BAP70-03,115 RF Diode PIN Equivalent & Substitute Parts

Part Overview

The BAP70-03,115 is an RF Diode PIN manufactured by NXP USA Inc., rated for 50V peak reverse voltage with 500 mW power dissipation in SOD-323 packaging. This component is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The BAP70-03,115 operates across the temperature range of -65°C to 150°C and is ROHS3 compliant with unlimited moisture sensitivity rating.

Key Parameters

Parameter	Value
Diode Type	PIN - Single
Voltage - Peak Reverse (Max)	50V
Current - Max	100 mA
Power Dissipation (Max)	500 mW
Capacitance @ Vr, F	0.25pF @ 20V, 1MHz
Resistance @ If, F	1.9Ohm @ 100mA, 100MHz
Operating Temperature	-65°C ~ 150°C (TJ)
Package / Case	SC-76, SOD-323
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BAP70-03,115 is determined by the following critical parameters: Diode Type (PIN - Single), Package (SOD-323), Peak Reverse Voltage rating, Maximum Current capability, Power Dissipation rating, and Operating Temperature range. Substitute parts must maintain electrical compatibility within these specifications while accommodating the obsolete status of the original component.

The substitute parts are grouped into two categories based on voltage rating and power handling characteristics:

Category 1: Standard RF Diodes (35V Rating) BA592E6327HTSA1 and BA592E6433HTMA1 are Standard-type RF diodes with 35V peak reverse voltage. These parts operate at lower voltage ratings than the BAP70-03,115 but maintain the same 100 mA current rating and SOD-323 package. Both are classified as Not For New Designs.

Category 2: PIN Diodes (50V-200V Rating) BAP50-03-TP, MA4P7436-1141T, MA4P7437-1141T, MA4P7438-1141T, MA4P7447-1141T, MA4P7455-1141T, and MADP-007167-11410T are PIN-type RF diodes with voltage ratings ranging from 50V to 200V. These parts maintain PIN diode topology and are available in Active product status with higher operating temperature ratings (175°C) compared to the original component.

Category 3: Intermediate Voltage PIN Diode (30V Rating) BAR6503WE6327HTSA1 is a PIN diode with 30V peak reverse voltage, 100 mA current rating, and 250 mW power dissipation, classified as Active product status.

Parameter Comparison

Part Number	Manufacturer	Diode Type	Voltage - Peak Reverse (Max)	Current - Max	Power Dissipation (Max)	Capacitance @ Vr, F	Resistance @ If, F	Operating Temperature	Package	Product Status
BAP70-03,115	NXP USA Inc.	PIN - Single	50V	100 mA	500 mW	0.25pF @ 20V, 1MHz	1.9Ohm @ 100mA, 100MHz	-65°C ~ 150°C	SOD-323	Obsolete
BA592E6327HTSA1	Infineon Technologies	Standard - Single	35V	100 mA	N/A	1.1pF @ 3V, 1MHz	500mOhm @ 10mA, 100MHz	150°C	SOD-323	Not For New Designs
BA592E6433HTMA1	Infineon Technologies	Standard - Single	35V	100 mA	N/A	1.1pF @ 3V, 1MHz	500mOhm @ 10mA, 100MHz	150°C	SOD-323	Not For New Designs
BAP50-03-TP	Micro Commercial Co	PIN - Single	50V	50 mA	200 mW	0.35pF @ 5V, 1MHz	5Ohm @ 10mA, 100MHz	-65°C ~ 150°C	SOD-323	Obsolete
BAR6503WE6327HTSA1	Infineon Technologies	PIN - Single	30V	100 mA	250 mW	0.8pF @ 3V, 1MHz	900mOhm @ 10mA, 100MHz	150°C	SOD-323	Active
MA4P7436-1141T	MACOM Technology Solutions	PIN - Single	75V	150 mA	200 mW	1pF @ 20V, 1MHz	500mOhm @ 10mA, 100MHz	175°C	SOD-323	Active
MA4P7437-1141T	MACOM Technology Solutions	PIN - Single	200V	150 mA	200 mW	0.35pF @ 50V, 1MHz	6Ohm @ 10mA, 100MHz	175°C	SOD-323	Active
MA4P7438-1141T	MACOM Technology Solutions	PIN - Single	200V	150 mA	200 mW	0.35pF @ 50V, 1MHz	10Ohm @ 10mA, 100MHz	175°C	SOD-323	Active
MA4P7447-1141T	MACOM Technology Solutions	PIN - Single	100V	150 mA	200 mW	1.2pF @ 20V, 1MHz	600mOhm @ 10mA, 100MHz	175°C	SOD-323	Active
MA4P7455-1141T	MACOM Technology Solutions	PIN - Single	100V	150 mA	200 mW	0.35pF @ 50V, 1MHz	3Ohm @ 10mA, 100MHz	175°C	SOD-323	Active
MADP-007167-11410T	MACOM Technology Solutions	PIN - Single	200V	150 mA	200 mW	0.3pF @ 50V, 1MHz	10Ohm @ 10mA, 100MHz	175°C	SOD-323	Active

