HTB 100-P Current Sensor Equivalent & Substitute Parts

Part Overview

The HTB 100-P is a Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications requiring 100A sensing capability. This open-loop, bidirectional module provides ratiometric voltage output with ±1% linearity and accuracy specifications. The part is currently in active production status with 1049 units available in inventory.

Substitute parts become necessary when the primary HTB 100-P experiences supply constraints, extended lead times, or when design requirements permit operation within the electrical and mechanical tolerances of alternative qualified components. The L08P100D15 from Tamura represents a functionally equivalent alternative, though it carries an obsolete product status designation.

Substiute Parts

HTB 100-P

LEM USA Inc.In Stock: 1086HTB 100-P Datasheet

Current PartRFQ

L08P100D15

TamuraIn Stock: 4288L08P100D15 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTB 100-P is determined by the following critical parameters:

Primary Matching Criteria:

• Current sensing capacity: 100A
• Sensor technology: Hall Effect, Open Loop
• Measurement capability: AC/DC Bidirectional
• Channel configuration: Single channel
• Output format: Ratiometric Voltage
• Linearity tolerance: ±1%

Secondary Compatibility Parameters:

• Supply voltage range overlap: ±15V (common to both parts)
• Operating temperature range: Minimum -10°C to maximum 80°C (L08P100D15 operates within HTB 100-P range)
• Regulatory compliance: RoHS Compliant (both parts)
• Package classification: Module format

The L08P100D15 satisfies all primary matching criteria and maintains compatibility across secondary parameters. Differences in frequency response (DC ~ 100kHz vs. DC ~ 50kHz), response time (10µs vs. 3µs), and maximum supply current (12mA vs. 15mA) do not disqualify substitution but represent performance variations within acceptable engineering tolerances for equivalent functionality.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: HTB 100-P

The HTB 100-P is the recommended component for new designs and applications requiring 100A Hall Effect current sensing. This part maintains active production status, ensuring long-term supply availability and design continuity. The extended operating temperature range (-40°C ~ 80°C) accommodates industrial and automotive environments. Faster response time (3µs) supports applications requiring rapid current transient detection. RoHS compliance and active product status provide regulatory assurance and manufacturing support.

Alternative Selection: L08P100D15

The L08P100D15 serves as a functional equivalent for existing designs currently utilizing this component or for applications where supply constraints on the HTB 100-P necessitate substitution. This part carries obsolete product status, indicating discontinued manufacturing. Selection of the L08P100D15 is appropriate only when:

• Existing inventory is available (4270 units in stock)
• Design has been validated with this specific component
• Application operating temperature range does not require below -10°C operation
• Slower response time (10µs) is acceptable for the intended measurement application

Both parts maintain RoHS compliance and equivalent core functionality. The choice between them is determined by supply availability, design validation history, and specific application performance requirements rather than fundamental electrical incompatibility.

Frequently Asked Questions (FAQ)

Q: Can the L08P100D15 directly replace the HTB 100-P in existing designs?

A: The L08P100D15 provides equivalent 100A Hall Effect current sensing with identical channel configuration and output type. Direct substitution is electrically feasible. However, the L08P100D15 has a slower response time (10µs vs. 3µs) and narrower operating temperature range (-10°C to 80°C vs. -40°C to 80°C). Verify that your application does not require the HTB 100-P's faster response characteristics or extended low-temperature operation before implementing substitution.

Q: What is the significance of the "Obsolete" status for the L08P100D15?

A: Obsolete status indicates that Tamura has discontinued manufacturing of the L08P100D15. While existing inventory (4270 units) is currently available, future procurement will not be possible. For new designs, the HTB 100-P is the appropriate selection due to its active production status and assured long-term availability.

Q: Are there differences in package or mounting between these parts?

A: Both parts are classified as Module format. The HTB 100-P specifies "Single Pass Through" configuration, while the L08P100D15 indicates "Through Hole" mounting. Verify mechanical compatibility with your PCB layout and connector interface before substitution.

Q: Do both parts require the same supply voltage?

A: The HTB 100-P operates on ±12V ~ 15V supply, while the L08P100D15 requires ±15V. The L08P100D15 operates within the upper range of the HTB 100-P specification. Confirm your power supply provides stable ±15V output if substituting with the L08P100D15.

Q: What is the difference in frequency response between these sensors?

A: The HTB 100-P supports DC ~ 50kHz frequency response, while the L08P100D15 extends to DC ~ 100kHz. The L08P100D15 provides higher frequency capability. For applications requiring measurement above 50kHz, the L08P100D15 is the appropriate selection.

Q: Are both parts RoHS compliant?

A: Yes, both the HTB 100-P and L08P100D15 are RoHS Compliant, meeting environmental and regulatory requirements for lead-free manufacturing and hazardous substance restrictions.