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Renesas HZS7C2LTD-E
- Part No.:
- HZS7C2LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS7C2LTD-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
HZS7C2LTD-E from Renesas Electronics is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 7.5 V (min 7.3 V, max 7.7 V), dynamic resistance of 60 Ω at 3.5 mA, and maximum power dissipation of 400 mW. It features low leakage current (<1 μA at 2.0 V), low zener impedance, and is optimized for stabilized power supply rails in instrumentation and sensor signal conditioning.
For engineers reviewing the HZS7C2LTD-E datasheet, HZS7C2LTD-E pinout, HZS7C2LTD-E application, or HZS7C2LTD-E equivalent, this device is selected for noise-sensitive reference design where zener voltage stability, temperature coefficient control, and consistent dynamic impedance across production lots are critical selection criteria.
Technical Context
This Zener diode operates in reverse breakdown mode with DC-tested zener voltage specification and exhibits a typical zener voltage temperature coefficient of −0.02 %/°C near 7.5 V, enabling predictable drift behavior over ambient temperature ranges. Its planar silicon construction ensures reproducible junction characteristics and low parametric variation across manufacturing batches.
The device is rated for junction temperatures up to 200°C and storage temperatures from −55°C to +175°C, supporting operation in industrial environments. Its 400 mW power rating is derated linearly above 25°C ambient per the published thermal curve, with 50% derating at ~100°C on standard FR-phenolic PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.3 V min / 7.7 V max at IZ = 0.5 mA - defines stable regulation window under light-load conditions |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 3.5 mA - determines output impedance and ripple rejection in shunt regulator designs |
| Reverse Leakage Current (IR) | <1 μA max at VR = 2.0 V - ensures minimal quiescent current draw in standby or low-power modes |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets absolute thermal limit for continuous DC operation on standard PCB |
| Junction Temperature (Tj) | 200°C max - enables reliable operation in high-ambient industrial enclosures without forced cooling |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 5 mm pitch compatible for high-speed automatic insertion, TO-236AA variant |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), molded plastic case with cathode band marking; dimensions per official Renesas drawing: φD = 2.0 mm, E = 2.4 mm, L = 26.0 mm, mass ≈ 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation |
| 2 | Anode | Connected to ground or lower-potential rail; forms return path for zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Noise performance | Approximately 1/3–1/10 lower diode noise than legacy HZ series - directly improves SNR in precision reference buffers |
| Zener voltage range | 7.3–7.7 V at 0.5 mA - tight tolerance supports ±3% regulation without external trimming |
| Thermal stability | Negative temperature coefficient (~−0.02 %/°C) - enables predictable, monotonic drift for compensation-aware designs |
| Manufacturing consistency | Planar silicon process with DC-tested VZ - ensures batch-to-batch repeatability critical for calibrated systems |
Applications
| High-Precision ADC Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 7.5 V reference for 16-bit SAR ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing fixed bias point for ADC internal reference buffer. Use Value: Low dynamic resistance (60 Ω) minimizes load-induced error; low noise preserves ENOB in high-resolution conversion. |
Use Scenario: Biasing bridge sensors (e.g., strain gauges) in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Zener-regulated excitation source ensuring constant bridge drive voltage despite supply fluctuations. Use Value: Tight VZ tolerance (±0.2 V) maintains measurement linearity; low leakage avoids offset drift in µA-level sensor currents. |
| Low-Power IoT Node Power Rail | Automotive Cabin Control Module |
Use Scenario: Generating local 7.5 V rail for RF transceiver bias in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-quiescent shunt regulator maintaining clean supply for sensitive RF front-end stages. Use Value: Sub-μA leakage at 2 V reverse bias extends battery life; 400 mW rating supports intermittent peak loads. |
Use Scenario: Stabilizing microcontroller I/O reference in HVAC control units exposed to engine bay temperature swings. IC Role / Device Role / Timing Role: Temperature-compensated voltage clamp protecting analog inputs from transient overvoltage. Use Value: 200°C max junction rating ensures reliability at under-hood temperatures; negative tempco aligns with system drift budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 (Nexperia) | 600 mW rating, 7.2–7.8 V VZ, 80 Ω rd at 5 mA - higher power but higher impedance and noise | Preferred where higher surge tolerance is needed; less suitable for ultra-low-noise references | Select HZS7C2LTD-E when noise floor and impedance are prioritized over surge margin |
| MMBZ5231B (ON Semiconductor) | 350 mW rating, 7.15–7.45 V VZ, 15 Ω rd at 20 mA - tighter VZ but requires higher test current and has higher leakage | Better for high-current shunt regulation; not optimal for low-IZ precision biasing | Choose HZS7C2LTD-E for 0.5 mA–3.5 mA operating range with guaranteed low leakage and noise |
Compared with BZX84-C7V5 and MMBZ5231B, HZS7C2LTD-E delivers superior noise performance and lower leakage at low test currents, making it uniquely suited for precision analog biasing where signal integrity and standby power are constrained.
