Q8012NH5RP TRIAC Alternistor 800V 12A Equivalent & Substitute Parts

Part Overview

The Q8012NH5RP is an 800V 12A TRIAC Alternistor (Snubberless) manufactured by Littelfuse Inc. in Surface Mount TO-263 (D2PAK) packaging. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory availability, or specific performance characteristics within the same electrical and mechanical parameter ranges.

Substiute Parts

Q8012NH5RP

Littelfuse Inc.In Stock: 805Q8012NH5RP Datasheet

Current PartRFQ

BTA216B-800B,118

WeEn SemiconductorsIn Stock: 6582BTA216B-800B,118 Datasheet

MFR RecommendedRFQ

T1210-800G-TR

STMicroelectronicsIn Stock: 1464T1210-800G-TR Datasheet

MFR RecommendedRFQ

T1235-800G-TR

STMicroelectronicsIn Stock: 1660T1235-800G-TR Datasheet

MFR RecommendedRFQ

T2535-800G

STMicroelectronicsIn Stock: 1266T2535-800G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Q8012NH5RP is determined by the following critical parameters:

• Voltage - Off State: 800 V (exact match required)
• Current - On State (It (RMS)) (Max): 12 A minimum
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V maximum
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C ~ 125°C (TJ)

Substitute parts must maintain compatibility across these parameters. Parts with higher current ratings or lower gate trigger voltages remain functionally compatible within the same electrical class and package footprint.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain 800V off-state voltage and Surface Mount D2PAK packaging compatibility with the Q8012NH5RP.

T1235-800G-TR (STMicroelectronics) provides direct electrical equivalence with identical 12A current rating, 1.3V gate trigger voltage, and -40°C to 125°C operating temperature range. RoHS3 compliance and Snubberless Alternistor classification match the original specification.

T1210-800G-TR (STMicroelectronics) offers 12A current rating with reduced gate trigger current (10 mA vs. 50 mA) and hold current (15 mA vs. 50 mA) due to Logic - Sensitive Gate classification. RoHS3 compliance and full temperature range (-40°C to 125°C) are maintained.

BTA216B-800B,118 (WeEn Semiconductors) provides 16A current capacity with 1.5V gate trigger voltage. Operating temperature specification is limited to 125°C maximum (no lower temperature bound specified). Standard TRIAC classification differs from Snubberless Alternistor type. RoHS compliance is confirmed.

T2535-800G (STMicroelectronics) supports 25A current rating with enhanced surge current capability (250A, 260A). Gate trigger voltage remains 1.3V. RoHS3 compliance and full temperature range (-40°C to 125°C) are maintained. Snubberless Alternistor classification aligns with original part.

Frequently Asked Questions (FAQ)

Q: Can T1235-800G-TR directly replace Q8012NH5RP without circuit modification?

A: Yes. T1235-800G-TR maintains identical electrical parameters: 800V off-state voltage, 12A on-state current, 1.3V gate trigger voltage, and -40°C to 125°C operating temperature. Both are Snubberless Alternistor TRIACs in TO-263 D2PAK packaging. No circuit changes are required.

Q: What is the difference between T1210-800G-TR and T1235-800G-TR?

A: Both parts operate at 800V and 12A. T1210-800G-TR is classified as Logic - Sensitive Gate with lower gate trigger current (10 mA) and hold current (15 mA). T1235-800G-TR is classified as Alternistor - Snubberless with higher gate trigger current (35 mA) and hold current (35 mA). Selection depends on gate drive circuit requirements.

Q: Why does BTA216B-800B,118 have a higher current rating (16A) than Q8012NH5RP (12A)?

A: BTA216B-800B,118 is rated for 16A on-state current, which exceeds the 12A requirement of Q8012NH5RP. This part remains compatible as it can handle the same or lower current loads. The higher rating provides additional design margin.

Q: Is T2535-800G suitable for applications requiring exactly 12A?

A: Yes. T2535-800G is rated for 25A on-state current, which exceeds the 12A requirement. The part operates within safe limits at lower current levels. The higher current rating and surge capability (250A, 260A) provide additional performance margin.

Q: What is the packaging difference between these substitute parts?

A: All substitute parts use TO-263-3 D2PAK (2 Leads + Tab) Surface Mount packaging, identical to Q8012NH5RP. Tape & Reel (TR), Cut Tape (CT), and Tube packaging options are available depending on supplier and quantity requirements, but the component footprint and pinout remain unchanged.

Q: Are all substitute parts RoHS compliant?

A: Yes. T1235-800G-TR, T1210-800G-TR, and T2535-800G are RoHS3 compliant. BTA216B-800B,118 is RoHS compliant. All parts meet environmental compliance requirements.

Q: What is the operating temperature range for BTA216B-800B,118?

A: BTA216B-800B,118 specifies a maximum operating temperature of 125°C (TJ). The lower temperature bound is not specified in the provided data. Q8012NH5RP, T1235-800G-TR, T1210-800G-TR, and T2535-800G all specify -40°C to 125°C operating range.