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Diodes Incorporated D3Z2V7BF-7
- Part No.:
- D3Z2V7BF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
D3Z2V7BF-7.pdf
- Description:
- DIODE ZENER 2.8V 400MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:662
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Product details
Overview
D3Z2V7BF-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 2.7 V (2.69–2.91 V), ±5% tolerance, 400 mW power dissipation on FR-4 PCB, and 100 Ω dynamic impedance at 5 mA test current. It serves as a stable voltage reference or overvoltage clamp in low-power analog signal conditioning and power rail monitoring circuits.
For engineers reviewing the D3Z2V7BF-7 datasheet, D3Z2V7BF-7 pinout, D3Z2V7BF-7 application, or D3Z2V7BF-7 equivalent, key selection criteria include its tight VZ tolerance, low temperature coefficient (−1.7 mV/°C), SOD323F package compatibility with automated assembly, and verified performance under 5 mA zener test current.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode–anode terminals. Its design targets precision biasing and regulation in space-constrained, low-current applications where thermal stability and repeatability are critical.
The device exhibits a typical temperature coefficient of −1.7 mV/°C and total capacitance of 205 pF at 0 V, enabling predictable behavior in DC-biased reference networks and low-frequency protection circuits without significant parasitic coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.69–2.91 V at IZT = 5 mA - defines usable reference range for 2.7 V nominal systems |
| Power Dissipation | 400 mW on FR-4 PCB - sets maximum continuous power handling with standard layout |
| Zener Impedance | 100 Ω at 1 kHz, IZT = 5 mA - determines output voltage variation under load current changes |
| Reverse Current | 20 μA at VR = 1 V - specifies leakage level below breakdown, critical for low-power standby circuits |
| Temperature Coefficient | −1.7 mV/°C - quantifies VZ drift with ambient temperature, enabling compensation design |
| Total Capacitance | 205 pF at 0 V, 1 MHz - impacts high-frequency noise rejection and AC coupling in reference paths |
| Forward Voltage | 0.9 V at IF = 10 mA - defines conduction threshold when used in forward-biased protection roles |
Pinout & Package
Package: SOD323F - ultra-small plastic surface-mount package (1.25 mm × 1.70 mm × 0.95 mm), halogen- and antimony-free, moisture sensitivity level 1, matte tin-plated copper alloy leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to lower potential in Zener operation | Must be held at ≤ (cathode voltage − 0.9 V) to avoid forward conduction during regulation |
| Cathode | Negative terminal in forward bias; higher-potential terminal in Zener breakdown | Marked by band; connects to regulated node or voltage reference point in shunt configuration |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±5% (2.69–2.91 V) - enables accurate 2.7 V reference without external trimming |
| Low temperature coefficient | −1.7 mV/°C - minimizes drift over −65°C to +150°C operating range |
| Automated assembly compatibility | SOD323F footprint with J-STD-020 Level 1 moisture rating - supports high-yield reflow without baking |
| Green material compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), RoHS 3 compliant - meets automotive and industrial environmental mandates |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Reference |
|---|---|
Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA loop transmitters. IC Role / Device Role: Shunt voltage reference providing fixed 2.7 V node for amplifier common-mode setting. Use Value: Tight VZ tolerance and low TC ensure sensor output accuracy remains within ±0.1% over temperature. |
Use Scenario: Setting precise undervoltage lockout threshold in USB-C port controller power sequencing. IC Role / Device Role: Zener clamp defining 2.7 V trigger point for VBUS monitoring circuitry. Use Value: Low 20 μA leakage at 1 V ensures minimal current draw during standby, extending system sleep time. |
| Low-Power IoT Node Voltage Monitoring | Medical Wearable Battery Protection |
Use Scenario: Detecting brownout conditions in coin-cell–powered BLE modules. IC Role / Device Role: Reverse-biased reference feeding comparator input to flag supply drop below 2.7 V. Use Value: 205 pF capacitance avoids high-frequency coupling into sensitive analog comparators. |
Use Scenario: Providing overvoltage clamp for lithium polymer battery charging IC feedback path. IC Role / Device Role: Precision shunt element limiting reference voltage to 2.7 V during fast-charge transitions. Use Value: 400 mW dissipation rating safely absorbs transient energy without thermal runaway in compact wearable PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V7 | Same 2.7 V nominal, but ±5% tolerance achieved via tighter binning; 300 mW rating on FR-4; 150 Ω ZZT | Higher ZZT increases output impedance error under varying load; lower power rating limits surge handling | Select if legacy BOM alignment or JEDEC-standard SOD323 footprint is required |
| MMSZ4678T1G | 2.7 V nominal, ±5%, 500 mW rating, but 200 Ω ZZT and −2.0 mV/°C TC | Higher TC degrades reference stability above 40°C; larger 500 mW rating suits higher pulse loads | Prefer when transient energy absorption is prioritized over long-term thermal drift |
Compared with BZX384-B2V7 and MMSZ4678T1G, D3Z2V7BF-7 delivers superior thermal stability (−1.7 mV/°C) and lower dynamic impedance (100 Ω), making it optimal for precision DC references where ambient temperature varies widely and load current remains near 5 mA.
