RF Diode PIN RN242CST2R Equivalent & Substitute Parts

Part Overview

The RN242CST2R is an RF Diode PIN manufactured by Rohm Semiconductor, designed for single-channel RF applications requiring peak reverse voltage handling up to 30V and maximum current capacity of 100 mA. This component is classified as Not For New Designs, indicating it has been superseded in Rohm's product portfolio. Finding equivalent substitute parts is necessary for applications requiring continued supply, legacy system maintenance, or design flexibility when the primary part becomes unavailable.

Substiute Parts

RN242CST2R

Rohm SemiconductorIn Stock: 40337RN242CST2R Datasheet

Current PartRFQ

JDP2S02AFS(TPL3)

Toshiba Semiconductor and StorageIn Stock: 88210JDP2S02AFS(TPL3) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF Diode PIN components is determined by strict alignment of the following electrical and mechanical parameters:

• Diode Type: Must be PIN - Single configuration
• Voltage - Peak Reverse (Max): Must equal or exceed 30V
• Current - Max: Must meet or exceed 100 mA requirement
• Capacitance @ Vr, F: Must be within acceptable RF performance range
• Resistance @ If, F: Must match specified impedance characteristics
• Operating Temperature: Must support 150°C (TJ) maximum junction temperature
• Package / Case: Must be 2-SMD, Flat Lead form factor
• RoHS Compliance: Must meet or exceed ROHS3 standard

The JDP2S02AFS(TPL3) from Toshiba Semiconductor and Storage meets the core electrical specifications and package requirements, making it a valid substitute candidate despite differences in current rating and capacitance values within acceptable tolerances.

Parameter Comparison

Engineering Selection Recommendations

RN242CST2R (Rohm Semiconductor): This part carries a Not For New Designs status, indicating it is in end-of-life phase. Existing inventory of 40,300 pieces is available, suitable for legacy system support or immediate short-term requirements. ROHS3 compliance provides enhanced environmental standards.

JDP2S02AFS(TPL3) (Toshiba Semiconductor and Storage): This part maintains Active product status with substantial inventory of 88,100 pieces, ensuring long-term supply availability. RoHS compliance meets regulatory requirements. The maximum current rating of 50 mA is lower than the RN242CST2R specification of 100 mA; applications requiring the full 100 mA capacity must evaluate whether the Toshiba part's reduced current rating is acceptable for the intended circuit design. Packaging is supplied in Cut Tape (CT) format rather than Tape & Reel (TR), which may affect procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can JDP2S02AFS(TPL3) directly replace RN242CST2R in all applications?

A: Direct substitution is valid for applications where the circuit design operates at or below 50 mA maximum current. Applications requiring the full 100 mA capacity of the RN242CST2R must conduct circuit analysis to confirm the Toshiba part's reduced current rating does not compromise performance or reliability.

Q: What is the significance of the capacitance difference (0.35pF vs 0.4pF)?

A: The capacitance values differ by 0.05pF at 1V, 1MHz. Both measurements fall within typical RF diode performance tolerances. RF circuit designs should verify that this minor capacitance variation does not affect impedance matching or frequency response in the specific application.

Q: Does packaging format affect substitution compatibility?

A: The RN242CST2R is supplied in Tape & Reel (TR) format, while JDP2S02AFS(TPL3) is supplied in Cut Tape (CT) format. Both use identical 2-SMD, Flat Lead physical packages suitable for surface-mount assembly. Packaging format differences affect procurement logistics and tape handling but do not impact electrical or mechanical compatibility on the PCB.

Q: Are both parts compliant with environmental and regulatory standards?

A: Yes. RN242CST2R is ROHS3 compliant, and JDP2S02AFS(TPL3) is RoHS compliant. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions. Both carry ECCN EAR99 and HTSUS 8541.10.0070 classifications.

Q: Which part should be selected for new designs?

A: JDP2S02AFS(TPL3) is the appropriate choice for new designs, as it maintains Active product status with confirmed long-term availability. RN242CST2R is designated Not For New Designs and should be reserved for legacy system maintenance only.