B170B-13-F Equivalent & Substitute Parts

Part Overview

The B170B-13-F is an active Schottky rectifier diode manufactured by Diodes Incorporated, designed for surface mount applications in the DO-214AA (SMB) package. This component operates at 70 V DC reverse voltage with 1 A average rectified current and features fast recovery characteristics suitable for high-frequency switching applications. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	70	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	500	µA @ 70 V
Capacitance @ Vr, F	80	pF @ 4V, 1MHz
Operating Temperature - Junction	-65 to 150	°C
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Technology	Schottky	—

Substitute Part Grouping Explanation

Substitution of the B170B-13-F is determined by strict equivalence across all critical electrical parameters: reverse voltage rating (70 V), average rectified current (1 A), forward voltage drop (790 mV @ 1 A), recovery speed (fast recovery ≤ 500ns), reverse leakage current (500 µA @ 70 V), and junction capacitance (80 pF @ 4V, 1MHz). Mechanical compatibility requires identical package designation (DO-214AA, SMB) and surface mount mounting type. All substitute parts must maintain the same operating temperature range (-65°C to 150°C) and Schottky technology classification. RoHS3 compliance and MSL Level 1 rating are preserved across all equivalent parts.

Parameter Comparison

Parameter	B170B-13-F	B170BQ-13-F
Manufacturer	Diodes Incorporated	Diodes Incorporated
Category	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	70 V	70 V
Current - Average Rectified (Io)	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	790 mV @ 1 A	790 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 70 V	500 µA @ 70 V
Capacitance @ Vr, F	80 pF @ 4V, 1MHz	80 pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C to 150°C	-65°C to 150°C
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Packaging	Tape & Reel (TR)	Tape & Reel (TR)
Qualification	—	AEC-Q101

Engineering Selection Recommendations

The B170B-13-F and B170BQ-13-F are electrically and mechanically equivalent Schottky rectifier diodes with identical performance specifications across all critical parameters. Both parts maintain active product status and full RoHS3 compliance. The B170BQ-13-F variant includes AEC-Q101 automotive qualification, which designates it for automotive-grade applications requiring enhanced reliability and qualification testing. Selection between these parts depends on application requirements: the B170B-13-F is suitable for general industrial and commercial surface mount rectifier applications, while the B170BQ-13-F is specified for automotive and mission-critical environments where AEC-Q101 qualification is mandated. Both parts are supplied in identical Tape & Reel packaging with MSL Level 1 moisture sensitivity rating, permitting unlimited shelf life under controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can B170BQ-13-F replace B170B-13-F in existing designs?

A: Yes. The B170BQ-13-F is a direct electrical and mechanical equivalent with identical voltage, current, forward drop, recovery speed, and package specifications. The primary difference is AEC-Q101 automotive qualification on the B170BQ-13-F variant. Substitution is valid for applications not requiring automotive certification.

Q: What is the significance of AEC-Q101 qualification on the B170BQ-13-F?

A: AEC-Q101 is an automotive industry qualification standard indicating the part has undergone enhanced reliability testing and qualification procedures specific to automotive applications. This certification is required for automotive-grade component selection but does not alter the electrical performance characteristics.

Q: Are the package and mounting specifications identical between B170B-13-F and B170BQ-13-F?

A: Yes. Both parts use the DO-214AA (SMB) surface mount package and are supplied in Tape & Reel format. Mechanical compatibility and PCB footprint requirements are identical.

Q: What is the operating temperature range for both parts?

A: Both B170B-13-F and B170BQ-13-F operate across a junction temperature range of -65°C to 150°C, supporting industrial and automotive temperature environments.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The B170BQ-13-F includes AEC-Q101 automotive qualification. All other regulatory and compliance attributes are identical.

Q: What is the moisture sensitivity level for these diodes?

A: Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, permitting indefinite shelf life when stored under controlled conditions without baking requirements.

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