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Vishay General Semiconductor - Diodes Division PLZ4V7C-G3/H
- Part No.:
- PLZ4V7C-G3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-219AC
- Datasheet:
-
PLZ4V7C-G3/H.pdf
- Description:
- DIODE ZENER 4.81V 960MW DO219AC
- Quantity:
- Payment:
- Shipping:
Inventory:32,489
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Product details
Overview
PLZ4V7C-G3/H from Vishay Semiconductors is a silicon planar Zener diode in the ultra-small MicroSMF (DO-219AC) package, rated for 500 mW power dissipation at 85 °C ambient, with nominal zener voltage 4.68–4.93 V at 20 mA test current, low dynamic resistance (≤9.4 Ω), and reverse clamping voltage of 7.40 V at peak pulse current. It serves as a precision voltage reference and transient voltage suppressor in low-power analog sensing and automotive body electronics.
For engineers reviewing the PLZ4V7C-G3/H datasheet, PLZ4V7C-G3/H pinout, PLZ4V7C-G3/H application, or PLZ4V7C-G3/H equivalent, this page delivers verified electrical specs, thermal performance data, AEC-Q101 qualification status, ESD immunity (≥30 kV), and real-world design implications for compact, high-reliability DC biasing and overvoltage protection circuits.
Technical Context
The PLZ4V7C-G3/H operates as a single-element, unidirectional Zener diode optimized for stable voltage regulation under low-current conditions (IZT = 20 mA). Its silicon planar construction ensures tight VZ tolerance (±2.5% across 4.68–4.93 V range) and low leakage (IR ≤ 5 μA at VR = 1 V), enabling accurate reference generation in battery-powered systems.
Thermally, it features RthJA = 130 K/W on FR4 (50 mm × 50 mm × 1.6 mm, 10 mm × 10 mm pad), supporting operation up to TJ = 150 °C. Surge capability is defined per IEC 61000-4-5 (8/20 μs): PZSM = 70 W, IPPM = 9.4 A, VC = 7.40 V - confirming suitability for board-level ESD and lightning-induced transients in industrial control interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.68–4.93 V at IZT = 20 mA - enables precise 4.8 V ±2.5% biasing for op-amp references and ADC voltage dividers |
| Power Dissipation (Ptot) | 500 mW at Tamb = 85 °C - supports continuous operation in thermally constrained PCB layouts without forced cooling |
| Dynamic Resistance (ZZ) | ≤9.4 Ω at IZT = 20 mA - ensures minimal output voltage variation under load current shifts in feedback networks |
| Reverse Clamping Voltage (VC) | 7.40 V at IPPM = 9.4 A (8/20 μs) - limits transient overvoltage to safe levels for downstream 5 V logic and microcontrollers |
| ESD Immunity | ≥30 kV per IEC 61000-4-2 (contact/air) - eliminates need for external ESD protection in USB, CAN, and sensor interface lines |
| Package | MicroSMF (DO-219AC), 2.5 mm × 1.3 mm × 0.6 mm - fits 0402-class footprints while delivering higher surge robustness than standard SOD-123 |
| Thermal Resistance | RthJA = 130 K/W - allows direct thermal modeling for junction temperature rise in ambient-limited environments |
Pinout & Package
MicroSMF (DO-219AC) surface-mount package: cathode-bar marked end, 2-terminal configuration, 0.6 mm profile, UL 94 V-0 molding compound, MSL level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or lower-potential node in shunt regulator topology; defines polarity for reverse-biased Zener operation |
| Cathode | Current exit point during Zener breakdown | Connected to regulated voltage rail; marking bar identifies this terminal for correct PCB orientation and functional reliability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile MicroSMF package | 0.6 mm height enables use in space-constrained modules (e.g., automotive door modules, wearables) without compromising thermal or surge performance |
| AEC-Q101 qualified variant available | PLZ4V7C-HG3_A/H meets automotive-grade reliability requirements for under-hood and infotainment subsystems |
| High-temperature soldering compatibility | Rated for 260 °C / 10 s at terminals - compatible with standard lead-free reflow profiles without parametric shift or delamination |
| Low leakage current | IR ≤ 5 μA at VR = 1 V - minimizes quiescent current drain in always-on battery circuits (e.g., smart sensors, IoT endpoints) |
| Stable zener voltage over temperature | TCVZ ≈ 0.05 %/°C (inferred from family data) - maintains reference accuracy across -40 to +125 °C operating range |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 4.8 V supply for LIN transceiver bias and microcontroller I/O protection in door latch assemblies. IC Role / Device Role / Timing Role: Shunt voltage reference and transient suppressor for 12 V vehicle bus interfacing. Use Value: Prevents overvoltage damage during load-dump events while maintaining stable reference for analog-to-digital conversion of window position sensors. |
Use Scenario: Providing precision 4.8 V reference for bridge-based pressure sensor excitation in HVAC controllers. IC Role / Device Role / Timing Role: Low-drift voltage reference and ESD clamp on sensor analog front-end inputs. Use Value: Reduces measurement error to <0.5% full-scale by stabilizing excitation voltage and absorbing contact discharge transients ≥30 kV. |
| USB-C Port Protection | Smart Meter Power Supply Monitoring |
Use Scenario: Clamping VBUS line against ESD and hot-plug surges in portable diagnostic tools. IC Role / Device Role / Timing Role: Fast-response transient voltage suppressor placed before USB PD controller IC. Use Value: Limits VBUS overshoot to 7.4 V during 8/20 μs surges, preventing latch-up in 5 V tolerant USB PHYs without adding series impedance. |
Use Scenario: Monitoring 5 V auxiliary rail integrity in utility meters using resistive divider into MCU ADC. IC Role / Device Role / Timing Role: Precision voltage reference and fault detector for brown-out warning circuitry. Use Value: Enables detection of >5% supply sag via comparator threshold set by stable 4.8 V Zener, improving meter uptime reporting accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V7,115 (Nexperia) | Same VZ range (4.66–4.88 V), but SOD-323 package (1.7 mm × 1.3 mm × 0.9 mm); RthJA ≈ 370 K/W; no AEC-Q101 option | Larger thermal resistance limits power handling in sustained overvoltage events; unsuitable for automotive under-hood use | Select when board space permits larger footprint and AEC-Q101 is not required; verify thermal derating at 85 °C ambient |
| MMBZ5225BS-7-F (Diodes Inc.) | SOD-323 package; VZ = 4.55–4.75 V; Ptot = 300 mW at 25 °C; no IEC 61000-4-5 surge rating published | Lower surge robustness (no specified PZSM or IPPM); lacks documented ESD immunity beyond JEDEC standards | Choose only for cost-sensitive consumer applications where transient suppression is secondary to basic voltage regulation |
Compared with BZX384-B4V7,115 and MMBZ5225BS-7-F, the PLZ4V7C-G3/H delivers superior thermal management (RthJA = 130 K/W), certified 70 W surge capability, and optional AEC-Q101 qualification - making it the preferred choice for automotive and industrial designs demanding long-term stability under thermal and electrical stress.
