TNY265P Equivalent & Substitute Parts

Part Overview

The TNY265P is an offline switch flyback converter IC manufactured by Power Integrations, part of the TinySwitch®-II series. This 8-DIP through-hole component integrates a 700V internal switch for isolated flyback topology power supply applications with 11W output capability and 132kHz switching frequency.

The TNY265P is classified as Obsolete. Locating equivalent substitute parts is necessary for design continuity, inventory replenishment, and new production builds where legacy component sourcing becomes constrained.

Substiute Parts

TNY265P

Power IntegrationsIn Stock: 1490TNY265P Datasheet

Current PartRFQ

TNY265PN

Power IntegrationsIn Stock: 2124TNY265PN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNY265P is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Topology: Flyback (isolated converter architecture)
• Output Isolation: Isolated
• Voltage - Breakdown: 700V (maximum voltage rating)
• Power (Watts): 11 W (output power capability)
• Frequency - Switching: 132kHz (switching frequency)
• Duty Cycle: 65% (maximum duty cycle)
• Package / Case: 8-DIP (0.300", 7.62mm), 7 Leads (physical and electrical pin compatibility)
• Mounting Type: Through Hole
• Operating Temperature Range: -40°C ~ 150°C (TJ)
• Fault Protection: Current Limiting, Open Loop, Over Temperature, Short Circuit
• Control Features: EN (enable control)
• Internal Switch(s): Yes

The TNY265PN is identified as a direct substitute. Both parts share identical electrical specifications, topology, power rating, switching characteristics, and package configuration. The primary difference is product status and RoHS compliance classification.

Parameter Comparison

Engineering Selection Recommendations

TNY265PN as Primary Substitute:

The TNY265PN is electrically and mechanically identical to the TNY265P across all functional parameters. Selection of TNY265PN is appropriate based on the following factors:

1. Product Status Alignment: TNY265PN carries "Not For New Designs" status, which is less restrictive than the TNY265P's "Obsolete" classification. This status permits use in existing production lines and legacy system maintenance.

2. RoHS Compliance: TNY265PN is RoHS Compliant, whereas TNY265P is RoHS non-compliant. For applications subject to RoHS regulatory requirements, TNY265PN satisfies compliance obligations.

3. Electrical Equivalence: All critical electrical parameters—breakdown voltage, power rating, switching frequency, duty cycle, fault protection, and control features—are identical between both parts.

4. Package Compatibility: Both parts use 8-PDIP-B packaging with identical pin configuration, lead spacing (0.300", 7.62mm), and through-hole mounting characteristics. Direct PCB substitution is supported without layout modification.

5. Inventory Availability: TNY265PN demonstrates higher current inventory levels (2098 Pcs) compared to TNY265P (1420 Pcs), improving supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can TNY265PN be used as a direct replacement for TNY265P in existing designs?

A: Yes. TNY265PN is electrically and mechanically equivalent to TNY265P. All functional parameters, including topology, power rating, switching frequency, voltage rating, package configuration, and pin assignment, are identical. Direct PCB substitution is supported without circuit modification.

Q: What is the difference between TNY265P and TNY265PN?

A: The primary differences are product status and RoHS compliance. TNY265P is classified as Obsolete and RoHS non-compliant. TNY265PN is classified as Not For New Designs and is RoHS Compliant. Both parts share identical electrical and mechanical specifications.

Q: Is TNY265PN suitable for new product designs?

A: TNY265PN carries a "Not For New Designs" status. This classification indicates the part is available for existing production and legacy system support but is not recommended for new design initiatives. For new designs, consultation with Power Integrations regarding current-generation TinySwitch®-II alternatives is advised.

Q: Are there any package or pinout differences between TNY265P and TNY265PN?

A: No. Both parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging with 7 leads. Pin configuration and electrical function are identical. The only packaging difference is the delivery format: TNY265PN is supplied in Tube packaging.

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

A: Substitution eligibility is determined by matching: topology (Flyback), output isolation (Isolated), breakdown voltage (700V), power rating (11W), switching frequency (132kHz), duty cycle (65%), package type (8-DIP), operating temperature range (-40°C ~ 150°C), and fault protection features (Current Limiting, Open Loop, Over Temperature, Short Circuit).

Q: Can TNY265P be used in applications requiring RoHS compliance?

A: No. TNY265P is RoHS non-compliant. For RoHS-compliant applications, TNY265PN must be used.