B320Q-13-F Equivalent & Substitute Parts

Part Overview

The B320Q-13-F is an active Schottky rectifier diode manufactured by Diodes Incorporated, rated for 20 V DC reverse voltage and 3 A average rectified current. The device is packaged in DO-214AB (SMC) surface mount configuration and qualifies for automotive applications under AEC-Q101 certification. This part is actively produced and maintained in inventory.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining compliance with applicable standards and certifications. Alternative models may be required due to supply constraints, lead time considerations, or specific application packaging requirements.

Substiute Parts

B320Q-13-F

Diodes IncorporatedIn Stock: 9469B320Q-13-F Datasheet

Current PartRFQ

SS32

MDDIn Stock: 19676SS32 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B320Q-13-F is determined by equivalence in the following critical electrical parameters:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Current - Average Rectified (Io): 3 A
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 500 µA @ 20 V
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SS32 manufactured by MDD meets all critical electrical performance criteria and compliance requirements. Substitution is valid when the application circuit design accommodates the package form factor difference (DO-214AB SMC versus DO-214AC SMA) and the operating temperature range variance (B320Q-13-F: -55°C to 150°C; SS32: -55°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

The SS32 is a valid parametric equivalent for the B320Q-13-F in applications where the following conditions are satisfied:

1. Package Compatibility: The circuit board layout and PCB footprint accommodate the DO-214AC (SMA) package form factor in place of DO-214AB (SMC). These packages have different physical dimensions and land patterns.

2. Temperature Operating Range: The application maximum junction temperature does not exceed 125°C. The B320Q-13-F supports operation to 150°C; the SS32 is rated to 125°C maximum.

3. Capacitance Tolerance: The application circuit design accepts the higher capacitance value of the SS32 (500 pF @ 4V, 1MHz) compared to the B320Q-13-F (200 pF @ 4V, 1MHz). Higher capacitance may affect high-frequency circuit performance.

4. Compliance Requirements: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard manufacturing and storage conditions.

The B320Q-13-F remains the preferred selection when automotive-grade AEC-Q101 qualification is a mandatory requirement, as this certification is explicitly stated for the B320Q-13-F and not provided in the SS32 specification data.

Frequently Asked Questions (FAQ)

Q: Can the SS32 be used as a direct replacement for the B320Q-13-F on the same PCB?

A: Direct PCB replacement is not possible without layout modification. The B320Q-13-F uses DO-214AB (SMC) packaging, while the SS32 uses DO-214AC (SMA) packaging. These packages have different physical dimensions and require different PCB footprints. PCB redesign or adapter solutions are necessary for substitution.

Q: What is the significance of the capacitance difference between these parts?

A: The SS32 has a capacitance of 500 pF @ 4V, 1MHz, compared to 200 pF @ 4V, 1MHz for the B320Q-13-F. In high-frequency switching applications, the higher capacitance of the SS32 may introduce additional parasitic effects. Circuit simulation or testing is appropriate to confirm performance in frequency-sensitive applications.

Q: Are both parts suitable for automotive applications?

A: The B320Q-13-F carries AEC-Q101 automotive qualification. The SS32 specification data does not include AEC-Q101 certification. For applications requiring automotive-grade qualification, the B320Q-13-F is the specified choice. The SS32 may be acceptable for non-automotive or less stringent applications.

Q: What is the maximum junction temperature difference between these parts?

A: The B320Q-13-F operates to -55°C to 150°C junction temperature range. The SS32 operates to -55°C to 125°C. Applications requiring sustained operation above 125°C junction temperature require the B320Q-13-F.

Q: Are both parts RoHS compliant?

A: Yes. Both the B320Q-13-F and SS32 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and handling requirements.

Q: What electrical parameters are identical between these parts?

A: The reverse voltage rating (20 V), average rectified current (3 A), reverse leakage current (500 µA @ 20 V), and fast recovery speed (≤ 500ns, > 200mA) are identical. Both are Schottky technology surface mount devices.