Availability
PLZ4V7C-G3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor signal conditioning, USB-C port protection, and smart meter power monitoring requiring stable component supply, consistent parametric performance, and traceable green manufacturing compliance.
Supply support for PLZ4V7C-G3/H 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The PLZ Series belongs to Vishay's eSMP® family of ultra-small surface-mount Zener diodes, engineered specifically for space-constrained, high-surge environments where traditional SOD-123 or SOD-323 packages fail to meet thermal or transient robustness requirements.
FAQ
What is the maximum junction temperature for PLZ4V7C-G3/H?
The absolute maximum junction temperature for PLZ4V7C-G3/H is 150 °C, as specified in the Vishay PLZ Series datasheet (Document Number: 84830, Rev. 1.7). This limit applies under all operating conditions and must be respected in thermal design to ensure long-term reliability and parametric stability of the PLZ4V7C-G3/H.
Is PLZ4V7C-G3/H RoHS-compliant and halogen-free?
Yes, PLZ4V7C-G3/H is RoHS-compliant and green, with halogen-free molding compound meeting IEC 61249-2-21 requirements. The "G3" suffix explicitly denotes Vishay's industrial-grade RoHS/green qualification, and the device carries UL 94 V-0 flammability rating per its MicroSMF package specification.
Does PLZ4V7C-G3/H have AEC-Q101 qualification?
The base PLZ4V7C-G3/H is not AEC-Q101 qualified; however, the functionally identical PLZ4V7C-HG3_A/H variant is fully AEC-Q101 qualified for automotive applications. Both share identical electrical characteristics and MicroSMF packaging, differing only in qualification documentation and traceability.
What is the reverse leakage current of PLZ4V7C-G3/H at 1 V reverse voltage?
The reverse leakage current (IR) for PLZ4V7C-G3/H is guaranteed ≤5 μA at VR = 1 V and Tamb = 25 °C, per the Electrical Characteristics table in the official Vishay PLZ Series datasheet. This low IR supports energy-efficient operation in always-on circuits such as battery-backed real-time clocks or sensor wake-up monitors.
Can PLZ4V7C-G3/H be used in reflow soldering processes?
Yes, PLZ4V7C-G3/H is fully compatible with lead-free reflow soldering per J-STD-020, including peak temperatures up to 260 °C for 10 seconds at terminals. Its MicroSMF package and UL 94 V-0 compound ensure mechanical and parametric integrity through standard IPC-A-610 Class 2/3 reflow profiles without degradation of the PLZ4V7C-G3/H performance.
PLZ4V7C-G3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- PLZ
- Package/Case:
- DO-219AC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.81 V
- Tolerance:
- ±2.6%
- Power - Max:
- 960 mW
- Impedance (Max) (Zzt):
- 25 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AC (microSMF)
PLZ4V7C-G3/H FAQ
1.How can I place an order for PLZ4V7C-G3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for PLZ4V7C-G3/H 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 PLZ4V7C-G3/H reliable?
The price and inventory of PLZ4V7C-G3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PLZ4V7C-G3/H is usually 5 days.
3.What payment methods are accepted for PLZ4V7C-G3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PLZ4V7C-G3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PLZ4V7C-G3/H?
PLZ4V7C-G3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PLZ4V7C-G3/H 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 PLZ4V7C-G3/H?
For technical support, including PLZ4V7C-G3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PLZ4V7C-G3/H requirements.
6.How does Aetrix verify that PLZ4V7C-G3/H is sourced from the original manufacturer or authorized distributors?
All PLZ4V7C-G3/H 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 PLZ4V7C-G3/H meets industry standards.
7.What is the process for return or replacement of PLZ4V7C-G3/H?
All PLZ4V7C-G3/H units undergo pre-shipment inspection (PSI). If there is an issue with PLZ4V7C-G3/H, 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 PLZ4V7C-G3/H part is unused and in its original packaging.
Return procedure for PLZ4V7C-G3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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