Request Quote
(Ships tomorrow)
PMLL4448,135 Equivalent & Substitute Parts
Part Overview
The PMLL4448,135 is a general-purpose rectifier diode manufactured by Nexperia USA Inc., rated for 75 V DC reverse voltage and 200 mA average rectified current in a surface mount LLDS (MiniMelf) package. This diode is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or packaging format preferences.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 75 | V |
| Current - Average Rectified (Io) | 200 | mA |
| Voltage - Forward (Vf) (Max) @ If | 1 V @ 100 mA | V |
| Reverse Recovery Time (trr) | 4 | ns |
| Current - Reverse Leakage @ Vr | 25 nA @ 20 V | nA |
| Capacitance @ Vr, F | 4 pF @ 0V, 1MHz | pF |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-213AC, MINI-MELF, SOD-80 | — |
| Operating Temperature - Junction (Max) | 200 | °C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitute parts for the PMLL4448,135 are classified into two categories based on electrical and mechanical compatibility:
Parametric Equivalents share identical or functionally equivalent electrical specifications across all critical parameters: 75 V reverse voltage rating, 200 mA average rectified current, 4 ns reverse recovery time, surface mount LLDS/MiniMelf package configuration, and ROHS3 compliance. These parts are direct functional replacements with no circuit redesign required.
Similar Parts maintain the same voltage and current ratings, package type, and mounting configuration but may differ in reverse leakage current, capacitance, forward voltage measurement conditions, or operating temperature range. These parts are suitable for applications where the specified parameter variations do not impact circuit performance.
The critical parameters determining substitution eligibility are:
- Voltage - DC Reverse (Vr) (Max): 75 V
- Current - Average Rectified (Io): 200 mA
- Package / Case: DO-213AC, MINI-MELF, SOD-80
- Mounting Type: Surface Mount
- Reverse Recovery Time (trr): 4 ns
Parameter Comparison
| Part Number | Manufacturer | Vr (Max) [V] | Io [mA] | Vf (Max) @ If | trr [ns] | Ir @ Vr | C @ Vr [pF] | Tj (Max) [°C] | Packaging | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| PMLL4448,135 | Nexperia USA Inc. | 75 | 200 | 1 V @ 100 mA | 4 | 25 nA @ 20 V | 4 pF @ 0V, 1MHz | 200 | Tape & Reel (TR) | Active |
| BAS32L,115 | NXP Semiconductors | 75 | 200 | 1 V @ 100 mA | 4 | 5 µA @ 75 V | 2 pF @ 0V, 1MHz | 200 | — | Active |
| BAS32L,135 | NXP Semiconductors | 75 | 200 | 1 V @ 100 mA | 4 | 5 µA @ 75 V | 2 pF @ 0V, 1MHz | 200 | Bulk | Active |
| PMLL4148L,115 | Nexperia USA Inc. | 75 | 200 | 1 V @ 50 mA | 4 | 25 nA @ 20 V | 4 pF @ 0V, 1MHz | 200 | Cut Tape (CT) & Digi-Reel® | Active |
| PMLL4148L,135 | Nexperia USA Inc. | 75 | 200 | 1 V @ 50 mA | 4 | 25 nA @ 20 V | 4 pF @ 0V, 1MHz | 200 | Tape & Reel (TR) | Active |
| PMLL4448,115 | Nexperia USA Inc. | 75 | 200 | 1 V @ 100 mA | 4 | 25 nA @ 20 V | 4 pF @ 0V, 1MHz | 200 | Tape & Reel (TR) | Active |
| CDSL4148-G | Comchip Technology | 75 | 150 | 1 V @ 100 mA | 4 | 2.5 µA @ 75 V | 4 pF @ 0V, 1MHz | 175 | Cut Tape (CT) | Obsolete |
| FDLL4448 | onsemi | 100 | 200 | 1 V @ 100 mA | 4 | 5 µA @ 75 V | 2 pF @ 0V, 1MHz | 175 | Cut Tape (CT) & Digi-Reel® | Active |
| FDLL4448-D87Z | onsemi | 100 | 200 | 1 V @ 100 mA | 4 | 5 µA @ 75 V | 2 pF @ 0V, 1MHz | 175 | Tape & Reel (TR) | Active |
| FDLL914 | Fairchild Semiconductor | 100 | 200 | 1 V @ 10 mA | 4 | 5 µA @ 75 V | 4 pF @ 0V, 1MHz | 175 | — | Active |
| FDLL914A | onsemi | 100 | 200 | 1 V @ 20 mA | 4 | 5 µA @ 75 V | 4 pF @ 0V, 1MHz | 175 | Cut Tape (CT) & Digi-Reel® | Active |
Engineering Selection Recommendations
Parametric Equivalent Selection (Direct Replacement)
BAS32L,115 and BAS32L,135 are parametric equivalents manufactured by NXP Semiconductors. Both parts maintain the 75 V reverse voltage and 200 mA current ratings with identical forward voltage characteristics at 100 mA. These parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications. BAS32L,135 in Bulk packaging offers the highest inventory availability (636,212 units). Selection between these NXP alternatives depends on packaging format requirements: BAS32L,115 for standard tape format or BAS32L,135 for bulk quantities.
