IMB1AT110 Equivalent & Substitute Parts Reference

Part Overview

The Rohm Semiconductor IMB1AT110 is a pre-biased dual PNP bipolar junction transistor (BJT) designed for surface mount applications in the SC-74 (SOT-457) package. This device integrates pre-bias resistors, enabling simplified circuit design. It offers a maximum collector current of 100mA, a collector-emitter breakdown voltage of 50V, and includes matched resistors for each transistor. The component is categorized as "Not For New Designs," necessitating the identification of suitable alternative models for ongoing and future applications.

Substiute Parts

IMB1AT110

Rohm SemiconductorIn Stock: 743IMB1AT110 Datasheet

Current PartRFQ

RN2603(TE85L,F)

Toshiba Semiconductor and StorageIn Stock: 6833RN2603(TE85L,F) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of pre-biased dual PNP BJT transistors must be based strictly on the following key parameters: transistor type, collector current (Ic) maximum, collector-emitter voltage maximum, base and emitter resistor values (R1 and R2), DC current gain (hFE), maximum Vce saturation, collector cutoff current, power rating, mounting method, and package. All substitute parts listed share the same transistor configuration, performance parameters, compliance certifications, and mechanical footprint as the IMB1AT110.

Parameter Comparison

Engineering Selection Recommendations

The IMB1AT110 is classified as "Not For New Designs." Substitution with RN2603(TE85L,F) is supported by alignment on RoHS3 compliance, MSL rating of 1 (unlimited), and REACH unaffected status. This ensures adherence to standard environmental, quality, and reliability requirements based solely on provided parameters without the need for additional technical qualification.

Frequently Asked Questions (FAQ)

Q1: What criteria were used to determine if RN2603(TE85L,F) is a valid substitute for IMB1AT110?
A1: Substitution is based strictly on matching transistor type, collector current maximum, collector-emitter voltage maximum, resistor values, DC current gain, Vce saturation, collector cutoff current, power rating, mounting type, package, and regulatory compliance.

Q2: Are the package and footprint of RN2603(TE85L,F) directly compatible with IMB1AT110?
A2: Both parts are supplied in the SC-74 (SOT-457) surface mount package, ensuring direct mechanical compatibility for PCB applications.

Q3: Do the base and emitter resistor values match in both parts?
A3: RN2603(TE85L,F) and IMB1AT110 both feature 22kOhm for the base (R1) and emitter base (R2) resistors.

Q4: Are there differences in environmental or safety certifications between these parts?
A4: Both IMB1AT110 and RN2603(TE85L,F) are RoHS3 compliant, rated MSL 1 (unlimited), and REACH unaffected.

Q5: Should additional mechanical or electrical verification be considered beyond the provided parameters?
A5: Only the listed explicit parameters were considered in this substitution; no additional criteria were included in this reference.