component
TB34S
Public Made by Adomby adom
YFW Bridge Rectifiers, ABS. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTB34S
YFW · Bridge Rectifiers · ABS
TB34S from YFW, in a ABS. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | AC1 | passive | AC input pin (~) of the bridge; TB34S is rated 40 V VRRM, 28 V VRMS, 3 A average rectified output current. |
| 2 | AC2 | passive | AC input pin (~) of the bridge; TB34S is rated 40 V VRRM, 28 V VRMS, 3 A average rectified output current. |
| 3 | DC+ | passive | Positive rectified output (anode, +) of the bridge, carrying up to 3 A average rectified current. |
| 4 | DC- | passive | Negative rectified output (cathode, -) of the bridge, carrying up to 3 A average rectified current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | ABS |
| Category | Diodes |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM | 40 | V | 1 | |||
| Maximum RMS voltage | VRMS | 28 | V | 1 | |||
| Maximum DC Blocking Voltage | VDC | 40 | V | 1 | |||
| Average Rectified Output Current | IF(AV) | 3 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 80 | A | 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| Max Instantaneous Forward Voltage | VF | 0.55 | V | at 3 A | 1 | ||
| Maximum DC Reverse Current @TA=25°C | IR | 0.5 | μA | at rated DC blocking voltage, TA=25°C | 1 | ||
| Maximum DC Reverse Current @TA=100°C | IR | 10 | μA | at rated DC blocking voltage, TA=100°C | 1 | ||
| Operating Temperature Range | Tj | -55 | 125 | °C | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Typical Junction Capacitance | Cj | 250 | pF | Measured at 1 MHz and applied reverse voltage of 4 V DC | 1 | ||
| Typical Thermal Resistance | RθJA | 60 | °C/W | Mounted on glass epoxy PC board with 4×1.5"×1.5" (3.81×3.81 cm) copper pad | 1 |
CAD (KiCad official)
- Symbol:
TB34S - Footprint:
Diode_SMD:Diode_Bridge_Diotec_ABS - 3D model: ABS (KiCad packages3D, STEP)
- 3D model files:
tb34s-etched.step/tb34s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tb34s.step/tb34s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (3 pp, sha256
b49ba2f99ac57822, retrieved 2026-10-21, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).