PMLL4148L,115 and PMLL4148L,135 are parametric equivalents from Nexperia USA Inc. with identical voltage and current ratings. These parts differ in forward voltage measurement condition (1 V @ 50 mA versus 1 V @ 100 mA on the main part) but maintain equivalent electrical performance. Both are ROHS3 compliant with 200°C maximum junction temperature. PMLL4148L,135 in Tape & Reel format provides 92,739 units in stock. PMLL4148L,115 in Cut Tape & Digi-Reel® format provides 4,530 units.
PMLL4448,115 is a direct parametric equivalent from Nexperia USA Inc., differing only in packaging format (Tape & Reel versus the original Tape & Reel designation). This part maintains all electrical specifications and compliance certifications with 51,808 units available.
Similar Part Selection (Functional Compatibility)
FDLL4448 and FDLL4448-D87Z from onsemi are rated for 100 V reverse voltage, providing 25 V higher voltage margin than the 75 V specification. Both maintain 200 mA current rating and 4 ns reverse recovery time. These parts are suitable for applications where higher voltage headroom is beneficial. FDLL4448-D87Z in Tape & Reel format provides 79,848 units; FDLL4448 in Cut Tape & Digi-Reel® format provides 27,800 units. Operating temperature range is -55°C to 175°C.
FDLL914A from onsemi and FDLL914 from Fairchild Semiconductor are rated for 100 V reverse voltage with 200 mA current capacity. FDLL914A is ROHS3 compliant with -55°C to 175°C operating range and 15,437 units in stock. FDLL914 provides 19,700 units with 175°C maximum junction temperature.
CDSL4148-G from Comchip Technology carries Obsolete product status and is not recommended for new designs. This part is rated for 150 mA average rectified current, below the 200 mA requirement, and has 175°C maximum junction temperature versus 200°C on the main part.
Frequently Asked Questions (FAQ)
Q: Can BAS32L,135 replace PMLL4448,135 in all applications?
A: BAS32L,135 is a parametric equivalent with identical 75 V and 200 mA ratings, matching forward voltage at 100 mA, and equivalent reverse recovery time. Both are ROHS3 compliant with MSL 1 rating. The primary difference is manufacturer (NXP Semiconductors versus Nexperia USA Inc.). Substitution is valid for all applications where the original part was specified, provided no design-specific manufacturer requirements exist.
Q: What is the difference between PMLL4148L and PMLL4448 variants?
A: Both PMLL4148L and PMLL4448 maintain identical 75 V reverse voltage and 200 mA current ratings with 4 ns reverse recovery time. The difference lies in forward voltage measurement condition: PMLL4148L is specified at 1 V @ 50 mA, while PMLL4448 is specified at 1 V @ 100 mA. This represents a measurement methodology difference rather than a functional performance difference. Both are suitable substitutes for the PMLL4448,135.
Q: Why are FDLL4448 and FDLL914A listed as similar rather than equivalent?
A: FDLL4448 and FDLL914A are rated for 100 V reverse voltage, exceeding the 75 V specification of PMLL4448,135. While this higher voltage rating provides additional safety margin, it represents a specification change. These parts are functionally compatible for applications where 100 V reverse voltage is acceptable, but they are not direct parametric equivalents. Additionally, operating temperature range differs (-55°C to 175°C versus 200°C maximum junction temperature).
Q: What packaging formats are available for substitutes?
A: Parametric equivalents are available in multiple packaging formats: Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Bulk. PMLL4448,135 is supplied in Tape & Reel format. BAS32L,135 is available in Bulk format with highest inventory (636,212 units). PMLL4148L,135 is available in Tape & Reel format (92,739 units). Selection depends on assembly process requirements and quantity needs.
Q: Is CDSL4148-G suitable as a substitute?
A: CDSL4148-G is classified as Obsolete product status and carries a 150 mA average rectified current rating, below the 200 mA requirement of PMLL4448,135. Additionally, maximum junction temperature is 175°C versus 200°C on the original part. This part is not recommended for new designs or as a substitute for active production applications.
Q: Can I use FDLL914A in place of PMLL4448,135?
A: FDLL914A maintains 200 mA current capacity and 4 ns reverse recovery time with identical package configuration. However, it is rated for 100 V reverse voltage versus 75 V, and operating temperature range is -55°C to 175°C versus 200°C maximum junction temperature. FDLL914A is functionally compatible for applications where higher voltage rating and lower temperature maximum are acceptable. This represents a specification upgrade rather than a direct equivalent substitution.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts