CPH5518-TL-E Equivalent & Substitute Parts

Part Overview

The CPH5518-TL-E is a Bipolar (BJT) Transistor Array featuring complementary NPN and PNP (Emitter Coupled) configurations. This surface mount device operates at maximum collector-emitter breakdown voltages of 80V (NPN) and 50V (PNP) with a maximum collector current of 1A and transition frequency of 420MHz. The part is packaged in SOT-23-5 Thin (TSOT-23-5) configuration.

The CPH5518-TL-E carries an Obsolete product status. Locating equivalent or substitute components becomes necessary when original inventory is depleted or when design flexibility permits the use of active alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

CPH5518-TL-E

onsemiIn Stock: 1713CPH5518-TL-E Datasheet

Current PartRFQ

CPH5520-TL-E

onsemiIn Stock: 12458CPH5520-TL-E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CPH5518-TL-E is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Compatibility Parameters:

• Transistor Type: NPN, PNP (Emitter Coupled) configuration
• Package / Case: SOT-23-5 Thin (TSOT-23-5)
• Mounting Type: Surface Mount
• Voltage - Collector Emitter Breakdown: 80V (NPN), 50V (PNP)
• Frequency - Transition: 420MHz
• Power - Max: 1.2W
• Operating Temperature: 150°C (TJ)
• DC Current Gain (hFE) (Min): 200 @ 100mA, 2V

Allowable Parameter Variations: Substitute parts may exceed the maximum collector current (Ic) specification of the original part, provided all other electrical and mechanical parameters remain equivalent or superior. Increased current capability does not compromise circuit operation in applications designed for the original 1A specification.

The CPH5520-TL-E qualifies as a direct substitute based on these criteria. It maintains identical voltage ratings, frequency response, power dissipation, and thermal characteristics while providing enhanced current handling capability (2A maximum collector current).

Parameter Comparison

Engineering Selection Recommendations

CPH5520-TL-E as Primary Substitute:

The CPH5520-TL-E is the direct substitute for the CPH5518-TL-E. Both devices are manufactured by onsemi and share identical electrical specifications across voltage ratings, frequency response, power dissipation, and thermal operating range. The CPH5520-TL-E maintains the same SOT-23-5 Thin package and surface mount configuration, ensuring mechanical compatibility with existing PCB layouts.

The CPH5520-TL-E carries Active product status, providing long-term availability and supply chain stability compared to the Obsolete CPH5518-TL-E. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

The CPH5520-TL-E provides a maximum collector current rating of 2A, compared to 1A for the CPH5518-TL-E. This enhanced current capability does not introduce incompatibility; applications designed for the original 1A specification operate within the safe operating area of the substitute device. The increased current rating provides design margin and supports potential future circuit modifications without component replacement.

Both parts maintain identical DC current gain specifications (200 @ 100mA, 2V) and saturation voltage characteristics, ensuring functional equivalence in switching and amplification applications.

Frequently Asked Questions (FAQ)

Q: Can the CPH5520-TL-E directly replace the CPH5518-TL-E in existing designs?

A: Yes. The CPH5520-TL-E is electrically and mechanically compatible with the CPH5518-TL-E. Both devices feature identical voltage ratings (80V/50V), frequency response (420MHz), power dissipation (1.2W), and package configuration (SOT-23-5 Thin). The CPH5520-TL-E's higher current rating (2A vs. 1A) does not create incompatibility; circuits designed for 1A operation remain within the safe operating area of the substitute.

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

A: The CPH5520-TL-E provides a maximum collector current of 2A, while the CPH5518-TL-E is rated for 1A maximum collector current. All other electrical parameters, including voltage breakdown ratings, frequency response, power dissipation, and thermal characteristics, are identical. The CPH5520-TL-E also carries Active product status, ensuring continued availability.

Q: Are there packaging differences between the CPH5518-TL-E and CPH5520-TL-E?

A: No. Both parts use the SOT-23-5 Thin (TSOT-23-5) surface mount package. The CPH5518-TL-E is supplied in Cut Tape (CT) packaging, while the CPH5520-TL-E is supplied in Tape & Reel (TR) packaging. Both formats are compatible with standard PCB assembly processes. The physical component dimensions and pin configuration are identical.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both the CPH5518-TL-E and CPH5520-TL-E are ROHS3 Compliant and REACH Unaffected. Both parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Q: Why is the CPH5518-TL-E marked as Obsolete?

A: The CPH5518-TL-E carries Obsolete product status, indicating that onsemi has discontinued active production and support for this part number. The CPH5520-TL-E, with identical core functionality and enhanced current capability, serves as the active replacement in the product line.

Q: Are there any thermal or frequency limitations when substituting the CPH5520-TL-E?

A: No. Both parts operate at identical maximum junction temperatures (150°C) and transition frequencies (420MHz). The CPH5520-TL-E maintains the same thermal and frequency performance characteristics as the CPH5518-TL-E.