TISP7320F3SL Equivalent & Substitute Parts

Part Overview

The TISP7320F3SL is a 240V off-state, 175A peak pulse (8/20µs) transient voltage suppressor thyristor manufactured by Bourns Inc. in a 3-SIP through-hole package configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part's core function—transient voltage suppression with thyristor-based protection—remains critical in applications requiring high-current pulse handling and voltage clamping.

Substiute Parts

TISP7320F3SL

Bourns Inc.In Stock: 1016TISP7320F3SL Datasheet

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TISP7320F3DR-S

Bourns Inc.In Stock: 5371TISP7320F3DR-S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TISP7320F3SL is determined by electrical parameter equivalence across the following critical specifications:

• Voltage ratings (breakover, off-state, on-state)
• Peak pulse current handling (8/20µs and 10/1000µs waveforms)
• Hold current threshold
• Number of protection elements
• Capacitance characteristics

The TISP7320F3DR-S qualifies as a functional equivalent based on identical electrical performance across all specified parameters. The primary distinction lies in packaging and mounting technology: the substitute transitions from through-hole (3-SIP) to surface-mount (8-SOIC) configuration, requiring PCB redesign for mechanical integration.

Parameter Comparison

Engineering Selection Recommendations

The TISP7320F3DR-S represents the primary substitute for the obsolete TISP7320F3SL, offering identical electrical performance with the advantage of active product status and ROHS3 compliance. Selection between these parts depends on application constraints:

For through-hole PCB designs requiring the original 3-SIP package, the TISP7320F3SL remains available in existing inventory (948 pcs). However, this part's obsolete status and RoHS non-compliance present long-term supply and regulatory risks.

For new designs or redesigns accommodating surface-mount technology, the TISP7320F3DR-S in 8-SOIC package is the preferred choice. This part maintains full electrical equivalence while providing active manufacturing status, ROHS3 compliance, and significantly higher inventory availability (5300 pcs).

Both parts share identical REACH and ECCN classifications, ensuring regulatory consistency across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Are the TISP7320F3SL and TISP7320F3DR-S electrically interchangeable?

A: Yes. Both parts deliver identical electrical performance across all specified parameters: 240V off-state voltage, 175A peak pulse current (8/20µs), 45A peak pulse current (10/1000µs), 150mA hold current, and 39pF capacitance. The three-element configuration is identical in both variants.

Q: What is the primary difference between these parts?

A: The TISP7320F3SL uses through-hole mounting in a 3-SIP package, while the TISP7320F3DR-S uses surface-mount technology in an 8-SOIC package. This difference requires PCB layout and assembly process modifications but does not affect electrical function.

Q: Why should I consider the TISP7320F3DR-S over the TISP7320F3SL?

A: The TISP7320F3DR-S carries active product status, ROHS3 compliance, and substantially higher inventory availability. The TISP7320F3SL is obsolete and RoHS non-compliant, presenting supply chain and regulatory constraints for long-term applications.

Q: Can I use the TISP7320F3DR-S as a direct drop-in replacement?

A: No. While electrically equivalent, the surface-mount 8-SOIC package requires PCB redesign and different assembly processes compared to the through-hole 3-SIP configuration. Mechanical integration must be re-evaluated for your specific application.

Q: Are there any compliance differences between these parts?

A: Yes. The TISP7320F3DR-S is ROHS3 compliant, while the TISP7320F3SL is RoHS non-compliant. Both parts are REACH unaffected and share the same ECCN (EAR99) and HTSUS (8541.30.0080) classifications.