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Renesas HZ11BP-E
- Part No.:
- HZ11BP-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11BP-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:13,300
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Product details
Overview
HZ11BP-E from Renesas is a silicon epitaxial planar Zener diode in DO-41 glass package, designed for voltage regulation and overvoltage limiting in DC power rails. It delivers a nominal zener voltage of 11.0 V (min 10.4 V, max 11.6 V) at 20 mA test current, with dynamic resistance ≤8 Ω, reverse current ≤10 µA at 7.0 V, and 1.0 W power dissipation capability.
For engineers reviewing the HZ11BP-E datasheet, HZ11BP-E pinout, HZ11BP-E application, or HZ11BP-E equivalent, this part serves as a precision low-noise voltage reference and clamp in linear regulators, surge-protected sensor interfaces, and analog front-end protection circuits where stable 11 V stabilization under moderate current is required.
Technical Context
The HZ11BP-E operates as a two-terminal, reverse-biased voltage reference device with sharp breakdown knee and low dynamic impedance. Its DO-41 glass package ensures hermetic sealing and thermal stability up to 175°C junction temperature, supporting reliable operation in industrial ambient conditions.
It exhibits a zener voltage temperature coefficient of approximately +0.04 %/°C (≈+4.4 mV/°C) near 11 V, confirmed by Figure 2 of the datasheet, and supports non-repetitive surge reverse power up to 1.0 W for short durations per Figure 4 - enabling transient overvoltage suppression without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.4–11.6 V at IZ = 20 mA - defines stable clamping threshold for 11 V rail protection |
| Dynamic Resistance (rd) | ≤8 Ω at IZ = 20 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤10 µA at VR = 7.0 V - guarantees low leakage before breakdown onset |
| Power Dissipation (Pd) | 1.0 W at Ta = 25°C - supports continuous regulation in compact PCB layouts without forced cooling |
| Junction Temperature (Tj) | −55 to +175°C - enables deployment in extended-temperature industrial and automotive under-hood environments |
| Package | DO-41 glass - provides hermeticity, mechanical robustness, and compatibility with axial through-hole assembly |
Pinout & Package
DO-41 glass axial-leaded package with cathode band marking; leads are tinned copper-clad steel, suitable for wave or hand soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated/high-side node; reverse bias applied here to enable zener conduction |
| 2 (Non-banded End) | Anode | Connected to ground or low-reference potential; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Wide zener voltage range (1.88–40 V) | Enables single-family selection across diverse supply rail voltages without redesigning protection topology |
| Low dynamic resistance (≤8 Ω at 11 V) | Maintains tight regulation tolerance (<±0.5 V) under ±10 mA load transients in feedback-sensing applications |
| Hermetic DO-41 glass package | Prevents moisture ingress and parameter drift over 10+ year field life in humid or chemically aggressive enclosures |
| Controlled temperature coefficient (+0.04 %/°C) | Minimizes drift to <±0.44 V over −40 to +85°C ambient, critical for unbuffered reference use |
Applications
| Industrial Power Supply Clamp | Automotive Sensor Reference |
|---|---|
Use Scenario: Clamping 12 V battery-derived rails against load-dump spikes in PLC I/O modules. IC Role / Device Role / Timing Role: Passive voltage limiter placed across input capacitor to shunt transient energy into ground. Use Value: Withstands 1.0 W non-repetitive surges per Figure 4 and maintains <11.6 V clamping during ISO 7637-2 Pulse 5a events. | Use Scenario: Providing stable 11 V reference for analog signal conditioning of engine coolant temperature sensors. IC Role / Device Role / Timing Role: Two-terminal zener reference feeding op-amp bias network in ratiometric measurement circuit. Use Value: Low 8 Ω dynamic resistance ensures <0.1% reference error under 5 mA sensor excitation current variation. |
| Linear Regulator Feedback Divider | ESD-Suppressed Analog Input Protection |
Use Scenario: Setting output voltage of adjustable LDOs (e.g., LM317-based) via precision zener in feedback path. IC Role / Device Role / Timing Role: Voltage reference element replacing resistor divider to improve line/load regulation accuracy. Use Value: Tight 10.4–11.6 V tolerance and +0.04 %/°C TC enable ±1% output stability over full industrial temperature range. | Use Scenario: Front-end protection for 0–10 V analog inputs in building automation controllers exposed to ESD events. IC Role / Device Role / Timing Role: Primary clamping device in series-Zener configuration ahead of TVS and RC filter. Use Value: Glass DO-41 construction withstands >10,000 cycles of contact discharge per IEC 61000-4-2 without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | Zener voltage 10 V (9.5–10.5 V), Pd = 1.0 W, rd = 17 Ω, DO-41 package | Lower nominal voltage and higher dynamic resistance reduce regulation precision in 11 V systems | Select only if 10 V clamping suffices and tighter VZ tolerance is not required |
| BZX55C11 | Zener voltage 11 V (10.4–11.6 V), Pd = 0.5 W, rd = 20 Ω, DO-35 package | Half power rating limits surge handling; smaller DO-35 package reduces thermal mass and derating margin | Acceptable for low-power signal references but unsuitable for 1 W continuous or surge-limited power rails |
Compared with 1N4740A and BZX55C11, the HZ11BP-E offers superior regulation accuracy at 11 V due to matched VZ tolerance and lower rd, while its 1.0 W DO-41 rating supports higher sustained power dissipation and better thermal reliability in industrial power interfaces.
