ERA-S15J122V Equivalent & Substitute Parts

Part Overview

The ERA-S15J122V is a 1.2 kOhms ±5% temperature sensitive metal film resistor manufactured by Panasonic Electronic Components, rated at 0.1W (1/10W) for surface mount applications. This component is classified as obsolete, making identification of suitable equivalent parts essential for ongoing design support and production continuity. Temperature sensitive resistors with 1500ppm/°C coefficient are used in temperature correction circuits where precise thermal compensation is required across the operating range of -40°C to 125°C.

Substiute Parts

ERA-S15J122V

Panasonic Electronic ComponentsIn Stock: 980ERA-S15J122V Datasheet

Current PartRFQ

32207615

Yageo NexensosIn Stock: 1540032207615 Datasheet

SimilarRFQ

CRCW08051K20JNEA

Vishay DaleIn Stock: 32288CRCW08051K20JNEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERA-S15J122V is determined by the following critical parameters:

• Resistance Value: 1.2 kOhms nominal
• Tolerance: ±5% maximum acceptable deviation
• Power Rating: Minimum 0.1W; higher ratings acceptable
• Temperature Coefficient: 1500ppm/°C characteristic for temperature compensation function
• Package Format: 0805 (2012 Metric) surface mount
• Composition Type: Metal film or equivalent precision film technology
• Operating Temperature: Minimum -40°C to 125°C coverage
• Compliance: ROHS3 and MSL 1 preferred for manufacturing compatibility

Two substitute parts meet these criteria with varying trade-offs in composition, temperature coefficient, and power rating.

Parameter Comparison

Engineering Selection Recommendations

CRCW08051K20JNEA provides the closest electrical match to the ERA-S15J122V. Both components share identical resistance (1.2 kOhms) and tolerance (±5%), with the Vishay Dale part offering higher power dissipation (0.125W vs 0.1W) and extended operating temperature range (-55°C to 155°C). The primary trade-off is composition: CRCW08051K20JNEA uses thick film technology with ±200ppm/°C temperature coefficient, compared to the metal film 1500ppm/°C of the original. This difference is significant for temperature compensation circuits where the 1500ppm/°C characteristic is functionally required. CRCW08051K20JNEA is active, ROHS3 compliant, and available in high volume (32,246 pcs).

32207615 from Yageo Nexensos is an RTD (Resistance Temperature Detector) with platinum sensing element, fundamentally different in function from the ERA-S15J122V. While it shares 0805 package format and surface mount compatibility, the 1 kOhms nominal resistance, ±0.12% tolerance, and 3850ppm/°C temperature coefficient represent a different component class. This part is suitable only if the circuit design can accommodate RTD-specific characteristics and the 200 ohms resistance deviation.

For direct functional replacement in temperature correction circuits requiring 1500ppm/°C compensation, neither substitute provides identical performance. CRCW08051K20JNEA is the preferred alternative for general 1.2 kOhms ±5% applications where temperature coefficient requirements are less stringent.

Frequently Asked Questions (FAQ)

Q: Can CRCW08051K20JNEA directly replace ERA-S15J122V in temperature compensation circuits?

A: CRCW08051K20JNEA matches resistance and tolerance specifications but differs in temperature coefficient (±200ppm/°C vs 1500ppm/°C). Direct substitution is valid only if circuit design tolerates the reduced temperature compensation slope. Verify thermal performance requirements before implementation.

Q: What is the functional difference between CRCW08051K20JNEA and 32207615?

A: CRCW08051K20JNEA is a precision thick film resistor with fixed resistance and temperature coefficient. 32207615 is an RTD (Resistance Temperature Detector) with platinum sensing element, designed for temperature measurement rather than fixed compensation. These are distinct component classes with different application purposes.

Q: Are all three parts available in 0805 package format?

A: Yes. ERA-S15J122V, CRCW08051K20JNEA, and 32207615 are all specified for 0805 (2012 Metric) surface mount package. PCB footprint compatibility is confirmed across all three parts.

Q: What are the compliance and availability differences?

A: ERA-S15J122V is obsolete (901 pcs available). CRCW08051K20JNEA is active, ROHS3 compliant, with 32,246 pcs in stock. 32207615 is active, RoHS compliant, with 15,299 pcs in stock. Both active alternatives provide superior supply chain continuity.

Q: Can 32207615 be used as a direct substitute?

A: 32207615 is not a direct substitute. The 200 ohms resistance difference (1 kOhms vs 1.2 kOhms) and RTD-specific characteristics make it suitable only for applications where circuit design explicitly accommodates these parameters.