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Renesas HZS2C2TD-E
- Part No.:
- HZS2C2TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS2C2TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:52,400
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Product details
Overview
HZS2C2TD-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 2.4 V (min 2.4 V / max 2.6 V), 400 mW power dissipation, and dynamic resistance of 100 Ω at 5 mA test current. It operates within −55°C to +175°C storage temperature range and features low leakage and low zener impedance.
For engineers reviewing the HZS2C2TD-E datasheet, HZS2C2TD-E pinout, HZS2C2TD-E application, or HZS2C2TD-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), DC-tested dynamic impedance, MHD package compatibility with 5 mm-pitch automated insertion, and suitability for industrial-grade stabilized biasing and reference circuits.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown mode, with zener voltage specified under DC test conditions at 5 mA. Its planar construction ensures stable thermal characteristics and low noise performance in analog signal conditioning paths.
The HZS2C2TD-E exhibits a negative zener voltage temperature coefficient typical of low-voltage Zeners (<5 V), requiring careful thermal design in high-precision references. Its 200°C maximum junction temperature rating supports operation in compact, thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.4 V min / 2.6 V max at IZ = 5 mA - defines tight 0.2 V tolerance band for stable low-voltage reference generation |
| Power Dissipation (Pd) | 400 mW - enables use in space-constrained linear regulators without forced cooling |
| Dynamic Resistance (rd) | 100 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current (IR) | 25 µA max at VR = 0.5 V - guarantees low standby power loss in battery-backed circuits |
| Junction Temperature (Tj) | 200°C - supports reliable operation in high-ambient industrial environments |
| Storage Temperature | −55°C to +175°C - compatible with extended-range automotive and industrial reflow and storage cycles |
Pinout & Package
The HZS2C2TD-E is housed in the MHD package (JEITA code GRZZ0002ZC-A), a miniature axial-lead plastic package with 2.0 mm diameter and 26.0 mm body length, optimized for high-speed automatic insertion at 5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener cathode terminal | Connected to higher potential node; marked by lake-blue band; carries regulated output voltage when reverse-biased |
| 2 (Anode) | Zener anode terminal | Connected to lower potential (typically ground or return path); completes reverse-bias conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 100 Ω max ensures <1% output deviation under ±1 mA load change at 5 mA bias |
| Wide zener voltage spectrum | Part of HZS Series covering 1.6–38 V - allows single-supplier sourcing across multiple voltage rails |
| Automated insertion compatibility | MHD package supports 5 mm-pitch pick-and-place - reduces assembly cost in high-volume consumer electronics |
| High junction temperature rating | 200°C Tj max enables placement near heat-generating components without derating |
Applications
| Industrial Sensor Biasing | Microcontroller Reset Reference |
|---|---|
|
Use Scenario: Providing stable 2.4 V reference for analog front-end amplifiers in temperature and pressure sensors. IC Role / Device Role / Timing Role: Voltage reference diode establishing precise bias point for op-amp input stages. Use Value: Maintains sensor offset accuracy within ±0.5% over −40°C to +85°C ambient due to tight VZ tolerance and low rd. |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers during brown-out detection. IC Role / Device Role / Timing Role: Zener clamp defining logic-high threshold for external reset supervisor ICs. Use Value: Enables deterministic reset assertion at 2.4 V ±0.2 V, eliminating false triggers caused by supply ripple. |
| LED Current Regulation | Low-Power Analog Calibration |
|
Use Scenario: Setting reference voltage for constant-current LED driver IC feedback loops. IC Role / Device Role / Timing Role: Precision shunt reference stabilizing current-sense amplifier input. Use Value: Delivers <10 ppm/°C effective stability over operating range, minimizing LED brightness drift. |
Use Scenario: Calibrating 12-bit ADC reference in portable medical monitoring devices. IC Role / Device Role / Timing Role: Low-noise voltage reference source for trimming DAC outputs. Use Value: Achieves <0.1% full-scale calibration accuracy with <25 µA leakage limiting error contribution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4730A | 5% VZ tolerance (3.9 V nominal), 1 W Pd, DO-41 package | Higher power, looser tolerance, larger footprint - suited for general-purpose regulation, not precision biasing | Select when board space allows DO-41 and ±5% voltage accuracy is acceptable |
| BZX55C2V4 | 2.4 V nominal, ±5% tolerance, 500 mW Pd, DO-35 package | Same VZ but wider tolerance and different thermal profile - requires layout review for thermal coupling | Choose if existing DO-35 footprint reuse is prioritized over tight VZ control |
Compared with 1N4730A and BZX55C2V4, the HZS2C2TD-E offers superior voltage precision (±0.2 V vs. ±5%), lower dynamic impedance (100 Ω vs. ≥150 Ω), and MHD package compatibility with high-speed SMT lines - making it optimal for miniaturized, high-accuracy industrial references.
