BA159-AP Equivalent & Substitute Parts

Part Overview

The BA159-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The BA159-AP features fast recovery characteristics with a reverse recovery time of 250 ns and operates across a junction temperature range of -65°C to 125°C.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	1000 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A
Reverse Recovery Time (trr)	250 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BA159-AP are classified based on electrical parameter compatibility and mechanical interchangeability. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, or Axial equivalent

Substitution Categories:

Direct Manufacturer Equivalent (BA159GP-AP): Identical electrical specifications with matching forward voltage, reverse recovery time, and reverse leakage current. Differs only in packaging format (Tape & Box) and extended operating temperature range to 150°C. Product status is Active.

Similar Manufacturer Part (UF4007 R1G): Meets all critical electrical parameters with identical voltage and current ratings. Differs in forward voltage (1.7 V vs. 1.3 V), reverse recovery time (75 ns vs. 250 ns), and operating temperature range (-55°C to 150°C). Manufactured by Taiwan Semiconductor Corporation with Active product status.

Parametric Equivalent (BA159-E3/73): Shares identical base product number (BA159) with matching voltage, current, and forward voltage specifications. Differs in reverse recovery time (500 ns vs. 250 ns), capacitance characteristics, and packaging format (Cut Tape). Manufactured by Vishay General Semiconductor with Active product status.

Parameter Comparison

Parameter	BA159-AP (Main)	BA159GP-AP	UF4007 R1G	BA159-E3/73
Manufacturer	Micro Commercial Co	Micro Commercial Co	Taiwan Semiconductor Corporation	Vishay General Semiconductor
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V	1000 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.7 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	250 ns	250 ns	75 ns	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V
Capacitance @ Vr, F	15 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz	17 pF @ 4V, 1MHz	12 pF @ 4V, 1MHz
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 125°C	-65°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

BA159GP-AP is the primary substitute for BA159-AP applications. This part maintains identical electrical performance with matching forward voltage (1.3 V @ 1 A) and reverse recovery time (250 ns). The extended operating temperature range to 150°C provides additional thermal margin. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating. BA159GP-AP is currently in Active product status with 729 units in stock, ensuring procurement availability.

BA159-E3/73 serves as a parametric equivalent when BA159GP-AP is unavailable. This Vishay part matches the core voltage and current specifications with identical forward voltage characteristics. The reverse recovery time extends to 500 ns, which may impact switching performance in high-frequency applications. BA159-E3/73 is available in Cut Tape packaging with 10,359 units in stock and Active product status. REACH Unaffected certification is provided.

UF4007 R1G functions as an alternative substitute when forward voltage tolerance permits. This Taiwan Semiconductor Corporation part meets all critical voltage and current requirements with superior reverse recovery time (75 ns). The forward voltage increases to 1.7 V at 1 A, resulting in higher power dissipation. Operating temperature range extends to 150°C. UF4007 R1G is suitable for applications where faster switching recovery is beneficial and forward voltage elevation is acceptable. REACH Unaffected certification is provided.

All substitute parts maintain through-hole mounting compatibility with DO-41 package footprints and comply with ROHS3 environmental standards.

Frequently Asked Questions (FAQ)

Q: Can BA159GP-AP directly replace BA159-AP in existing designs?

A: Yes. BA159GP-AP provides direct electrical and mechanical compatibility with identical voltage ratings (1000 V), current ratings (1 A), forward voltage (1.3 V @ 1 A), and reverse recovery time (250 ns). The primary difference is packaging format and extended operating temperature range to 150°C. Both parts use DO-41 through-hole packages with identical footprints.

Q: What is the difference between BA159-E3/73 and BA159GP-AP?

A: Both parts share the BA159 base product number and match on voltage, current, and forward voltage specifications. BA159-E3/73 differs in reverse recovery time (500 ns vs. 250 ns) and packaging format (Cut Tape vs. Tape & Box). The longer recovery time may affect switching performance in circuits requiring fast transient response. BA159-E3/73 is manufactured by Vishay, while BA159GP-AP is manufactured by Micro Commercial Co.

Q: When should UF4007 R1G be selected over BA159GP-AP?

A: UF4007 R1G is selected when faster reverse recovery (75 ns vs. 250 ns) is required for high-frequency switching applications. The trade-off is increased forward voltage (1.7 V vs. 1.3 V), resulting in higher power dissipation. UF4007 R1G is manufactured by Taiwan Semiconductor Corporation and carries Active product status.

Q: Are all substitute parts RoHS compliant?

A: Yes. BA159GP-AP, UF4007 R1G, and BA159-E3/73 all carry ROHS3 Compliant certification. All parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints.

Q: What packaging formats are available for these substitutes?

A: BA159GP-AP is supplied in Tape & Box (TB) format. BA159-E3/73 is supplied in Cut Tape (CT) format. UF4007 R1G packaging format is not specified in the provided data. All parts use DO-41 through-hole package cases with axial lead configuration.

Q: Do these parts have identical reverse leakage current specifications?

A: Yes. All substitute parts maintain 5 µA reverse leakage current at 1000 V, matching the BA159-AP specification exactly.

Q: What is the inventory status for these substitute parts?

A: BA159GP-AP has 729 units in stock. BA159-E3/73 has 10,359 units in stock. UF4007 R1G has 785 units in stock. All parts are classified as New Original In Stock.

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