Engineering Selection Recommendations

Selection of substitute parts for the BAP70-03,115 must account for product status and compliance requirements. The original component is Obsolete, necessitating transition to Active or Not For New Designs alternatives.

For applications requiring exact voltage and current specifications (50V, 100 mA), BAP50-03-TP provides PIN diode topology with matching voltage rating and temperature range, though power dissipation is reduced to 200 mW. This part is also Obsolete but maintains electrical compatibility.

For new designs requiring long-term availability, MACOM Technology Solutions MA4P7436-1141T, MA4P7447-1141T, and MA4P7455-1141T are Active PIN diodes with higher voltage ratings (75V, 100V, 100V respectively) and enhanced operating temperature to 175°C. These parts support higher current ratings (150 mA) and are ROHS3 compliant with unlimited moisture sensitivity.

For applications with lower voltage requirements, BAR6503WE6327HTSA1 is an Active PIN diode rated for 30V with 100 mA current and 250 mW power dissipation. Infineon Technologies BA592E6327HTSA1 and BA592E6433HTMA1 are Standard-type RF diodes with 35V ratings, though classified as Not For New Designs.

All substitute parts maintain SOD-323 packaging and ROHS3 compliance. Selection should prioritize Active product status parts for new designs and long-term procurement stability.

Frequently Asked Questions (FAQ)

Q: Can BA592E6327HTSA1 or BA592E6433HTMA1 directly replace BAP70-03,115?

A: These Infineon parts are Standard-type RF diodes, not PIN diodes. They operate at 35V peak reverse voltage, below the BAP70-03,115 rating of 50V. Substitution is only valid for applications where 35V voltage rating is sufficient. Both parts are classified as Not For New Designs.

Q: What is the difference between MA4P7437-1141T and MA4P7438-1141T?

A: Both are PIN diodes with 200V peak reverse voltage, 150 mA current, and 200 mW power dissipation in SOD-323 packaging. The primary difference is resistance at forward current: MA4P7437-1141T has 6Ohm @ 10mA while MA4P7438-1141T has 10Ohm @ 10mA. Packaging differs (Tape & Reel vs. Bulk).

Q: Which substitute part has the closest power dissipation to the BAP70-03,115?

A: BAR6503WE6327HTSA1 has 250 mW power dissipation, the closest to the original 500 mW rating. However, all MACOM MA4P7xxx and MADP-007167 series parts are rated for 200 mW. BAP50-03-TP also provides 200 mW dissipation.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant. Moisture sensitivity levels vary: most MACOM parts have MSL 1 (Unlimited), while MA4P7436-1141T has MSL 3 (168 Hours).

Q: What is the operating temperature advantage of MACOM parts?

A: MACOM Technology Solutions PIN diodes (MA4P7436-1141T, MA4P7437-1141T, MA4P7438-1141T, MA4P7447-1141T, MA4P7455-1141T, MADP-007167-11410T) operate to 175°C junction temperature, compared to 150°C for the BAP70-03,115 and Infineon alternatives. This provides 25°C additional thermal margin.

Q: Can BAP50-03-TP be used as a direct replacement?

A: BAP50-03-TP is a PIN diode with matching 50V voltage rating and SOD-323 package. However, maximum current is reduced to 50 mA (vs. 100 mA) and power dissipation to 200 mW (vs. 500 mW). Substitution is valid only for applications within these reduced specifications.

Q: Which substitute offers the best current handling capability?

A: All MACOM PIN diodes (MA4P7436-1141T through MADP-007167-11410T) support 150 mA maximum current, exceeding the BAP70-03,115 rating of 100 mA. This provides additional design margin for high-current RF applications.

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