P4SMA480C Equivalent & Substitute Parts

Part Overview

The P4SMA480C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component operates with a reverse standoff voltage of 408V and provides 400W peak pulse power dissipation in a compact DO-214AC (SMA) package.

The P4SMA480C is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	408	V
Voltage - Breakdown (Min)	433.2	V
Voltage - Clamping (Max) @ Ipp	690.9	V
Current - Peak Pulse (10/1000µs)	600	mA
Power - Peak Pulse	400	W
Operating Temperature Range	-65 to 150	°C (TJ)
Package / Case	DO-214AC (SMA)	—
Mounting Type	Surface Mount	—
Type	Zener	—
Bidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the P4SMA480C are qualified based on the following electrical and mechanical parameters:

Reverse standoff voltage: 408V (Typ)
Peak pulse current: 600mA
Peak pulse power: 400W
Package type: DO-214AC (SMA) or equivalent
Bidirectional configuration: 1 channel
Zener diode type
General-purpose application classification

Two substitute parts meet these criteria:

P4SMA480CA (Littelfuse Inc.) — Direct manufacturer equivalent with active product status
SMAJP4KE480CA-TP (Micro Commercial Co) — Manufacturer-recommended alternative with extended operating temperature range

Parameter Comparison

Parameter	P4SMA480C	P4SMA480CA	SMAJP4KE480CA-TP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Micro Commercial Co
Product Status	Obsolete	Active	Active
Voltage - Reverse Standoff (Typ)	408V	408V	408V
Voltage - Breakdown (Min)	433.2V	456V	456V
Voltage - Clamping (Max) @ Ipp	690.9V	658V	658V
Current - Peak Pulse (10/1000µs)	600mA	600mA	600mA
Power - Peak Pulse	400W	400W	400W
Operating Temperature Range	-65 to 150°C (TJ)	-65 to 150°C (TJ)	-55 to 175°C (TJ)
Package / Case	DO-214AC (SMA)	DO-214AC (SMA)	DO-214AC (SMAJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Type	Zener	Zener	Zener
Bidirectional Channels	1	1	1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	—	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

P4SMA480CA is the primary substitute for the obsolete P4SMA480C. Both components are manufactured by Littelfuse Inc. and share identical electrical specifications and operating temperature ranges. The P4SMA480CA is in active production status with substantial inventory availability (24,050 pcs), ensuring long-term supply continuity. Both parts are ROHS3 compliant and carry the same ECCN and HTSUS classifications.

SMAJP4KE480CA-TP is a manufacturer-recommended alternative from Micro Commercial Co. This part maintains all critical electrical parameters (reverse standoff voltage, peak pulse current, and power dissipation) and offers an extended operating temperature range (-55 to 175°C vs. -65 to 150°C). The component is ROHS3 compliant and REACH unaffected. The package designation differs slightly (DO-214AC SMAJ vs. SMA), though both are surface-mount variants of the same physical form factor suitable for standard PCB assembly processes.

Selection between P4SMA480CA and SMAJP4KE480CA-TP depends on application-specific temperature requirements and supply chain preferences. Both parts satisfy the electrical and mechanical requirements of the P4SMA480C.

Frequently Asked Questions (FAQ)

Q: Can P4SMA480CA be used as a direct replacement for P4SMA480C?

A: Yes. The P4SMA480CA shares identical reverse standoff voltage (408V), peak pulse current (600mA), peak pulse power (400W), and operating temperature range (-65 to 150°C) with the P4SMA480C. Both use the DO-214AC (SMA) package and are surface-mount components. The primary difference is product status: P4SMA480C is obsolete while P4SMA480CA is in active production.

Q: What are the differences between P4SMA480CA and SMAJP4KE480CA-TP?

A: Both parts maintain the same reverse standoff voltage (408V), peak pulse current (600mA), and power dissipation (400W). The SMAJP4KE480CA-TP offers an extended operating temperature range (-55 to 175°C vs. -65 to 150°C) and is manufactured by Micro Commercial Co rather than Littelfuse Inc. The package designation is DO-214AC (SMAJ) versus DO-214AC (SMA), though both are compatible with standard surface-mount assembly.

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

A: All three parts (P4SMA480C, P4SMA480CA, and SMAJP4KE480CA-TP) are ROHS3 compliant. The P4SMA480CA and SMAJP4KE480CA-TP both carry REACH Unaffected status. All parts share the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Does the package variant (SMA vs. SMAJ) affect PCB assembly compatibility?

A: Both DO-214AC (SMA) and DO-214AC (SMAJ) are surface-mount packages with identical physical dimensions and footprints. Standard PCB assembly equipment and reflow processes accommodate both variants without modification.

Q: What is the voltage clamping difference between the main part and substitutes?

A: The P4SMA480C specifies a maximum clamping voltage of 690.9V at peak pulse current, while both P4SMA480CA and SMAJP4KE480CA-TP specify 658V. This difference reflects manufacturing tolerance variations within the same device class and does not affect functional substitution for general-purpose transient voltage suppression applications.

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