MMBD914_D87Z Equivalent & Substitute Parts

Part Overview

The MMBD914_D87Z is a general-purpose rectifier diode manufactured by onsemi, rated for 100 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design requirements and production continuity. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with comparable performance characteristics within defined parameter tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	V @ mA
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	5 µA @ 75 V	µA @ V
Capacitance @ Vr, F	4 pF @ 0V, 1MHz	pF @ V, MHz
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	150	°C
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution of the MMBD914_D87Z is determined by the following critical parameters: reverse voltage rating (Vr), average rectified current (Io), forward voltage (Vf), reverse recovery time (trr), package type, and mounting configuration. Parts are grouped into three categories based on substitution compatibility:

Category 1: Direct Equivalents (Identical Electrical and Mechanical Specifications) Parts in this category maintain all key electrical parameters and the SOT-23-3 package configuration. These parts are interchangeable with the MMBD914_D87Z without circuit redesign.

Category 2: Functional Equivalents (Matching Core Ratings with Minor Parameter Variations) Parts in this category meet or exceed the primary electrical requirements (Vr ≥ 100 V, Io ≥ 200 mA) and maintain the SOT-23-3 package. Minor variations in secondary parameters such as reverse leakage current or capacitance are acceptable within standard engineering practice.

Category 3: Parametric Alternatives (Different Voltage or Current Ratings) Parts in this category provide alternative voltage or current ratings suitable for applications with relaxed specifications. These require circuit evaluation before substitution.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [V @ mA]	trr [ns]	Ir @ Vr [µA @ V]	Package	Product Status
MMBD914_D87Z	onsemi	100	200	1 @ 10	4	5 @ 75	SOT-23-3	Obsolete
MMBD914LT1G	onsemi	100	200	1 @ 10	4	5 @ 75	SOT-23-3	Active
MMBD914LT3G	onsemi	100	200	1 @ 10	4	5 @ 75	SOT-23-3	Active
SMMBD914LT1G	onsemi	100	200	1 @ 10	4	5 @ 75	SOT-23-3	Active
SMMBD914LT3G	onsemi	100	200	1 @ 10	4	5 @ 75	SOT-23-3	Active
MMBD1201	onsemi	100	200	1 @ 200	4	50 nA @ 50	SOT-23-3	Active
MMBD914-7-F	Diodes Incorporated	75	300	1.25 @ 150	4	1 @ 75	SOT-23-3	Active
MMBD914-TP	Micro Commercial Co	75	150	0.855 @ 10	4	25 nA @ 20	SOT-23-3	Active
PMBD6050,215	NXP Semiconductors	70	215	1.25 @ 150	4	100 nA @ 50	TO-236AB	Active
PMBD6050,235	Nexperia USA Inc.	70	215	1.25 @ 150	4	100 nA @ 50	TO-236AB	Active
PMBD914,215	NXP Semiconductors	100	215	1.25 @ 150	4	1 @ 75	TO-236AB	Active

Engineering Selection Recommendations

Primary Substitutes (Category 1: Direct Equivalents)

MMBD914LT1G, MMBD914LT3G, SMMBD914LT1G, and SMMBD914LT3G are direct electrical and mechanical equivalents of the MMBD914_D87Z. All four parts are manufactured by onsemi, maintain identical voltage and current ratings, and are packaged in SOT-23-3 configuration. The primary distinction among these parts is packaging format: MMBD914LT1G and MMBD914LT3G are standard onsemi variants in Cut Tape and Tape & Reel formats respectively, while SMMBD914LT1G and SMMBD914LT3G are surface-mount variants also available in Tape & Reel format. All four parts carry Active product status and ROHS3 compliance, making them suitable for direct replacement in existing designs.

