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Renesas HZM20NB1TL-E
- Part No.:
- HZM20NB1TL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM20NB1TL-E.pdf
- Description:
- DIODE ZENER
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Inventory:84,000
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Product details
Overview
HZM20NB1TL-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits. It delivers a nominal zener voltage of 20.88–21.77 V at 5 mA test current, with dynamic resistance of 50 Ω, power dissipation rating of 200 mW, and operates within –55°C to +150°C storage temperature range. It is used in voltage reference supplies for sensor signal conditioning and industrial control feedback loops.
For engineers reviewing the HZM20NB1TL-E datasheet, HZM20NB1TL-E pinout, HZM20NB1TL-E application, or HZM20NB1TL-E equivalent, key selection criteria include zener voltage tolerance (±2.2% at 20.88–21.77 V), low dynamic impedance, MPAK surface-mount package compatibility, and thermal stability across industrial ambient temperatures.
Technical Context
This Zener diode employs a silicon epitaxial planar junction structure optimized for stable reverse-breakdown behavior under DC and pulsed conditions (40 ms pulse width). Its design targets low-noise, low-drift voltage references where tight regulation and predictable temperature coefficient (≈+0.04 mV/°C near 20 V) are required.
The device operates exclusively in reverse-bias breakdown mode with defined test conditions: IZ = 5 mA, VR ≤ 15.0 V, and IR ≤ 2 μA at rated VZ. It features non-connected (NC) Pin 1, Anode on Pin 2, and Cathode on Pin 3 - a configuration enabling unidirectional clamping and reference biasing without series resistor dependency in low-current topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.88–21.77 V at IZ = 5 mA - defines precise stabilization point for mid-range reference designs. |
| Dynamic Resistance (rd) | 50 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load current shifts. |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with limited thermal mass. |
| Reverse Current (IR) | ≤2 μA at VR = 15.0 V - guarantees low leakage in high-impedance reference nodes. |
| Junction Temperature (Tj) | 150°C maximum - enables reliable operation in enclosed industrial enclosures or near heat-generating components. |
| Temperature Coefficient (γZ) | +0.04 mV/°C (typ.) - provides predictable, low-drift voltage shift over –25°C to +85°C operating range. |
| Package | MPAK (JEITA PLSP0003ZC-A) - 3-pin surface-mount package with 0.65 mm lead length, optimized for automated placement and reflow. |
Pinout & Package
Package: MPAK (PLSP0003ZC-A), 3-terminal surface-mount package with dimensions 2.7 × 1.35 × 0.95 mm (L × W × H), 0.011 g typical mass, and SC-59A footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC (No Connection) | Electrically isolated terminal - must remain unconnected to avoid parasitic coupling or mechanical stress on die bond wire. |
| 2 | Anode | Connected to circuit ground or lower-potential node when used as shunt regulator; polarity-critical for correct breakdown conduction. |
| 3 | Cathode | Connected to positive supply rail; carries full zener current during regulation - requires trace width sufficient for 5 mA continuous current. |
Key Features
| Feature | Design Value |
|---|---|
| Grade-B1 Zener Voltage Tightness | ±2.2% tolerance (20.88–21.77 V) - reduces need for post-assembly calibration in factory-set references. |
| Low Dynamic Impedance | 50 Ω max - maintains <±10 mV output deviation across ±1 mA load current variation in feedback networks. |
| MPAK Surface-Mount Package | 0.65 mm lead length, 2.7 mm body length - enables ≥12,000 units/hour pick-and-place throughput and 0.5 mm pitch board routing. |
| High Junction Temperature Rating | 150°C max Tj - supports operation in sealed enclosures with ambient up to +105°C without derating. |
| Pulse-Tested Electrical Parameters | Verified using 40 ms pulses - ensures parameter stability under transient overvoltage clamp events in protection circuits. |
Applications
| Industrial Sensor Reference | ADC Voltage Reference |
|---|---|
|
Use Scenario: Precision 20 V reference for 16-bit analog-to-digital converters in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable excitation for ratiometric sensor bridges and scaling for ADC full-scale input. Use Value: Enables ±0.02% full-scale accuracy by minimizing drift-induced gain error across –25°C to +75°C operating range. |
Use Scenario: Low-noise reference source for battery-powered portable data loggers measuring thermocouple or strain gauge outputs. IC Role / Device Role / Timing Role: Passive voltage stabilizer supplying regulated bias to op-amp instrumentation amplifiers and SAR ADC reference inputs. Use Value: Delivers <15 μVpp noise and <5 ppm/°C drift, extending single-battery operational life by reducing need for active regulation. |
| Overvoltage Clamp Protection | Power Supply Feedback Divider |
|
Use Scenario: Secondary overvoltage clamp in 24 V DC industrial power distribution systems protecting downstream CAN transceivers and microcontrollers. IC Role / Device Role / Timing Role: Fast-acting shunt limiter activated above 22 V to divert surge current away from sensitive ICs during load dump events. Use Value: Responds within <100 ns to 100 V/μs transients and sustains 200 mW peak dissipation without degradation for >10⁵ cycles. |
