MMBD7000 Equivalent & Substitute Parts Reference

Part Overview

The MMBD7000 is a general-purpose diode array in a 1 Pair Series Connection configuration, rated for 100 V DC reverse voltage and 200 mA average rectified current per diode. Manufactured by onsemi, this component is packaged in SOT-23-3 (TO-236-3, SC-59) surface mount format with small signal switching characteristics and 4 ns reverse recovery time.

The MMBD7000 has reached obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements. Substitute components must maintain electrical compatibility across voltage, current, and thermal specifications while preserving mechanical fit within the SOT-23-3 package footprint.

Key Parameters

Parameter	Value	Unit	Condition
Diode Configuration	1 Pair Series Connection	—	—
Voltage - DC Reverse (Vr) (Max)	100	V	—
Current - Average Rectified (Io) (per Diode)	200	mA	—
Voltage - Forward (Vf) (Max)	1.1	V	@ 100 mA
Reverse Recovery Time (trr)	4	ns	—
Current - Reverse Leakage @ Vr	500	nA	@ 100 V
Operating Temperature - Junction (Max)	150	°C	—
Mounting Type	Surface Mount	—	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—	—
Technology	Standard	—	—
Speed Classification	Small Signal ≤ 200mA (Io), Any Speed	—	—
RoHS Status	ROHS3 Compliant	—	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—	—

Substitute Part Grouping Explanation

Substitution eligibility for the MMBD7000 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Configuration: Must be 1 Pair Series Connection
Voltage - DC Reverse (Vr) (Max): Must be ≥ 100 V
Current - Average Rectified (Io) (per Diode): Must be ≥ 200 mA
Package / Case: Must be TO-236-3, SC-59, SOT-23-3
Mounting Type: Must be Surface Mount
RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max): Acceptable range 1.0 V to 1.25 V @ specified test current
Reverse Recovery Time (trr): Must be ≤ 4 ns
Operating Temperature - Junction: Must support minimum -55°C to 150°C range
Current - Reverse Leakage @ Vr: Must not exceed 5 µA @ rated voltage

Substitute parts are classified into two categories:

Direct Substitutes (Electrical and Mechanical Equivalence): Parts meeting all primary criteria with identical or superior electrical performance within acceptable tolerance bands. These parts are pin-compatible and footprint-compatible with the MMBD7000.

Similar Substitutes (Functional Equivalence with Parameter Variations): Parts meeting primary mechanical and configuration criteria but with minor deviations in secondary parameters such as forward voltage, reverse leakage current, or current rating. These parts require design verification to confirm suitability for specific circuit applications.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [mA]	Vf (Max) [V]	Vf Test Condition	trr [ns]	Ir @ Vr [nA/µA]	Ir Test Condition	Tj (Max) [°C]	Product Status	Package
MMBD7000	onsemi	100	200	1.1	@ 100 mA	4	500 nA	@ 100 V	150	Obsolete	SOT-23-3
MMBD7000LT1G	onsemi	100	200	1.1	@ 100 mA	4	3 µA	@ 100 V	150	Active	SOT-23-3
MMBD7000LT3G	onsemi	100	200	1.1	@ 100 mA	4	3 µA	@ 100 V	150	Active	SOT-23-3
MMBD7000-E3-08	Vishay General Semiconductor - Diodes Division	100	200	1.1	@ 100 mA	4	3 µA	@ 100 V	150	Active	SOT-23-3
MMBD7000-TP	Micro Commercial Co	100	200	0.82	@ 10 mA	4	1 µA	@ 50 V	150	Active	SOT-23-3
MMBD7000_R1_00001	Panjit International Inc.	100	200	1.1	@ 100 mA	4	3 µA	@ 100 V	150	Active	SOT-23-3
PMBD7000,215	Nexperia USA Inc.	100	215	1.25	@ 150 mA	4	500 nA	@ 100 V	150	Active	SOT-23-3
PMBD7000,235	NXP USA Inc.	100	215	1.25	@ 150 mA	4	500 nA	@ 100 V	150	Active	SOT-23-3
SMBD7000E6327HTSA1	Infineon Technologies	100	200	1.25	@ 150 mA	4	500 nA	@ 100 V	150	Last Time Buy	SOT-23-3
MMBD4148SE RFG	Taiwan Semiconductor Corporation	100	200	1.0	@ 10 mA	4	5 µA	@ 75 V	150	Active	SOT-23-3
MMBD7000-7-F	Diodes Incorporated	75	300	1.25	@ 150 mA	4	1 µA	@ 50 V	150	Active	SOT-23-3

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Recommended for Immediate Replacement):

MMBD7000LT1G, MMBD7000LT3G, and MMBD7000-E3-08 are direct electrical and mechanical equivalents to the obsolete MMBD7000. These parts maintain identical voltage (100 V), current (200 mA), forward voltage (1.1 V @ 100 mA), and reverse recovery time (4 ns) specifications. All three are Active product status components with ROHS3 compliance and SOT-23-3 packaging. MMBD7000LT1G and MMBD7000LT3G are manufactured by onsemi, the original MMBD7000 manufacturer, ensuring design continuity. MMBD7000-E3-08 is supplied by Vishay General Semiconductor - Diodes Division. These parts are suitable for direct PCB footprint replacement without circuit modification.

