J176_D26Z Equivalent & Substitute Parts

Part Overview

The J176_D26Z is a P-Channel JFET transistor manufactured by onsemi, designed for through-hole applications in the TO-92-3 package. This device operates at 30 V breakdown voltage with 350 mW maximum power dissipation and is suitable for analog switching and amplification circuits. The J176_D26Z is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

J176_D26Z

onsemiIn Stock: 897J176_D26Z Datasheet

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MMBFJ176

onsemiIn Stock: 32312MMBFJ176 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the J176_D26Z is determined by electrical parameter equivalence across the following criteria:

• P-Channel FET topology
• 30 V breakdown voltage (V(BR)GSS)
• 2 mA drain current specification (Idss @ Vds, Vgs=0)
• 1 V cutoff voltage (VGS off @ Id)
• 250 Ohms on-resistance (RDS(On))
• Operating temperature range of -55°C to 150°C

The MMBFJ176 meets all electrical specifications of the J176_D26Z. The primary difference is packaging: MMBFJ176 uses surface-mount SOT-23-3 configuration versus the through-hole TO-92-3 of the J176_D26Z. This distinction affects board layout and assembly methodology but does not alter electrical performance or functional compatibility in circuit design.

Parameter Comparison

Engineering Selection Recommendations

The MMBFJ176 is the direct electrical equivalent to the J176_D26Z. Selection between these parts depends on assembly and design constraints:

• MMBFJ176 is recommended for new designs and production continuity. This part is active in the onsemi product line, ensuring long-term availability. It carries ROHS3 compliance certification, meeting current environmental and regulatory standards. The surface-mount SOT-23-3 package is standard in modern PCB assembly processes.

• J176_D26Z is obsolete and should not be selected for new applications. Existing through-hole designs may continue operation with this part only while inventory remains available.

The maximum power rating difference (350 mW versus 225 mW) reflects package thermal characteristics. Circuit designs operating within 225 mW dissipation limits experience no functional impact when transitioning from J176_D26Z to MMBFJ176.

Frequently Asked Questions (FAQ)

Q: Can MMBFJ176 replace J176_D26Z in existing circuits?

A: Yes, electrically. The MMBFJ176 provides identical electrical performance. Board-level integration requires conversion from through-hole to surface-mount assembly. Schematic and functional operation remain unchanged.

Q: What is the significance of the power rating difference?

A: J176_D26Z is rated 350 mW; MMBFJ176 is rated 225 mW. This reflects thermal dissipation capability of each package. Circuits designed within 225 mW operating limits experience no performance degradation. Designs requiring higher power dissipation must remain on J176_D26Z or select alternative devices.

Q: Are there compliance differences between these parts?

A: MMBFJ176 carries ROHS3 compliance certification. J176_D26Z compliance status is not specified. Both parts are REACH Unaffected and carry EAR99 export classification.

Q: Why is J176_D26Z obsolete?

A: Through-hole TO-92-3 packaging has been superseded by surface-mount alternatives in modern manufacturing. onsemi maintains MMBFJ176 as the active product line continuation.

Q: Can I use MMBFJ176 in a through-hole socket?

A: No. MMBFJ176 is surface-mount only. Through-hole designs require either J176_D26Z (while available) or redesign for surface-mount assembly.