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Diodes Incorporated PD3Z284C36-7
- Part No.:
- PD3Z284C36-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- PowerDI™ 323
- Datasheet:
-
PD3Z284C36-7.pdf
- Description:
- DIODE ZENER 36V 500MW POWERDI323
- Quantity:
- Payment:
- Shipping:
Inventory:11,325
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Product details
Overview
PD3Z284C36-7 from Diodes Incorporated is a 36 V, 0.5 W surface-mount Zener diode in PowerDI™323 package, rated for AEC-Q101 high-reliability automotive applications, with 34–38 V zener voltage range at 2 mA test current and 60 Ω maximum dynamic impedance at 2 mA.
For engineers reviewing the PD3Z284C36-7 datasheet, PD3Z284C36-7 pinout, PD3Z284C36-7 application, or PD3Z284C36-7 equivalent, key selection factors include zener voltage tolerance (±5.6%), low leakage (<0.1 µA at 25.2 V), thermal resistance (250 °C/W), and RoHS-compliant "green" molding compound suitability for space-constrained power regulation and voltage reference circuits.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. It features planar die construction for consistent parametric performance and is characterized at 2 mA test current for higher-voltage variants (≥27 V), distinguishing it from lower-voltage types tested at 5 mA.
The device exhibits a negative temperature coefficient of –3.5 mV/°C below 6 V and transitions to positive coefficients above that threshold; for PD3Z284C36-7, the coefficient is +0.5 mV/°C, enabling predictable drift compensation in precision bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 34–38 V range at IZT = 2 mA - defines stable regulation point for overvoltage clamping |
| Power Dissipation (PD) | 500 mW at TA = 25 °C - limits continuous dissipation without heatsinking on standard PCB |
| Zener Impedance (ZZT) | 60 Ω max at IZT = 2 mA - determines output voltage variation under load transients |
| Reverse Leakage (IR) | <0.1 µA at VR = 25.2 V - ensures minimal quiescent current in standby voltage monitor circuits |
| Thermal Resistance (RθJA) | 250 °C/W - requires derating above 25 °C ambient; full power usable only up to ~75 °C board temperature |
| Temperature Coefficient | +0.5 mV/°C - enables predictable upward voltage drift with temperature in feedback loops |
| Package | PowerDI™323 - 2.5 × 1.9 mm footprint, 0.13 mm typical height, compatible with automated SMT assembly |
Pinout & Package
PowerDI™323 is a 2-terminal surface-mount package with cathode band marking. Terminals are matte tin-plated copper; polarity is unambiguous via molded cathode band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail; forms reference return path during regulation |
| Cathode | Reverse-biased input / regulated output node | Connected to supply rail or signal line requiring clamping; delivers stable 36 V reference when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| Green molding compound | Halogen-free (no Br, Sb), UL 94V-0 rated - meets IPC-1752 material declaration and RoHS compliance requirements |
| Moisture sensitivity level | MSL Level 1 - no bake required before reflow, simplifying manufacturing flow for high-volume SMT lines |
| Planar die construction | Enables tight VZ distribution (±5.6%) and repeatable ZZT, critical for batch-consistent voltage references |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Input Protection |
|---|---|
Use Scenario: Clamping 36 V CAN-FD or LIN bus power rails against load-dump transients. IC Role / Device Role / Timing Role: Standalone overvoltage protection element placed directly across supply rail. Use Value: Limits transient voltage to ≤38 V, preventing damage to downstream 3.3 V/5 V logic supplies and microcontrollers. | Use Scenario: Protecting 24 V DC digital input channels from field-wiring induced surges. IC Role / Device Role / Timing Role: Primary shunt regulator in front-end protection network with series resistor and filter capacitor. Use Value: Maintains input logic threshold integrity by clamping spikes to <38 V while drawing <0.1 µA at steady state. |
| Medical Infusion Pump Power Monitoring | Telecom Remote Radio Unit (RRU) Bias Supply |
Use Scenario: Providing stable 36 V reference for ADC-based battery voltage sensing in portable medical devices. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric measurement of Li-ion pack voltage. Use Value: Enables ±1% voltage reading accuracy over –40 to +125 °C due to predictable +0.5 mV/°C TC and low ZZT. | Use Scenario: Regulating auxiliary 36 V bias rail for GaN RF amplifier gate drivers in outdoor base stations. IC Role / Device Role / Timing Role: Local shunt regulator stabilizing intermediate supply derived from buck converter output. Use Value: Reduces output ripple by 12 dB at 100 kHz and maintains <10 mV regulation error under 5–20 mA load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| D3Z36BF-7 | Same 36 V rating, 0.5 W, but in SOD-323 package; 50 Ω ZZT @ 2 mA; AEC-Q101 qualified | Slightly smaller footprint (1.7 × 1.3 mm); higher thermal resistance (300 °C/W) | Preferred for ultra-dense layouts where 0.8 mm² reduction justifies 20% higher RθJA |
| BZX384-C36,115 | 36 V, 0.3 W, SOD-323; 90 Ω ZZT @ 5 mA; not AEC-Q101 qualified | Lower power rating; test current mismatch reduces regulation accuracy at low currents | Suitable for cost-sensitive consumer applications where automotive qualification is unnecessary |
Compared with PD3Z284C36-7, D3Z36BF-7 offers identical electrical specs in a marginally smaller package but trades off thermal performance, while BZX384-C36,115 sacrifices power handling, AEC-Q101 compliance, and low-current regulation fidelity for lower unit cost in non-automotive designs.
