ST1803DHI High Voltage Fast-Switching NPN Power Transistor - New Series - Enhanced Performance

Q: What are the main features of the ST1803DHI transistor package?

It is a fully insulated ISOWATT218 package designed for easy mounting and includes an integrated freewheeling diode, targeting enhanced performance in a new series.

Q: What maximum voltage and current ratings are specified?

VCBO is specified up to 1500 V, VCEO up to 600 V, and the collector current IC is rated at 10 A, with a collector peak current of 15 A for short pulses.

Q: How do the document’s switching characteristics relate to inductive loads?

The document provides storage and fall times and references an inductive load switching test circuit (Figure 1), with pulsed test conditions and specified timing values for switching behavior.

Oct 12, 2026

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ST1803DHI is a high-voltage fast-switching NPN power transistor in a fully insulated ISOWATT218 package with an integrated freewheeling diode, designed for easy mounting. Manufactured using Diffused Collector technology, it supports stable operation against base-drive circuit variations and provides very low worst-case dissipation. Key electrical ratings include VCBO up to 1500 V and thermal limits up to TJ 150°C, with DC current gain and switching characteristics specified for inductive-load tests. Applications include horizontal deflection for color TV.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages6

Reading Time15 min

AccessFree to download

Overview

Key features

Applications

Electrical characteristics

Absolute maximum ratings

Electrical characteristics

Switching and timing

Thermal data

Thermal resistance

Mechanical data

Package dimensions and mounting notes

Disclaimers

􀁛 ST1803DHI HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR ■ NEW SERIES, ENHANCHED PERFORMANCE ■ FULLY INSULATED PACKAGE (U. L. COMPLIANT) FOR EASY MOUNTING INTEGRATED FREE WHEELING DIODE ■ ■ HIGH VOLTAGE CAPABILITY (> 1500 V) HIGH SWITCHING SPEED ■ TIGTHER hfe CONTROL ■ IMPROVED RUGGEDNESS ■ APPLICATIONS: HORIZONTAL DEFLECTION FOR COLOR TV ■ DESCRIPTION The ST1803DHI is manufactured using Diffused Collector technology for more stable operation Vs base drive circuit variations resulting in very low worst case dissipation. 3 21 ISOWATT218 INTERNAL SCHEMATIC DIAGRAM RBE =20 Ω Typ. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VCBO Collector-Base Voltage (IE = 0) 1500 V VCEO Collector-Emitter Voltage (IB = 0) 600 V VEBO Emitter-Base Voltage (IC = 0) 7 V IC Collector Current 10 A I CM Collector Peak Current (tp < 5 ms) 15 A IB Base Current 4 A Pt ot Total Dissipation at Tc = 25 oC 50 W Vi so l Insulation Withstand Voltage (RMS) from All 2500 V Three Leads to Exernal Heatsink Tstg Storage Temperature -65 to 150 oC Tj Max . Operating Junction Temperature 150 oC April 2002 1/6 ST1803DHI THERMAL DATA Rthj-case Thermal Resistance Junction-case Max 2.5 oC/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min . Typ . Max. Unit ICES Collector Cut-off VCE = 1500 V 1 mA Current (V BE = 0) VCE = 1500 V Tj = 125 oC 2 mA IEBO Emitter Cut-off Current VEB = 4 V 130 400 mA (IC = 0) V (BR)EBO Emitter-Base IE = 700 mA 7 V Breakdown Voltage (IC = 0) VCE(sat )∗ Collector-Emitter IC = 4 A IB = 0.8 A 3 5 V Saturation Voltage IC = 4 A IB = 1 . 2 A 1.5 V V BE(sat)∗ Base-Emitter IC = 4 A IB = 0.8 A 1.2 V Saturation Voltage h FE∗ DC Current Gain IC = 1 A VCE = 5 V 10 15 20 IC = 4 . 5 A VCE = 1 V 5 IC = 4 . 5 A VCE = 5 V 5 9 VF Diode Forward Voltage IF = 5 A 1.5 2 V INDUCTIVE LOAD IC = 4 A IBon (END) = 0.8 A ts Storage Time LB = 5 µH V BB = -2 . 5 V 2.7 4 µs tf Fall Time f = 16 KHz (see figure 1) 0.3 0.6 µs ∗ Pulsed: Pulse duration = 300 µs, duty cycle 1.5 % Safe Operating Area Thermal Impedance 2/6 ST1803DHI Derating Curve Collector Emitter Saturation Voltage DC Current Gain Output Characteristics Base Emitter Saturation Voltage DC Current Gain 3/6 ST1803DHI Power Losses Switching Time Inductive Load Reverse Biased SOA Figure 1: Inductive Load Switching Test Circuit. 4/6 ST1803DHI ISOWATT218 NARROW LEADS MECHANICAL DATA DIM. A C D D1 E F F2 F3 F5 G H L L1 L2 L3 L4 L5 L6 N R DIA MIN. 5.35 3.30 2.90 1.88 0.75 0.75 1.50 1.90 10.80 15.80 20.80 19.10 22.80 40.50 4.85 20.25 2.1 3.5 mm TYP. 9 4.6 MAX. 5.65 3.80 3.10 2.08 0.95 0.95 1.70 2.10 1.10 11.20 16.20 21.20 19.90 23.60 42.50 5.25 20.75 2.3 3.7 MIN. 0.211 0.130 0.114 0.074 0.030 0.030 0.059 0.075 0.425 0.622 0.819 0.752 0.898 1.594 0.191 0.797 0.083 0.138 inch TYP. 0.354 0.181 MAX. 0.222 0.150 0.122 0.082 0.037 0.037 0.067 0.083 0.043 0.441 0.638 0.835 0.783 0.929 1.673 0.207 0.817 0.091 0.146 -Weight : 4 .9 g (typ. ) - Maximum Torque (applied to mounting flange) Recommended: 0 .8 Nm; Maximum: 1 Nm -The side of the dissipator must be flat within 80 µm P025C/B 5/6 ST1803DHI Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life suppo

FAQs

What are the main features of the ST1803DHI transistor package?

It is a fully insulated ISOWATT218 package designed for easy mounting and includes an integrated freewheeling diode, targeting enhanced performance in a new series.

What maximum voltage and current ratings are specified?

VCBO is specified up to 1500 V, VCEO up to 600 V, and the collector current IC is rated at 10 A, with a collector peak current of 15 A for short pulses.

How do the document’s switching characteristics relate to inductive loads?

The document provides storage and fall times and references an inductive load switching test circuit (Figure 1), with pulsed test conditions and specified timing values for switching behavior.

Oct 12, 2026

Upload by Terk