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Renesas HZS9C2TD-E
- Part No.:
- HZS9C2TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS9C2TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
HZS9C2TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 9.3–9.7 V at 5 mA, dynamic resistance of 20 Ω max, and 400 mW power dissipation in MHD package. It delivers stable reference voltage in analog sensor interfaces and microcontroller reset circuits.
For engineers reviewing the HZS9C2TD-E datasheet, HZS9C2TD-E pinout, HZS9C2TD-E application, or HZS9C2TD-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low dynamic impedance (≤20 Ω), junction temperature rating (200°C), and compatibility with 5 mm-pitch automated insertion.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining a fixed reverse-biased breakdown voltage across its cathode-anode terminals under controlled test current (IZ = 5 mA). Its low leakage current (≤1 µA at VR = 1 V) and tight zener voltage grading (C2 grade) support high-accuracy biasing in analog front-ends.
The HZS9C2TD-E uses a silicon planar construction with gold-doped junction for improved stability and low temperature coefficient (≈−0.02 %/°C near 9.5 V). It is rated for continuous operation up to 200°C junction temperature and supports ambient temperatures from −55°C to +175°C in storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.3–9.7 V at IZ = 5 mA - defines precise regulation point for 9.5 V nominal reference design |
| Dynamic Resistance (rd) | ≤20 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW - supports continuous regulation in compact PCB layouts without forced cooling |
| Reverse Leakage (IR) | ≤1 µA at VR = 1 V - enables low-error bias networks in high-impedance circuits |
| Junction Temperature (Tj) | 200°C maximum - allows reliable operation in thermally constrained industrial environments |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - standardized 5 mm-pitch leaded package for high-speed automatic insertion |
Pinout & Package
The HZS9C2TD-E is housed in an MHD package (JEITA code GRZZ0002ZC-A), a radial-leaded, epoxy-molded, silicon planar diode package with 2.0 mm lead diameter and 26.0 mm body length. Cathode identified by lake-blue band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown voltage reference node | Connected to regulated rail; carries full zener current during regulation |
| 2 (Anode) | Reference ground return path | Biased at lower potential; completes current loop through series resistor |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 20 Ω max at 5 mA - minimizes AC ripple coupling into regulated output |
| Tight voltage grading (C2) | ±0.2 V tolerance at 9.5 V - eliminates need for post-production trimming in precision references |
| High thermal endurance | 200°C max junction temperature - enables use in engine control modules and industrial motor drives |
| Automated assembly compatibility | 5 mm pitch, MHD package - supports high-throughput placement on legacy and modern SMT lines with axial insertion adapters |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing 9.5 V ±0.2 V bias to Wheatstone bridge. Use Value: Enables <1% full-scale error over −40°C to +85°C ambient due to low tempco and stable rd. |
Use Scenario: Generating clean, temperature-stable reset threshold for 3.3 V microcontrollers in HVAC controllers. IC Role / Device Role / Timing Role: Zener-clamped voltage divider sets POR threshold independent of supply rail drift. Use Value: Guarantees deterministic reset assertion at 2.85 V with <±50 mV hysteresis via resistor ratio control. |
| Programmable Logic Supply Clamp | Analog Front-End Reference |
|
Use Scenario: Protecting FPGA I/O banks from overvoltage during hot-swap events in telecom line cards. IC Role / Device Role / Timing Role: Low-impedance clamp limiting rail excursion to 9.7 V during transient surges. Use Value: Absorbs 400 mW peak energy without degradation, preventing latch-up in 2.5 V/3.3 V I/O structures. |
Use Scenario: Providing stable reference for 12-bit ADCs in portable medical monitors. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source for ADC internal reference buffer. Use Value: Contributes <0.05% FS error budget via ≤1 µA leakage and 20 Ω rd under varying load currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4739A (ON Semiconductor) | Zener voltage 9.1 V ±5%, rd = 8 Ω, Pd = 1 W, DO-41 package | Higher power rating but looser tolerance (±5% vs ±0.2 V); larger footprint | Select when higher surge energy handling is required and tighter voltage accuracy is not critical |
| BZX55-C9V1 (Vishay) | Zener voltage 9.1 V ±5%, rd = 10 Ω, Pd = 500 mW, DO-35 package | Same grade tolerance as HZS9C2TD-E unavailable; DO-35 leads require different insertion tooling | Choose for cost-sensitive consumer designs where ±5% regulation is acceptable and board space is constrained |
Compared with 1N4739A and BZX55-C9V1, the HZS9C2TD-E offers superior voltage accuracy (±0.2 V vs ±5%) and MHD packaging optimized for high-volume automated assembly, making it preferred for industrial-grade precision references where calibration overhead must be minimized.
Availability
HZS9C2TD-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, microcontroller reset circuits, FPGA I/O clamping, and analog front-end references requiring stable component supply and long-term manufacturing continuity.
Supply support for HZS9C2TD-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 delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT applications.
The HZS Series is part of Renesas' discrete portfolio designed specifically for high-reliability voltage stabilization in industrial power supplies and precision analog signal chains.
FAQ
What is the exact zener voltage range for HZS9C2TD-E?
The HZS9C2TD-E has a guaranteed zener voltage range of 9.3 V to 9.7 V when tested at IZ = 5 mA and Ta = 25°C. This C2-grade specification reflects ±0.2 V tolerance around the nominal 9.5 V point, confirmed in Renesas document REJ03G0184-0500 Rev.5.00.
Does HZS9C2TD-E support automated PCB assembly?
Yes, the HZS9C2TD-E uses the MHD package (JEITA GRZZ0002ZC-A) with standardized 5 mm lead pitch, explicitly qualified for high-speed automatic insertion per the Renesas datasheet. Its radial-leaded form factor is compatible with both axial and radial placement equipment.
What is the maximum junction temperature rating for HZS9C2TD-E?
The HZS9C2TD-E is rated for a maximum junction temperature of 200°C, enabling operation in thermally demanding environments such as motor drive control boards or under-hood automotive modules. This rating is specified in the Absolute Maximum Ratings table of the official Renesas datasheet.
How does the dynamic resistance of HZS9C2TD-E affect regulation performance?
The HZS9C2TD-E exhibits dynamic resistance ≤20 Ω at IZ = 5 mA, meaning output voltage variation remains below 100 mV for ±5 mA load current changes. This low rd ensures stable reference behavior in precision analog circuits where supply ripple rejection is critical.
Is HZS9C2TD-E RoHS compliant?
Yes, HZS9C2TD-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.
HZS9C2TD-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:
- -
HZS9C2TD-E FAQ
1.How can I place an order for HZS9C2TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS9C2TD-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 HZS9C2TD-E reliable?
The price and inventory of HZS9C2TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS9C2TD-E is usually 5 days.
3.What payment methods are accepted for HZS9C2TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS9C2TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS9C2TD-E?
HZS9C2TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS9C2TD-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 HZS9C2TD-E?
For technical support, including HZS9C2TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS9C2TD-E requirements.
6.How does Aetrix verify that HZS9C2TD-E is sourced from the original manufacturer or authorized distributors?
All HZS9C2TD-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 HZS9C2TD-E meets industry standards.
7.What is the process for return or replacement of HZS9C2TD-E?
All HZS9C2TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS9C2TD-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 HZS9C2TD-E part is unused and in its original packaging.
Return procedure for HZS9C2TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS9C2TD-E Tags
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