | 0.4 × 0.046 |
No specifications match. Try a parameter name or a unit.
Measure actual forward voltage and check worst-case supply, load and temperature.
Connections by function
Select a pin for its function, connection guidance and electrical notes.