Secondary Substitutes (Category 2: Functional Equivalents)

MMBD1201 is a parametric equivalent manufactured by onsemi with identical voltage and current ratings. This part differs in forward voltage measurement conditions (1 V @ 200 mA versus 1 V @ 10 mA) and exhibits lower reverse leakage current (50 nA @ 50 V versus 5 µA @ 75 V). The MMBD1201 is suitable for applications where lower leakage characteristics are beneficial. PMBD914,215 manufactured by NXP Semiconductors provides 100 V reverse voltage rating with 215 mA current capacity, exceeding the 200 mA specification of the MMBD914_D87Z. This part is available in TO-236AB package format and carries Active product status with ROHS3 compliance.

Alternative Substitutes (Category 3: Parametric Alternatives)

MMBD914-7-F (Diodes Incorporated), MMBD914-TP (Micro Commercial Co), PMBD6050,215 (NXP Semiconductors), and PMBD6050,235 (Nexperia USA Inc.) provide reduced voltage ratings (75 V or 70 V) compared to the 100 V specification of the MMBD914_D87Z. These parts are suitable only for applications where the lower reverse voltage rating is acceptable. MMBD914-7-F and MMBD914-TP maintain SOT-23-3 package compatibility, while PMBD6050 variants use TO-236AB packaging. All alternative substitutes carry Active product status and appropriate compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can MMBD914LT1G, MMBD914LT3G, SMMBD914LT1G, and SMMBD914LT3G be used interchangeably with MMBD914_D87Z?

A: Yes. These four parts are direct electrical and mechanical equivalents. All maintain 100 V reverse voltage, 200 mA current rating, and SOT-23-3 package configuration. The differences are packaging formats (Cut Tape, Tape & Reel, or surface-mount variants) and supplier availability. Selection depends on procurement and assembly requirements.

Q: What is the difference between MMBD914LT1G and MMBD914LT3G?

A: Both parts are electrically identical. MMBD914LT1G is supplied in Cut Tape (CT) & Digi-Reel format, while MMBD914LT3G is supplied in Tape & Reel (TR) format. The choice depends on assembly equipment compatibility and volume requirements.

Q: Is MMBD1201 a suitable replacement for MMBD914_D87Z?

A: MMBD1201 is a parametric equivalent with identical voltage and current ratings. It exhibits lower reverse leakage current (50 nA @ 50 V versus 5 µA @ 75 V), which may be advantageous in low-leakage applications. Both parts are manufactured by onsemi and packaged in SOT-23-3. Substitution is acceptable without circuit modification.

Q: Can parts with lower voltage ratings (75 V or 70 V) replace the 100 V MMBD914_D87Z?

A: Parts such as MMBD914-7-F, MMBD914-TP, PMBD6050,215, and PMBD6050,235 have reduced reverse voltage ratings. These are suitable only if the application circuit operates at voltages below the reduced rating. Circuit evaluation is required before substitution.

Q: What is the significance of the SMMBD914 prefix versus MMBD914?

A: Both MMBD914 and SMMBD914 series maintain identical electrical specifications and SOT-23-3 packaging. The SMMBD914 designation indicates a surface-mount variant. Both are suitable for direct substitution based on electrical compatibility.

Q: Are NXP PMBD914,215 and onsemi MMBD914LT1G interchangeable?

A: Both parts maintain 100 V reverse voltage and exceed 200 mA current requirements. However, PMBD914,215 uses TO-236AB package format while MMBD914LT1G uses SOT-23-3. Physical package dimensions differ, requiring PCB layout verification before substitution. Electrical performance is compatible.

Q: What compliance certifications apply to substitute parts?

A: MMBD914LT1G, MMBD914LT3G, SMMBD914LT1G, SMMBD914LT3G, MMBD1201, MMBD914-7-F, MMBD914-TP, and PMBD914,215 carry ROHS3 compliance. PMBD6050,215 and PMBD6050,235 carry ROHS3 compliance. All parts are REACH Unaffected. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all listed parts.

Q: Which substitute part offers the best availability?

A: PMBD6050,215 (NXP Semiconductors) has the highest inventory level at 401,086 pieces. MMBD914LT1G (onsemi) has 324,662 pieces in stock. Both parts are suitable for high-volume procurement requirements.

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