TS4K40-A Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The TS4K40-A is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, designed for applications requiring 400 V peak reverse voltage with 4 A average rectified current capacity. This component is a through-hole mounted diode bridge in a 4-SIP package configuration. The TS4K40-A is discontinued at DiGi Electronics, making identification of equivalent parts essential for ongoing design support and production continuity. Bridge rectifiers of this specification are commonly used in AC-to-DC conversion circuits, power supply designs, and industrial control applications where single-phase rectification is required.

Substiute Parts

TS4K40-A

Taiwan Semiconductor CorporationIn Stock: 3015TS4K40-A Datasheet

Current PartRFQ

TS4K40-A

Taiwan Semiconductor CorporationIn Stock: 3015TS4K40-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of bridge rectifier diodes is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Voltage - Peak Reverse (Max): Must equal or exceed 400 V
• Current - Average Rectified (Io): Must equal or exceed 4 A
• Voltage - Forward (Vf) (Max) @ If: Must not exceed 1 V @ 2 A
• Current - Reverse Leakage @ Vr: Must not exceed 10 µA @ 400 V
• Operating Temperature Range: Must encompass -55°C to 150°C (TJ)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole (required for PCB integration)
• Package / Case: 4-SIP, TS4K (physical footprint and pin configuration)
• Diode Type: Single Phase (functional architecture)
• Technology: Standard (performance class)

Regulatory & Environmental Compliance:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must satisfy all electrical parameters simultaneously, maintain identical mechanical form factor, and meet all regulatory requirements to ensure direct replacement capability without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The TS4K40-A bridge rectifier is discontinued at DiGi Electronics. The substitute part TS4K40-A maintains complete electrical and mechanical equivalence with the original component specification. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical characteristics, package configuration, and regulatory compliance status.

Selection of the substitute TS4K40-A is appropriate for applications requiring:

• Single-phase bridge rectification at 400 V peak reverse voltage
• 4 A average rectified current capacity
• Through-hole mounting in 4-SIP package footprint
• Operating temperature range from -55°C to 150°C
• ROHS3 compliance and REACH unaffected status
• Unlimited moisture sensitivity handling (MSL 1)

No circuit modifications, PCB redesign, or thermal management adjustments are required when substituting the TS4K40-A for the original TS4K40-A component. The parts are functionally and physically interchangeable.

Frequently Asked Questions (FAQ)

Q: What makes the TS4K40-A a direct substitute for the discontinued TS4K40-A?

A: The substitute TS4K40-A is manufactured by the same supplier (Taiwan Semiconductor Corporation) and carries identical electrical specifications, including 400 V peak reverse voltage, 4 A average rectified current, 1 V forward voltage drop at 2 A, and 10 µA reverse leakage current at 400 V. The mechanical package (4-SIP, TS4K) and operating temperature range (-55°C to 150°C) are also identical, ensuring direct replacement without circuit modification.

Q: Can the TS4K40-A be used in applications originally designed for the TS4K40-A?

A: Yes. The TS4K40-A is a direct equivalent with matching electrical performance, thermal characteristics, and physical form factor. No design changes are required for PCB integration or circuit operation.

Q: Are there any compliance or regulatory differences between the main part and substitute?

A: No. Both the TS4K40-A main part and TS4K40-A substitute carry identical regulatory certifications: ROHS3 Compliant, REACH Unaffected, and MSL 1 (Unlimited moisture sensitivity). No additional compliance documentation or handling procedures are required.

Q: What is the significance of the 4-SIP package configuration?

A: The 4-SIP (Single In-line Package) configuration specifies the physical form factor and pin arrangement of the bridge rectifier. This package type is designed for through-hole mounting on printed circuit boards with standard 0.1-inch (2.54 mm) pin spacing. The TS4K designation confirms compatibility with existing PCB layouts designed for this package type.

Q: Does the TS4K40-A operate within the same temperature range as the original?

A: Yes. Both parts operate across the identical temperature range of -55°C to 150°C (junction temperature). No thermal management modifications are required when substituting between these parts.

Q: What is the significance of the 10 µA reverse leakage current specification?

A: The reverse leakage current of 10 µA at 400 V indicates the maximum DC current that flows through the rectifier when reverse bias is applied. This specification is critical for applications requiring low standby current consumption or high input impedance. The substitute TS4K40-A maintains this specification, ensuring equivalent performance in circuits sensitive to leakage current.