Q2010LH5 Equivalent & Substitute Parts

Part Overview

The Q2010LH5 is a Littelfuse Snubberless Alternistor TRIAC rated for 200 V off-state voltage and 10 A on-state current in a TO-220 Isolated Tab package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across an industrial temperature range of -40°C to 125°C and is RoHS3 compliant.

Substiute Parts

Q2010LH5

Littelfuse Inc.In Stock: 1159Q2010LH5 Datasheet

Current PartRFQ

BTA10-600BWRG

STMicroelectronicsIn Stock: 2196BTA10-600BWRG Datasheet

MFR RecommendedRFQ

BTA212X-600B,127

WeEn SemiconductorsIn Stock: 729BTA212X-600B,127 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Q2010LH5 is determined by the following critical parameters:

• Voltage Rating (Off State): The substitute must equal or exceed 200 V to maintain circuit protection margins
• Current Rating (On State): The substitute must support at least 10 A RMS to handle the design load
• Gate Trigger Voltage (Vgt): Maximum 1.3 V to 1.5 V ensures compatible gate drive circuits
• Gate Trigger Current (Igt): Maximum 50 mA maintains gate drive compatibility
• Mounting Type: Through Hole configuration required for PCB compatibility
• Package Type: TO-220 variants acceptable for thermal and mechanical fit
• Operating Temperature Range: -40°C to 125°C minimum required for industrial applications
• RoHS Compliance: ROHS3 compliance required for regulatory alignment

The identified substitutes meet these criteria with voltage ratings of 600 V (exceeding the 200 V requirement) and current ratings of 10 A to 12 A, ensuring functional compatibility while providing enhanced voltage margin.

Parameter Comparison

Engineering Selection Recommendations

BTA10-600BWRG (STMicroelectronics): This substitute maintains identical gate trigger voltage (1.3 V maximum) and current specifications (50 mA maximum) as the Q2010LH5. The 600 V off-state voltage provides enhanced voltage margin over the original 200 V rating. The part is active in production status with ROHS3 compliance and full -40°C to 125°C operating temperature range support. The Snubberless Alternistor type matches the original design intent.

BTA212X-600B,127 (WeEn Semiconductors): This substitute provides 12 A on-state current capacity, exceeding the 10 A requirement. The 600 V off-state voltage and gate trigger specifications (1.5 V maximum) remain within acceptable design parameters. The part is active in production with RoHS compliance. The Standard TRIAC type differs from the original Snubberless Alternistor classification. Operating temperature specification is limited to 125°C maximum without explicit lower temperature rating.

Frequently Asked Questions (FAQ)

Q: Can the BTA10-600BWRG directly replace the Q2010LH5 in existing designs?

A: Yes. The BTA10-600BWRG maintains identical gate trigger voltage and current specifications while providing higher voltage rating. Through Hole TO-220 package compatibility is confirmed. Pin configuration and thermal characteristics are compatible.

Q: What is the significance of the 600 V rating on substitute parts versus the original 200 V?

A: The 600 V off-state voltage on substitute parts provides additional voltage margin and circuit protection capability. This higher rating does not degrade performance in 200 V applications and is standard practice in TRIAC selection for reliability.

Q: Why does the BTA212X-600B,127 specify only 125°C maximum temperature while the Q2010LH5 specifies -40°C to 125°C?

A: The BTA212X-600B,127 datasheet lists 125°C as the junction temperature maximum. The lower temperature limit (-40°C) is typically implied for industrial-grade components but is not explicitly stated in the provided parameters. Verification with the manufacturer datasheet is necessary for applications requiring confirmed -40°C operation.

Q: Are there package differences between the main part and substitutes?

A: The Q2010LH5 uses TO-220-3 Isolated Tab packaging. The BTA10-600BWRG uses standard TO-220-3 packaging. The BTA212X-600B,127 offers both TO-220-3 Full Pack and Isolated Tab options. All variants are mechanically compatible for Through Hole mounting.

Q: What is the difference between Alternistor - Snubberless and Standard TRIAC types?

A: The Alternistor - Snubberless type (Q2010LH5 and BTA10-600BWRG) is optimized for applications without external snubber networks. The Standard TRIAC type (BTA212X-600B,127) may require snubber circuit consideration depending on application requirements.