Availability
D3Z2V7BF-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference, and low-power IoT node voltage monitoring requiring stable component supply, full RoHS 3 compliance, and SOD323F footprint consistency.
Supply support for D3Z2V7BF-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
D3Z2V7BF-7 belongs to Diodes' precision Zener diode family optimized for high-accuracy voltage referencing in space-constrained, thermally demanding environments - especially where automotive-grade reliability and green material compliance are mandatory.
FAQ
What is the maximum continuous power dissipation for D3Z2V7BF-7 on a standard PCB?
D3Z2V7BF-7 is rated for 400 mW continuous power dissipation when mounted on an FR-4 PCB with the recommended 35 mm × 25 mm pad layout. Derating begins above +25°C ambient, reaching zero dissipation at +150°C per the published power derating curve.
Does D3Z2V7BF-7 meet AEC-Q200 requirements for passive components?
No - D3Z2V7BF-7 is not AEC-Q200 qualified. While manufactured in IATF 16949 certified facilities and fully RoHS 3 compliant, it lacks formal stress testing per AEC-Q200. For automotive applications, Diodes recommends contacting their automotive team for PPAP-capable alternatives.
How does the −1.7 mV/°C temperature coefficient affect circuit accuracy over temperature?
At ±40°C deviation from 25°C, the zener voltage shifts by ±68 mV (−1.7 mV/°C × 40°C), resulting in ±2.5% change relative to 2.7 V nominal. This must be factored into reference-critical designs; compensation techniques or tighter ambient control may be needed for sub-1% total error.
Can D3Z2V7BF-7 be used in forward-bias applications?
Yes - its forward voltage is specified at 0.9 V @ 10 mA, making it suitable for low-voltage clamping or polarity protection. However, its primary design intent and characterization are for reverse-bias Zener operation; forward characteristics are secondary and not guaranteed beyond the stated condition.
D3Z2V7BF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.8 V
- Tolerance:
- ±4%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
D3Z2V7BF-7 FAQ
1.How can I place an order for D3Z2V7BF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3Z2V7BF-7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for D3Z2V7BF-7 reliable?
The price and inventory of D3Z2V7BF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3Z2V7BF-7 is usually 5 days.
3.What payment methods are accepted for D3Z2V7BF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3Z2V7BF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3Z2V7BF-7?
D3Z2V7BF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3Z2V7BF-7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for D3Z2V7BF-7?
For technical support, including D3Z2V7BF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3Z2V7BF-7 requirements.
6.How does Aetrix verify that D3Z2V7BF-7 is sourced from the original manufacturer or authorized distributors?
All D3Z2V7BF-7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that D3Z2V7BF-7 meets industry standards.
7.What is the process for return or replacement of D3Z2V7BF-7?
All D3Z2V7BF-7 units undergo pre-shipment inspection (PSI). If there is an issue with D3Z2V7BF-7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The D3Z2V7BF-7 part is unused and in its original packaging.
Return procedure for D3Z2V7BF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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