P4SMA62C Equivalent & Substitute Parts

Part Overview

The P4SMA62C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection in surface-mount applications. This part operates with a 53V reverse standoff voltage and provides 89.25V maximum clamping voltage at peak pulse current. The P4SMA62C is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	P4SMA62C
Manufacturer	Littelfuse
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Voltage - Reverse Standoff (Typ)	53V
Voltage - Breakdown (Min)	55.96V
Voltage - Clamping (Max) @ Ipp	89.25V
Current - Peak Pulse (10/1000µs)	4.8A
Power - Peak Pulse	400W
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature	-65°C ~ 150°C (TJ)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the P4SMA62C is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 53V
Voltage - Clamping (Max) @ Ipp: 85V–89.25V range
Current - Peak Pulse (10/1000µs): 4.8A
Power - Peak Pulse: 400W
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Bidirectional Channels: 1

Substitute parts are grouped into two categories based on voltage rating alignment:

Group 1: 53V Standoff Voltage (Direct Electrical Match)

P4SMA62CA (Eaton - Electronics Division)
SMAJP4KE62CA-TP (Micro Commercial Co)

These parts maintain the 53V reverse standoff voltage specification and are electrically equivalent for 53V protection circuits.

Group 2: Lower Voltage Ratings (5.8V Standoff)

P4SMA6.8CA-E3/5A (Vishay General Semiconductor)
P4SMA6.8CA-E3/61 (Vishay General Semiconductor)
P4SMA6.8CA-M3/5A (Vishay General Semiconductor)
P4SMA6.8CA-M3/61 (Vishay General Semiconductor)
SMAJP4KE6.8CA-TP (Micro Commercial Co)

These parts operate at 5.8V standoff voltage and are not electrically equivalent to the P4SMA62C. They are listed as cross-references but serve different voltage protection requirements.

Parameter Comparison

Parameter	P4SMA62C (Main)	P4SMA62CA	SMAJP4KE62CA-TP	P4SMA6.8CA-E3/61	SMAJP4KE6.8CA-TP
Manufacturer	Littelfuse	Eaton - Electronics Division	Micro Commercial Co	Vishay General Semiconductor	Micro Commercial Co
Product Status	Obsolete	Active	Active	Active	Active
Type	Zener	Zener	Zener	Zener	Zener
Voltage - Reverse Standoff (Typ)	53V	53V	53V	5.8V	5.8V
Voltage - Breakdown (Min)	55.96V	58.9V	58.9V	6.45V	6.45V
Voltage - Clamping (Max) @ Ipp	89.25V	85V	85V	10.5V	10.5V
Current - Peak Pulse (10/1000µs)	4.8A	4.8A	4.8A	38.1A	39A
Power - Peak Pulse	400W	400W	400W	400W	400W
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMAJ	DO-214AC, SMA	DO-214AC, SMAJ
Operating Temperature	-65°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 175°C	-65°C ~ 150°C	-55°C ~ 175°C
RoHS Status	ROHS3 Compliant	RoHS Compliant	Not specified	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

For Direct Electrical Replacement (53V Protection Circuits):

P4SMA62CA (Eaton - Electronics Division) is the primary recommended substitute. This part maintains identical voltage ratings (53V standoff, 85V clamping) and current specifications (4.8A peak pulse). The part is in active production status with high inventory availability (22,600 pcs). Operating temperature range is -55°C to 150°C, which covers most industrial applications. RoHS compliance is confirmed.

SMAJP4KE62CA-TP (Micro Commercial Co) provides an alternative with extended operating temperature range (-55°C to 175°C). The package variant is DO-214AC SMAJ instead of standard SMA, which may require PCB layout verification. Inventory is available (739 pcs).

For Lower Voltage Applications (5.8V Protection Circuits):

Parts in Group 2 (P4SMA6.8CA series and SMAJP4KE6.8CA-TP) are suitable only for circuits requiring 5.8V standoff voltage protection. These are not substitutes for the P4SMA62C in 53V protection applications.

Compliance Considerations:

All recommended substitutes maintain RoHS3 compliance or equivalent. Moisture sensitivity level is 1 (Unlimited) across all parts, indicating no special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can P4SMA62CA be used as a direct replacement for P4SMA62C?

A: Yes. P4SMA62CA maintains the same voltage ratings (53V standoff, 85V clamping) and current specifications (4.8A peak pulse). Both are DO-214AC SMA package surface-mount devices. The primary difference is manufacturer (Eaton vs. Littelfuse) and active production status.

Q: What is the difference between SMA and SMAJ package variants?

A: Both are DO-214AC surface-mount packages. SMA and SMAJ refer to supplier device package designations. SMAJ variants may have different lead geometry or tape-and-reel specifications. PCB footprint compatibility should be verified with component datasheets before substitution.

Q: Are the P4SMA6.8CA parts suitable replacements for P4SMA62C?

A: No. The P4SMA6.8CA series operates at 5.8V standoff voltage, while P4SMA62C operates at 53V. These parts serve different voltage protection requirements and are not electrically interchangeable.

Q: What is the operating temperature difference between substitutes?

A: P4SMA62C operates from -65°C to 150°C. P4SMA62CA operates from -55°C to 150°C (5°C narrower at low end). SMAJP4KE62CA-TP extends to -55°C to 175°C (25°C wider at high end). Application requirements determine which range is acceptable.

Q: Are all substitutes RoHS compliant?

A: P4SMA62CA and P4SMA6.8CA series are confirmed RoHS3 compliant. SMAJP4KE62CA-TP and SMAJP4KE6.8CA-TP do not specify RoHS status in provided data. Compliance verification with manufacturer documentation is recommended for regulated applications.

Q: What inventory levels are available for each substitute?

A: P4SMA62CA: 22,600 pcs. SMAJP4KE62CA-TP: 739 pcs. P4SMA6.8CA variants: 933–19,061 pcs depending on packaging option. SMAJP4KE6.8CA-TP: 957 pcs.

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