BT169DEP Equivalent & Substitute Parts

Part Overview

The BT169DEP is a sensitive gate silicon-controlled rectifier (SCR) rated for 400 V off-state voltage and 800 mA RMS on-state current in a TO-92-3 through-hole package. This component is designed for applications requiring controlled AC switching and phase control in industrial and consumer electronics. The part maintains active product status with 6400 units in current inventory. Substitute parts are identified when electrical parameters, thermal ratings, package compatibility, and compliance certifications align with the original specification, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

BT169DEP

WeEn SemiconductorsIn Stock: 6503BT169DEP Datasheet

Current PartRFQ

BT169D,112

WeEn SemiconductorsIn Stock: 5115BT169D,112 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BT169DEP is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Off-state voltage must equal 400 V
• Current Rating: On-state RMS current must equal 800 mA
• Gate Characteristics: Gate trigger voltage (Vgt) and gate trigger current (Igt) must not exceed 800 mV and 200 µA respectively
• On-State Performance: Forward voltage drop (Vtm) must not exceed 1.7 V
• Hold Current: Must not exceed 5 mA
• Package Compatibility: Must use TO-92-3 through-hole configuration
• SCR Type: Must be sensitive gate classification
• Product Status: Must maintain active status

The BT169D,112 meets all substitution criteria as a parametric equivalent manufactured by WeEn Semiconductors with identical electrical specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the BT169DEP and BT169D,112 are active products manufactured by WeEn Semiconductors with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability: BT169DEP has 6400 units in stock, while BT169D,112 has 5100 units available. Both parts carry Moisture Sensitivity Level 1 (Unlimited) and comply with ECCN EAR99 classification. The BT169D,112 additionally carries RoHS3 compliance and REACH Unaffected status, providing enhanced environmental documentation for applications requiring regulatory compliance verification.

Frequently Asked Questions (FAQ)

Q: Can BT169D,112 be used as a direct replacement for BT169DEP?

A: Yes. Both parts are parametric equivalents with identical voltage ratings (400 V), current ratings (800 mA RMS), gate characteristics, on-state performance, and TO-92-3 package configuration. No circuit modifications are required.

Q: Are there differences in compliance certifications between these parts?

A: The BT169D,112 includes documented RoHS3 compliance and REACH Unaffected status. The BT169DEP does not list these certifications in the provided data. Applications requiring explicit environmental compliance documentation should reference the BT169D,112.

Q: What determines if a part can substitute for the BT169DEP?

A: Substitution requires matching specifications across off-state voltage (400 V), RMS on-state current (800 mA), gate trigger parameters (800 mV / 200 µA maximum), on-state voltage drop (1.7 V maximum), hold current (5 mA maximum), package type (TO-92-3), and SCR classification (sensitive gate).

Q: Are there inventory considerations for selecting between these parts?

A: BT169DEP has higher current inventory (6400 units) compared to BT169D,112 (5100 units). For high-volume applications, BT169DEP availability may provide supply chain advantages.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Both parts use identical TO-92-3 through-hole packaging with the same pin configuration and footprint requirements. No PCB layout modifications are necessary.