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Diodes Incorporated GDZ12LP3-7
- Part No.:
- GDZ12LP3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
GDZ12LP3-7.pdf
- Description:
- DIODE ZENER 12V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,026
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Product details
Overview
GDZ12LP3-7 from Diodes Incorporated is a 12 V, ±5% tolerance Zener diode in an ultra-small X3-DFN0603-2 (0.6 × 0.3 mm) leadless package, rated for 250 mW power dissipation at +25°C, with reverse leakage current ≤0.1 µA at 8.0 V, and qualified to AEC-Q101 for automotive reliability. It serves as a precision voltage reference or overvoltage clamp in space-constrained battery-powered sensor nodes.
For engineers reviewing the GDZ12LP3-7 datasheet, GDZ12LP3-7 pinout, GDZ12LP3-7 application, or GDZ12LP3-7 equivalent, key selection criteria include its 12.0 V nominal Zener voltage, low 0.1 µA IR at VR = 8.0 V, 500 °C/W thermal resistance, AEC-Q101 qualification, and compatibility with high-speed automated placement on 0.3 mm profile PCBs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across load and line variations. Its low leakage (≤0.1 µA @ 8.0 V) and tight 11.4–12.6 V Zener range at 5 mA test current enable accurate clamping in low-power analog monitoring circuits.
The X3-DFN0603-2 package features a cathode bar marking and matte tin-plated copper leadframe, supporting solderability per MIL-STD-202 Method 208 and moisture sensitivity level 1. Thermal derating begins above +25°C, reaching zero power at +150°C per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.0 V nominal, 11.4–12.6 V range at IZT = 5 mA - ensures stable reference within ±5% under standard test conditions. |
| Power Dissipation (PD) | 250 mW at TA = +25°C - defines maximum continuous power before thermal shutdown in minimal pad layouts. |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 8.0 V - enables use in microamp-level battery circuits without significant drain. |
| Thermal Resistance (RθJA) | 500 °C/W - indicates junction-to-ambient heat transfer efficiency on FR-4 with recommended pads. |
| Operating Temperature | −55°C to +150°C - supports deployment in under-hood automotive and industrial environments. |
| Package | X3-DFN0603-2 (0.6 × 0.3 × 0.3 mm) - ultra-compact, leadless, AEC-Q101-qualified surface-mount footprint. |
Pinout & Package
Package: X3-DFN0603-2 - ultra-low-profile (0.3 mm height), 2-terminal leadless plastic package with cathode bar marking on top surface. Molded with halogen/antimony-free green compound (UL 94V-0).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to higher potential side during regulation; marked by cathode bar on top view. |
| 2 (Anode) | Zener anode terminal | Connected to lower potential/reference ground; unmarked side of die in top view. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
| Ultra-small footprint | 0.6 × 0.3 mm body size enables routing in dense wearable and IoT PCBs where board area is constrained. |
| Low-profile construction | 0.3 mm max height avoids interference with adjacent components and shields in stacked modules. |
| Lead-free & green compliance | Fully RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb) with matte tin over copper leadframe. |
Applications
| Automotive Cabin Sensors | Industrial Wireless Transmitters |
|---|---|
|
Use Scenario: Voltage reference for MEMS pressure sensor signal conditioning in HVAC control modules. IC Role / Device Role / Timing Role: Zener clamping element providing stable 12 V rail supervision and ADC reference stabilization. Use Value: Tight 11.4–12.6 V tolerance and −55°C to +150°C operation ensure accuracy across vehicle cabin temperature extremes. |
Use Scenario: Overvoltage protection for 3.3 V LDO input in battery-powered LoRaWAN node. IC Role / Device Role / Timing Role: Reverse-biased shunt regulator absorbing transient surges on supply rail. Use Value: 0.1 µA leakage at 8.0 V prevents measurable battery drain during multi-year sleep cycles. |
| Medical Wearable Monitors | Smart Metering Modules |
|
Use Scenario: Precision biasing of op-amp input stage in ECG front-end analog acquisition. IC Role / Device Role / Timing Role: Low-noise voltage reference stabilizing common-mode voltage in instrumentation amplifiers. Use Value: Ultra-low leakage and AEC-Q101 qualification support long-term stability in Class II medical devices. |
Use Scenario: Voltage clamp for microcontroller reset circuit triggered by brown-out detection. IC Role / Device Role / Timing Role: Zener-based threshold detector enabling reliable reset assertion at defined supply levels. Use Value: 500 °C/W RθJA allows predictable thermal behavior in sealed meter enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B12,115 | 12 V, ±5%, SOD-323 package (1.7 × 1.3 mm), 300 mW PD, 100 nA IR @ 8 V | Larger footprint; higher power rating but less suitable for ultra-dense layouts | Preferred when higher surge energy handling is required and board space permits. |
| MMSZ4687T1G | 12 V, ±5%, SOD-123 package (3.5 × 1.8 mm), 500 mW PD, 100 nA IR @ 8 V | Significantly larger; not AEC-Q101 qualified; higher thermal mass | Selected for cost-sensitive industrial designs where automotive qualification is unnecessary. |
Compared with BZX384-B12 and MMSZ4687T1G, GDZ12LP3-7 offers the smallest footprint and automotive qualification, making it optimal for next-generation compact, safety-aware electronics-whereas alternatives trade size for power or qualification scope.
