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P40-G240-WHX Equivalent & Substitute Parts
Part Overview
The P40-G240-WHX is a circuit protection device from Bourns Inc.'s TBU® series, designed for general-purpose applications requiring surge suppression and transient voltage protection. This component features an internal switch technology with dual circuits and is rated for 28V working voltage with 240mA protection capacity at 40V impulse.
The P40-G240-WHX is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Bourns Inc. |
| Series | TBU® |
| Voltage - Working | 28V |
| Number of Circuits | 2 |
| Technology | Internal Switch |
| Mounting Type | Surface Mount |
| Package / Case | 6-SMD, No Lead |
| Supplier Device Package | 6-DFN (4x4) |
| Applications | General Purpose |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the P40-G240-WHX is determined by strict equivalence across the following critical parameters:
- Working voltage: 28V
- Number of circuits: 2
- Technology: Internal Switch
- Mounting type: Surface Mount
- Package configuration: 6-SMD, No Lead / 6-DFN (4x4)
- Series: TBU®
- Manufacturer: Bourns Inc.
- Applications: General Purpose
The P40-G240-WH qualifies as a direct substitute because it maintains identical electrical specifications, package footprint, and functional characteristics while differing only in product status (active vs. obsolete) and packaging format (Tape & Reel vs. standard packaging).
Parameter Comparison
| Parameter | P40-G240-WHX (Main) | P40-G240-WH (Substitute) |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Series | TBU® | TBU® |
| Product Status | Obsolete | Active |
| Voltage - Working | 28V | 28V |
| Number of Circuits | 2 | 2 |
| Technology | Internal Switch | Internal Switch |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 6-SMD, No Lead | 6-SMD, No Lead |
| Supplier Device Package | 6-DFN (4x4) | 6-DFN (4x4) |
| Applications | General Purpose | General Purpose |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Packaging Format | Standard | Tape & Reel (TR) |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 1 (Unlimited) |
Engineering Selection Recommendations
The P40-G240-WH is the qualified substitute for the obsolete P40-G240-WHX. Both components are manufactured by Bourns Inc. and maintain identical electrical and mechanical specifications required for circuit protection applications.
The P40-G240-WH offers the advantage of active product status, ensuring ongoing availability and manufacturing support. Additionally, the improved Moisture Sensitivity Level (MSL 1 vs. MSL 3) provides extended shelf life and reduced handling constraints during storage and assembly operations.
Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and deployment.
Frequently Asked Questions (FAQ)
Q: Can the P40-G240-WH be used as a direct replacement for the P40-G240-WHX?
A: Yes. The P40-G240-WH is a direct functional and mechanical equivalent. Both components share identical working voltage (28V), circuit count (2), package configuration (6-DFN 4x4), and internal switch technology specifications.
Q: What is the difference between these two part numbers?
A: The primary differences are product status and packaging format. The P40-G240-WHX is obsolete and supplied in standard packaging, while the P40-G240-WH is an active product supplied in Tape & Reel format. The P40-G240-WH also features improved moisture sensitivity characteristics (MSL 1 vs. MSL 3).
Q: Are there any compatibility concerns when switching from P40-G240-WHX to P40-G240-WH?
A: No compatibility concerns exist. The identical 6-DFN (4x4) package footprint ensures direct PCB compatibility without layout modifications. Electrical performance and functional behavior remain unchanged.
Q: Does the Tape & Reel packaging of the P40-G240-WH affect its performance?
A: No. Tape & Reel packaging is a distribution format only and does not affect component performance, electrical characteristics, or reliability. It provides advantages for automated assembly processes.
Q: Are both parts compliant with current regulatory standards?
A: Yes. Both the P40-G240-WHX and P40-G240-WH are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
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