HSMP-3863-TR1G Equivalent & Substitute Parts

Part Overview

The HSMP-3863-TR1G is an RF Diode PIN with 1 Pair Common Anode configuration, rated for 50V peak reverse voltage and 1A maximum current in a 6-TSSOP (SOT-363) package. This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The diode is designed for RF switching and attenuation applications requiring low capacitance and controlled resistance characteristics.

Substiute Parts

HSMP-3863-TR1G

Broadcom LimitedIn Stock: 3354HSMP-3863-TR1G Datasheet

Current PartRFQ

SMP1302-003LF

Skyworks Solutions Inc.In Stock: 2280SMP1302-003LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMP-3863-TR1G is based on the following critical parameters:

• Diode Configuration: PIN - 1 Pair Common Anode topology must be maintained
• Voltage Rating: Substitute must meet or exceed 50V peak reverse voltage requirement
• Current Handling: Substitute must support minimum 1A maximum current
• Frequency Characteristics: Capacitance and resistance values at specified frequencies determine RF performance compatibility
• Operating Temperature Range: Substitute must support the maximum junction temperature of 150°C
• Package Compatibility: Physical form factor and pin configuration must be compatible with existing PCB layouts

The SMP1302-003LF qualifies as a functional substitute based on these parameters, with enhanced voltage rating (200V) and additional power dissipation specification (250mW), providing design margin for the original application.

Parameter Comparison

Engineering Selection Recommendations

The SMP1302-003LF is an active product from Skyworks Solutions Inc. and serves as the manufacturer-recommended substitute for the obsolete HSMP-3863-TR1G. Both devices maintain identical PIN diode configuration and matching resistance characteristics at 100mA/100MHz operation.

Key considerations for selection:

• Voltage Margin: The SMP1302-003LF provides 200V peak reverse rating versus the original 50V specification, offering enhanced design margin for transient protection
• Capacitance Variation: The substitute exhibits 0.3pF capacitance at 30V compared to 0.2pF at 50V in the original; this difference must be evaluated against specific RF circuit requirements
• Package Transition: The substitute uses SOT-23-3 packaging versus the original SOT-363; PCB layout modification is required
• Compliance Status: The SMP1302-003LF is RoHS3 Compliant and carries Active product status, ensuring long-term availability and supply chain continuity
• Environmental Classification: Both devices are REACH Unaffected and carry MSL 1 rating

Frequently Asked Questions (FAQ)

Q: Can the SMP1302-003LF directly replace the HSMP-3863-TR1G without circuit modification?

A: The diode types and electrical characteristics are compatible, but the package change from SOT-363 to SOT-23-3 requires PCB layout modification. Pin configuration must be verified against the specific application schematic.

Q: What is the significance of the voltage rating difference (50V vs. 200V)?

A: The higher voltage rating of the SMP1302-003LF provides additional design margin and transient protection. Applications operating at or below 50V will function correctly with the substitute. The original circuit design voltage requirements determine whether this enhancement is beneficial or unnecessary.

Q: How does the capacitance difference affect RF performance?

A: The SMP1302-003LF exhibits 0.3pF at 30V versus 0.2pF at 50V for the original part. This 0.1pF difference may impact RF impedance matching and frequency response in sensitive applications. Circuit simulation or bench testing is appropriate to confirm performance in the specific application.

Q: Are there any compliance or supply chain advantages to using the SMP1302-003LF?

A: Yes. The SMP1302-003LF is an Active product with RoHS3 compliance, ensuring ongoing availability and regulatory alignment. The original HSMP-3863-TR1G is Obsolete, creating long-term procurement risk.

Q: What packaging considerations apply to this substitution?

A: The original SOT-363 package contains 6 pins in a smaller footprint. The substitute SOT-23-3 package is a 3-pin configuration. Pin mapping and PCB land pattern redesign are required. Consult device datasheets for exact pin assignments.