P6SMB160 Equivalent & Substitute Parts

Part Overview

The P6SMB160 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 136V reverse standoff voltage with a 229.95V maximum clamping voltage at peak pulse current and is housed in a DO-214AA (SMB) surface mount package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P6SMB160

Littelfuse Inc.In Stock: 1112P6SMB160 Datasheet

Current PartRFQ

P6SMB160A

Eaton - Electronics DivisionIn Stock: 47348P6SMB160A Datasheet

MFR RecommendedRFQ

P6SMB160A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1132P6SMB160A-E3/5B Datasheet

DirectRFQ

P6SMB160A

Eaton - Electronics DivisionIn Stock: 47348P6SMB160A Datasheet

MFR RecommendedRFQ

SMBJP6KE160A-TP

Micro Commercial CoIn Stock: 805SMBJP6KE160A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P6SMB160 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 136V
• Voltage - Clamping (Max) @ Ipp: Within acceptable range (219V–229.95V)
• Current - Peak Pulse (10/1000µs): 2.7A–2.8A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional

Substitute parts must maintain identical reverse standoff voltage and comparable clamping voltage performance to ensure functional equivalence in transient voltage suppression circuits. Peak pulse current and power dissipation ratings must remain within the specified range to preserve circuit protection characteristics.

Parameter Comparison

Engineering Selection Recommendations

P6SMB160A (Eaton - Electronics Division) is the primary recommended substitute. This part maintains identical reverse standoff voltage (136V), equivalent peak pulse current (2.8A), and matching power dissipation (600W). The component is in active production status with high inventory availability (47,300 pcs), ensuring long-term supply continuity. RoHS compliance and REACH unaffected status confirm regulatory alignment for current manufacturing standards.

P6SMB160A-E3/5B (Vishay General Semiconductor - Diodes Division) serves as a secondary substitute option. This part meets all critical electrical parameters with a marginally lower peak pulse current (2.7A) and provides an extended operating temperature range (-65°C to 150°C versus -55°C to 150°C). Active product status and ROHS3 compliance support modern design requirements. The DO-214AA (SMBJ) package designation confirms mechanical compatibility.

SMBJP6KE160A-TP (Micro Commercial Co) is an alternative substitute with equivalent electrical specifications (136V standoff, 2.8A peak pulse, 600W power). Extended temperature range (-65°C to 150°C) and active product status support deployment flexibility. Bulk packaging availability differs from tape & reel options, requiring procurement consideration.

All three substitute parts maintain functional equivalence to the obsolete P6SMB160 across critical transient voltage suppression parameters and surface mount package compatibility.

Frequently Asked Questions (FAQ)

Q: Can P6SMB160A directly replace P6SMB160 in existing designs?

A: Yes. Both parts share identical reverse standoff voltage (136V), equivalent peak pulse current (2.8A), and matching 600W power dissipation. The DO-214AA SMB package ensures mechanical and electrical compatibility without PCB redesign.

Q: What is the difference between the clamping voltage specifications (229.95V vs. 219V)?

A: The P6SMB160 specifies a maximum clamping voltage of 229.95V, while substitute parts specify 219V. Both values fall within acceptable transient suppression performance ranges for 136V standoff applications. The lower clamping voltage in substitutes provides marginally improved transient response characteristics.

Q: Are there temperature range considerations when selecting substitutes?

A: The original P6SMB160 operates from -55°C to 150°C. Substitute parts P6SMB160A-E3/5B and SMBJP6KE160A-TP extend the lower operating limit to -65°C, providing enhanced performance in cold-temperature environments. Standard temperature range (-55°C to 150°C) remains adequate for most general-purpose applications.

Q: Does packaging format affect substitution compatibility?

A: All substitute parts use DO-214AA SMB surface mount packages, ensuring PCB footprint compatibility. Packaging format differences (Tape & Reel versus Bulk) affect procurement and handling procedures but not electrical or mechanical performance.

Q: What compliance certifications should be verified for new designs?

A: All substitute parts maintain RoHS compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution. ROHS3 compliance is confirmed for Littelfuse and Vishay parts.

Q: Is the P6SMB160A-E3/5B peak pulse current (2.7A) sufficient as a substitute?

A: Yes. The 2.7A specification remains within acceptable tolerance for 136V standoff TVS diode applications. The 0.1A difference from the original 2.8A specification does not compromise transient voltage suppression functionality in standard circuit configurations.