AP1212HSG-13 Equivalent & Substitute Parts

Part Overview

The AP1212HSG-13 is a Power Switch/Driver IC manufactured by Diodes Incorporated, configured as a 1:2 N-Channel USB Switch with 500mA output capacity in an 8-SOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The AP1212HSG-13 provides high-side N-Channel switching with integrated current limiting, over-temperature protection, and UVLO (Under-Voltage Lock-Out) fault protection. Its primary function is USB power switching applications requiring dual-output configuration with status flag feedback.

Substiute Parts

AP1212HSG-13

Diodes IncorporatedIn Stock: 2599AP1212HSG-13 Datasheet

Current PartRFQ

AP2156SG-13

Diodes IncorporatedIn Stock: 12914AP2156SG-13 Datasheet

MFR RecommendedRFQ

AP1212LSG-13

Diodes IncorporatedIn Stock: 2808AP1212LSG-13 Datasheet

Parametric EquivalentRFQ

LM3526M-H/NOPB

Texas InstrumentsIn Stock: 16211LM3526M-H/NOPB Datasheet

MFR RecommendedRFQ

LM3526M-L/NOPB

Texas InstrumentsIn Stock: 26857LM3526M-L/NOPB Datasheet

MFR RecommendedRFQ

LM3526MX-H/NOPB

Texas InstrumentsIn Stock: 35834LM3526MX-H/NOPB Datasheet

MFR RecommendedRFQ

LM3526MX-L/NOPB

Texas InstrumentsIn Stock: 42993LM3526MX-L/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP1212HSG-13 are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Number of Outputs: 2
• Ratio - Input:Output: 1:2
• Output Configuration: High Side
• Voltage - Load: 2.7V ~ 5.5V
• Current - Output (Max): 500mA
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Interface: On/Off
• Features: Status Flag
• Fault Protection: Current Limiting (Fixed), Over Temperature, UVLO

Substitution Categories:

Category 1: Direct N-Channel Equivalent (Parametric Match)

• AP1212LSG-13: Identical N-Channel configuration with matching electrical specifications and operating temperature range (-40°C ~ 125°C). Same product status (Obsolete) and MSL rating (3).

Category 2: P-Channel Alternatives (Channel Type Variation)

• AP2156SG-13: P-Channel variant from Diodes Incorporated with active product status. Maintains all critical electrical parameters (500mA, 2.7V ~ 5.5V, 1:2 ratio, High Side). Lower Rds On (100mOhm vs 110mOhm). Operating temperature reduced to -40°C ~ 85°C. MSL improved to 1 (Unlimited).
• LM3526M-H/NOPB, LM3526M-L/NOPB, LM3526MX-H/NOPB, LM3526MX-L/NOPB: P-Channel variants from Texas Instruments with active product status. All maintain identical electrical specifications and 1:2 configuration. Operating temperature extended to -40°C ~ 125°C (TJ). MSL rating 1 (Unlimited). Packaging variations: Tube (M-H, M-L) and Cut Tape/Digi-Reel (MX-H, MX-L).

All substitute parts maintain the same 8-SOIC package footprint, enabling direct PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Product Replacement: The AP1212HSG-13 is classified as obsolete. Active product alternatives are available from both Diodes Incorporated and Texas Instruments, all maintaining the same electrical specifications and package footprint.

Active Product Preference: All substitute parts listed (AP2156SG-13, LM3526M-H/NOPB, LM3526M-L/NOPB, LM3526MX-H/NOPB, LM3526MX-L/NOPB) carry active product status, ensuring long-term availability and manufacturing support.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory standing.

Moisture Sensitivity: Substitute parts from both manufacturers feature MSL rating 1 (Unlimited), providing improved moisture handling compared to the original part's MSL 3 (168 Hours) rating.

Channel Type Selection:

• N-Channel substitution: AP1212LSG-13 provides direct N-Channel equivalence but retains obsolete status.
• P-Channel substitution: All LM3526 variants and AP2156SG-13 offer active product status with improved electrical characteristics (100mOhm Rds On vs 110mOhm).

Packaging and Availability: Texas Instruments LM3526 variants offer multiple packaging options (Tube and Cut Tape/Digi-Reel) with higher inventory levels, supporting various procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can I directly replace AP1212HSG-13 with AP1212LSG-13? A: Yes. AP1212LSG-13 is a parametric equivalent with identical N-Channel configuration, electrical specifications, and operating temperature range. Both parts are obsolete; however, AP1212LSG-13 maintains the same functional characteristics for existing designs.

Q: What is the difference between N-Channel and P-Channel variants? A: The AP1212HSG-13 and AP1212LSG-13 are N-Channel switches, while AP2156SG-13 and all LM3526 variants are P-Channel switches. Both channel types maintain identical output current (500mA), voltage range (2.7V ~ 5.5V), and 1:2 switching ratio. Channel type selection depends on circuit topology and control signal polarity requirements.

Q: Are the Texas Instruments LM3526 variants interchangeable? A: Yes. LM3526M-H/NOPB, LM3526M-L/NOPB, LM3526MX-H/NOPB, and LM3526MX-L/NOPB are electrically identical. Differences are in packaging format (Tube vs Cut Tape/Digi-Reel) and temperature grade designation (H vs L). All maintain the same 8-SOIC footprint and electrical performance.

Q: Does the improved Rds On (100mOhm vs 110mOhm) in substitute parts affect circuit design? A: The 10mOhm reduction in on-resistance in P-Channel substitutes results in lower power dissipation and improved thermal performance. This is a beneficial characteristic requiring no circuit redesign.

Q: Are all substitute parts compatible with the same PCB layout? A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package, enabling direct footprint compatibility without PCB modifications.

Q: What is the significance of MSL rating differences? A: The original AP1212HSG-13 has MSL 3 (168 Hours), requiring moisture bake-out procedures before reflow soldering. All substitute parts feature MSL 1 (Unlimited), eliminating moisture sensitivity constraints and simplifying manufacturing processes.

Q: Which substitute part offers the best long-term availability? A: Texas Instruments LM3526MX-L/NOPB and LM3526MX-H/NOPB offer the highest inventory levels (42,900 and 35,800 units respectively) with active product status and Cut Tape/Digi-Reel packaging, supporting high-volume procurement requirements.