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Renesas HZM8.2NB3TL-E
- Part No.:
- HZM8.2NB3TL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM8.2NB3TL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:24,000
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Product details
Overview
HZM8.2NB3TL-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage stabilization in low-power analog and power-supply reference circuits. It delivers a nominal zener voltage of 8.28–8.64 V at 5 mA, with dynamic resistance of 30 Ω, maximum reverse current of 2 μA at 5.0 V, and 200 mW power dissipation in the MPAK (SC-59A) package - suitable for compact DC-DC feedback loops and sensor biasing.
For engineers reviewing the HZM8.2NB3TL-E datasheet, HZM8.2NB3TL-E pinout, HZM8.2NB3TL-E application, or HZM8.2NB3TL-E equivalent, key selection criteria include its B3-grade zener voltage tolerance (±2.2%), temperature coefficient of +0.03 mV/°C near 8.2 V, junction temperature limit of 150°C, and compatibility with high-density SMT assembly on standard FR-4 PCBs.
Technical Context
The HZM8.2NB3TL-E operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its specified zener breakdown threshold. Its epitaxial planar construction ensures tight voltage distribution and low leakage across production lots.
It is rated for 200 mW power dissipation at 25°C ambient, derating linearly to zero at 150°C junction temperature, and exhibits a positive temperature coefficient (+0.03 mV/°C) typical for zeners in the 8–9 V range - enabling predictable thermal drift compensation in reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.28–8.64 V at IZ = 5 mA - defines stable regulation point for feedback networks |
| Dynamic Resistance (rd) | 30 Ω max at IZ = 5 mA - determines load regulation sensitivity and ripple rejection |
| Reverse Current (IR) | 2 μA max at VR = 5.0 V - ensures minimal quiescent current in standby mode |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling on standard PCB layout |
| Junction Temperature (Tj) | –55 to +150°C - supports operation in industrial ambient environments without forced cooling |
| Temperature Coefficient (γZ) | +0.03 mV/°C - enables predictable, low-drift voltage reference over temperature |
| Package | MPAK (SC-59A), JEITA code PLSP0003ZC-A - 3-pin surface-mount footprint with 2.7 × 1.35 mm body |
Pinout & Package
Package: MPAK (SC-59A), 3-pin surface-mount package per JEITA PLSP0003ZC-A; dimensions 2.7 mm × 1.35 mm × 0.95 mm (L × W × H); mass 0.011 g; compatible with reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected terminal - must remain floating; no PCB trace or pad required |
| 2 | Anode | Connected to lower-potential node (e.g., ground or return path) in shunt regulation configuration |
| 3 | Cathode | Connected to regulated voltage node; reverse-biased during normal operation to maintain VZ |
Key Features
| Feature | Design Value |
|---|---|
| B3-grade voltage tolerance | ±2.2% zener voltage spread (8.28–8.64 V) - reduces calibration overhead in production test |
| Low dynamic impedance | 30 Ω max - improves line/load regulation and noise immunity in feedback paths |
| High-density MPAK package | SC-59A footprint (2.7 × 1.35 mm) - enables >10,000 units/in² board density in space-constrained modules |
| Controlled temperature coefficient | +0.03 mV/°C near 8.2 V - supports stable reference performance across –40°C to +85°C operating range |
| Low leakage current | 2 μA max at 5.0 V - minimizes error contribution in high-impedance bias networks |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Voltage Reference |
|---|---|
Use Scenario: Providing stable bias voltage for bridge-based pressure sensors in factory automation transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise excitation voltage for Wheatstone bridge. Use Value: Enables <±0.1% full-scale accuracy over temperature due to low rd and predictable γZ. |
Use Scenario: Supplying reference voltage to ADC input of battery-powered IoT edge node MCU. IC Role / Device Role / Timing Role: Low-leakage zener reference for internal 12-bit SAR ADC calibration. Use Value: Delivers stable 8.2 V reference with only 2 μA standby current, extending battery life >2 years. |
| DC-DC Converter Feedback Network | Overvoltage Protection Clamp |
Use Scenario: Setting output voltage in isolated flyback converter for industrial PLC power supply. IC Role / Device Role / Timing Role: Precision shunt element in optocoupler-coupled feedback loop. Use Value: Tight VZ tolerance ensures ±1.5% output regulation without post-production trimming. |
Use Scenario: Clamping transient surges on 5 V logic rail in automotive body control module. IC Role / Device Role / Timing Role: Fast-acting overvoltage clamp protecting downstream LDO and MCU inputs. Use Value: Activates at 8.28 V with 30 Ω rd, limiting clamped voltage to <8.5 V under 100 mA surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BS-7-F (Diodes Inc.) | 8.2 V nominal, ±5% tolerance, 300 mW Pd, SOT-323 package, rd = 35 Ω | Higher power rating but looser voltage tolerance; requires larger PCB area | Select when higher surge energy handling is needed and tighter VZ spec is not critical |
| BZX84-C8V2 (Nexperia) | 8.2 V nominal, ±5% tolerance, 300 mW Pd, SOT-23 package, rd = 40 Ω | Same pinout as HZM8.2NB3TL-E (Anode/Cathode/NC), but wider VZ spread and higher rd | Use where cost sensitivity outweighs precision requirements and existing SOT-23 layout reuse is prioritized |
Compared with MMBZ5240BS-7-F and BZX84-C8V2, the HZM8.2NB3TL-E provides superior voltage accuracy (±2.2% vs. ±5%), lower dynamic resistance (30 Ω vs. ≥35 Ω), and optimized MPAK footprint for ultra-dense layouts - making it preferred for high-precision, space-constrained industrial references.
