TNY267P Equivalent & Substitute Parts

Part Overview

The TNY267P is an offline switch flyback converter IC from Power Integrations' TinySwitch®-II series, designed for isolated power supply applications. This component integrates a 700V internal switch with comprehensive fault protection including current limiting, open loop, over temperature, and short circuit protection. The TNY267P operates at 132kHz switching frequency with a 65% duty cycle, delivering up to 19W output power in a through-hole 8-DIP package.

The TNY267P is classified as Obsolete, making it necessary to identify equivalent substitute parts for new procurement and design continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

TNY267P

Power IntegrationsIn Stock: 6397TNY267P Datasheet

Current PartRFQ

TNY267PN

Power IntegrationsIn Stock: 26761TNY267PN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TNY267P is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Voltage - Breakdown: 700V rating
• Switching Frequency: 132kHz operation
• Duty Cycle: 65%
• Power Rating: 19W output capability
• Fault Protection: Current Limiting, Open Loop, Over Temperature, Short Circuit
• Control Features: EN (Enable) function
• Operating Temperature Range: -40°C ~ 150°C (TJ)
• Package / Case: 8-DIP (0.300", 7.62mm), 7 Leads
• Mounting Type: Through Hole
• Internal Switch: Integrated switch requirement

The direct substitute TNY267PN maintains all electrical and mechanical parameters identical to TNY267P. The primary difference is packaging format (Tube vs. standard packaging) and compliance status (RoHS Compliant vs. RoHS non-compliant). Additional substitutes in the TNY267PN cross-reference list (TNY277PN, TNY263PN, TNY268PN, TNY266PG, TNY264PN) represent alternative TinySwitch®-II series devices that may operate at different power levels or specifications and require individual parameter verification for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

TNY267PN as Primary Substitute:

The TNY267PN is the direct electrical and mechanical equivalent of TNY267P. All functional parameters, electrical specifications, and package dimensions are identical. The TNY267PN is classified as "Not For New Designs," indicating it remains available for legacy system support and replacement applications but is not recommended for new product development.

Compliance Consideration:

TNY267PN achieves RoHS Compliance status, whereas TNY267P is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS-compliant components, TNY267PN is the appropriate selection.

Inventory Availability:

TNY267PN maintains significantly higher inventory levels (26,745 pcs) compared to TNY267P (6,330 pcs), providing improved procurement reliability for ongoing production requirements.

Packaging Format:

TNY267PN is supplied in Tube packaging, whereas TNY267P uses standard packaging. Tube packaging is suitable for automated assembly processes and high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can TNY267PN be used as a direct replacement for TNY267P in existing designs?

A: Yes. TNY267PN is electrically and mechanically identical to TNY267P. All electrical parameters, switching characteristics, fault protection features, and package dimensions are equivalent. Direct substitution is permissible without circuit modification.

Q: What is the significance of the "Not For New Designs" status of TNY267PN?

A: This designation indicates that TNY267PN is available for legacy system support, maintenance, and replacement applications. Power Integrations does not recommend this part for new product development. For new designs, evaluation of current-generation TinySwitch®-II alternatives is advised.

Q: Does the RoHS Compliance difference between TNY267P and TNY267PN affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition standards, not electrical performance. Both parts deliver identical electrical specifications and operating characteristics.

Q: Are the 8-DIP package dimensions identical between TNY267P and TNY267PN?

A: Yes. Both parts use the 8-DIP (0.300", 7.62mm) package with 7 leads. PCB footprints and mounting hole spacing are identical, permitting direct board-level substitution.

Q: What is the difference between standard packaging and Tube packaging?

A: Tube packaging is a continuous plastic reel format optimized for automated pick-and-place assembly equipment. Standard packaging refers to conventional bulk or tray formats. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Can other TinySwitch®-II parts listed in the TNY267PN cross-reference (TNY277PN, TNY263PN, TNY268PN, TNY266PG, TNY264PN) substitute for TNY267P?

A: No. These parts are alternative TinySwitch®-II series devices with different electrical specifications. Each part must be individually evaluated against application requirements. Direct substitution is not permissible without circuit redesign and performance verification.

Q: What fault protection features are included in TNY267P and TNY267PN?

A: Both parts integrate Current Limiting, Open Loop, Over Temperature, and Short Circuit protection. These features provide comprehensive safeguarding against fault conditions without external protection components.

Q: Is the 132kHz switching frequency fixed or adjustable in TNY267P/TNY267PN?

A: The 132kHz switching frequency is a fixed characteristic of this device. Frequency adjustment is not supported through external components or control signals.