AP431WL-7 Equivalent & Substitute Parts

Part Overview

The AP431WL-7 is a shunt voltage reference IC manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This adjustable shunt regulator provides a fixed output voltage of 2.495V with a maximum rating of 36V and supports output currents up to 200mA. The device is housed in an SC-59-3 (SOT-23-3) surface mount package.

The AP431WL-7 is currently listed as obsolete. Identifying equivalent and substitute parts is essential for design continuity, procurement planning, and ensuring long-term product availability for applications requiring adjustable shunt voltage reference functionality.

Substiute Parts

AP431WL-7

Diodes IncorporatedIn Stock: 15165AP431WL-7 Datasheet

Current PartRFQ

AP431WG-7

Diodes IncorporatedIn Stock: 18074AP431WG-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP431WL-7 is determined by strict equivalence across the following critical parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 2.495V
• Voltage - Output (Max): 36V
• Current - Output: 200mA
• Tolerance: ±1%
• Temperature Coefficient: 30ppm/°C
• Current - Cathode: 500µA
• Operating Temperature: -20°C ~ 85°C
• Package / Case: TO-236-3, SC-59, SOT-23-3

The AP431WG-7 is identified as a parametric equivalent. Both devices share identical electrical specifications and thermal characteristics, with the primary distinction being the supplier device package designation. The AP431WG-7 maintains full compatibility with applications originally designed for the AP431WL-7.

Additional substitute part numbers identified through cross-reference include TL431IDBZR, TL431AIDBZR, TL431IDBZT, TL431BIDBZT, and AS431BNTR-E1, which meet the specified electrical and mechanical parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

Both the AP431WL-7 and AP431WG-7 are classified as obsolete products. Selection between these devices should be based on current inventory availability and procurement lead times, as both maintain identical electrical specifications and compliance certifications.

The AP431WG-7 currently maintains higher inventory levels (18,008 pcs) compared to the AP431WL-7 (15,100 pcs), making it the preferred choice for new procurement activities.

Both devices are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The MSL rating of 3 (168 Hours) applies to both variants, requiring standard moisture control during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the AP431WG-7 be used as a direct replacement for the AP431WL-7?

A: Yes. The AP431WG-7 is a parametric equivalent with identical electrical specifications, output voltage range, current ratings, tolerance, temperature coefficient, and operating temperature range. Both devices use the same SC-59-3 package and are surface mount compatible.

Q: What is the difference between the AP431WL-7 and AP431WG-7?

A: The primary difference is the supplier device package designation. All electrical and thermal characteristics are identical. Both are obsolete products from Diodes Incorporated.

Q: Are there any package compatibility concerns when substituting these parts?

A: No. Both the AP431WL-7 and AP431WG-7 use the TO-236-3, SC-59, SOT-23-3 package format. PCB layouts and footprints remain unchanged during substitution.

Q: What compliance certifications apply to substitute parts?

A: Both the AP431WL-7 and AP431WG-7 are ROHS3 compliant and REACH unaffected. The MSL rating of 3 (168 Hours) applies to both devices.

Q: How should these components be stored given the MSL rating?

A: With an MSL rating of 3, these devices require storage in controlled humidity environments (typically below 30% relative humidity) for periods not exceeding 168 hours after exposure to ambient conditions. Standard moisture barrier packaging is required.