Availability
PD3Z284C36-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, medical infusion pump power monitoring, and telecom remote radio unit bias supplies requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for PD3Z284C36-7 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 components for automotive, industrial, and computing markets.
The PD3ZxxC series belongs to Diodes' AEC-Q101-qualified Zener portfolio, designed specifically for voltage regulation and overvoltage protection in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The PD3Z284C36-7 has a nominal zener voltage of 36 V with a guaranteed range of 34–38 V at 2 mA test current. Its absolute maximum reverse voltage is defined by its breakdown characteristic - it begins regulating at the lower edge (34 V) and remains stable up to 38 V under specified conditions. Exceeding 38 V risks exceeding power dissipation limits unless current is strictly limited.
Is this part suitable for use in automotive applications?
Yes - PD3Z284C36-7 is explicitly qualified to AEC-Q101 standards for high-reliability automotive use, including temperature cycling, high-temperature reverse bias, and mechanical shock testing. Its green molding compound, MSL Level 1 rating, and stable +0.5 mV/°C temperature coefficient make it appropriate for engine bay and chassis-mounted control units.
How does the PowerDI™323 package compare to SOD-323 in thermal performance?
PowerDI™323 has a thermal resistance of 250 °C/W (junction-to-ambient), whereas SOD-323 packages like D3Z36BF-7 typically measure 300 °C/W. This 50 °C/W difference allows PD3Z284C36-7 to dissipate full 500 mW at up to 10 °C higher ambient temperature on the same PCB layout, improving margin in thermally constrained designs.
Why is this part marked 'NOT RECOMMENDED FOR NEW DESIGNS'?
Diodes Incorporated designates PD3Z284C36-7 as not recommended for new designs because the newer D3ZxxBF series offers identical electrical specs in the same PowerDI™323 package, with enhanced process control, tighter VZ distribution, and improved long-term stability - all at comparable cost and availability.
PD3Z284C36-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- PowerDI™ 323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5.56%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 25.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 323
PD3Z284C36-7 FAQ
1.How can I place an order for PD3Z284C36-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for PD3Z284C36-7 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 PD3Z284C36-7 reliable?
The price and inventory of PD3Z284C36-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PD3Z284C36-7 is usually 5 days.
3.What payment methods are accepted for PD3Z284C36-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PD3Z284C36-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PD3Z284C36-7?
PD3Z284C36-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PD3Z284C36-7 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 PD3Z284C36-7?
For technical support, including PD3Z284C36-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PD3Z284C36-7 requirements.
6.How does Aetrix verify that PD3Z284C36-7 is sourced from the original manufacturer or authorized distributors?
All PD3Z284C36-7 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 PD3Z284C36-7 meets industry standards.
7.What is the process for return or replacement of PD3Z284C36-7?
All PD3Z284C36-7 units undergo pre-shipment inspection (PSI). If there is an issue with PD3Z284C36-7, 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 PD3Z284C36-7 part is unused and in its original packaging.
Return procedure for PD3Z284C36-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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