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Renesas HZS11C1TD-E
- Part No.:
- HZS11C1TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS11C1TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
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Inventory:12,500
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Product details
Overview
HZS11C1TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in stabilized power supply circuits, featuring a nominal zener voltage of 11.6–11.9 V at 5 mA test current, 400 mW power dissipation, and low dynamic resistance of 7.5 Ω - deployed in industrial control power rails and analog reference subsystems.
For engineers reviewing the HZS11C1TD-E datasheet, HZS11C1TD-E pinout, HZS11C1TD-E application, or HZS11C1TD-E equivalent, this page delivers verified electrical specifications, package geometry, real-world use cases, and validated alternative parts for voltage reference design, ESD-robust biasing, and low-power regulator feedback networks.
Technical Context
The HZS11C1TD-E operates as a two-terminal voltage reference device using avalanche breakdown in a planar-diffused silicon junction. Its zener voltage is specified at 5 mA with ±0.3 V tolerance (11.6–11.9 V), and it exhibits a temperature coefficient of approximately +0.05 %/°C (≈+5.8 mV/°C) near 12 V, enabling stable regulation across −55°C to +175°C storage range.
It supports DC-biased operation only (per datasheet Note 1), with maximum reverse leakage current ≤1 µA at VR = 9.5 V and dynamic impedance measured at 5 mA. The device is not rated for transient surge suppression or AC waveform clamping - its role is strictly steady-state DC voltage stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.6–11.9 V at IZ = 5 mA - defines precise DC reference point for feedback loops or bias networks. |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating applies. |
| Dynamic Resistance (rd) | 7.5 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity in shunt regulator topologies. |
| Reverse Leakage Current | ≤1 µA at VR = 9.5 V - ensures minimal quiescent current draw in high-impedance reference nodes. |
| Junction Temperature (Tj) | 200°C maximum - enables operation in thermally demanding environments such as enclosed industrial enclosures. |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 5 mm pitch, axial-leaded, phenolic board-mount package for high-speed auto-insertion. |
Pinout & Package
MHD package: axial-leaded, cylindrical body with cathode band marking; lead diameter 0.4 mm, overall length 26.0 mm, body diameter 2.0 mm; mass ≈0.084 g; RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side terminal | Connected to regulated voltage node; carries full zener current in shunt configuration. |
| 2 (Anode) | Low-side terminal | Typically grounded or tied to lower potential; completes current path through external series resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 7.5 Ω at 5 mA - improves regulation accuracy under varying load currents in shunt references. |
| Wide zener voltage range coverage | Part of HZS Series spanning 1.6–38 V - allows selection of optimal reference voltage without redesigning bias network topology. |
| High reliability construction | Silicon planar diffusion process with 200°C max junction temperature - supports long-term stability in industrial-grade applications. |
| Automated assembly compatibility | 5 mm pitch axial leads and MHD package - optimized for high-speed insertion into PCBs using standard pick-and-place equipment. |
Applications
| Industrial Power Supply Reference | Analog Sensor Biasing |
|---|---|
|
Use Scenario: Providing stable 12 V reference for op-amp-based error amplifiers in isolated DC-DC converters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing feedback setpoint for PWM controller ICs. Use Value: Enables ±1% output regulation over line/load/temperature with minimal external components and no active circuitry. |
Use Scenario: Generating precise bias voltage for bridge-type pressure sensors in factory automation transmitters. IC Role / Device Role / Timing Role: Passive voltage reference source for ratiometric excitation of Wheatstone bridges. Use Value: Delivers <10 ppm/°C drift contribution to total system error budget due to matched tempco characteristics. |
| Microcontroller Reset Circuit | LED Driver Current Setting |
|
Use Scenario: Threshold detection in RC-based power-on reset (POR) circuits for embedded microcontrollers. IC Role / Device Role / Timing Role: Voltage threshold element triggering reset assertion when supply rises above 11.6 V. Use Value: Eliminates need for dedicated supervisor IC while maintaining deterministic reset timing within 5% tolerance. |
Use Scenario: Setting constant current for indicator LEDs in HMI panels operating from unregulated 15 V rail. IC Role / Device Role / Timing Role: Shunt reference defining voltage drop across series current-sense resistor. Use Value: Maintains LED brightness within ±3% over ambient temperature range −40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A (ON Semiconductor) | Zener voltage 12 V ±5%, Pd = 1 W, DO-41 package, rd = 9 Ω | Higher power rating but looser voltage tolerance and larger footprint; requires PCB layout revision. | Select when higher power margin is needed and ±5% VZ tolerance is acceptable. |
| BZX55C12 (Vishay) | Zener voltage 12 V ±5%, Pd = 500 mW, DO-35 package, rd = 15 Ω | Same nominal voltage but wider tolerance, higher impedance, and different lead spacing (2.5 mm vs. 5 mm). | Choose only if legacy DO-35 footprint compatibility is required and dynamic impedance >10 Ω is tolerable. |
Compared with 1N4742A and BZX55C12, the HZS11C1TD-E offers tighter voltage tolerance (±0.3 V vs. ±0.6 V), lower dynamic impedance (7.5 Ω vs. ≥9 Ω), and MHD package compatibility with automated insertion - making it preferable for space-constrained, high-accuracy industrial reference designs where 5 mm pitch is standardized.
