[Kenwood] 1S1555 diode equivilant?

Fri, 10 May 2002 14:57:50 -0500

Hi Paul,
The 1S1555 crosses to an ECG-177, or NTE-177
Specs:

NTE177
General Purpose Silicon Rectifier
Description:
The NTE177 is a general purpose silicon rectifier in a DO-35 case designed
for switching applications.
Absolute Maximum Ratings: Continuous Reverse Voltage, VR 150V
Peak Repetitive Reverse Voltage, VRRM 200V
Forward DC Current, IF 250mA
Average Forward Current, IO(AV) 250mA
Repetitive Peak Forward Current, IFRM 625mA
Non-Repetitive Peak Forward Current (t < 1s, TJ = +25�C), IFSM
1A
Non-Repetitive Peak Forward Current (t = 1ms, TJ = +25�C), IFSM 5A
Total Power Dissipation (TA = +25�C), Ptot 400mW
Operating Junction Temperature, TJ +175�C
Storage Temperature Range, Tstg -65� to +175�C
Maximum Thermal Resistance, Junction to Ambient, RthJA 750�C/W

Electrical Characteristics: (TJ = +25�C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Instantaneous Forward Voltage Drop VF IF = 100mA - - 1.0 V
Reverse Current IR(AV) VR = 150V - - 100 nA
VR = 500V, TJ = +150�C, 1" Leads - - 100 �A
Breakdown Voltage V(BR)R IR = 100�A 200 - - V
Diode Capacitance Cd(AV) VR = 0, f = 1MHz - 1.5 5.0 pF
Differential Forward Resistance ri(AV) IF = 10mA - 5 - Ohm
Reverse Recovery Time tr When switched from IF = 30mA to IR = 30mA, RL =
100Ohm, measured at IR = 3mA - - 50 ns

Hope this helps,
Cheers!!
de Benton wb5twc

----- Original Message -----
From: "Paul Erickson" <[email protected]>
To: "Kenwood Reflector" <[email protected]>
Sent: Friday, May 10, 2002 2:23 PM
Subject: [Kenwood] 1S1555 diode equivilant?

> A mod for the AGC in the ts940 calls for a 1S1555 diode, can anyone
> recommend an equivalent?
> --
> cheers, Paul - VA7NT (ex VE7CQK) - email: [email protected]
>
> "Those who hear not the music, think the dancers mad..."
>
> - - -
>
> Your moderator for this list is:
> Larry Wilson KE1HZ [email protected]
>
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