2SB1182-Q-TP Equivalent & Substitute Parts

Part Overview

The 2SB1182-Q-TP is a Surface Mount PNP Bipolar Junction Transistor manufactured by Micro Commercial Co, housed in a DPAK (TO-252-3) package. This component is rated for 32V collector-emitter breakdown voltage and 2A maximum collector current, with a maximum power dissipation of 1.5W and transition frequency of 100MHz. The part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity.

Substiute Parts

2SB1182-Q-TP

Micro Commercial CoIn Stock: 12412SB1182-Q-TP Datasheet

Current PartRFQ

2SB1184-Q-TP

Micro Commercial CoIn Stock: 9342SB1184-Q-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SB1182-Q-TP is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Transistor Type: PNP (functional polarity requirement)
• Package / Case: TO-252-3, DPAK (mechanical and thermal interface requirement)
• Mounting Type: Surface Mount (assembly process compatibility)
• Operating Temperature: 150°C (TJ) minimum (thermal operating range)

Electrical Performance Criteria:

• Current - Collector (Ic) Max: Must equal or exceed 2A
• Voltage - Collector Emitter Breakdown (Max): Must equal or exceed 32V
• DC Current Gain (hFE) Min: Must equal or exceed 82 @ 500mA, 3V
• Vce Saturation: Must be compatible with circuit switching requirements

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

The 2SB1184-Q-TP meets all mandatory compatibility criteria and exceeds electrical performance specifications, qualifying it as a direct substitute for the obsolete 2SB1182-Q-TP.

Parameter Comparison

Engineering Selection Recommendations

2SB1184-Q-TP as Primary Substitute:

The 2SB1184-Q-TP is the qualified substitute for the obsolete 2SB1182-Q-TP based on the following engineering factors:

1. Product Status: The 2SB1184-Q-TP maintains Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete 2SB1182-Q-TP.

2. Package Compatibility: Both components utilize identical TO-252-3 DPAK packaging with Surface Mount configuration, enabling direct PCB layout compatibility without redesign.

3. Electrical Specification Alignment: The 2SB1184-Q-TP meets or exceeds all critical electrical parameters of the 2SB1182-Q-TP:

   • Collector current rating increased from 2A to 3A
   • Collector-emitter breakdown voltage increased from 32V to 50V
   • DC current gain maintained at 82 minimum
   • Collector cutoff current identical at 1µA

4. Compliance Certification: Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, satisfying regulatory and manufacturing process requirements.

5. Thermal Characteristics: Operating temperature rating of 150°C (TJ) is identical, maintaining thermal design margins.

Design Consideration: The 2SB1184-Q-TP exhibits higher Vce saturation (1V versus 800mV) and lower transition frequency (70MHz versus 100MHz). Applications requiring the original 100MHz transition frequency or 800mV saturation voltage specification must evaluate circuit performance impact before substitution.

Frequently Asked Questions (FAQ)

Q: Can the 2SB1184-Q-TP directly replace the 2SB1182-Q-TP without PCB modification?

A: Yes. Both components use identical TO-252-3 DPAK packaging with Surface Mount configuration. Pin assignments and mechanical footprints are compatible, requiring no PCB layout changes.

Q: What are the key differences between these two transistors?

A: The 2SB1184-Q-TP provides higher current rating (3A versus 2A), higher voltage rating (50V versus 32V), and lower transition frequency (70MHz versus 100MHz). Vce saturation is higher at 1V compared to 800mV. All other electrical parameters remain equivalent.

Q: Is the 2SB1184-Q-TP suitable for high-frequency switching applications?

A: The 2SB1184-Q-TP operates at 70MHz transition frequency, which is lower than the original 2SB1182-Q-TP at 100MHz. Applications requiring operation above 70MHz must evaluate frequency performance impact on circuit function.

Q: Are there compliance or supply chain advantages to using the 2SB1184-Q-TP?

A: Yes. The 2SB1184-Q-TP maintains Active product status with 828 units in stock, compared to the Obsolete 2SB1182-Q-TP. Both components are ROHS3 compliant and MSL 1 rated, meeting current regulatory requirements.

Q: What is the maximum power dissipation difference between these parts?

A: The 2SB1182-Q-TP is rated for 1.5W maximum power dissipation, while the 2SB1184-Q-TP is rated for 1W. Thermal design calculations must account for this 0.5W reduction in power handling capability.

Q: Can the 2SB1184-Q-TP be used in applications originally designed for 32V operation?

A: Yes. The 2SB1184-Q-TP is rated for 50V collector-emitter breakdown voltage, exceeding the 32V requirement. This provides additional voltage margin for circuit protection and reliability.

Q: Are there any moisture sensitivity or storage differences between these components?

A: No. Both components are rated MSL 1 (Unlimited), indicating identical moisture sensitivity levels and storage requirements. No special handling or baking procedures are required prior to assembly.