P1553AARP Equivalent & Substitute Parts

Part Overview

The P1553AARP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. under the SIDACtor® series. This component is a 130V off-state, 150A peak pulse TVS thyristor in a 3-SIP TO-220 modified package designed for transient voltage protection applications. The P1553AARP is currently classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

P1553AARP

Littelfuse Inc.In Stock: 767P1553AARP Datasheet

Current PartRFQ

P1553AAL

Littelfuse Inc.In Stock: 5110P1553AAL Datasheet

DirectRFQ

P1553AALRP

Littelfuse Inc.In Stock: 986P1553AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P1553AARP is determined by electrical and mechanical parameter equivalence. The critical parameters defining substitutability are:

• Voltage ratings (breakover, off-state, and on-state)
• Peak pulse current specifications (8/20µs and 10/1000µs)
• Hold current (Ih)
• Number of elements (3-element configuration)
• Capacitance values
• Package type (3-SIP TO-220 Modified)
• Mounting configuration (Through Hole)

The substitute parts P1553AAL and P1553AALRP maintain identical electrical specifications and mechanical packaging to the P1553AARP. Both substitutes are manufactured by Littelfuse Inc. within the same SIDACtor® series. The primary differences between substitutes are packaging format (bulk versus tape & reel) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

Both P1553AAL and P1553AALRP are direct functional equivalents to the P1553AARP with identical electrical and mechanical specifications. Selection between these substitutes should be based on procurement requirements and compliance mandates.

P1553AAL is supplied in bulk packaging and is suitable for applications where individual component handling and custom packaging are acceptable. This option provides cost efficiency for high-volume procurement.

P1553AALRP is supplied in tape & reel format and is optimized for automated assembly processes. This packaging format is standard for production environments requiring pick-and-place equipment integration.

Both substitute parts carry ROHS3 compliance certification, whereas the original P1553AARP is RoHS non-compliant. This compliance upgrade makes both substitutes preferable for applications subject to RoHS regulatory requirements. Both substitutes maintain the same moisture sensitivity level (MSL 1 - Unlimited) as the original part.

Frequently Asked Questions (FAQ)

Q: Can P1553AAL and P1553AALRP be used interchangeably with P1553AARP?

A: Yes. Both parts are electrically and mechanically identical to the P1553AARP. The differences are packaging format (bulk versus tape & reel) and product status (active versus obsolete). Selection depends on procurement and assembly requirements.

Q: What is the difference between P1553AAL and P1553AALRP?

A: The primary difference is packaging. P1553AAL is supplied in bulk packaging, while P1553AALRP is supplied in tape & reel format. Electrical specifications and mechanical dimensions are identical. Tape & reel packaging is standard for automated assembly lines.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both P1553AAL and P1553AALRP are ROHS3 compliant. The original P1553AARP is RoHS non-compliant. This compliance upgrade is a key advantage of the substitute parts for applications subject to RoHS regulations.

Q: Will the substitute parts fit the same PCB footprint as the P1553AARP?

A: Yes. All three parts use the 3-SIP TO-220 Modified package with identical through-hole mounting configuration. PCB layout and footprint are unchanged.

Q: What is the inventory status of these parts?

A: P1553AARP (obsolete) has 682 units in stock. P1553AAL (active) has 5,100 units in stock. P1553AALRP (active) has 937 units in stock. Active parts are recommended for new procurement due to ongoing availability.