Universal Motor Speed Control and Lamp Dimming Using YFW DB4 TB Silicon Bidirectional Trigger Diodes
Key Attributes
Model Number:
DB4 TB
Product Custom Attributes
Breakover Voltage VBO(Range Value):
35V~45V
Breakover Current (Ibo):
50uA
Repetitive Peak On-state Current (Itrm):
2A
Rise Time(tr):
2us
Dynamic Breakover Voltage:
5V
Leak Current:
10uA
Breakover Voltage VBO(Typ):
-
Mfr. Part #:
DB4 TB
Package:
DO-35
Product Description
Product Overview
Silicon Bidirectional Trigger Diodes (Diacs) designed for thyristor phase control applications. These diacs are suitable for lamp-dimming, universal-motor speed controls, and heat control circuits.
Product Attributes
- Brand: Y FW
- Origin: GuangDong Youfeng Microelectronics Co,Ltd.
- Material: Silicon
- Case: DO-35
- Color: Black
Technical Specifications
| Parameter | Symbol | DB3 | DB4 | DC34 | Unit | Notes | |
| Breakover Voltage | VBO | 28 | 35 | 30 | V | at C = 22 nF, see diagram 1 | |
| Breakover Voltage Symmetry | 3 | V | at C = 22 nF, see diagram 1 [|+VBO|-|-VBO|] | ||||
| Dynamic Breakover Voltage | | △V ± | | 5 | - | V | at △I = [IBO to IF = 10 mA] | ||
| Output Voltage | VO | 5 | - | V | See diagram 2 | ||
| Breakover Current | IBO | 50 | µA | at C = 22 nF | |||
| Leakage Current | IB | 10 | µA | at VB = 0.5 VBO max | |||
| Rise Time | tr | 2 | µs | See diagram 3 | |||
Absolute Maximum Ratings
| Parameter | Symbol | Value | Unit | Condition |
| Power Dissipation | Ptot | 150 | mW | Ta = 65 OC |
| Repetitive Peak On-state Current | ITRM | 2 | A | tp = 20 µs, f = 100 Hz |
| Operating Junction and Storage Temperature Range | Tj, Tstg | - 40 to + 125 | OC |
2410121545_YFW-DB4-TB_C20623335.pdf
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