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DFLZ5V6-TP Zener Diode Equivalent & Substitute Parts
Part Overview
The DFLZ5V6-TP is a 5.6 V, 1 W Zener diode manufactured by Micro Commercial Co in SOD-123FL surface mount packaging. This component is designed for voltage regulation and protection applications requiring precise Zener voltage characteristics at elevated power dissipation levels. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified based on matching nominal Zener voltage, compatible package form factors, and surface mount technology to maintain circuit board integration requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 5.6 | V |
| Power - Max | 1 | W |
| Tolerance | ±5% | — |
| Impedance (Max) | 5 | Ohms |
| Package / Case | SOD-123F | — |
| Mounting Type | Surface Mount | — |
| Operating Temperature Range | -55 to 150 | °C |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility for the DFLZ5V6-TP is determined by the following critical parameters:
Primary Matching Criteria:
- Nominal Zener voltage of 5.6 V
- Surface mount package compatibility (SOD-123F or SOD-123FL)
- Active product status
- RoHS3 compliance
Secondary Compatibility Factors:
- Operating temperature range overlap
- Voltage tolerance within acceptable circuit design margins
- Forward voltage and reverse leakage characteristics suitable for the application context
- Impedance specifications for dynamic response requirements
The substitute part BZT52HC5V6WF-7 meets all primary matching criteria and maintains compatibility with the electrical and mechanical requirements of the DFLZ5V6-TP application space.
Parameter Comparison
| Parameter | DFLZ5V6-TP | BZT52HC5V6WF-7 | Unit |
|---|---|---|---|
| Manufacturer | Micro Commercial Co | Diodes Incorporated | — |
| Voltage - Zener (Nom) | 5.6 | 5.6 | V |
| Tolerance | ±5% | ±7.14% | — |
| Power - Max | 1 | 0.375 | W |
| Impedance (Max) | 5 | 40 | Ohms |
| Current - Reverse Leakage @ Vr | 10 µA @ 2 V | 1 µA @ 2 V | — |
| Voltage - Forward (Vf) (Max) @ If | 1.2 V @ 200 mA | 900 mV @ 10 mA | — |
| Operating Temperature Range | -55 to 150 | -65 to 150 | °C |
| Package / Case | SOD-123F | SOD-123F | — |
| Mounting Type | Surface Mount | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | — |
| Product Status | Active | Active | — |
| Qualification | — | AEC-Q101 | — |
Engineering Selection Recommendations
DFLZ5V6-TP Selection: The DFLZ5V6-TP is the primary component choice for applications requiring 1 W maximum power dissipation at 5.6 V nominal Zener voltage. This part is Active, RoHS3 compliant, and maintains a ±5% voltage tolerance. The 5 Ohm maximum impedance provides superior dynamic response characteristics. Operating temperature range of -55°C to 150°C supports standard industrial and commercial applications.
BZT52HC5V6WF-7 Substitution: The BZT52HC5V6WF-7 is a qualified substitute for applications where power dissipation requirements do not exceed 375 mW. This part carries AEC-Q101 automotive qualification, indicating suitability for automotive-grade reliability standards. The extended operating temperature range (-65°C to 150°C) provides additional low-temperature margin. The ±7.14% voltage tolerance is wider than the primary part and must be evaluated against circuit design specifications. The 40 Ohm impedance represents a trade-off in dynamic response compared to the DFLZ5V6-TP.
Both parts maintain Active product status, RoHS3 compliance, and identical SOD-123F package compatibility for direct board-level substitution.
Frequently Asked Questions (FAQ)
Q: Can BZT52HC5V6WF-7 replace DFLZ5V6-TP in all applications?
A: The BZT52HC5V6WF-7 is suitable for substitution only in applications where maximum power dissipation does not exceed 375 mW. The DFLZ5V6-TP supports 1 W dissipation. If the circuit design requires the full 1 W capability, the BZT52HC5V6WF-7 is not appropriate.
Q: What is the impact of the different voltage tolerances?
A: The DFLZ5V6-TP specifies ±5% tolerance while the BZT52HC5V6WF-7 specifies ±7.14% tolerance. Both parts maintain 5.6 V nominal Zener voltage. Circuit designs must accommodate the wider tolerance band of the substitute part if voltage regulation precision is critical.
Q: Are the packages physically identical?
A: Both parts use SOD-123F surface mount packaging. The DFLZ5V6-TP is supplied in SOD-123FL variant, which is mechanically compatible with SOD-123F footprints. Direct board-level substitution is supported without layout modifications.
Q: What is the significance of AEC-Q101 qualification on the substitute part?
A: AEC-Q101 qualification indicates the BZT52HC5V6WF-7 meets automotive industry reliability and testing standards. This qualification is relevant only if the application requires automotive-grade components. Standard industrial applications do not require this qualification.
Q: How do impedance differences affect circuit performance?
A: The DFLZ5V6-TP specifies 5 Ohm maximum impedance while the BZT52HC5V6WF-7 specifies 40 Ohm maximum impedance. Lower impedance provides faster transient response and better voltage regulation under dynamic load conditions. Applications with stringent transient response requirements should retain the DFLZ5V6-TP.
Q: Are both parts RoHS3 compliant?
A: Yes. Both the DFLZ5V6-TP and BZT52HC5V6WF-7 are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1), supporting standard manufacturing and storage conditions.
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