TIP117 TIN/LEAD Equivalent & Substitute Parts

Part Overview

The TIP117 TIN/LEAD is a Bipolar (BJT) Transistor with PNP - Darlington configuration manufactured by Central Semiconductor Corp. This component is rated for 100 V collector-emitter breakdown voltage and operates across a temperature range of -65°C to 150°C. The device is packaged in TO-220-3 through-hole format with a transition frequency of 25 MHz.

The TIP117 TIN/LEAD is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this Darlington transistor.

Substiute Parts

TIP117 TIN/LEAD

Central Semiconductor CorpIn Stock: 1117TIP117 TIN/LEAD Datasheet

Current PartRFQ

BDX33CG

onsemiIn Stock: 2052BDX33CG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TIP117 TIN/LEAD requires evaluation of electrical and mechanical compatibility based on the following critical parameters:

Electrical Compatibility Criteria:

• Voltage - Collector Emitter Breakdown (Max): 100 V minimum
• Vce Saturation (Max): 2.5 V or lower at specified base and collector currents
• DC Current Gain (hFE): Minimum 750 at rated collector current and voltage
• Operating Temperature Range: -65°C to 150°C (TJ)
• Package / Case: TO-220-3 through-hole configuration

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Supplier Device Package: TO-220 or TO-220-3

The BDX33CG is identified as a substitute part. While the BDX33CG is an NPN - Darlington configuration (opposite polarity to the PNP TIP117), it meets the electrical performance envelope and physical packaging requirements for applications where polarity inversion is acceptable or where circuit topology permits NPN substitution.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TIP117 TIN/LEAD is classified as obsolete. The BDX33CG is an active product manufactured by onsemi, ensuring ongoing availability and supply chain continuity.

Compliance Status: The TIP117 TIN/LEAD is RoHS non-compliant. The BDX33CG is ROHS3 compliant, meeting current regulatory requirements for electronic component procurement in regulated industries and markets.

Electrical Performance: Both devices share identical voltage ratings (100 V collector-emitter breakdown) and saturation voltage characteristics (2.5 V maximum). The BDX33CG provides higher collector current capability (10 A maximum versus 2 A) and greater power dissipation capacity (70 W), offering enhanced performance margin for applications within the TIP117's original current specification.

Physical Compatibility: Both components utilize TO-220-3 through-hole packaging, ensuring mechanical and thermal interface compatibility with existing PCB designs and heat sink mounting arrangements.

Polarity Consideration: The BDX33CG is NPN - Darlington, while the TIP117 TIN/LEAD is PNP - Darlington. Substitution requires circuit topology verification to confirm that NPN polarity is functionally acceptable for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the BDX33CG directly replace the TIP117 TIN/LEAD without circuit modification?

A: Direct replacement is possible only if the circuit topology permits NPN - Darlington operation in place of PNP - Darlington. The polarity difference requires evaluation of bias networks, signal paths, and load configurations. Physical package compatibility (TO-220-3) and electrical ratings (100 V, 2.5 V saturation) are equivalent.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Voltage - Collector Emitter Breakdown rating of 100 V or higher, (2) Vce Saturation (Max) of 2.5 V or lower, (3) DC Current Gain (hFE) minimum of 750, (4) Operating Temperature Range of -65°C to 150°C (TJ), and (5) TO-220-3 through-hole package configuration.

Q: Does the BDX33CG's higher current rating (10 A versus 2 A) affect substitution suitability?

A: Higher current rating does not preclude substitution for applications operating within the TIP117's 2 A specification. The BDX33CG provides additional performance margin and thermal headroom. Circuit design must ensure that base drive current and power dissipation remain within specified limits.

Q: What is the significance of RoHS compliance difference between these parts?

A: The TIP117 TIN/LEAD is RoHS non-compliant, while the BDX33CG is ROHS3 compliant. For new designs or procurement in regulated markets, the BDX33CG meets current environmental and material restriction requirements. Existing designs using the TIP117 may continue operation without modification.

Q: Are there thermal management differences between the TIP117 TIN/LEAD and BDX33CG?

A: Both devices utilize identical TO-220-3 packaging with equivalent thermal interface characteristics. The BDX33CG's higher power rating (70 W) provides greater thermal capacity, but thermal management requirements depend on actual circuit operating conditions and heat sink design.

Q: What inventory and supply considerations apply to these parts?

A: The TIP117 TIN/LEAD is obsolete with 1057 pieces in stock. The BDX33CG is an active product with 2008 pieces in stock, ensuring long-term availability and supply chain reliability for ongoing production and future orders.