PDU-C114 Equivalent & Substitute Parts

Part Overview

The PDU-C114 is an optical sensor photodiode manufactured by Advanced Photonix, designed for ultraviolet to near-infrared detection applications. This component features a PIN diode configuration with a spectral range of 190nm to 1100nm, housed in a TO-5 variant package with 2 leads and a lens top metal can. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and redesign applications.

Substiute Parts

PDU-C114

Advanced PhotonixIn Stock: 847PDU-C114 Datasheet

Current PartRFQ

PDU-V114

Advanced PhotonixIn Stock: 1098PDU-V114 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The PDU-V114 is identified as a manufacturer-recommended substitute for the PDU-C114. Substitution compatibility is determined by the following critical parameters:

Package and Mounting Compatibility: Both components use identical TO-5 variant packaging with 2 leads and lens top metal can configuration, enabling direct mechanical and electrical interface compatibility in through-hole applications.

Diode Type and Spectral Response: Both components employ PIN diode technology with overlapping spectral ranges (PDU-C114: 190nm–1100nm; PDU-V114: 350nm–1100nm), supporting detection across the visible and near-infrared spectrum.

Operating Environment: Both components share identical operating temperature ranges (-40°C to 125°C) and MSL ratings (1 - Unlimited), ensuring equivalent environmental performance.

Electrical Interface: Both components operate within compatible voltage and current parameters, with the PDU-V114 offering enhanced reverse voltage capability (75V vs. 30V) and lower dark current (10pA vs. 3nA).

Parameter Comparison

Engineering Selection Recommendations

The PDU-V114 is the manufacturer-recommended substitute for the obsolete PDU-C114. Selection of the PDU-V114 is supported by the following engineering factors:

Product Availability: The PDU-C114 is obsolete and no longer manufactured. The PDU-V114 is an active product with current production and inventory availability.

Regulatory Compliance: The PDU-V114 is RoHS compliant, meeting current environmental and regulatory standards. The PDU-C114 is RoHS non-compliant, which may restrict use in regulated applications and procurement environments.

Package Compatibility: Both components share identical TO-5 variant packaging with 2 leads and lens top metal can configuration, enabling direct mechanical substitution without PCB redesign.

Electrical Performance: The PDU-V114 provides superior electrical characteristics, including lower dark current (10pA vs. 3nA) and higher reverse voltage rating (75V vs. 30V), resulting in improved signal-to-noise ratio and circuit design flexibility.

Spectral Consideration: The PDU-V114 spectral range (350nm–1100nm) covers the visible and near-infrared spectrum. Applications requiring detection below 350nm must evaluate the reduced UV sensitivity of the PDU-V114 relative to the PDU-C114 (190nm–1100nm).

Frequently Asked Questions (FAQ)

Q: Can the PDU-V114 be used as a direct replacement for the PDU-C114 in existing designs?

A: The PDU-V114 is mechanically and electrically compatible with the PDU-C114 due to identical TO-5 variant packaging, 2-lead configuration, and operating temperature range. However, applications requiring detection below 350nm must evaluate the reduced UV spectral range of the PDU-V114. The PDU-V114 also exhibits different active area dimensions and responsivity characteristics at specific wavelengths.

Q: What are the key differences in electrical performance between these components?

A: The PDU-V114 offers lower dark current (10pA vs. 3nA), higher reverse voltage rating (75V vs. 30V), and faster response time (13ns vs. 65ns). The PDU-C114 provides higher responsivity at 254nm (0.18 A/W vs. 0.09 A/W). These differences affect signal conditioning, circuit design, and application-specific performance.

Q: Are there any compliance or regulatory differences?

A: The PDU-V114 is RoHS compliant, while the PDU-C114 is RoHS non-compliant. For applications subject to RoHS requirements or environmental regulations, the PDU-V114 is the appropriate selection.

Q: How do the active area dimensions affect substitution?

A: The PDU-C114 has an active area of 17.74mm², while the PDU-V114 has dimensions of 3.15mm H × 5.69mm W. Differences in active area affect light collection efficiency and spatial resolution. Applications with specific active area requirements must evaluate compatibility.

Q: What is the spectral range difference, and does it affect substitution?

A: The PDU-C114 covers 190nm–1100nm, while the PDU-V114 covers 350nm–1100nm. The PDU-V114 does not detect ultraviolet wavelengths below 350nm. Applications requiring UV detection below 350nm cannot use the PDU-V114 as a substitute.

Q: Is the PDU-C114 still available for purchase?

A: The PDU-C114 is obsolete and no longer manufactured. The PDU-V114 is the active, manufacturer-recommended substitute with current production and inventory availability.