The principal models of the intrinsic base resistance in single-base-stripe bipolar transistors are compared by means of computer program. A total base resistance model is proposed which includes both intrinsic and extrinsic resistances R(bi) and R(be) respectively. This model can be implemented in PSPICE simulator. Finally, d.c., a.c. and transient analyses are carried out after the implementation of the new model in PSPICE in order to compare it with the initial PSPICE model.