ZTX968STOB Equivalent & Substitute Parts

Part Overview

The ZTX968STOB is a Bipolar (BJT) Transistor with PNP configuration manufactured by Diodes Incorporated. This component is rated for 12 V collector-emitter breakdown voltage and 4.5 A maximum collector current, designed for through-hole mounting in E-Line (TO-92 compatible) packaging. The ZTX968STOB is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

ZTX968STOB

Diodes IncorporatedIn Stock: 785ZTX968STOB Datasheet

Current PartRFQ

ZTX968STZ

Diodes IncorporatedIn Stock: 1094ZTX968STZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZTX968STOB is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Must Match):

• Transistor Type: PNP configuration
• Current - Collector (Ic) (Max): 4.5 A
• Voltage - Collector Emitter Breakdown (Max): 12 V
• Vce Saturation (Max) @ Ib, Ic: 300mV @ 200mA, 5A
• Current - Collector Cutoff (Max): 50nA (ICBO)
• DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 500mA, 1V
• Power - Max: 1.58 W
• Frequency - Transition: 80MHz
• Operating Temperature: -55°C ~ 200°C (TJ)

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: E-Line-3, Formed Leads
• Supplier Device Package: E-Line (TO-92 compatible)

The ZTX968STZ meets all electrical and mechanical parameter requirements for direct substitution. The primary distinction between these parts is packaging format and product status, with ZTX968STZ available in active production status.

Parameter Comparison

Engineering Selection Recommendations

The ZTX968STZ is the direct functional equivalent to the ZTX968STOB. Both components share identical electrical specifications, mechanical dimensions, and thermal characteristics. The ZTX968STZ is manufactured by the same supplier (Diodes Incorporated) and maintains full compliance with ROHS3 and REACH regulatory requirements.

The primary advantage of selecting ZTX968STZ is its active product status, ensuring long-term availability and supply chain continuity. The ZTX968STOB, classified as obsolete, presents supply risk and potential discontinuation of manufacturing.

Both parts maintain identical moisture sensitivity levels (MSL 1 - Unlimited) and environmental compliance certifications, eliminating any regulatory or handling differences in component procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can ZTX968STZ be used as a direct replacement for ZTX968STOB in existing designs?

A: Yes. The ZTX968STZ is electrically and mechanically identical to the ZTX968STOB. All electrical parameters, including collector current rating (4.5 A), breakdown voltage (12 V), saturation voltage, current gain, and frequency response are equivalent. The through-hole E-Line (TO-92 compatible) package dimensions and lead configuration are identical, enabling direct PCB mounting without design modification.

Q: What is the difference between ZTX968STOB and ZTX968STZ packaging?

A: The ZTX968STOB is supplied in standard packaging format, while the ZTX968STZ is supplied in Tape & Box (TB) format. This difference affects only the delivery and handling method; the component itself and its electrical performance remain unchanged. Tape & Box packaging is standard for high-volume production environments.

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

A: No. Both ZTX968STOB and ZTX968STZ maintain identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and MSL 1 (Unlimited moisture sensitivity level). No additional handling, storage, or assembly procedures are required when transitioning between these parts.

Q: Why is the ZTX968STOB classified as obsolete?

A: The ZTX968STOB has reached end-of-life status in the manufacturer's product portfolio. The ZTX968STZ remains in active production and is the current manufacturing equivalent. For new designs and ongoing production, ZTX968STZ is the recommended selection.

Q: Are the thermal characteristics identical between these parts?

A: Yes. Both parts operate across the identical temperature range (-55°C to 200°C junction temperature) and dissipate the same maximum power (1.58 W). Thermal management considerations and heat sink requirements, if applicable, remain unchanged.

Q: Can inventory of ZTX968STOB be used interchangeably with ZTX968STZ in production?

A: Yes. From an electrical and mechanical standpoint, ZTX968STOB inventory can be used interchangeably with ZTX968STZ in production assembly. However, as ZTX968STOB is obsolete, existing inventory should be consumed first, with transition to ZTX968STZ for ongoing procurement to ensure supply continuity.