CHS-UPR Humidity Sensor - Equivalent & Substitute Parts

Part Overview

The CHS-UPR is an active humidity sensor manufactured by TDK Corporation, designed for analog voltage output applications requiring 5V supply operation. This through-hole mounted sensor delivers 500mV output at 50% relative humidity with ±3% RH accuracy across the 5–95% RH measurement range and 60-second response time. The sensor operates within 0°C to 50°C and is ROHS3 compliant. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across production cycles.

Substiute Parts

CHS-UPR

TDK CorporationIn Stock: 1070CHS-UPR Datasheet

Current PartRFQ

CHS-UPS

TDK CorporationIn Stock: 1594CHS-UPS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The CHS-UPS qualifies as a parametric equivalent to the CHS-UPR based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Humidity measurement range: 5–95% RH
• Output type: Analog voltage with 500mV @ 50%RH
• Accuracy tolerance: ±3% RH
• Response time: 60 seconds
• Supply voltage range: 4.75V–5.25V
• Mounting configuration: Through hole
• Operating temperature range: 0°C–50°C
• Package form: Housed sensor
• Regulatory compliance: ROHS3 compliant

Both parts belong to the TDK CHS series and maintain identical functional and environmental specifications, making them interchangeable at the circuit design and PCB layout level.

Parameter Comparison

Engineering Selection Recommendations

Both CHS-UPR and CHS-UPS are active products with identical electrical performance, environmental ratings, and regulatory compliance status. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Supply chain logistics and procurement cost
• Design documentation and qualification history within your organization

The CHS-UPS currently maintains higher inventory levels (1565 pcs vs. 1011 pcs), which may provide supply chain advantages for high-volume production or time-sensitive applications. Both parts carry ROHS3 compliance and EAR99 export classification, ensuring regulatory alignment for standard commercial applications.

Frequently Asked Questions (FAQ)

Q: Can CHS-UPS be used as a direct replacement for CHS-UPR in existing designs?

A: Yes. Both parts are parametrically identical across all electrical, mechanical, and environmental specifications. No circuit modifications or PCB layout changes are required for substitution.

Q: Are there any differences in pin configuration or mechanical mounting between these parts?

A: No. Both parts use identical through-hole mounting and housed sensor packaging. Pin-to-pin compatibility is guaranteed.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both CHS-UPR and CHS-UPS are ROHS3 compliant and classified as EAR99 for export purposes. REACH status for CHS-UPS is listed as unaffected, maintaining compliance with international environmental standards.

Q: What is the basis for substitution between these parts?

A: Substitution is based on matching humidity range (5–95% RH), analog voltage output (500mV @ 50%RH), accuracy (±3% RH), response time (60 s), supply voltage (4.75V–5.25V), operating temperature (0°C–50°C), and through-hole mounting configuration.

Q: Are there any performance differences in accuracy or response time?

A: No. Both parts deliver identical accuracy of ±3% RH and response time of 60 seconds across the full operating temperature range.