B530C-13 Schottky Diode 30V 5A SMC Equivalent & Substitute Parts

Part Overview

The B530C-13 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 30V DC reverse voltage and 5A average rectified current in a Surface Mount SMC (DO-214AB) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing production and repair applications. The B530C-13 operates across a junction temperature range of -55°C to 150°C and exhibits fast recovery characteristics suitable for high-frequency switching applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 5 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 30 V
Capacitance @ Vr, F	300	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—

Substitute Part Grouping Explanation

Substitution of the B530C-13 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 30V
Current - Average Rectified (Io): Must equal or exceed 5A
Voltage - Forward (Vf) (Max) @ If: Must not exceed 550 mV at rated current
Package / Case: Must be DO-214AB, SMC or equivalent surface mount form factor
Technology: Schottky diode type
Speed: Fast Recovery characteristic ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction: Must support -55°C to 150°C range

Substitute Classification:

Direct Equivalent (Identical Electrical & Mechanical Specifications):

B530C-13-F: Identical specifications with Tape & Reel packaging; Active product status; ROHS3 Compliant

Parametric Equivalent (Matching or Exceeding Core Ratings):

SK53L-TP: Matches 30V, 5A ratings; identical forward voltage; Tape & Reel packaging; Not For New Designs status
SK153-TP: Exceeds current rating (15A vs. 5A); matches 30V voltage; Obsolete status; higher reverse leakage (1 mA vs. 500 µA)

Voltage-Reduced Substitute (Lower Voltage Rating):

SK52L-TP: Reduced voltage rating (20V vs. 30V); matches 5A current; Not For New Designs status; suitable only for applications with maximum operating voltage ≤ 20V

Parameter Comparison

Parameter	B530C-13	B530C-13-F	SK53L-TP	SK153-TP	SK52L-TP
Manufacturer	Diodes Incorporated	Diodes Incorporated	Micro Commercial Co	Micro Commercial Co	Micro Commercial Co
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	20 V
Current - Average Rectified (Io)	5 A	5 A	5 A	15 A	5 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 5 A	550 mV @ 5 A	550 mV @ 5 A	550 mV @ 15 A	550 mV @ 5 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 30 V	500 µA @ 30 V	1 mA @ 30 V	1 mA @ 30 V	1 mA @ 20 V
Capacitance @ Vr, F	300 pF @ 4V, 1MHz	300 pF @ 4V, 1MHz	200 pF @ 4V, 1MHz	500 pF @ 4V, 1MHz	200 pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 125°C	-55 to 150°C
Product Status	Discontinued at DiGi Electronics	Active	Not For New Designs	Obsolete	Not For New Designs
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Selection: B530C-13-F

The B530C-13-F is the recommended substitute for new designs and ongoing production. This part is manufactured by Diodes Incorporated (original manufacturer of the B530C-13) and provides identical electrical and mechanical specifications. The B530C-13-F is currently Active in product status with ROHS3 compliance, addressing regulatory requirements absent in the discontinued B530C-13. Packaging is supplied in Tape & Reel format with 17,065 pieces in stock, ensuring supply chain continuity.

Secondary Selection: SK53L-TP

The SK53L-TP manufactured by Micro Commercial Co provides parametric equivalence with matching 30V and 5A ratings. This part is suitable for applications where the original manufacturer is not a requirement. However, SK53L-TP carries a "Not For New Designs" status and exhibits higher reverse leakage current (1 mA vs. 500 µA), which may impact performance in low-leakage applications. Operating temperature range remains -55°C to 150°C, maintaining thermal compatibility.

Conditional Selection: SK153-TP

The SK153-TP is suitable only for applications requiring current capacity exceeding 5A, as it provides 15A average rectified current. This part is Obsolete and carries higher reverse leakage (1 mA) and capacitance (500 pF) than the B530C-13. The maximum junction temperature is reduced to 125°C, limiting use in high-temperature environments. Selection of SK153-TP requires verification that the application circuit can tolerate increased capacitance and leakage characteristics.

Not Recommended: SK52L-TP

The SK52L-TP has a reduced voltage rating of 20V maximum reverse voltage, compared to the 30V specification of the B530C-13. This part is suitable only for applications with maximum operating voltage not exceeding 20V. Use of SK52L-TP in circuits designed for 30V operation creates risk of diode failure and circuit malfunction.

Frequently Asked Questions (FAQ)

Q: Can B530C-13-F be used as a direct replacement for B530C-13?

A: Yes. The B530C-13-F provides identical electrical specifications (30V, 5A, 550 mV forward voltage) and mechanical compatibility (DO-214AB SMC package). The primary difference is packaging format (Tape & Reel vs. bulk) and product status (Active vs. Discontinued). B530C-13-F is ROHS3 compliant, whereas B530C-13 is not.

Q: What is the difference between SK53L-TP and B530C-13?

A: SK53L-TP matches the core electrical ratings (30V, 5A, 550 mV forward voltage) and package type (DO-214AB SMC). Differences include: manufacturer (Micro Commercial Co vs. Diodes Incorporated), reverse leakage current (1 mA vs. 500 µA), capacitance (200 pF vs. 300 pF), and product status (Not For New Designs vs. Discontinued). SK53L-TP is ROHS3 compliant.

Q: Can SK52L-TP replace B530C-13 in all applications?

A: No. SK52L-TP has a maximum reverse voltage rating of 20V, compared to 30V for B530C-13. This part is suitable only for circuits with maximum operating voltage ≤ 20V. Use in 30V circuits creates overvoltage risk.

Q: Why does SK153-TP have higher current rating than B530C-13?

A: SK153-TP is rated for 15A average rectified current versus 5A for B530C-13. Higher current capacity results in increased reverse leakage (1 mA vs. 500 µA) and capacitance (500 pF vs. 300 pF). Selection of SK153-TP is appropriate only when the application requires current capacity exceeding 5A.

Q: What does "Not For New Designs" status mean?

A: "Not For New Designs" indicates the manufacturer has discontinued active development and support for the part. While existing inventory may be available, the part is not recommended for new circuit designs. Parts with this status may have limited availability and no guaranteed long-term supply.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts listed use the DO-214AB SMC surface mount package, which provides identical PCB footprint compatibility. No PCB redesign is required for substitution.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: RoHS compliance indicates the part meets Restriction of Hazardous Substances regulations. B530C-13-F, SK53L-TP, SK153-TP, and SK52L-TP are all ROHS3 compliant, whereas the original B530C-13 is not. For applications subject to RoHS requirements, compliant substitutes are mandatory.

Q: How does reverse leakage current affect circuit performance?

A: Reverse leakage current flows when the diode is reverse-biased. Higher leakage (1 mA in SK53L-TP vs. 500 µA in B530C-13) increases power dissipation and may affect precision analog circuits. For low-leakage applications, B530C-13-F is preferred.

Q: What is the operating temperature range difference between SK153-TP and B530C-13?

A: B530C-13 operates from -55°C to 150°C junction temperature. SK153-TP operates from -55°C to 125°C. Applications requiring operation above 125°C require B530C-13, B530C-13-F, SK53L-TP, or SK52L-TP.

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