HEC4528BT,118 Equivalent & Substitute Parts

Part Overview

The HEC4528BT,118 is a monostable multivibrator logic integrated circuit manufactured by NXP USA Inc. in the 4000B series. This component functions as a timing and pulse-generation device with two independent circuits, operating across a supply voltage range of 4.5 V to 15.5 V. The device is actively produced and maintains full RoHS3 compliance with unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to address inventory availability, packaging preferences, or supply chain requirements while maintaining functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

HEC4528BT,118

NXP USA Inc.In Stock: 1047HEC4528BT,118 Datasheet

Current PartRFQ

MC14528BDG

onsemiIn Stock: 880MC14528BDG Datasheet

MFR RecommendedRFQ

MC14528BDR2G

onsemiIn Stock: 2505MC14528BDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HEC4528BT,118 are qualified based on the following criteria:

• Logic Type: Monostable multivibrator function
• Independent Circuits: 2 circuits per device
• Series Compatibility: 4000B series
• Package Compatibility: 16-SOIC (0.154", 3.90mm Width) surface mount
• Supply Voltage Range: Overlap or broader voltage tolerance
• RoHS Compliance: ROHS3 Compliant status
• Product Status: Active manufacturing status

The substitute parts MC14528BDG and MC14528BDR2G, both manufactured by onsemi, meet these criteria. Both are monostable multivibrators with two independent circuits in the 4000B series, housed in 16-SOIC packages with surface mount configuration. The primary differences relate to packaging format (Tube versus Tape & Reel) and propagation delay specification, which do not prevent functional substitution within the allowed electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both MC14528BDG and MC14528BDR2G are qualified substitutes for the HEC4528BT,118 based on functional equivalence within the 4000B monostable multivibrator family. All three parts maintain Active product status and full ROHS3 compliance with unlimited moisture sensitivity rating.

The onsemi MC14528 variants provide a broader supply voltage range (3 V to 18 V) compared to the NXP HEC4528 (4.5 V to 15.5 V), offering greater flexibility in applications operating at lower supply voltages. The propagation delay difference (35 ns versus 90 ns) reflects manufacturing process variations between suppliers but does not prevent functional substitution in standard timing applications.

Selection between MC14528BDG (Tube packaging) and MC14528BDR2G (Tape & Reel packaging) depends on procurement and assembly requirements. Both parts are electrically and mechanically identical, differing only in packaging format and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can MC14528BDG or MC14528BDR2G be used as direct replacements for HEC4528BT,118?

A: Yes. Both onsemi parts are functionally equivalent monostable multivibrators with identical circuit count, package type, and pin configuration. They operate within compatible supply voltage ranges and maintain equivalent compliance certifications.

Q: What is the significance of the propagation delay difference (35 ns versus 90 ns)?

A: Propagation delay represents the time required for an output signal to respond to an input change. The HEC4528BT,118 specifies 35 ns, while the MC14528 variants specify 90 ns. This difference reflects manufacturing process variations between NXP and onsemi. For most standard timing and pulse-generation applications, both specifications are functionally acceptable. Applications with strict timing requirements below 90 ns should evaluate the specific circuit design.

Q: What is the difference between MC14528BDG and MC14528BDR2G?

A: Both parts are electrically and mechanically identical. MC14528BDG is supplied in Tube packaging, while MC14528BDR2G is supplied in Tape & Reel (TR) format. Selection depends on procurement volume, assembly equipment compatibility, and inventory management preferences.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 16-SOIC (0.154", 3.90mm Width) surface mount package with identical pin assignments, enabling direct board-level substitution without layout modifications.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. MC14528BDG and MC14528BDR2G are both ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the compliance profile of the HEC4528BT,118.