1SS184-TP Equivalent & Substitute Parts

Part Overview

The 1SS184-TP is a general-purpose diode array manufactured by Micro Commercial Co, configured as a 1 Pair Common Cathode device rated for 80V DC reverse voltage and 100mA average rectified current per diode. This surface mount component is housed in a TO-236-3 (SOT-23-3) package and is classified as a small signal rectifier diode. The part is currently in Active product status with 1079 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design requirements necessitate different thermal or automotive qualification characteristics while maintaining electrical compatibility.

Substiute Parts

1SS184-TP

Micro Commercial CoIn Stock: 11681SS184-TP Datasheet

Current PartRFQ

NSVM1MA152WAT1G

onsemiIn Stock: 945NSVM1MA152WAT1G Datasheet

SimilarRFQ

1SS184,LF

Toshiba Semiconductor and StorageIn Stock: 222711SS184,LF Datasheet

Parametric EquivalentRFQ

DAN202KFHT146

Rohm SemiconductorIn Stock: 3338DAN202KFHT146 Datasheet

Parametric EquivalentRFQ

DAN202KT146

Rohm SemiconductorIn Stock: 205339DAN202KT146 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1SS184-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - DC Reverse (Vr) (Max): 80V minimum
• Current - Average Rectified (Io) (per Diode): 100mA minimum
• Voltage - Forward (Vf) (Max) @ If: 1.2V @ 100mA maximum
• Speed Classification: Small Signal ≤200mA (Io)

Mechanical & Package Compatibility:

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Diode Configuration: 1 Pair Common Cathode (primary equivalents) or 1 Pair Common Anode (functional alternative with circuit design consideration)

Compliance & Environmental:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical and mechanical specifications with different packaging or manufacturer) and Functional Alternatives (same electrical ratings but different diode configuration requiring circuit design verification).

Parameter Comparison

Engineering Selection Recommendations

Primary Equivalent (Recommended for Direct Substitution):

The 1SS184,LF (Toshiba Semiconductor and Storage) is the primary parametric equivalent to the 1SS184-TP. This part maintains identical electrical specifications (80V reverse voltage, 100mA current rating, 1.2V forward voltage, 4ns reverse recovery time, 500nA reverse leakage) and identical diode configuration (1 Pair Common Cathode). The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) and supplier device package designation (S-Mini versus standard SOT-23). Both parts are Active status with ROHS3 compliance. The 1SS184,LF offers significantly higher inventory availability (22,199 units) compared to the main part.

Secondary Equivalents (Automotive-Qualified Alternatives):

The DAN202KFHT146 and DAN202KT146 (Rohm Semiconductor) are parametric equivalents with enhanced thermal performance and automotive qualification. Both maintain the 80V/100mA electrical specifications and Common Cathode configuration. Key differences include: (1) Operating temperature junction maximum of 150°C versus 125°C, (2) AEC-Q101 automotive qualification (DAN202KFHT146 only), (3) Reverse leakage of 100nA @ 70V (lower than the main part's 500nA @ 80V). The DAN202KT146 offers the highest inventory availability (205,245 units) among all substitutes. These parts are suitable for applications requiring extended thermal margins or automotive-grade reliability.

Functional Alternative (Configuration Difference):

The NSVM1MA152WAT1G (onsemi) provides electrical equivalence but with a different diode configuration (1 Pair Common Anode versus Common Cathode). This part is not a direct pin-compatible substitute and requires circuit design verification. It is currently in Last Time Buy status, indicating discontinued production. Selection of this part is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can I use the 1SS184,LF as a direct replacement for the 1SS184-TP?

A: Yes. The 1SS184,LF is a parametric equivalent with identical electrical specifications and diode configuration. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both parts are pin-compatible in the TO-236-3 (SOT-23-3) package and require no circuit modifications.

Q: What is the difference between the DAN202KFHT146 and DAN202KT146?

A: Both parts are electrically and mechanically identical with 80V reverse voltage, 100mA current rating, and Common Cathode configuration. The primary difference is packaging format: DAN202KFHT146 is supplied in Tape & Reel (TR), while DAN202KT146 is supplied in Cut Tape (CT) & Digi-Reel®. The DAN202KFHT146 includes AEC-Q101 automotive qualification; the DAN202KT146 does not specify this qualification.

Q: Why do the Rohm parts (DAN202 series) have lower reverse leakage current than the main part?

A: The DAN202KFHT146 and DAN202KT146 specify 100nA reverse leakage @ 70V, compared to the 1SS184-TP's 500nA @ 80V. This represents improved leakage characteristics and is a beneficial parameter difference. Lower reverse leakage does not prevent substitution; it indicates superior performance in this specification.

Q: Can I use the NSVM1MA152WAT1G as a substitute?

A: The NSVM1MA152WAT1G is not recommended as a direct substitute. Although it maintains the same electrical ratings (80V, 100mA), it has a different diode configuration (1 Pair Common Anode versus Common Cathode). This configuration difference affects circuit connectivity and requires design verification. Additionally, this part is in Last Time Buy status, indicating end-of-life production.

Q: What packaging formats are available for equivalent parts?

A: Equivalent parts are available in two packaging formats: Tape & Reel (TR) for high-volume automated assembly, and Cut Tape (CT) & Digi-Reel® for lower-volume or mixed-component applications. All parts use the same physical package (TO-236-3, SC-59, SOT-23-3) and are mechanically interchangeable.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (1SS184,LF, DAN202KFHT146, DAN202KT146, and NSVM1MA152WAT1G) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the main part.

Q: Which substitute part offers the best thermal performance?

A: The DAN202KFHT146 and DAN202KT146 offer the highest operating temperature junction maximum of 150°C, compared to 125°C for the 1SS184-TP and 1SS184,LF. This 25°C thermal margin improvement is beneficial for applications operating at elevated ambient temperatures or with high power dissipation.

Q: What is the inventory status of each substitute part?

A: The 1SS184,LF (Toshiba) has the highest availability with 22,199 units in stock. The DAN202KT146 (Rohm) offers 205,245 units. The DAN202KFHT146 (Rohm) has 3,283 units. The NSVM1MA152WAT1G (onsemi) has 924 units but is in Last Time Buy status. The main part (1SS184-TP) has 1,079 units available.