TESP5700 Equivalent & Substitute Parts

Part Overview

The TESP5700 is a photodiode optical sensor manufactured by Vishay Semiconductor Opto Division, designed for 870nm infrared detection applications. This component features a PIN diode configuration with a 10ns response time and 120° viewing angle in a radial, side-view package. The TESP5700 is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

TESP5700

Vishay Semiconductor Opto DivisionIn Stock: 770TESP5700 Datasheet

Current PartRFQ

BPV23NF

Vishay Semiconductor Opto DivisionIn Stock: 1585BPV23NF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TESP5700 is determined by alignment across the following critical parameters:

Electrical Compatibility:

• Diode type (PIN configuration)
• Spectral response range overlap (790nm ~ 980nm for TESP5700)
• Reverse voltage rating (60 V maximum)
• Operating temperature range (-40°C ~ 100°C)

Mechanical Compatibility:

• Mounting type (Through Hole)
• Package configuration (Radial, Side View)
• Viewing angle (120°)

Regulatory & Environmental:

• RoHS3 compliance
• Operating temperature range alignment

The BPV23NF meets these substitution criteria through matching diode type, package configuration, mounting method, viewing angle, reverse voltage rating, and temperature range. The BPV23NF operates at 950nm within the overlapping spectral range of both components (870nm ~ 1050nm), enabling functional substitution in applications tolerant of the wavelength shift within the specified spectral bands.

Parameter Comparison

Engineering Selection Recommendations

The BPV23NF is an active product with current manufacturing support and full inventory availability (1531 pcs in stock), providing supply chain continuity for applications currently using the obsolete TESP5700. Both components share identical mechanical interfaces, electrical ratings, and environmental specifications, enabling direct substitution at the board level.

The BPV23NF maintains ROHS3 compliance and operates within the same temperature range as the TESP5700. The shift from 870nm to 950nm wavelength operation occurs within the overlapping spectral response bands of both components. The BPV23NF features a larger active area (4.4mm² versus 2.2mm²) and slightly elevated dark current (2nA versus 1nA), which may require circuit-level evaluation depending on application sensitivity requirements.

Frequently Asked Questions (FAQ)

Q: Can the BPV23NF directly replace the TESP5700 in existing designs?

A: Yes, at the component level. Both parts share identical package configuration (Radial, Side View), mounting type (Through Hole), reverse voltage rating (60 V), viewing angle (120°), and operating temperature range (-40°C ~ 100°C). Circuit-level validation is recommended to confirm performance with the wavelength shift from 870nm to 950nm and the increased active area.

Q: What are the key differences between these components?

A: The primary differences are wavelength (870nm versus 950nm), active area (2.2mm² versus 4.4mm²), and dark current (1nA versus 2nA). Both operate within overlapping spectral ranges (790nm ~ 980nm and 870nm ~ 1050nm respectively), enabling functional substitution in broadband infrared applications.

Q: Are both components RoHS compliant?

A: Yes, both the TESP5700 and BPV23NF are ROHS3 compliant and REACH unaffected.

Q: What is the inventory status of these components?

A: The TESP5700 is obsolete with 710 pcs available as new original stock. The BPV23NF is an active product with 1531 pcs in current inventory, providing long-term supply availability.

Q: Does the larger active area of the BPV23NF affect compatibility?

A: The larger active area (4.4mm² versus 2.2mm²) may affect optical coupling efficiency and dark current characteristics. Applications with tight optical alignment or low-noise requirements should evaluate circuit performance with the BPV23NF before full production implementation.