BYG10KHM3_A/I Equivalent & Substitute Parts

Part Overview

The BYG10KHM3_A/I is an 800 V, 1.5 A avalanche diode manufactured by Vishay General Semiconductor - Diodes Division in DO-214AC (SMA) surface mount package. This component is classified as Active product status and carries automotive-grade qualification (AEC-Q101). Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity while maintaining identical functional performance in circuit applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	800	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5	V @ A
Reverse Recovery Time (trr)	4	µs
Current - Reverse Leakage @ Vr	1	µA @ 800 V
Technology	Avalanche	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the BYG10KHM3_A/I are identified based on strict equivalence of the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 800 V
Current - Average Rectified (Io): 1.5 A
Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 1.5 A
Reverse Recovery Time (trr): 4 µs
Current - Reverse Leakage @ Vr: 1 µA @ 800 V
Technology: Avalanche
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical performance characteristics and mechanical compatibility with the main part number. Substitution is valid only when all parameters match exactly as specified.

Parameter Comparison

Parameter	BYG10KHM3_A/I	BYG10K-E3/TR3	BYG10KHE3_A/H
Voltage - DC Reverse (Vr) (Max)	800 V	800 V	800 V
Current - Average Rectified (Io)	1.5 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 1.5 A	1.15 V @ 1.5 A	1.15 V @ 1.5 A
Reverse Recovery Time (trr)	4 µs	4 µs	4 µs
Current - Reverse Leakage @ Vr	1 µA @ 800 V	1 µA @ 800 V	1 µA @ 800 V
Technology	Avalanche	Avalanche	Avalanche
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Grade	Automotive	Not specified	Automotive
Qualification	AEC-Q101	Not specified	AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

BYG10KHM3_A/I (Primary Part)

The BYG10KHM3_A/I is the primary reference part with full automotive qualification (AEC-Q101) and automotive-grade designation. This part is suitable for applications requiring automotive-level reliability and compliance.

BYG10K-E3/TR3 (Parametric Equivalent)

The BYG10K-E3/TR3 provides identical electrical and mechanical parameters to the main part. However, automotive grade and AEC-Q101 qualification are not specified for this variant. This part is suitable for non-automotive applications or where automotive qualification is not a requirement. Higher inventory availability (6560 pcs) may support supply chain needs.

BYG10KHE3_A/H (Parametric Equivalent)

The BYG10KHE3_A/H maintains full automotive-grade designation and AEC-Q101 qualification identical to the main part. All electrical and mechanical parameters are equivalent. This part carries the highest inventory level (15404 pcs) and is directly interchangeable for automotive applications.

Selection between these parts depends on application requirements: automotive-qualified designs should use BYG10KHM3_A/I or BYG10KHE3_A/H; non-automotive applications may use BYG10K-E3/TR3.

Frequently Asked Questions (FAQ)

Q: Can BYG10K-E3/TR3 be used as a direct replacement for BYG10KHM3_A/I in automotive applications?

A: BYG10K-E3/TR3 provides identical electrical performance and mechanical compatibility. However, automotive grade and AEC-Q101 qualification are not specified for this part. Use in automotive applications depends on whether your design requires automotive-level qualification. For designs with automotive qualification requirements, use BYG10KHE3_A/H instead.

Q: Are all substitute parts in the same DO-214AC package?

A: Yes. BYG10KHM3_A/I, BYG10K-E3/TR3, and BYG10KHE3_A/H are all packaged in DO-214AC (SMA) surface mount package with identical mechanical dimensions and land pattern compatibility.

Q: What is the difference between BYG10KHM3_A/I and BYG10KHE3_A/H?

A: Both parts are automotive-grade, AEC-Q101 qualified, and electrically identical with 800 V reverse voltage, 1.5 A average rectified current, and 4 µs reverse recovery time. The primary difference is inventory availability and internal manufacturing designation. Both are directly interchangeable for automotive applications.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. BYG10KHM3_A/I, BYG10K-E3/TR3, and BYG10KHE3_A/H are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What determines whether a part can substitute for BYG10KHM3_A/I?

A: Substitution is valid when the following parameters match exactly: reverse voltage (800 V), average rectified current (1.5 A), forward voltage (1.15 V @ 1.5 A), reverse recovery time (4 µs), reverse leakage current (1 µA @ 800 V), technology (Avalanche), package (DO-214AC, SMA), mounting type (Surface Mount), and operating temperature range (-55°C to 150°C). For automotive applications, automotive grade and AEC-Q101 qualification must also be present.

Q: Is the packaging format (Tape & Reel) identical across all parts?

A: BYG10KHM3_A/I and BYG10KHE3_A/H are supplied in Tape & Reel (TR) format. BYG10K-E3/TR3 is also supplied in Tape & Reel (TR) format. All three parts use identical packaging format suitable for automated assembly processes.

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