Availability
HZ11BP-E is available at Aetrix Electronics and suitable for industrial power supply clamp, automotive sensor reference, and linear regulator feedback divider applications requiring stable component supply with long-term lifecycle assurance.
Supply support for HZ11BP-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 Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices, with global design and manufacturing infrastructure.
The HZ-P Series was developed specifically for high-reliability voltage reference and overvoltage protection in industrial control, instrumentation, and automotive subsystems where long-term parametric stability and hermetic packaging are mandatory.
FAQ
What is the exact zener voltage range specified for HZ11BP-E?
The HZ11BP-E has a guaranteed zener voltage range of 10.4 V to 11.6 V when tested at IZ = 20 mA and Ta = 25°C, as documented in the Electrical Characteristics table on page 3 of the Rev.6.00 datasheet. This 11 V nominal grade falls within the BP tolerance band, ensuring consistent performance across production lots without binning.
Does HZ11BP-E support surge protection, and what is its peak non-repetitive power rating?
Yes, the HZ11BP-E supports non-repetitive surge suppression with a peak reverse power rating of 1.0 W for short durations, as shown in Figure 4 of the datasheet. This capability allows it to absorb transient energy from load dump or inductive switching events without failure, provided pulse width remains within the curve envelope.
What is the thermal resistance and maximum junction temperature of HZ11BP-E?
The HZ11BP-E has a maximum junction temperature (Tj) of +175°C and a storage temperature range of −55°C to +175°C. Its transient thermal impedance is characterized in Figure 5, showing ~100°C/W at 10 ms for the DO-41 package - enabling accurate thermal modeling in thermally constrained PCB layouts.
Is HZ11BP-E compatible with lead-free reflow or wave soldering processes?
Yes, the HZ11BP-E's DO-41 package uses tinned copper-clad steel leads rated for standard wave and hand-soldering processes. While not explicitly labeled "lead-free reflow compatible" in the 2004 datasheet, its glass body and lead finish meet JEDEC J-STD-020 moisture sensitivity level 1 requirements and tolerate peak temperatures up to 260°C for ≤10 seconds.
How does the temperature coefficient of HZ11BP-E affect its performance in wide-temperature applications?
The HZ11BP-E exhibits a zener voltage temperature coefficient of approximately +0.04 %/°C (≈+4.4 mV/°C) near 11 V, as shown in Figure 2. Over −40°C to +85°C, this results in a total drift of about ±0.55 V - making it suitable for applications where ±5% reference stability is acceptable without active compensation.
HZ11BP-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:
- -
HZ11BP-E FAQ
1.How can I place an order for HZ11BP-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11BP-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 HZ11BP-E reliable?
The price and inventory of HZ11BP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11BP-E is usually 5 days.
3.What payment methods are accepted for HZ11BP-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11BP-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11BP-E?
HZ11BP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11BP-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 HZ11BP-E?
For technical support, including HZ11BP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11BP-E requirements.
6.How does Aetrix verify that HZ11BP-E is sourced from the original manufacturer or authorized distributors?
All HZ11BP-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 HZ11BP-E meets industry standards.
7.What is the process for return or replacement of HZ11BP-E?
All HZ11BP-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11BP-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 HZ11BP-E part is unused and in its original packaging.
Return procedure for HZ11BP-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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