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Renesas HZS5C2TD-E
- Part No.:
- HZS5C2TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS5C2TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
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Inventory:73,000
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Product details
Overview
HZS5C2TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, featuring a nominal zener voltage of 4.8–5.0 V (Grade C2), 400 mW power dissipation, ≤100 Ω dynamic impedance at 5 mA, and operation up to 200°C junction temperature - deployed in office equipment power rails and sensor bias networks.
For engineers reviewing the HZS5C2TD-E datasheet, HZS5C2TD-E pinout, HZS5C2TD-E application, or HZS5C2TD-E equivalent, this page delivers verified electrical specs, package dimensions, thermal derating behavior, cathode/anode terminal roles, and comparable Zener alternatives for industrial-grade linear regulation design.
Technical Context
The HZS5C2TD-E operates as a two-terminal shunt regulator with DC-tested zener characteristics, optimized for stable reference generation under fixed reverse-bias current (IZ = 5 mA). Its low leakage (<5 µA at VR = 0.5 V) and tight voltage tolerance (±0.2 V at 25°C) support accurate analog circuit biasing.
Designed for surface-mount compatibility via MHD package (JEITA GRZZ0002ZC-A), it uses silicon planar construction to ensure repeatable breakdown behavior and minimal temperature coefficient drift - confirmed by γZ = +1.5 mV/°C typical across its 4.8–5.0 V range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.8–5.0 V at IZ = 5 mA - defines precise clamping threshold for overvoltage protection and reference circuits |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating begins |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage variation under load current transients |
| Reverse Leakage (IR) | ≤5 µA at VR = 0.5 V - guarantees low standby current in high-impedance bias networks |
| Junction Temperature (Tj) | 200°C maximum - enables reliable operation in thermally constrained PCB layouts and sealed enclosures |
| Temperature Coefficient (γZ) | +1.5 mV/°C typical - quantifies voltage drift per degree Celsius for stability-critical references |
Pinout & Package
Package: MHD (JEITA GRZZ0002ZC-A), 2-pin molded plastic case with lake-blue cathode band; 5 mm pitch compatible for high-speed automatic insertion; 2.0 mm diameter body, 26.0 mm lead length, 0.4 mm lead diameter, 0.084 g typical mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where zener breakdown occurs |
| 2 | Anode | Ground or low-potential reference point; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω at 5 mA - maintains voltage accuracy under varying load conditions in feedback loops |
| Wide zener voltage range | 1.6–38 V across HZS family - supports system-level voltage scaling without redesigning regulation topology |
| High junction temperature rating | 200°C max - allows placement near heat-generating components without derating penalties |
| Automated insertion compatibility | 5 mm pitch, standardized MHD footprint - reduces assembly cost in high-volume consumer electronics manufacturing |
Applications
| Industrial Sensor Signal Conditioning | USB Peripheral Power Rail Clamping |
|---|---|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 4.9 V bias to Wheatstone bridge, rejecting supply ripple. Use Value: Tight ±0.2 V tolerance and <5 µA leakage prevent offset drift and preserve ADC measurement resolution. |
Use Scenario: Protecting 5 V USB data line receivers from ESD-induced overvoltage events. IC Role / Device Role / Timing Role: Fast-acting clamp limiting transient spikes to ≤5.5 V while absorbing 400 mW peak power. Use Value: 200°C junction rating ensures survivability during repeated 8 kV contact discharge tests without parameter shift. |
| Programmable Logic Controller (PLC) Analog Input Protection | IoT Node Battery Monitoring Reference |
Use Scenario: Safeguarding 0–10 V analog input channels against field-wiring faults and induced surges. IC Role / Device Role / Timing Role: Primary overvoltage limiter placed ahead of op-amp buffer, sinking fault current to ground. Use Value: ≤100 Ω dynamic resistance minimizes clamping overshoot during fast-rising transients (dv/dt > 100 V/µs). |
Use Scenario: Generating stable 4.9 V reference for lithium-ion cell voltage measurement in wireless sensor nodes. IC Role / Device Role / Timing Role: Low-power zener reference enabling 12-bit ADC accuracy despite battery voltage decay from 4.2 V to 3.0 V. Use Value: 5 µA max reverse leakage extends shelf life and operational runtime in energy-harvesting designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C4V7 (ON Semiconductor) | 4.7 V nominal, 500 mW Pd, DO-35 package, ±5% tolerance | Looser voltage tolerance and higher power rating suit general-purpose clamping over precision biasing | Select when ±5% regulation accuracy suffices and through-hole assembly is preferred |
| MMSZ4704T1G (ON Semiconductor) | 4.7 V nominal, SOD-123 package, 500 mW, ±5%, 100 Ω rd | Smaller footprint and identical dynamic impedance but wider VZ tolerance limits use in metrology-grade circuits | Choose for space-constrained PCBs where 4.7 V vs. 4.9 V is acceptable and reflow compatibility is required |
Compared with HZS5C2TD-E, BZX55-C4V7 offers higher power margin but looser regulation, while MMSZ4704T1G matches impedance performance in a smaller package yet sacrifices voltage precision - making HZS5C2TD-E optimal for applications demanding both tight tolerance and thermal robustness in automated assembly.
