component

TB34S

Public Made by Adom

by adom

YFW Bridge Rectifiers, ABS. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 7d ago
viewers tb34s: viewers · Ray 7d ago
package.json Publish 0.1.0 · Ray 7d ago
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README.md Publish 0.1.0 · Ray 7d ago
tb34s-etched.glb Publish 0.1.0 · Ray 7d ago
tb34s-etched.step tb34s: factory component page (tier=lcsc) · Ray 7d ago
tb34s-hero.glb tb34s: hero GLB from the etched model (keeps the MPN mark) · Ray 7d ago
tb34s-hero.overlay.json Publish 0.1.0 · Ray 7d ago
tb34s.glb Publish 0.1.0 · Ray 7d ago
tb34s.kicad_mod Publish 0.1.0 · Ray 7d ago
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tb34s.lbr Publish 0.1.0 · Ray 7d ago
tb34s.step Publish 0.1.0 · Ray 7d ago

TB34S

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tb34s.step / tb34s.glb are 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).

Datasheet PDF