Availability
HZS11C1TD-E is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning circuits, microcontroller reset networks, and LED biasing applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for HZS11C1TD-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 manufacturer formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZS Series was developed as a family of precision silicon Zener diodes targeting cost-sensitive yet reliability-critical voltage reference needs in industrial power conversion and analog signal chains - emphasizing tight VZ tolerance, low rd, and automated assembly readiness.
FAQ
What is the exact zener voltage range for HZS11C1TD-E?
The HZS11C1TD-E has a guaranteed zener voltage range of 11.6 V to 11.9 V when tested at IZ = 5 mA and Ta = 25°C, corresponding to Grade C3 in the HZS11 family per Renesas datasheet REJ03G0184-0500 Rev.5.00. This ±0.15 V tolerance supports high-accuracy reference applications without trimming.
Does HZS11C1TD-E support AC or pulsed operation?
No - the HZS11C1TD-E is specified for DC operation only, as explicitly noted in the datasheet ("Tested with DC"). Its dynamic resistance, leakage, and voltage ratings are characterized under steady-state DC conditions; AC or transient use may cause unpredictable regulation behavior or accelerated degradation.
What is the thermal derating behavior of HZS11C1TD-E above 25°C?
Per Figure 3 in the HZS Series datasheet, HZS11C1TD-E power dissipation linearly derates from 400 mW at 25°C to zero at approximately 150°C ambient. The derating slope is ~3.3 mW/°C above 25°C, requiring thermal design consideration in enclosed or high-ambient environments.
Is HZS11C1TD-E compliant with RoHS and lead-free requirements?
Yes - the HZS11C1TD-E uses RoHS-compliant materials and processes, as confirmed by Renesas' environmental compliance documentation and the "RoHS Directive" reference in the datasheet's environmental notice section. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
Can HZS11C1TD-E be used in place of a 12 V Zener diode like 1N4742A?
Not as a direct replacement - although both regulate near 12 V, the HZS11C1TD-E has tighter tolerance (11.6–11.9 V vs. 11.4–12.6 V), lower power rating (400 mW vs. 1 W), and different package (MHD vs. DO-41). Substitution requires validation of voltage margin, thermal headroom, and mechanical fit in the target PCB layout.
HZS11C1TD-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:
- -
HZS11C1TD-E FAQ
1.How can I place an order for HZS11C1TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS11C1TD-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 HZS11C1TD-E reliable?
The price and inventory of HZS11C1TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS11C1TD-E is usually 5 days.
3.What payment methods are accepted for HZS11C1TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS11C1TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS11C1TD-E?
HZS11C1TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS11C1TD-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 HZS11C1TD-E?
For technical support, including HZS11C1TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS11C1TD-E requirements.
6.How does Aetrix verify that HZS11C1TD-E is sourced from the original manufacturer or authorized distributors?
All HZS11C1TD-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 HZS11C1TD-E meets industry standards.
7.What is the process for return or replacement of HZS11C1TD-E?
All HZS11C1TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS11C1TD-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 HZS11C1TD-E part is unused and in its original packaging.
Return procedure for HZS11C1TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS11C1TD-E Tags
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