After searching LTspice files exhaustively for LED models, it seemed to me that the best ones were Helmut's, i.e. this one for a GaAs LED:
*Typ RED GaAs LED: Vf=1.7V Vr=4V If=40mA trr=3uS
.MODEL Red_Led_660nm3mm D (IS=93.2P RS=42M N=3.73 BV=4 IBV=10U
+ CJO=2.97P VJ=.75 M=.333 TT=4.32U)
The LED I wish to model is the WP710A10SRC/E from Kingbright (3mm GaAs 660 nm); there are some small but (because I'm stringing a lot of 'em ;) important differences from the model above...
....namely, 1.85 typical Vf at If=20 mA typical, 30 mA max, 45 pF capacitance, 10 uA reverse current (and unfortunately, that's it from the datasheet!!).
Would someone please explain what all the parameters are between the parentheses in Helmut's model above and how I change them to better simulate the Kingbright LED? I searched for LED spice parameter's, but could not come up with any info on what IS, RS, N, BV, etc, stand for.
Very Best, Maturin