relay delay for 5 minutes

6 months ago 95
  • Description
  • Documents
  • BOM
  • Attachments
  • Members
  • Comments

Description

On delay relay. Based on transformerless power supplies, NE555 timer and 12 volt relay.

The delay time is adjusted using R3 & C3 according to the formula: T = 1.1 R3 C3 = 351560 (5.8 min)

Documents

Relay delay for 5 minutes

Relay delay for 5 min - PCB

BOM

ID Name Designator Footprint Quantity BOM_Manufacturer Part
1 47uF C3 CAP-TH_BD6.3-P2.50-D1.0-FD 1 EEUFR1H470
2 NE555P U2 DIP-8_L9.8-W6.6-P2.54-LS7.6-BL 1 NE555P
3 1MoM R1 RES-TH_D1.00-L10.50-W3.60-PITCH15.00 1 MFR0S2F8202A50
4 DB107-BP D1 DIO-BG-TH_DB-1 1 DB107-BP
5 6.8MoM R3 1206 1 1206W4J0000T5E
6 FUSE 0.315A F1 5X20-BLX-A 1 5x20 BLX-Atype Fuse holder XC-7
7 1N4007_C402311 D2 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 1 1N4007
8 1N4007 D4 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 1 1N4007
9 DG301-5.0-3P CN1 SCREW_TERMINAL_DG301-5.0-03P 1 DG301-5.0-03P-12-00A(H)
10 10mF/250v C2 CAP-TH_BD10.0-P5.00-D1.0-FD 1 ULR687M1EG1BRRX0CR
11 1uF C1 CAP-TH_L29.0-W15.5-P27.50-D1.4 1 225J 630V
12 1N5349BRLG D3 DO-27_BD3.5-L8.6-P12.60-D1.3-RD 1 1N5349BRLG
13 DG300-5.0-2P P1 DG300-5.0-02 1 DG300-5.0-2P
14 SRD-12VDC-SL-C RELAY1 RELAY-TH_SRD-XXVDC-XL-C 1 SRD-12VDC-SL-C

Attachments

Filename Download
IMG_20200108_192955.jpg
IMG_20200108_193002.jpg
IMG_20200108_193008.jpg
IMG_20200108_193016.jpg
IMG_20200108_193023.jpg
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