BA159-TP Equivalent & Substitute Parts

Part Overview

The BA159-TP is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. Manufactured by Micro Commercial Co, this part is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for ongoing design support, production continuity, and long-term component availability.

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
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
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-TP are classified based on electrical parameter compatibility and product status:

Direct Equivalent (Packaging Variant): Parts with identical electrical specifications but different packaging formats (tape & reel versus bulk).

Parametric Equivalent: Parts with matching voltage, current, and recovery characteristics that satisfy the same circuit requirements, differing only in packaging or minor parameter variations within acceptable tolerances.

Similar Substitute: Parts with the same voltage rating and through-hole mounting but with reduced current capacity or different recovery characteristics, suitable for applications with lower current demands.

The critical parameters determining substitution eligibility are:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1 A (or lower for reduced-current applications)
Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, Axial
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Parameter Comparison

Part Number	Manufacturer	Product Status	Vr (Max)	Io	Vf (Max) @ If	trr	Speed	Temp Range	Packaging
BA159-TP	Micro Commercial Co	Obsolete	1000 V	1 A	1.3 V @ 1 A	250 ns	Fast Recovery ≤ 500ns	-65°C ~ 125°C	DO-41
BA159GP-TP	Micro Commercial Co	Active	1000 V	1 A	1.3 V @ 1 A	250 ns	Fast Recovery ≤ 500ns	-65°C ~ 150°C	DO-41 (TR)
BA159-E3/54	Vishay General Semiconductor - Diodes Division	Active	1000 V	1 A	1.3 V @ 1 A	500 ns	Fast Recovery ≤ 500ns	-65°C ~ 125°C	DO-204AL (CT)
BA159-E3/73	Vishay General Semiconductor - Diodes Division	Active	1000 V	1 A	1.3 V @ 1 A	500 ns	Fast Recovery ≤ 500ns	-65°C ~ 125°C	DO-204AL (CT)
UF4007HB0G	Taiwan Semiconductor Corporation	Active	1000 V	1 A	1.7 V @ 1 A	75 ns	Fast Recovery ≤ 500ns	-55°C ~ 150°C	DO-204AL (DO-41)
GI250-1-E3/54	Vishay General Semiconductor - Diodes Division	Active	1000 V	250 mA	3.5 V @ 250 mA	2 µs	Standard Recovery >500ns	-65°C ~ 175°C	DO-204AL (TR)

Engineering Selection Recommendations

BA159GP-TP is the primary direct equivalent for BA159-TP. This part maintains identical electrical specifications (1000 V, 1 A, 1.3 V forward voltage, 250 ns recovery time) and is manufactured by the same supplier. The part is active and available in tape & reel packaging. Operating temperature range extends to 150°C compared to the original 125°C maximum. ROHS3 compliance is maintained.

BA159-E3/54 and BA159-E3/73 are parametric equivalents from Vishay General Semiconductor - Diodes Division. Both parts share the same base product number (BA159) and deliver identical electrical performance at the specified operating point (1000 V, 1 A, 1.3 V forward voltage). Reverse recovery time is specified at 500 ns, within the fast recovery classification. These parts are active and available in cut tape packaging. ROHS3 and REACH compliance are confirmed.

UF4007HB0G from Taiwan Semiconductor Corporation is an active substitute with identical voltage and current ratings. Forward voltage is specified at 1.7 V @ 1 A, representing a 0.4 V increase over the BA159-TP. Reverse recovery time is 75 ns, significantly faster than the original specification. This part carries AEC-Q101 automotive qualification and operates across -55°C to 150°C. ROHS3 and REACH compliance are confirmed.

GI250-1-E3/54 from Vishay is a similar substitute suitable for applications with reduced current requirements. This part is rated for 250 mA average rectified current (one-quarter of the BA159-TP rating) at 1000 V. Forward voltage is 3.5 V @ 250 mA. Recovery time is 2 µs (standard recovery, not fast recovery). This part is active and available in tape & reel packaging with extended operating temperature range (-65°C to 175°C).

Frequently Asked Questions (FAQ)

Q: Can BA159GP-TP directly replace BA159-TP in all applications?

A: Yes. BA159GP-TP is a direct equivalent with identical electrical specifications. The primary difference is packaging format (tape & reel versus bulk) and extended maximum operating temperature (150°C versus 125°C). Both parts are manufactured by Micro Commercial Co and maintain ROHS3 compliance.

Q: What is the difference between BA159-E3/54 and BA159-E3/73?

A: Both parts are parametric equivalents with identical electrical specifications. The designation suffix indicates different tape packaging configurations from Vishay General Semiconductor - Diodes Division. Selection between these parts depends on tape reel specifications required by assembly equipment.

Q: Can UF4007HB0G be used as a substitute for BA159-TP?

A: UF4007HB0G is an active substitute with matching voltage and current ratings. Forward voltage is higher (1.7 V versus 1.3 V), and reverse recovery time is faster (75 ns versus 250 ns). These differences are within acceptable tolerances for general-purpose rectification circuits. The part carries automotive qualification (AEC-Q101) and operates across a wider temperature range (-55°C to 150°C).

Q: When should GI250-1-E3/54 be considered?

A: GI250-1-E3/54 is suitable only for applications where circuit current requirements do not exceed 250 mA. This part is not a direct substitute for BA159-TP in 1 A applications. The higher forward voltage (3.5 V @ 250 mA) and standard recovery time (2 µs) also differ from the original specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. BA159-E3/54, BA159-E3/73, UF4007HB0G, and GI250-1-E3/54 also carry REACH Unaffected status.

Q: What is the difference between DO-41 and DO-204AL packaging?

A: DO-41 and DO-204AL are equivalent designations for the same axial through-hole package format. Both refer to a cylindrical component with leads at each end, suitable for through-hole PCB assembly. Package dimensions and lead spacing are identical.

Q: Can these parts be used interchangeably in existing PCB designs?

A: All substitute parts use identical through-hole axial packaging (DO-41/DO-204AL) with the same lead spacing and mounting footprint. Direct PCB substitution is possible without layout modifications. Verify that circuit design parameters (voltage, current, temperature) remain within the specifications of the selected substitute part.

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