PVT322APBF Equivalent & Substitute Parts

Part Overview

The PVT322APBF is a solid-state relay (SSR) manufactured by Infineon Technologies, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-DIP through-hole package. This component is designed for switching applications with AC and DC loads up to 250V at 170mA maximum load current, controlled by a 1.2VDC input signal.

The PVT322APBF is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value
Manufacturer	Infineon Technologies
Series	PVT, HEXFET®
Circuit Configuration	SPST-NO (1 Form A) x 2
Output Type	AC, DC
Voltage - Input	1.2VDC
Voltage - Load	0 V ~ 250 V
Load Current	170 mA
On-State Resistance (Max)	8 Ohms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the PVT322APBF is determined by strict equivalence across the following critical parameters:

Circuit configuration: SPST-NO (1 Form A) x 2 channels
Electrical ratings: 1.2VDC input, 0–250V load voltage, 170mA maximum load current
On-state resistance: 8 Ohms maximum
Output capability: AC and DC load switching
Compliance: ROHS3 Compliant, REACH Unaffected

The PVT322ASPBF qualifies as a direct substitute based on identical electrical specifications and functional performance. The primary difference is the mounting technology: the substitute uses surface-mount (SMD) termination instead of through-hole (DIP) termination, and packaging format changes from tube to bulk. These differences do not affect electrical equivalence but require PCB design and assembly process adaptation.

Parameter Comparison

Parameter	PVT322APBF (Main Part)	PVT322ASPBF (Substitute)
Manufacturer	Infineon Technologies	Infineon Technologies
Series	PVT, HEXFET®	PVT, HEXFET®
Circuit Configuration	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2
Output Type	AC, DC	AC, DC
Voltage - Input	1.2VDC	1.2VDC
Voltage - Load	0 V ~ 250 V	0 V ~ 250 V
Load Current	170 mA	170 mA
On-State Resistance (Max)	8 Ohms	8 Ohms
Mounting Type	Through Hole	Surface Mount
Package / Case	8-DIP (0.300", 7.62mm)	8-SMD (0.300", 7.62mm)
Termination Style	PC Pin	Gull Wing
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	4 (72 Hours)

Engineering Selection Recommendations

The PVT322ASPBF is the manufacturer-recommended substitute for the obsolete PVT322APBF. Both components maintain identical electrical performance and compliance certifications (ROHS3 Compliant, REACH Unaffected).

Selection between these parts depends on PCB assembly methodology:

Through-hole assembly: The PVT322APBF remains suitable for legacy systems or boards designed for DIP mounting, though supply is limited (669 pcs available).
Surface-mount assembly: The PVT322ASPBF is the preferred choice for new designs or production transitions, with active product status and higher inventory availability (1542 pcs available).

The PVT322ASPBF introduces a higher moisture sensitivity level (MSL 4 vs. MSL 1), requiring controlled storage conditions (72-hour floor life after moisture exposure). This is a standard consideration for surface-mount components and does not affect electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can the PVT322ASPBF directly replace the PVT322APBF in an existing circuit?

A: Yes, electrically. Both components have identical input voltage (1.2VDC), load voltage range (0–250V), load current (170mA), and on-state resistance (8 Ohms). However, PCB layout and assembly process must accommodate the change from through-hole DIP to surface-mount SMD termination.

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

A: The mounting technology differs. The PVT322APBF uses through-hole PC pins for DIP sockets; the PVT322ASPBF uses surface-mount gull-wing leads for reflow soldering. Electrical specifications are identical.

Q: Why is the PVT322APBF classified as obsolete?

A: The PVT322APBF has been superseded by the surface-mount variant (PVT322ASPBF) as manufacturing has transitioned to SMD assembly methods. The through-hole version remains available in limited quantities but is no longer in active production.

Q: Does the moisture sensitivity difference affect substitution?

A: The PVT322ASPBF has MSL 4 (72-hour floor life) compared to MSL 1 (unlimited) for the PVT322APBF. This requires proper moisture control during storage and assembly but does not affect electrical performance or functional equivalence.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 Compliant and REACH Unaffected, maintaining identical regulatory status.

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