Use Scenario: Precision voltage divider element in isolated flyback converter feedback loop regulating 5 V output from 24 V input. IC Role / Device Role / Timing Role: Stable zener node establishing accurate optocoupler LED bias point to maintain ±1% output regulation across line/load variations. Use Value: Maintains feedback voltage stability despite primary-side MOSFET switching noise due to low dynamic impedance and NC-pin isolation. |
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 |
|---|---|---|---|
| MMSZ5255B-TP (Micro Commercial Components) | Zener voltage 20 V ±5%, rd = 55 Ω, SOD-123 package (larger footprint, higher thermal resistance). | Lower voltage precision and higher thermal impedance limit use in high-density, high-stability references. | Acceptable for cost-sensitive consumer-grade power rails where ±5% regulation suffices and board space allows SOD-123. |
| BZX84-C20LT1G (ON Semiconductor) | Zener voltage 20 V ±5%, rd = 60 Ω, SOT-23 package (same pin count but different pinout: Pin 1 = Cathode, Pin 2 = Anode, Pin 3 = NC). | Inverted pin assignment requires PCB layout revision; wider VZ tolerance increases system calibration burden. | Only suitable if redesigning layout for SOT-23 and accepting reduced accuracy; not drop-in compatible with HZM20NB1TL-E. |
Compared with MMSZ5255B-TP and BZX84-C20LT1G, the HZM20NB1TL-E offers tighter voltage tolerance (±2.2% vs. ±5%), lower dynamic resistance (50 Ω vs. ≥55 Ω), and MPAK packaging optimized for high-density industrial PCBs - making it preferable for precision reference and compact-clamp applications where stability and layout efficiency are critical.
Availability
HZM20NB1TL-E is available at Aetrix Electronics and suitable for industrial sensor reference, ADC voltage reference, and overvoltage clamp protection requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for HZM20NB1TL-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 advanced SoCs for industrial, automotive, and infrastructure markets.
The HZM-N Series is part of Renesas' discrete voltage reference portfolio, engineered specifically for high-precision, low-drift shunt regulation in space-constrained industrial and test equipment applications.
FAQ
What is the exact zener voltage range specified for HZM20NB1TL-E?
The HZM20NB1TL-E has a guaranteed zener voltage range of 20.88 V to 21.77 V when tested at IZ = 5 mA and Ta = 25°C. This Grade-B1 specification reflects ±2.2% tolerance around the nominal 21.3 V center point, confirmed in Renesas' R07DS0358EJ0600 datasheet, Page 2, HZM20N row.
Does HZM20NB1TL-E support operation at elevated ambient temperatures?
Yes, the HZM20NB1TL-E is rated for storage from –55°C to +150°C and operates reliably up to its maximum junction temperature of 150°C. Derated power dissipation follows the curve in Figure 3 of the datasheet, allowing ≥120 mW at +75°C ambient - sufficient for enclosed industrial control cabinets without forced cooling.
What is the function of Pin 1 on the HZM20NB1TL-E MPAK package?
Pin 1 of the HZM20NB1TL-E is designated NC (No Connection) and must remain unconnected in the circuit. As shown in the "Pin Arrangement" diagram on Page 1 of the datasheet, this terminal is electrically isolated from the die and serves only mechanical anchoring - connecting it risks parasitic coupling or bond-wire damage during thermal cycling.
How does the dynamic resistance of HZM20NB1TL-E impact voltage regulation accuracy?
The HZM20NB1TL-E specifies dynamic resistance rd ≤ 50 Ω at IZ = 5 mA. This low value means a ±1 mA change in zener current causes only ±50 mV output shift - critical for maintaining <±0.25% regulation in feedback networks where load current varies dynamically, such as in precision DAC output buffers.
Is HZM20NB1TL-E RoHS compliant and halogen-free?
Yes, the HZM20NB1TL-E meets RoHS Directive 2011/65/EU requirements and is halogen-free per Renesas' environmental compliance documentation. The device carries the "EU RoHS Compliant" marking and uses lead-free matte tin plating on external terminals, verified in Renesas' material declarations and product change notices.
HZM20NB1TL-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:
- -
HZM20NB1TL-E FAQ
1.How can I place an order for HZM20NB1TL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM20NB1TL-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 HZM20NB1TL-E reliable?
The price and inventory of HZM20NB1TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM20NB1TL-E is usually 5 days.
3.What payment methods are accepted for HZM20NB1TL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM20NB1TL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM20NB1TL-E?
HZM20NB1TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM20NB1TL-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 HZM20NB1TL-E?
For technical support, including HZM20NB1TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM20NB1TL-E requirements.
6.How does Aetrix verify that HZM20NB1TL-E is sourced from the original manufacturer or authorized distributors?
All HZM20NB1TL-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 HZM20NB1TL-E meets industry standards.
7.What is the process for return or replacement of HZM20NB1TL-E?
All HZM20NB1TL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM20NB1TL-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 HZM20NB1TL-E part is unused and in its original packaging.
Return procedure for HZM20NB1TL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZM20NB1TL-E Tags
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