STMicroelectronics ESM3030DV

Overview

ESM3030DV from STMicroelectronics is a high-current NPN Darlington power module integrating an ultrafast freewheeling diode in a fully insulated ISOTOP package. It delivers 100 A continuous collector current, 300 V VCEO(sus), 0.55 °C/W Rthj-case (transistor), and supports motor control, SMPS/UPS, and DC/DC converters with accidental overload capability.

For engineers reviewing the ESM3030DV datasheet, ESM3030DV pinout, ESM3030DV application, or ESM3030DV equivalent, key selection criteria include its 150 A ICM peak current, 2.2 V VCE(sat) at 85 A/2.4 A, 330–430 A/µs diC/dt rating, UL 2500 V isolation, and low parasitic inductance for robust switching in industrial power stages.

Technical Context

This Darlington module uses a monolithic transistor-die + fast recovery diode configuration with integrated base-emitter resistor network for simplified gate drive. Its sustaining voltage (VCEO(sus) = 300 V) and dynamic voltage clamping enable snubberless operation in inductive switching circuits up to 25 µH.

The device operates with dual thermal paths-0.55 °C/W for the transistor and 1.2 °C/W for the diode-and features a 0.05 °C/W Rthc-h with conductive grease, enabling high-power density mounting on shared heatsinks while maintaining Tj ≤ 150 °C under full load.

Key Specifications

Pinout & Package

The ESM3030DV uses the ISOTOP package (P093A mechanical outline), a fully insulated, stud-mount power module with four terminals: C1, C2 (collector), E (emitter), and B (base). The package provides creepage/clearance compliant with UL 2500 V isolation and enables direct bolt-down mounting without additional insulators.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-current Darlington power module applications.

Compared with IXGN100N30A3 and MJD127G, the ESM3030DV uniquely combines UL-certified insulation, integrated ultrafast diode, and 300 V sustaining voltage in a single ISOTOP module-enabling snubberless, space-constrained industrial power stages that neither alternative can replicate.

Availability

ESM3030DV is available at Aetrix Electronics and suitable for motor control, SMPS & UPS, and DC/DC & DC/AC converters requiring stable component supply, long-term industrial lifecycle support, and certified isolation performance.

Supply support for ESM3030DV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in power, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

The ESM3030DV belongs to ST's high-power bipolar module family, engineered specifically for ruggedized industrial switching applications where reliability under accidental overload, thermal efficiency, and system-level insulation integrity are non-negotiable.

FAQ

What is the maximum recommended heatsink temperature for continuous 100 A operation?

At 100 A IC and 2.2 V VCE(sat), power dissipation is ~220 W. With Rthj-case = 0.55 °C/W and max Tj = 150 °C, the case temperature must stay ≤ 35 °C. Using Rthc-h = 0.05 °C/W, the heatsink must be maintained at ≤ 30 °C ambient or actively cooled-passive heatsinks require ≥ 0.6 °C/W total thermal resistance.

Can the ESM3030DV operate without a snubber circuit in inductive switching?

Yes-its 300 V VCEO(sus) rating and specified reverse-biased SOA allow snubberless operation with L ≤ 25 mH and VCC ≤ 300 V. Test data confirms stable switching at diC/dt = 430 A/µs with VCE(3 µs) ≤ 6 V, provided base drive IB1 ≥ 0.9 A and clamp voltage is set to 300 V.

How is the integrated diode electrically isolated from the transistor section?

The diode shares the same silicon substrate but is physically separated by deep junction isolation and connected only through the common emitter terminal (E). Its cathode is tied internally to the transistor emitter, and anode is accessible via the C1/C2 terminals-no separate diode pins exist. This monolithic integration ensures matched thermal behavior and eliminates bond-wire inductance.

What base drive current is required to achieve full 85 A collector current at 100 °C junction temperature?

Per datasheet, hFE = 300 at IC = 85 A, VCE = 5 V, so nominal IB = 283 mA. However, due to hFE degradation at Tj = 100 °C and saturation requirements, the datasheet specifies IB = 2.4 A to guarantee VCE(sat) ≤ 1.8 V. This overdrive ensures reliable Darlington turn-on and mitigates second breakdown risk under transient loads.