Tier 2 - Functional Equivalents with Minor Parameter Variations:

MMBD7000_R1_00001 (Panjit International Inc.), MMBD7000-TP (Micro Commercial Co), PMBD7000,215 and PMBD7000,235 (Nexperia/NXP), and SMBD7000E6327HTSA1 (Infineon Technologies) meet primary substitution criteria with acceptable secondary parameter deviations. MMBD7000_R1_00001 and PMBD7000,215/,235 offer enhanced current ratings (215 mA) compared to the 200 mA specification, providing design margin. MMBD7000-TP exhibits lower forward voltage (0.82 V @ 10 mA) and reduced reverse leakage (1 µA @ 50 V), suitable for low-power applications. SMBD7000E6327HTSA1 carries Last Time Buy status; procurement should prioritize active alternatives. All Tier 2 parts maintain 100 V reverse voltage rating and SOT-23-3 packaging.

Tier 3 - Limited Compatibility:

MMBD4148SE RFG (Taiwan Semiconductor Corporation) and MMBD7000-7-F (Diodes Incorporated) meet mechanical and configuration requirements but exhibit parameter deviations requiring design verification. MMBD4148SE RFG maintains 100 V rating and 200 mA current but is classified as Fast Recovery (≤ 500 ns, > 200 mA) rather than Small Signal. MMBD7000-7-F operates at reduced reverse voltage (75 V) with elevated current rating (300 mA), suitable only for applications with voltage margins below 100 V. These parts are not recommended for direct substitution without circuit analysis.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status, matching the original MMBD7000 certifications. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0070.

Frequently Asked Questions (FAQ)

Q1: Can MMBD7000LT1G and MMBD7000LT3G be used interchangeably with the obsolete MMBD7000?

A: Yes. Both MMBD7000LT1G and MMBD7000LT3G are direct electrical and mechanical equivalents. They maintain identical voltage (100 V), current (200 mA), forward voltage (1.1 V @ 100 mA), and reverse recovery time (4 ns) specifications. Both are manufactured by onsemi in Active product status with SOT-23-3 packaging. No circuit modification is required for substitution.

Q2: What is the difference between MMBD7000LT1G and MMBD7000LT3G?

A: Both parts are electrically identical with matching specifications. The designation suffix (LT1G vs. LT3G) indicates different manufacturing date codes or tape reel configurations. For circuit performance, they are functionally equivalent and interchangeable.

Q3: Why do some substitute parts have higher current ratings (215 mA) than the original MMBD7000 (200 mA)?

A: Parts such as PMBD7000,215 and PMBD7000,235 offer enhanced current capacity while maintaining the same 100 V reverse voltage rating. Higher current ratings provide design margin and are suitable for applications where the original 200 mA specification is marginal. These parts are backward-compatible with designs requiring 200 mA operation.

Q4: Is MMBD7000-7-F a suitable substitute for the MMBD7000?

A: MMBD7000-7-F is not recommended as a direct substitute. While it maintains SOT-23-3 packaging and 4 ns reverse recovery time, it operates at reduced reverse voltage (75 V vs. 100 V) and elevated current (300 mA vs. 200 mA). Substitution requires design verification to confirm that circuit voltage stress does not exceed 75 V. Use only if application voltage margins permit.

Q5: Can MMBD4148SE RFG replace the MMBD7000?

A: MMBD4148SE RFG is not recommended for direct substitution. Although it maintains 100 V reverse voltage and 200 mA current ratings in SOT-23-3 packaging, it is classified as Fast Recovery (≤ 500 ns, > 200 mA) rather than Small Signal. This speed classification difference may affect circuit switching behavior. Substitution requires circuit analysis and testing.

Q6: What is the significance of "Last Time Buy" status for SMBD7000E6327HTSA1?

A: Last Time Buy status indicates that Infineon Technologies has announced end-of-life for this component. While SMBD7000E6327HTSA1 is electrically equivalent to the MMBD7000, procurement should prioritize Active status alternatives such as MMBD7000LT1G, MMBD7000LT3G, or MMBD7000-E3-08 to ensure long-term supply chain stability.

Q7: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance, matching the original MMBD7000 certification. All parts are also classified as Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected.

Q8: Can substitute parts be mixed on the same PCB assembly?

A: Yes. All recommended Tier 1 and Tier 2 substitute parts are mechanically and electrically compatible within the SOT-23-3 footprint. Mixed sourcing from multiple manufacturers is acceptable provided all parts meet the specified electrical parameters. Verify component availability and lead times before committing to mixed-source designs.

Q9: What forward voltage variation should be expected among substitute parts?

A: Forward voltage specifications range from 0.82 V (MMBD7000-TP @ 10 mA) to 1.25 V (PMBD7000,215 and PMBD7000,235 @ 150 mA). The original MMBD7000 specifies 1.1 V @ 100 mA. Variations reflect different test conditions and manufacturing processes. For precision analog circuits, verify forward voltage specifications against circuit design requirements.

Q10: Is package compatibility guaranteed for all substitute parts?

A: Yes. All substitute parts in this reference are specified for TO-236-3, SC-59, SOT-23-3 surface mount packaging. Mechanical footprint, pin pitch, and solder pad dimensions are standardized across all listed parts. Direct PCB footprint compatibility is confirmed for all Tier 1 and Tier 2 substitutes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message