In Reply to: recommended replacement for 1N4007 diodes.. posted by gkargreen on July 21, 2014 at 17:35:25:
UF4007s are drop in replacements for 1N4007s, which go a very long way towards lowering the amount of switching noise produced. Snub the diodes with 0.01 μF. HIGH WVDC caps. to lower the noise level further.
UF5408s are quite similar to UF4007s. The difference is 3 A. vs. 1 A.
High PIV Schottky diodes are "noiseless", but the TO220 cases may create mechanical problems in an existing unit.
BTW, a medium PIV Schottky diode in a "barrel" style case might be just what the doctor ordered, for service in the bias supply.
Eli D.
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Follow Ups
- RE: recommended replacement for 1N4007 diodes.. - Eli Duttman 19:17:20 07/21/14 (43)
- does it matter which UF4007 to get? - gkargreen 19:47:13 07/22/14 (6)
- RE: does it matter which UF4007 to get? - Eli Duttman 05:32:28 07/23/14 (5)
- RE: does it matter which UF4007 to get? - gkargreen 11:55:27 07/23/14 (2)
- RE: does it matter which UF4007 to get? - Eli Duttman 12:55:04 07/23/14 (1)
- thanks, Eli, I had heard that... - gkargreen 13:43:03 07/23/14 (0)
- RE: does it matter which UF4007 to get? - gkargreen 07:16:18 07/23/14 (0)
- RE: does it matter which UF4007 to get? - FenderLover 07:01:45 07/23/14 (0)
- TO220 Schottky - Triode_Kingdom 05:44:19 07/22/14 (27)
- RE: TO220 Schottky - Michael Samra 13:53:13 07/22/14 (26)
- Mikey... - Triode_Kingdom 08:21:41 07/23/14 (25)
- TO-263... - wheezer 09:51:44 07/25/14 (0)
- RE: Mikey... - Michael Samra 19:41:18 07/24/14 (0)
- RE: Mikey... - Cleet Torres 19:38:53 07/24/14 (5)
- RE: Mikey... - wheezer 11:04:41 07/27/14 (4)
- Wheezer, do you snub TO-220s? - Cleet Torres 20:33:21 07/30/14 (3)
- RE: Wheezer, do you snub TO-220s? - wheezer 00:08:17 07/31/14 (2)
- RE: Wheezer, do you snub TO-220s? - Cleet Torres 02:27:05 07/31/14 (1)
- RE: Wheezer, do you snub TO-220s? - wheezer 10:45:11 07/31/14 (0)
- RE: Mikey... - Eli Duttman 13:38:43 07/23/14 (16)
- Eli & Max... - Triode_Kingdom 21:16:36 07/23/14 (8)
- RE: Eli & Max... - Maxamillion 06:38:26 07/24/14 (7)
- I Actually Measured the Voltage Sharing with Caps - Maxamillion 06:47:23 07/24/14 (6)
- RE: I Actually Measured the Voltage Sharing with Caps - Triode_Kingdom 07:28:11 07/24/14 (5)
- Latest ARRL Handbook Recommends against the Resistors - Maxamillion 07:57:15 07/24/14 (4)
- RE: Latest ARRL Handbook Recommends against the Resistors - Triode_Kingdom 10:43:01 07/24/14 (3)
- More on This... - Triode_Kingdom 11:35:35 07/24/14 (2)
- RE: More on This... - Maxamillion 12:42:53 07/24/14 (1)
- RE: More on This... - Triode_Kingdom 13:27:29 07/24/14 (0)
- Actually... - Maxamillion 19:12:45 07/23/14 (0)
- Eli, would 600 piv be enough for most power supplies... - gkargreen 13:47:50 07/23/14 (5)
- RE: Eli, would 600 piv be enough for most power supplies... - Eli Duttman 17:54:26 07/23/14 (4)
- RE: Eli, would 600 piv be enough for most power supplies... - Triode_Kingdom 21:43:27 07/23/14 (3)
- thanks, I plan on using the UF4007 diodes but... - gkargreen 17:42:34 07/24/14 (2)
- Good Q for Eli - Triode_Kingdom 21:28:44 07/24/14 (1)
- RE: Good Q for Eli - Eli Duttman 09:00:55 07/25/14 (0)
- RE: recommended replacement for 1N4007 diodes.. - gkargreen 19:55:39 07/21/14 (7)
- RE: recommended replacement for 1N4007 diodes.. - Paul Joppa 20:17:06 07/21/14 (6)
- RE: recommended replacement for 1N4007 diodes.. - gkargreen 21:20:10 07/21/14 (5)
- RE: recommended replacement for 1N4007 diodes.. - Paul Joppa 18:41:50 07/22/14 (2)
- RE: recommended replacement for 1N4007 diodes.. - Eli Duttman 05:36:28 07/23/14 (1)
- RE: recommended replacement for 1N4007 diodes.. - Cleet Torres 13:04:40 07/25/14 (0)
- RE: recommended replacement for 1N4007 diodes.. - Paul Joppa 18:40:21 07/22/14 (1)
- RE: recommended replacement for 1N4007 diodes.. - gkargreen 19:45:20 07/22/14 (0)