OP505D Equivalent & Substitute Parts

Part Overview

The OP505D is a phototransistor optical sensor manufactured by TT Electronics/Optek Technology, designed for 935nm infrared detection applications. This component features a T-1 through-hole package with top-view orientation and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from the same manufacturer series are available to maintain design continuity and ensure supply chain reliability for applications requiring 935nm phototransistor functionality.

Substiute Parts

OP505D

TT Electronics/Optek TechnologyIn Stock: 847OP505D Datasheet

Current PartRFQ

OP505B

TT Electronics / Optek TechnologyIn Stock: 3882OP505B Datasheet

DirectRFQ

OP505C

TT Electronics/Optek TechnologyIn Stock: 2954OP505C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OP505D is determined by the following critical parameters:

• Wavelength: 935nm (infrared detection band)
• Package / Case: T-1 (through-hole, top-view orientation)
• Voltage - Collector Emitter Breakdown: 30 V maximum
• Operating Temperature Range: -40°C ~ 100°C
• Mounting Type: Through Hole
• Orientation: Top View
• RoHS and REACH Compliance: ROHS3 Compliant, REACH Unaffected

The substitute parts OP505B and OP505C maintain identical wavelength, package type, voltage rating, temperature range, mounting configuration, and compliance certifications. Both substitutes are manufactured by the same supplier and belong to the OP505 base product family. The primary distinction between substitutes lies in maximum collector current (Ic) specification, which does not restrict substitution when the application current requirement does not exceed the lower-rated part's maximum specification.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the OP505D, both OP505B and OP505C are valid substitutes based on electrical and mechanical parameter alignment. The OP505C is the manufacturer-recommended equivalent, maintaining identical maximum collector current specification (3 mA) to the OP505D. The OP505B offers higher maximum collector current (5.95 mA) and is suitable for applications with current requirements below this threshold.

Both substitute parts carry Active product status, ensuring long-term availability and supply chain stability compared to the Obsolete OP505D. All three parts maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for modern manufacturing environments. Packaging is consistent across all variants (T-1 through-hole, top-view), enabling direct mechanical and electrical interchange without circuit board redesign.

Frequently Asked Questions (FAQ)

Q: Can OP505B and OP505C be used interchangeably with OP505D?

A: Yes, both OP505B and OP505C are electrically and mechanically compatible substitutes. They share identical wavelength (935nm), package type (T-1), voltage rating (30 V), temperature range (-40°C ~ 100°C), and compliance certifications. Selection between them depends on application current requirements.

Q: What is the difference between OP505B and OP505C?

A: The primary difference is maximum collector current specification. OP505B is rated for 5.95 mA maximum, while OP505C is rated for 3 mA maximum, matching the OP505D specification. Both maintain all other electrical and mechanical parameters identically.

Q: Why is OP505D classified as obsolete?

A: The OP505D has reached end-of-life status. OP505B and OP505C are active products from the same manufacturer series and provide equivalent functionality for new designs and replacement applications.

Q: Are there any compliance differences between the three parts?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited), supporting equivalent regulatory and environmental requirements.

Q: Does package type differ between these parts?

A: No. All three parts use identical T-1 through-hole package with top-view orientation, enabling direct mechanical substitution without circuit board modifications.