Availability
GDZ12LP3-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial wireless transmitters, and medical wearable monitors requiring stable component supply with full traceability and lifecycle management.
Supply support for GDZ12LP3-7 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, specializing in high-reliability, energy-efficient components for automotive, industrial, and consumer markets.
GDZ12LP3-7 belongs to the GDZ-LP3 series of ultra-miniature Zener diodes designed specifically for space-constrained, battery-operated systems demanding AEC-Q101 reliability and low leakage performance.
FAQ
What is the maximum reverse voltage (VR) that GDZ12LP3-7 can withstand before breakdown?
The GDZ12LP3-7 exhibits controlled Zener breakdown at its nominal 12.0 V rating, with guaranteed operation between 11.4 V and 12.6 V at 5 mA test current. Below 8.0 V, reverse leakage remains ≤0.1 µA - no hard "maximum non-breakdown" voltage is specified, as it functions as a shunt regulator above its knee voltage.
Is GDZ12LP3-7 suitable for use in reflow soldering processes?
Yes - GDZ12LP3-7 is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1 and matte tin-plated terminals compatible with standard Pb-free SAC305 profiles. Its X3-DFN0603-2 package requires precise stencil design due to its 0.3 mm height and 0.24 mm lead width.
How does the thermal derating curve affect GDZ12LP3-7's usable power at 85°C ambient?
Per Figure 1, GDZ12LP3-7's power dissipation linearly derates from 250 mW at 25°C to approximately 150 mW at 85°C ambient - calculated as 250 mW × (1 − (85 − 25)/125) = 150 mW. This must be respected in enclosed or high-temperature deployments.
Does GDZ12LP3-7 have polarity marking, and how is it identified on the device?
Yes - GDZ12LP3-7 uses a cathode bar marking on the top surface of the X3-DFN0603-2 package, aligned with Pin 1 (cathode). The unmarked side corresponds to Pin 2 (anode). This matches the top-view diagram in DS35065 Rev. 19–2, page 1.
GDZ12LP3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0201 (0603 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X3-DFN0603-2
GDZ12LP3-7 FAQ
1.How can I place an order for GDZ12LP3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for GDZ12LP3-7 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 GDZ12LP3-7 reliable?
The price and inventory of GDZ12LP3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GDZ12LP3-7 is usually 5 days.
3.What payment methods are accepted for GDZ12LP3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GDZ12LP3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GDZ12LP3-7?
GDZ12LP3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GDZ12LP3-7 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 GDZ12LP3-7?
For technical support, including GDZ12LP3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GDZ12LP3-7 requirements.
6.How does Aetrix verify that GDZ12LP3-7 is sourced from the original manufacturer or authorized distributors?
All GDZ12LP3-7 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 GDZ12LP3-7 meets industry standards.
7.What is the process for return or replacement of GDZ12LP3-7?
All GDZ12LP3-7 units undergo pre-shipment inspection (PSI). If there is an issue with GDZ12LP3-7, 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 GDZ12LP3-7 part is unused and in its original packaging.
Return procedure for GDZ12LP3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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