ZTX560STOB Equivalent & Substitute Parts

Part Overview

The ZTX560STOB is a Bipolar (BJT) Transistor manufactured by Diodes Incorporated, classified as a PNP-type device rated for 500 V collector-emitter breakdown voltage and 150 mA maximum collector current. The device is packaged in an E-Line (TO-92 compatible) through-hole configuration with a maximum power dissipation of 1 W and transition frequency of 60 MHz.

The ZTX560STOB carries an Obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability for production, and support ongoing maintenance of systems utilizing this transistor.

Substiute Parts

ZTX560STOB

Diodes IncorporatedIn Stock: 875ZTX560STOB Datasheet

Current PartRFQ

ZTX560STZ

Diodes IncorporatedIn Stock: 887ZTX560STZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ZTX560STOB is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Must Match):

• Transistor Type: PNP
• Maximum Collector Current (Ic): 150 mA
• Maximum Collector-Emitter Breakdown Voltage: 500 V
• Vce Saturation: 500 mV @ 10 mA, 50 mA
• Maximum Collector Cutoff Current: 100 nA
• Minimum DC Current Gain (hFE): 80 @ 50 mA, 10 V
• Maximum Power Dissipation: 1 W
• Transition Frequency: 60 MHz
• Operating Temperature Range: -55°C to 150°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)

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The ZTX560STZ qualifies as a direct substitute based on complete electrical and mechanical parameter equivalence. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The ZTX560STZ is a direct electrical and mechanical equivalent to the ZTX560STOB. All critical parameters—including collector current rating, breakdown voltage, saturation characteristics, current gain, power dissipation, transition frequency, and operating temperature range—are identical between the two devices.

The ZTX560STZ carries an Active product status, ensuring ongoing availability and manufacturing support from Diodes Incorporated. This contrasts with the ZTX560STOB, which is classified as Obsolete.

Both devices maintain identical compliance certifications: ROHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited). These certifications satisfy regulatory and environmental requirements for both new designs and legacy system maintenance.

The packaging format differs between the two parts: the ZTX560STOB is supplied in bulk format, while the ZTX560STZ is supplied in Tape & Box (TB) format. This distinction affects procurement and assembly processes but does not impact electrical performance or mechanical fit within through-hole PCB applications.

For applications requiring the ZTX560STOB, the ZTX560STZ provides complete functional and physical compatibility with the added benefit of active product status and assured long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the ZTX560STZ be used as a direct replacement for the ZTX560STOB in existing designs?

A: Yes. The ZTX560STZ is electrically and mechanically equivalent to the ZTX560STOB. All electrical parameters, including collector current, breakdown voltage, saturation characteristics, current gain, power rating, and frequency response, are identical. Both devices use the same E-Line (TO-92 compatible) through-hole package with formed leads, ensuring identical PCB footprint and lead spacing.

Q: What is the primary difference between these two parts?

A: The ZTX560STOB is classified as Obsolete, while the ZTX560STZ is Active. Additionally, the ZTX560STOB is supplied in bulk packaging, whereas the ZTX560STZ is supplied in Tape & Box (TB) format. These differences do not affect electrical performance or physical compatibility.

Q: Are there any compliance or certification differences between the ZTX560STOB and ZTX560STZ?

A: No. Both devices are ROHS3 compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Regulatory and environmental compliance is identical between the two parts.

Q: Will the ZTX560STZ fit the same PCB footprint as the ZTX560STOB?

A: Yes. Both devices are packaged in E-Line-3 with formed leads, which is compatible with standard TO-92 through-hole PCB layouts. Lead spacing, diameter, and forming are identical, ensuring direct mechanical compatibility.

Q: Why should I select the ZTX560STZ over the ZTX560STOB?

A: The ZTX560STZ carries an Active product status, ensuring continued manufacturing and availability from Diodes Incorporated. The ZTX560STOB is Obsolete and subject to discontinuation. For new designs and ongoing production, the ZTX560STZ is the recommended selection.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both devices share identical specifications across all measured parameters: 150 mA maximum collector current, 500 V breakdown voltage, 500 mV saturation voltage at specified conditions, 80 minimum DC current gain, 1 W power dissipation, 60 MHz transition frequency, and -55°C to 150°C operating temperature range.

Q: What is the difference between bulk and Tape & Box (TB) packaging?

A: Bulk packaging supplies components loose or in trays, typically used for manual assembly or small-volume applications. Tape & Box (TB) packaging supplies components on continuous tape wound on reels, optimized for automated pick-and-place assembly equipment. The electrical and mechanical properties of the component are unchanged; only the delivery format differs.