Availability
HZM8.2NB3TL-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power microcontroller reference design, and DC-DC converter feedback networks requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for HZM8.2NB3TL-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 is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and enterprise systems.
The HZM-N Series is part of Renesas' precision discrete portfolio, engineered specifically for stable voltage reference and shunt regulation in high-reliability industrial power and signal-conditioning applications.
FAQ
What is the exact zener voltage range for HZM8.2NB3TL-E at 5 mA test current?
The HZM8.2NB3TL-E has a guaranteed zener voltage range of 8.28 V to 8.64 V when tested at IZ = 5 mA and Ta = 25°C. This B3-grade specification reflects ±2.2% tolerance around the nominal 8.2 V rating, confirmed in the Renesas R07DS0358EJ0600 datasheet, page 3. The HZM8.2NB3TL-E maintains this range across its qualified operating temperature span.
Does HZM8.2NB3TL-E have a functional pin 1 connection?
No - pin 1 of the HZM8.2NB3TL-E is designated "NC" (No Connect) and is internally unconnected. As shown in the Pin Arrangement diagram on page 1 of the Renesas datasheet, only pins 2 (Anode) and 3 (Cathode) are electrically active. PCB layout must leave pin 1 floating; no trace, pad, or thermal relief should be attached to it.
What is the maximum allowable reverse voltage before conduction for HZM8.2NB3TL-E?
The HZM8.2NB3TL-E guarantees reverse current ≤2 μA at VR = 5.0 V, meaning it remains effectively non-conductive below that threshold. Conduction begins near its specified zener voltage (8.28 V), with measurable current flow starting at approximately 7.5 V. This behavior is validated in the Electrical Characteristics table (page 3) and Fig.1 (Zener current vs. voltage).
Can HZM8.2NB3TL-E replace standard 1N4738A in existing designs?
No - the HZM8.2NB3TL-E is not a drop-in replacement for 1N4738A. While both regulate near 8.2 V, the HZM8.2NB3TL-E uses a 3-pin MPAK (SC-59A) package with pin 1 NC, whereas 1N4738A is a 2-pin DO-41 device. Additionally, the HZM8.2NB3TL-E has tighter tolerance (±2.2% vs. ±5%) and lower dynamic resistance (30 Ω vs. ~50 Ω), requiring layout and stability reassessment.
What is the thermal resistance junction-to-ambient for HZM8.2NB3TL-E on standard FR-4 PCB?
The HZM8.2NB3TL-E does not specify an explicit RθJA value in its datasheet. However, Fig.3 (Power Dissipation vs. Ambient Temperature, page 5) shows derating from 200 mW at 25°C to 0 mW at 150°C, implying a linear derating slope of –1.67 mW/°C. For a standard 1.6 mm FR-4 board with 1 oz Cu (per Fig.2 note), effective RθJA is approximately 600°C/W - consistent with typical SC-59A packaged Zeners under those conditions.
HZM8.2NB3TL-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:
- -
HZM8.2NB3TL-E FAQ
1.How can I place an order for HZM8.2NB3TL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM8.2NB3TL-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 HZM8.2NB3TL-E reliable?
The price and inventory of HZM8.2NB3TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM8.2NB3TL-E is usually 5 days.
3.What payment methods are accepted for HZM8.2NB3TL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM8.2NB3TL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM8.2NB3TL-E?
HZM8.2NB3TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM8.2NB3TL-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 HZM8.2NB3TL-E?
For technical support, including HZM8.2NB3TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM8.2NB3TL-E requirements.
6.How does Aetrix verify that HZM8.2NB3TL-E is sourced from the original manufacturer or authorized distributors?
All HZM8.2NB3TL-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 HZM8.2NB3TL-E meets industry standards.
7.What is the process for return or replacement of HZM8.2NB3TL-E?
All HZM8.2NB3TL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM8.2NB3TL-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 HZM8.2NB3TL-E part is unused and in its original packaging.
Return procedure for HZM8.2NB3TL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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