DMMT5551-7 Equivalent & Substitute Parts

Part Overview

The DMMT5551-7 is a dual matched pair NPN bipolar junction transistor (BJT) array manufactured by Diodes Incorporated in a surface mount SOT-26 package. This component is designed for applications requiring matched transistor pairs with 160V collector-emitter breakdown voltage and 200mA maximum collector current. The device is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing procurement and design continuity.

Substiute Parts

DMMT5551-7

Diodes IncorporatedIn Stock: 1100DMMT5551-7 Datasheet

Current PartRFQ

DMMT5551-7-F

Diodes IncorporatedIn Stock: 9327DMMT5551-7-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMMT5551-7 is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute part DMMT5551-7-F maintains identical electrical specifications including collector current rating (200mA), breakdown voltage (160V), saturation voltage characteristics, current gain, power dissipation (300mW), and transition frequency (300MHz). Both parts share the same base product number (DMMT5551), transistor configuration (dual matched pair NPN), package type (SOT-23-6), and operating temperature range (-55°C to 150°C).

The key differentiating factor between the main part and its substitute is packaging format and product status. The DMMT5551-7-F is supplied in Tape & Reel (TR) format with active product status, whereas the DMMT5551-7 is discontinued. Both parts are RoHS compliant or unaffected by REACH regulations and carry identical ECCN and HTSUS classifications.

Parameter Comparison

Engineering Selection Recommendations

The DMMT5551-7-F is the direct substitute for the discontinued DMMT5551-7. All electrical and mechanical parameters are identical, ensuring pin-for-pin and functional compatibility in existing circuit designs. The primary advantage of the DMMT5551-7-F is its active product status with significantly higher inventory availability (9300 pieces versus 1074 pieces for the original part).

For applications requiring RoHS3 compliance, the DMMT5551-7-F is the appropriate selection. The original DMMT5551-7 is RoHS non-compliant, whereas the substitute part meets ROHS3 standards. Both parts maintain identical REACH unaffected status and EAR99 export classification.

The DMMT5551-7-F is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. This packaging format does not affect electrical performance or circuit functionality compared to bulk packaging of the original part.

Frequently Asked Questions (FAQ)

Q: Can DMMT5551-7-F be used as a direct replacement for DMMT5551-7 in existing designs?

A: Yes. The DMMT5551-7-F is electrically and mechanically identical to the DMMT5551-7. All electrical parameters, including collector current rating, breakdown voltage, saturation characteristics, current gain, power dissipation, and transition frequency are identical. The SOT-23-6 package pinout and footprint are unchanged.

Q: What is the difference between the DMMT5551-7 and DMMT5551-7-F?

A: The primary differences are packaging format and product status. The DMMT5551-7-F is supplied in Tape & Reel format and has active product status, while the DMMT5551-7 is discontinued. The DMMT5551-7-F also meets ROHS3 compliance standards, whereas the original part is RoHS non-compliant. All electrical specifications remain identical.

Q: Does the Tape & Reel packaging of DMMT5551-7-F affect circuit performance?

A: No. Tape & Reel packaging is a supply format used for automated assembly and does not affect the electrical characteristics or performance of the transistor. The component itself is identical regardless of packaging format.

Q: Are there any compliance differences between these parts?

A: Yes. The DMMT5551-7-F meets ROHS3 compliance standards, while the DMMT5551-7 is RoHS non-compliant. Both parts maintain identical REACH unaffected status. For applications requiring RoHS3 compliance, the DMMT5551-7-F is the appropriate selection.

Q: What is the operating temperature range for both parts?

A: Both the DMMT5551-7 and DMMT5551-7-F operate across the identical temperature range of -55°C to 150°C (junction temperature).

Q: Are the moisture sensitivity levels the same?

A: Yes. Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.