BT169G-L,412 Equivalent & Substitute Parts

Part Overview

The BT169G-L,412 is a sensitive gate SCR (Silicon Controlled Rectifier) rated for 600V off-state voltage with 800mA RMS current capability in a TO-92-3 through-hole package. Manufactured by WeEn Semiconductors, this thyristor is designed for applications requiring controlled rectification and switching at moderate voltage and current levels. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary due to supply chain constraints, regional availability, or inventory management requirements while maintaining equivalent electrical and mechanical performance within the specified parameter ranges.

Substiute Parts

BT169G-L,412

WeEn SemiconductorsIn Stock: 954BT169G-L,412 Datasheet

Current PartRFQ

X00602MA 1AA2

STMicroelectronicsIn Stock: 7623X00602MA 1AA2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The X00602MA 1AA2 manufactured by STMicroelectronics qualifies as a direct substitute for the BT169G-L,412 based on the following substitution criteria:

Electrical Parameter Compatibility:

• Off-state voltage rating: 600V (identical)
• Gate trigger voltage: 800mV maximum (identical)
• RMS current capability: 800mA (identical)
• On-state voltage: 1.35V maximum (within acceptable range; lower than 1.7V specification)
• SCR type: Sensitive Gate (identical)

Mechanical & Package Compatibility:

• Package: TO-92-3 through-hole (identical)
• Mounting type: Through Hole (identical)

Compliance & Status:

• Product status: Active (both parts)
• RoHS3 compliance: Yes (both parts)
• REACH status: Unaffected (both parts)
• Moisture sensitivity: MSL 1 (both parts)

The substitute part meets or exceeds the electrical requirements of the original specification while maintaining identical mechanical and thermal interface characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the BT169G-L,412 and X00602MA 1AA2 are active production parts with full RoHS3 compliance and REACH unaffected status, making either suitable for new designs and production applications.

The X00602MA 1AA2 offers an extended operating temperature range (-40°C to 125°C) compared to the BT169G-L,412 specification (125°C TJ), providing additional thermal margin for applications operating in lower ambient conditions.

The on-state voltage of the X00602MA 1AA2 (1.35V maximum) is lower than the BT169G-L,412 (1.7V maximum), resulting in reduced power dissipation during conduction. This characteristic is advantageous for thermal management in current-limited applications.

Selection between these parts should be based on supply availability, lead time requirements, and regional sourcing preferences, as both meet the core electrical and mechanical specifications for 600V sensitive gate SCR applications in TO-92-3 packaging.

Frequently Asked Questions (FAQ)

Q: Can the X00602MA 1AA2 be used as a direct replacement for the BT169G-L,412 in existing designs?

A: Yes. Both parts share identical off-state voltage (600V), gate trigger voltage (800mV), RMS current rating (800mA), package type (TO-92-3), and SCR classification (Sensitive Gate). The substitute part meets all critical electrical and mechanical interface requirements.

Q: What are the differences in gate trigger current between these parts?

A: The BT169G-L,412 specifies a maximum gate trigger current (Igt) of 50µA, while the X00602MA 1AA2 specifies 200µA maximum. Both values fall within acceptable ranges for sensitive gate SCR applications. The higher Igt specification of the substitute part does not prevent substitution but indicates slightly different gate sensitivity characteristics.

Q: Does the lower on-state voltage of the X00602MA 1AA2 affect circuit performance?

A: The X00602MA 1AA2 on-state voltage maximum of 1.35V is lower than the BT169G-L,412 specification of 1.7V. This results in lower forward voltage drop during conduction, reducing power dissipation. Circuits designed for the higher voltage specification will operate within acceptable parameters with the substitute part.

Q: Are both parts suitable for new product designs?

A: Yes. Both the BT169G-L,412 and X00602MA 1AA2 are active production parts with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1), making them appropriate for new designs and manufacturing.

Q: What is the significance of the extended temperature range of the X00602MA 1AA2?

A: The X00602MA 1AA2 operates from -40°C to 125°C, while the BT169G-L,412 is specified to 125°C junction temperature. The extended lower temperature range of the substitute part provides additional operational margin for applications in cold environments or with stringent thermal requirements.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.30.0080) classifications. Compliance and regulatory status are equivalent.