STTH30R04PI Equivalent & Substitute Parts

Part Overview

The STTH30R04PI is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 400 V DC reverse voltage and 30 A average rectified current. This component features fast recovery characteristics with a reverse recovery time of 100 ns, making it suitable for high-frequency rectification applications. The device is packaged in a DOP3I through-hole configuration with straight leads and operates across a junction temperature range of -40°C to 175°C.

The STTH30R04PI is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this rectifier diode.

Substiute Parts

STTH30R04PI

STMicroelectronicsIn Stock: 1975STTH30R04PI Datasheet

Current PartRFQ

STTH30R04W

STMicroelectronicsIn Stock: 16273STTH30R04W Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the STTH30R04PI is determined by electrical and mechanical parameter equivalence within the rectifier diode category. The following parameters establish substitution validity:

Electrical Parameters (Critical):

• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io): 30 A
• Voltage - Forward (Vf) (Max) @ If: 1.45 V @ 30 A
• Reverse Recovery Time (trr): 100 ns
• Current - Reverse Leakage @ Vr: 15 µA @ 400 V
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Critical):

• Mounting Type: Through Hole
• Operating Temperature - Junction: -40°C to 175°C

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts must match all electrical parameters, support through-hole mounting, and maintain identical compliance certifications. Package configuration differences are permissible when mechanical fit and thermal characteristics remain compatible with the application circuit board layout.

Parameter Comparison

Engineering Selection Recommendations

The STTH30R04W serves as a direct electrical and functional substitute for the STTH30R04PI. Both components share identical electrical specifications, including reverse voltage rating, rectified current capacity, forward voltage drop, and reverse recovery time. Both maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection.

The primary distinction between these parts is product status and packaging format. The STTH30R04PI is classified as obsolete, while the STTH30R04W maintains active product status with significantly higher inventory availability (16,179 pieces versus 1,900 pieces). The STTH30R04W utilizes a DO-247-2 package configuration compared to the DOP3I-2 package of the main part. Both packages employ straight leads and through-hole mounting technology.

Selection of the STTH30R04W as a substitute requires verification that the DO-247-2 package footprint is compatible with the application circuit board layout and thermal management design. The DO-247 package typically provides enhanced thermal dissipation characteristics compared to DOP3I configurations, which may offer performance advantages in high-current applications.

Frequently Asked Questions (FAQ)

Q: Can the STTH30R04W directly replace the STTH30R04PI in existing circuit designs?

A: The STTH30R04W provides electrical equivalence to the STTH30R04PI across all specified parameters. However, the package configuration differs (DO-247-2 versus DOP3I-2). Direct replacement requires confirmation that the circuit board layout accommodates the DO-247-2 through-hole footprint and that thermal management design remains adequate.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is established through matching of reverse voltage rating (400 V), average rectified current (30 A), forward voltage drop (1.45 V @ 30 A), reverse recovery time (100 ns), and reverse leakage current (15 µA @ 400 V). Both parts meet these specifications identically.

Q: Why is the STTH30R04PI classified as obsolete?

A: The STTH30R04PI is designated as obsolete by the manufacturer. The STTH30R04W represents the active product continuation within the STTH30 base product family, offering equivalent electrical performance with improved supply chain availability.

Q: Are there thermal performance differences between the DOP3I-2 and DO-247-2 packages?

A: Package thermal characteristics are not specified in the provided technical parameters. Circuit design considerations should address thermal management requirements based on application-specific power dissipation and cooling methodology.

Q: Do both parts maintain the same compliance certifications?

A: Both the STTH30R04PI and STTH30R04W are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across the substitution.

Q: What is the inventory status difference between these parts?

A: The STTH30R04PI has 1,900 pieces available as new original stock. The STTH30R04W has 16,179 pieces available, providing substantially greater supply availability for ongoing production requirements.