Availability
HZS7C2LTD-E is available at Aetrix Electronics and suitable for high-precision ADC reference, industrial sensor signal conditioning, and low-power IoT node power rail applications requiring stable component supply, long-term manufacturability, and traceable lot history.
Supply support for HZS7C2LTD-E 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
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and infrastructure markets.
HZS7C2LTD-E belongs to the HZS-L Series of low-noise silicon planar Zener diodes, designed specifically for precision voltage reference and stabilization in analog signal chains where noise, leakage, and thermal drift are critical constraints.
FAQ
What is the zener voltage tolerance of HZS7C2LTD-E at 0.5 mA?
The HZS7C2LTD-E has a specified zener voltage range of 7.3 V minimum to 7.7 V maximum when tested at IZ = 0.5 mA, yielding a ±0.2 V absolute tolerance. This tight window supports accurate biasing without post-production calibration in many precision analog circuits. The value is DC-tested per Renesas REJ03G0166-0300 Rev.3.00.
Does HZS7C2LTD-E meet RoHS requirements?
Yes, HZS7C2LTD-E complies with the EU RoHS Directive as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is suitable for environmentally regulated industrial and consumer applications.
What is the maximum allowable ambient temperature for continuous operation of HZS7C2LTD-E?
HZS7C2LTD-E can operate continuously at ambient temperatures up to approximately 100°C on a standard 100 × 180 × 1.6 mm paper-phenolic PCB, where its 400 mW power rating is derated to 200 mW (50%). Full 400 mW operation is limited to Ta ≤ 25°C per the thermal curve in Renesas REJ03G0166-0300.
Is HZS7C2LTD-E pin-compatible with other devices in the HZS-L series?
Yes, all HZS-L series diodes-including HZS7C2LTD-E-share identical MHD package dimensions, pin arrangement (cathode at Pin 1, anode at Pin 2), and JEITA code GRZZ0002ZC-A. This allows direct substitution within the series for different zener voltages without layout changes.
What is the typical zener voltage temperature coefficient for HZS7C2LTD-E?
The typical zener voltage temperature coefficient for HZS7C2LTD-E is −0.02 %/°C, as shown in Figure 2 of the Renesas datasheet REJ03G0166-0300. This negative coefficient enables predictable, monotonic drift over temperature and supports simple first-order compensation in reference designs.
HZS7C2LTD-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZS7C2LTD-E FAQ
1.How can I place an order for HZS7C2LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS7C2LTD-E 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 HZS7C2LTD-E reliable?
The price and inventory of HZS7C2LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS7C2LTD-E is usually 5 days.
3.What payment methods are accepted for HZS7C2LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS7C2LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS7C2LTD-E?
HZS7C2LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS7C2LTD-E 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 HZS7C2LTD-E?
For technical support, including HZS7C2LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS7C2LTD-E requirements.
6.How does Aetrix verify that HZS7C2LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS7C2LTD-E 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 HZS7C2LTD-E meets industry standards.
7.What is the process for return or replacement of HZS7C2LTD-E?
All HZS7C2LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS7C2LTD-E, 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 HZS7C2LTD-E part is unused and in its original packaging.
Return procedure for HZS7C2LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS7C2LTD-E Tags
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MM5Z5V1ST1G
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