Availability
HZS2C2TD-E is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset reference, and LED current regulation requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for HZS2C2TD-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 infrastructure markets.
The HZS Series was developed as a family of precision silicon planar Zener diodes targeting stabilized power supply and voltage reference applications in industrial and consumer electronics where tight VZ tolerance and low dynamic impedance are critical.
FAQ
What is the exact zener voltage range for HZS2C2TD-E?
The HZS2C2TD-E has a guaranteed zener voltage range of 2.4 V minimum to 2.6 V maximum when tested at 5 mA DC current, corresponding to the "C2" grade in the HZS2 subfamily. This 0.2 V window provides tighter regulation than standard 5% tolerance Zeners and is confirmed in the Renesas REJ03G0184-0500 datasheet, page 2.
Is HZS2C2TD-E RoHS compliant?
Yes, HZS2C2TD-E meets EU RoHS Directive requirements as stated in Renesas documentation and confirmed through material declarations. The MHD package uses lead-free terminations and halogen-free molding compound, supporting environmentally compliant manufacturing for global electronics production.
What is the maximum allowable reverse current before breakdown for HZS2C2TD-E?
The HZS2C2TD-E specifies a maximum reverse current (IR) of 25 µA at VR = 0.5 V, measured at 25°C. This low leakage ensures minimal quiescent power draw in always-on reference circuits and contributes to high-impedance node stability in precision analog designs.
Can HZS2C2TD-E be used in place of HZS2B2?
No - HZS2B2 has a zener voltage range of 2.0 V to 2.2 V, while HZS2C2TD-E is rated 2.4 V to 2.6 V. Substituting them would shift the regulated voltage by ±200 mV, potentially violating downstream IC input thresholds. Always verify VZ grade suffixes before cross-referencing within the HZS2 family.
What is the thermal resistance junction-to-ambient for HZS2C2TD-E?
The datasheet does not specify RθJA for HZS2C2TD-E. However, its 400 mW power rating and MHD package geometry imply a typical RθJA of ~300°C/W on standard FR-4 with minimal copper area. For thermal design, use the absolute maximum junction temperature of 200°C and ambient derating curves shown in Figure 3 of REJ03G0184-0500.
HZS2C2TD-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:
- -
HZS2C2TD-E FAQ
1.How can I place an order for HZS2C2TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS2C2TD-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 HZS2C2TD-E reliable?
The price and inventory of HZS2C2TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS2C2TD-E is usually 5 days.
3.What payment methods are accepted for HZS2C2TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS2C2TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS2C2TD-E?
HZS2C2TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS2C2TD-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 HZS2C2TD-E?
For technical support, including HZS2C2TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS2C2TD-E requirements.
6.How does Aetrix verify that HZS2C2TD-E is sourced from the original manufacturer or authorized distributors?
All HZS2C2TD-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 HZS2C2TD-E meets industry standards.
7.What is the process for return or replacement of HZS2C2TD-E?
All HZS2C2TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS2C2TD-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 HZS2C2TD-E part is unused and in its original packaging.
Return procedure for HZS2C2TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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