2N1489 Overview
2.33 C TO-33 (TO-204AA) THERMAL CHARACTERISTICS Characteristics , Junction-to-Case 1) Derate linearly @ 0.429 W/0C for TC > 250C 0 Unit C/W See Appendix A for Package Outline (TC = 250C unless otherwise noted) Characteristics Symbol Min. RC = 7.8 Ω (2) Pulse Test: Pulse Width = 300µs, Duty Cycle ≤ 2.0%.