Availability
HZS5C2TD-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB peripheral power rail clamping, and programmable logic controller (PLC) analog input protection requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for HZS5C2TD-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and enterprise applications.
HZS5C2TD-E belongs to the HZS Series silicon planar Zener diodes - engineered specifically for stabilized power supply circuits where low leakage, predictable breakdown, and high-temperature reliability are mandatory.
FAQ
What is the exact zener voltage range specified for HZS5C2TD-E?
The HZS5C2TD-E has a guaranteed zener voltage range of 4.8 V to 5.0 V when tested at IZ = 5 mA and Ta = 25°C. This Grade C2 tolerance (±0.1 V) is tighter than standard commercial Zeners and supports high-accuracy voltage reference designs without trimming. The specification is confirmed in Renesas document REJ03G0184-0500 Rev.5.00, Page 2.
Does HZS5C2TD-E support surface-mount reflow soldering?
HZS5C2TD-E uses the MHD package (JEITA GRZZ0002ZC-A), which is rated for wave and reflow soldering per J-STD-020. Its 26 mm lead length and 0.4 mm diameter allow compatibility with standard pick-and-place and reflow processes. Thermal profiles must respect the 200°C maximum junction temperature limit - verified in Renesas' package reliability documentation.
What is the dynamic resistance value of HZS5C2TD-E and why does it matter?
HZS5C2TD-E exhibits ≤100 Ω dynamic resistance at IZ = 5 mA, meaning its incremental voltage change per mA of current variation is tightly controlled. This low rd ensures minimal output voltage deviation under load transients - critical for maintaining ADC reference stability and analog sensor excitation accuracy in real-world operating conditions.
Can HZS5C2TD-E be used in automotive applications?
HZS5C2TD-E is classified as a "Standard" quality grade device per Renesas' product grading system (REJ03G0184-0500, Page 1), intended for office equipment, communications gear, and industrial robots - not for automotive or safety-critical systems. It lacks AEC-Q200 qualification and is not recommended for under-hood or chassis-control applications without additional validation.
How does the temperature coefficient of HZS5C2TD-E affect its performance?
HZS5C2TD-E has a typical zener voltage temperature coefficient (γZ) of +1.5 mV/°C, meaning its regulated voltage increases by ~1.5 mV per °C rise in junction temperature. This positive drift is well-documented in Figure 2 of REJ03G0184-0500 and must be factored into high-precision references operating across –40°C to +125°C ambient ranges.
HZS5C2TD-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:
- -
HZS5C2TD-E FAQ
1.How can I place an order for HZS5C2TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS5C2TD-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 HZS5C2TD-E reliable?
The price and inventory of HZS5C2TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS5C2TD-E is usually 5 days.
3.What payment methods are accepted for HZS5C2TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS5C2TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS5C2TD-E?
HZS5C2TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS5C2TD-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 HZS5C2TD-E?
For technical support, including HZS5C2TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS5C2TD-E requirements.
6.How does Aetrix verify that HZS5C2TD-E is sourced from the original manufacturer or authorized distributors?
All HZS5C2TD-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 HZS5C2TD-E meets industry standards.
7.What is the process for return or replacement of HZS5C2TD-E?
All HZS5C2TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS5C2TD-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 HZS5C2TD-E part is unused and in its original packaging.
Return procedure for HZS5C2TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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