BA592E6433HTMA1 Equivalent & Substitute Parts

Part Overview

The BA592E6433HTMA1 is an RF standard diode manufactured by Infineon Technologies, rated for 35V peak reverse voltage with a maximum current of 100 mA in SOD-323 packaging. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this diode is currently deployed.

Key Parameters

Parameter	Value
Diode Type	Standard - Single
Voltage - Peak Reverse (Max)	35V
Current - Max	100 mA
Capacitance @ Vr, F	1.1pF @ 3V, 1MHz
Resistance @ If, F	500mOhm @ 10mA, 100MHz
Operating Temperature	150°C (TJ)
Package / Case	SC-76, SOD-323
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BA592E6433HTMA1 are qualified based on the following electrical and mechanical parameters:

Primary Compatibility Criteria:

Package compatibility: SOD-323 form factor (SC-76 or equivalent)
Voltage rating: Must equal or exceed 35V peak reverse voltage
Current rating: Must equal or exceed 100 mA maximum current
Capacitance and resistance characteristics: Must fall within acceptable ranges for RF applications
RoHS3 compliance and MSL Level 1 rating

Substitute Categories:

PIN diodes (BAP50-03-TP, BAP51-03,115, RN731VTE-17) represent functional alternatives to the standard diode topology. These parts exceed the voltage and current specifications of the original part while maintaining SOD-323 packaging compatibility. PIN diodes offer superior RF performance characteristics with lower capacitance and controlled resistance profiles suitable for RF switching and attenuation applications.

Parameter Comparison

Parameter	BA592E6433HTMA1	BAP50-03-TP	BAP51-03,115	RN731VTE-17
Manufacturer	Infineon Technologies	Micro Commercial Co	NXP USA Inc.	Rohm Semiconductor
Diode Type	Standard - Single	PIN - Single	PIN - Single	PIN - Single
Voltage - Peak Reverse (Max)	35V	50V	50V	50V
Current - Max	100 mA	50 mA	50 mA	50 mA
Capacitance @ Vr, F	1.1pF @ 3V, 1MHz	0.35pF @ 5V, 1MHz	0.35pF @ 5V, 1MHz	0.4pF @ 35V, 1MHz
Resistance @ If, F	500mOhm @ 10mA, 100MHz	5Ohm @ 10mA, 100MHz	2.5Ohm @ 10mA, 100MHz	7Ohm @ 10mA, 100MHz
Power Dissipation (Max)	Not specified	200 mW	500 mW	100 mW
Operating Temperature	150°C (TJ)	-65°C ~ 150°C (TJ)	-65°C ~ 150°C (TJ)	125°C (TJ)
Package / Case	SC-76, SOD-323	SC-76, SOD-323	SC-76, SOD-323	SC-90, SOD-323F
Product Status	Not For New Designs	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

BAP51-03,115 (NXP USA Inc.) is the primary recommended substitute. This part maintains active product status, ensuring long-term availability and supply chain stability. It provides 50V voltage rating and 500 mW power dissipation capability, exceeding the original part specifications. The extended operating temperature range (-65°C to 150°C) and lower forward resistance (2.5Ohm) deliver improved RF performance. ROHS3 compliance and MSL Level 1 rating match the original part requirements.

RN731VTE-17 (Rohm Semiconductor) serves as an alternative with active product status and highest inventory availability (282,300 pcs). This part offers 50V voltage rating and maintains SOD-323 form factor compatibility. The lower power dissipation (100 mW) and higher forward resistance (7Ohm) may require circuit evaluation for specific applications. Operating temperature maximum of 125°C is lower than the original part.

BAP50-03-TP (Micro Commercial Co) is available but carries obsolete product status, limiting its suitability for new procurement despite adequate electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can BAP51-03,115 directly replace BA592E6433HTMA1 in existing circuits?

A: BAP51-03,115 is electrically compatible based on voltage, current, and package specifications. However, the diode type change from standard to PIN topology introduces different RF characteristics. Circuit validation is required to confirm performance in the specific application context.

Q: What is the significance of the voltage rating difference (35V vs. 50V)?

A: The 50V rating of substitute parts provides additional safety margin and reverse voltage headroom. This is advantageous for circuit reliability and does not create incompatibility with the original 35V specification.

Q: Are all substitute parts available in SOD-323 packaging?

A: BAP50-03-TP and BAP51-03,115 use SC-76 SOD-323 packaging identical to the original part. RN731VTE-17 uses SC-90 SOD-323F packaging, which is mechanically compatible with SOD-323 footprints but has slightly different dimensions. Verify PCB layout compatibility before selection.

Q: What does "Not For New Designs" status mean for the original part?

A: This designation indicates the BA592E6433HTMA1 has reached end-of-life and is no longer recommended for new product development. Existing inventory may be available, but long-term supply cannot be guaranteed. Substitution is necessary for ongoing production and support.

Q: How do PIN diode characteristics differ from standard diodes in this application?

A: PIN diodes exhibit lower capacitance (0.35-0.4pF vs. 1.1pF) and controlled forward resistance characteristics optimized for RF switching and attenuation. These properties make PIN diodes superior for high-frequency applications but require circuit-level compatibility verification.

Q: Which substitute offers the best long-term availability?

A: BAP51-03,115 and RN731VTE-17 both carry active product status. RN731VTE-17 shows significantly higher inventory (282,300 pcs), indicating stronger supply chain position. BAP51-03,115 offers superior electrical performance with 500 mW power dissipation capability.

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