MJD117T4 PNP Darlington Transistor Equivalent & Substitute Parts

Part Overview

The MJD117T4 is a PNP Darlington bipolar junction transistor manufactured by STMicroelectronics, rated for 100 V collector-emitter breakdown voltage and 2 A maximum collector current. This surface mount device in DPAK packaging is designed for general-purpose switching and amplification applications requiring moderate power dissipation and high current gain characteristics.

The MJD117T4 maintains active product status with 19,400 pieces in current inventory. Substitute parts are identified based on electrical parameter equivalence and mechanical compatibility within the DPAK package family. Alternative sources and packaging formats are available through equivalent part numbers from onsemi.

Substiute Parts

MJD117T4

STMicroelectronicsIn Stock: 19419MJD117T4 Datasheet

Current PartRFQ

MJD117G

onsemiIn Stock: 1316MJD117G Datasheet

DirectRFQ

MJD117T4G

onsemiIn Stock: 17109MJD117T4G Datasheet

DirectRFQ

NJVMJD117T4G

onsemiIn Stock: 20374NJVMJD117T4G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MJD117T4 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: PNP - Darlington configuration
• Current - Collector (Ic) Max: 2 A
• Voltage - Collector Emitter Breakdown (Max): 100 V
• Vce Saturation (Max) @ Ib, Ic: 3 V @ 40 mA, 4 A
• Current - Collector Cutoff (Max): 20 µA
• DC Current Gain (hFE) Min @ Ic, Vce: 1000 @ 2 A, 3 V
• Frequency - Transition: 25 MHz
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts meet these core electrical specifications and package requirements. Variations in maximum power dissipation rating and operating temperature range do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): MJD117T4G (onsemi) is the recommended substitute for new designs and production applications. This part maintains active product status with 17,041 pieces in inventory, identical electrical specifications to the MJD117T4, and equivalent ROHS3 compliance and MSL rating. The part is supplied in Cut Tape (CT) & Digi-Reel® packaging, suitable for automated assembly processes.

Secondary Selection (Active Status, Alternative Packaging): MJD117G (onsemi) provides electrical equivalence with active product status and 1,280 pieces in inventory. This part is supplied in Tube packaging rather than Cut Tape format. Selection of this part depends on packaging requirements and assembly line compatibility.

Obsolete Status: NJVMJD117T4G (onsemi) is classified as obsolete product status. Although 20,300 pieces remain in inventory and electrical parameters are equivalent, this part number should not be selected for new designs or long-term production commitments.

Compliance Considerations: All active substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original MJD117T4 specifications.

Frequently Asked Questions (FAQ)

Q: Can MJD117T4G be used as a direct replacement for MJD117T4?

A: Yes. MJD117T4G meets all critical electrical parameters including collector current (2 A), collector-emitter breakdown voltage (100 V), saturation voltage, current gain, and transition frequency. Both parts use identical TO-252-3 DPAK packaging and maintain equivalent compliance certifications.

Q: What is the difference between MJD117G and MJD117T4G?

A: Both parts are electrically equivalent with identical electrical specifications. The primary difference is packaging format: MJD117G is supplied in Tube packaging, while MJD117T4G is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly equipment compatibility and production volume requirements.

Q: Why is NJVMJD117T4G listed as obsolete?

A: NJVMJD117T4G carries obsolete product status designation. Although inventory remains available and electrical specifications are equivalent to active parts, this part number should not be selected for new designs or applications requiring long-term component availability.

Q: Are there any operating temperature differences between substitute parts?

A: The MJD117T4 specifies maximum operating temperature of 150°C (TJ). The onsemi substitute parts (MJD117G, MJD117T4G, NJVMJD117T4G) specify operating temperature range of -65°C to 150°C (TJ). This extended lower temperature specification does not affect substitution compatibility for applications within the MJD117T4 temperature range.

Q: Do all substitute parts have the same power dissipation rating?

A: The MJD117T4 specifies maximum power of 20 W. The onsemi substitute parts specify maximum power of 1.75 W. Both ratings are provided specifications and do not affect electrical parameter equivalence. Application power requirements must be evaluated against the specific part's power rating.

Q: Are all parts ROHS3 compliant?

A: Yes. The MJD117T4 and all identified substitute parts (MJD117G, MJD117T4G, NJVMJD117T4G) are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.