2SB1182-R-TP Equivalent & Substitute Parts

Part Overview

The 2SB1182-R-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 currently classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity.

Substiute Parts

2SB1182-R-TP

Micro Commercial CoIn Stock: 11492SB1182-R-TP Datasheet

Current PartRFQ

2SB1184-R-TP

Micro Commercial CoIn Stock: 8662SB1184-R-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Compatibility Criteria:

• Transistor Type: PNP (must match)
• Package / Case: TO-252-3, DPAK (must match for mechanical and thermal compatibility)
• Mounting Type: Surface Mount (must match)
• Operating Temperature: 150°C (TJ) (must match or exceed)
• RoHS Status: ROHS3 Compliant (must match for regulatory compliance)
• Moisture Sensitivity Level: 1 (Unlimited) (must match or be less restrictive)

Allowable Parameter Ranges for Substitution:

• Current - Collector (Ic) Max: Must be equal to or greater than 2A
• Voltage - Collector Emitter Breakdown (Max): Must be equal to or greater than 32V
• Vce Saturation (Max): Must be equal to or lower (better performance)
• DC Current Gain (hFE) Min: Must be equal to or greater than 82
• Power - Max: Must be equal to or greater than 1.5W
• Frequency - Transition: Must be equal to or greater than 100MHz

The 2SB1184-R-TP meets all mandatory compatibility criteria and satisfies the allowable parameter ranges, qualifying it as a direct substitute for the obsolete 2SB1182-R-TP.

Parameter Comparison

Engineering Selection Recommendations

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

Regulatory and Compliance Alignment: Both components maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL) ratings, ensuring regulatory continuity in manufacturing and supply chain operations.

Product Status: The 2SB1184-R-TP maintains active product status with confirmed inventory availability (756 Pcs), whereas the 2SB1182-R-TP is obsolete. This transition ensures long-term procurement viability and manufacturing support.

Electrical Performance: The 2SB1184-R-TP provides enhanced voltage rating (50V vs. 32V) and increased current capacity (3A vs. 2A), offering design margin for applications operating within the original 2SB1182-R-TP specifications. The DC current gain (hFE) remains identical at 82 minimum, preserving amplification characteristics.

Design Considerations: Applications requiring the full 100MHz transition frequency of the 2SB1182-R-TP should evaluate the 2SB1184-R-TP's 70MHz specification against circuit timing requirements. Applications requiring the full 1.5W power dissipation of the 2SB1182-R-TP should evaluate the 2SB1184-R-TP's 1W specification against thermal load calculations. The higher Vce saturation voltage (1V vs. 800mV) may require circuit-level verification in switching applications with tight saturation margins.

Package and Mechanical Compatibility: Identical DPAK (TO-252-3) packaging ensures direct mechanical and thermal compatibility without PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 2SB1184-R-TP be used as a direct replacement for the 2SB1182-R-TP in all applications?

A: The 2SB1184-R-TP is mechanically and electrically compatible for most applications. However, applications dependent on the 100MHz transition frequency or requiring full 1.5W power dissipation must evaluate whether the 2SB1184-R-TP's 70MHz frequency and 1W power rating meet circuit specifications.

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

A: The 2SB1184-R-TP provides higher voltage rating (50V vs. 32V), higher current capacity (3A vs. 2A), and lower power dissipation (1W vs. 1.5W). The transition frequency is lower (70MHz vs. 100MHz), and Vce saturation is higher (1V vs. 800mV). Both maintain identical DC current gain and package specifications.

Q: Are there any compliance or regulatory differences?

A: Both components are ROHS3 compliant with identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited). No regulatory differences exist between the two parts.

Q: Will the 2SB1184-R-TP fit the same PCB footprint as the 2SB1182-R-TP?

A: Yes. Both components use the identical TO-252-3 DPAK package with the same pin configuration and mechanical dimensions. No PCB layout modifications are required.

Q: What is the inventory status of the substitute part?

A: The 2SB1184-R-TP is actively manufactured with 756 Pcs confirmed in stock as new original inventory. The 2SB1182-R-TP is obsolete with 1087 Pcs remaining in stock.

Q: Should I be concerned about the lower power rating of the 2SB1184-R-TP?

A: Applications operating at or near the 1.5W power dissipation limit of the 2SB1182-R-TP should calculate actual power consumption under worst-case conditions. If the 2SB1184-R-TP's 1W rating is insufficient, alternative components with higher power ratings must be evaluated.

Q: How does the lower transition frequency of the 2SB1184-R-TP affect high-frequency applications?

A: The 2SB1184-R-TP's 70MHz transition frequency is lower than the 2SB1182-R-TP's 100MHz specification. Applications operating above 70MHz or requiring the full 100MHz bandwidth must evaluate whether this reduction impacts circuit performance or signal integrity.