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Renesas HZM4.3NB2JTL-E
- Part No.:
- HZM4.3NB2JTL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM4.3NB2JTL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:63,000
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Product details
Overview
HZM4.3NB2JTL-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 4.3 V (min 4.15 V, max 4.34 V) at 5 mA test current, with dynamic resistance of 130 Ω, power dissipation of 200 mW, and operates within –55°C to +150°C storage temperature range.
For engineers reviewing the HZM4.3NB2JTL-E datasheet, HZM4.3NB2JTL-E pinout, HZM4.3NB2JTL-E application, or HZM4.3NB2JTL-E equivalent, this device serves as a compact, surface-mount voltage reference for power supply regulation, sensor biasing, and overvoltage protection where tight tolerance (±2.3% zener voltage spread), low dynamic impedance, and MPAK package density are critical.
Technical Context
The HZM4.3NB2JTL-E employs a silicon epitaxial planar junction structure optimized for stable reverse breakdown behavior under DC and pulsed conditions (40 ms pulse width). Its zener voltage exhibits a positive temperature coefficient near zero crossing - approximately +0.02 mV/°C at 4.3 V - enabling predictable thermal drift in reference designs.
Rated for 200 mW power dissipation at 25°C ambient, its derating curve (Fig.3) shows linear reduction to ~120 mW at 75°C on standard FR-4 PCB with 1.6 mm copper foil. The device features three terminals: NC (pin 1), anode (pin 2), and cathode (pin 3), with non-connected pin 1 providing mechanical symmetry and layout flexibility in high-density routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.15 V to 4.34 V at IZ = 5 mA - defines stable regulation window for 3.3 V/5 V system references. |
| Dynamic Resistance (rd) | 130 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load transients. |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - supports continuous operation in space-constrained PCBs without forced cooling. |
| Reverse Current (IR) | 10 μA max at VR = 1.0 V - guarantees low leakage in standby-biased reference networks. |
| Junction Temperature (Tj) | 150°C maximum - enables reliable operation in industrial environments with elevated ambient temperatures. |
| Package | MPAK (JEITA PLSP0003ZC-A) - 3-pin SMT package with 0.65 mm lead pitch, footprint-compatible with SC-59A. |
| Temperature Coefficient (γZ) | +0.02 mV/°C typical at 4.3 V - provides near-zero drift compensation in mid-range zener applications. |
Pinout & Package
Package: MPAK (PLSP0003ZC-A), 3-terminal surface-mount package with dimensions 2.7–3.1 mm × 1.35–1.65 mm × 0.8–1.0 mm (L × W × H), mass 0.011 g, JEITA code SC-59A equivalent.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Electrically isolated terminal; used for mechanical symmetry and PCB pad balancing - must not be soldered to signal or ground. |
| 2 | Anode | Forward-biased terminal; connected to lower potential node in reverse-bias regulation configuration. |
| 3 | Cathode | Zener breakdown terminal; connected to higher potential node and output reference point in shunt regulator topology. |
Key Features
| Feature | Design Value |
|---|---|
| Grade B2 zener tolerance | ±2.3% (4.15–4.34 V) - enables tighter reference accuracy than standard-grade Zeners without trimming circuitry. |
| MPAK surface-mount package | 0.65 mm pin pitch, 2.9 mm × 1.5 mm footprint - supports automated placement and high-density board layouts. |
| Pulse-tested characterization | Parameters verified using 40 ms pulses - ensures specification validity under real-world transient loading conditions. |
| Low leakage performance | ≤10 μA at 1.0 V reverse bias - minimizes quiescent current draw in battery-powered reference circuits. |
| Thermal stability | +0.02 mV/°C tempco near 4.3 V - reduces need for external temperature compensation in industrial-grade sensors. |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Power Supply Monitoring |
|---|---|
|
Use Scenario: Biasing bridge sensors and amplifying low-level analog outputs in factory automation transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise 4.3 V reference for ADC input scaling and op-amp offset nulling. Use Value: Enables ±0.5% full-scale measurement accuracy by stabilizing reference voltage against supply ripple and temperature drift. |
Use Scenario: Monitoring 5 V rail integrity in embedded controllers during brown-out detection and reset assertion. IC Role / Device Role / Timing Role: Zener-clamped comparator input providing hysteresis-free threshold at 4.3 V for POR and reset logic. Use Value: Delivers deterministic reset timing with <1 μs response to rail collapse, eliminating false triggers from noise or slow decay. |
| Portable Medical Instrument Reference | LED Driver Current Setpoint |
|
Use Scenario: Providing stable excitation voltage for photodiode amplifiers in handheld pulse oximeters. IC Role / Device Role / Timing Role: Low-noise, low-leakage voltage reference sourcing bias current for transimpedance amplifier feedback network. Use Value: Maintains <0.1% gain stability across –20°C to +70°C operating range, directly improving SpO₂ calculation fidelity. |
Use Scenario: Setting constant-current threshold in discrete LED driver circuits for signage and indicator panels. IC Role / Device Role / Timing Role: Zener-based current-sense reference feeding into transistor base or op-amp error amplifier. Use Value: Achieves ±3% LED brightness consistency across units without calibration, reducing production test time. |
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 |
|---|---|---|---|
| BZX84-C4V3 (Diodes Inc.) | Same 4.3 V nominal, SOT-23 package, 350 mW Pd, 90 Ω rd, ±5% tolerance (vs. HZM4.3NB2JTL-E's ±2.3%) | Higher power rating suits higher-current shunt use; looser tolerance requires post-calibration in precision references. | Select when board space allows SOT-23 and higher dissipation is needed; avoid where grade-B2 accuracy is mandatory. |
| MMSZ4V3ET1G (ON Semiconductor) | 4.3 V nominal, SOD-123 package, 500 mW Pd, 100 Ω rd, ±5% tolerance, 100 nA IR @ 1 V (vs. 10 μA) | Ultra-low leakage benefits ultra-low-power IoT sensors; larger SOD-123 footprint increases PCB area vs. MPAK. | Prefer for battery-operated devices needing sub-μA standby current; not suitable for high-density MPAK-restricted layouts. |
Compared with BZX84-C4V3 and MMSZ4V3ET1G, the HZM4.3NB2JTL-E offers superior voltage tolerance (±2.3%) and compact MPAK packaging - making it optimal for space-constrained industrial control modules requiring calibrated reference stability without post-production trimming.
Availability
HZM4.3NB2JTL-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, microcontroller supply monitoring, and portable medical instrument reference circuits requiring stable component supply, consistent grading, and RoHS-compliant MPAK packaging.
Supply support for HZM4.3NB2JTL-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 automotive, industrial, and enterprise systems.
The HZM-N Series is part of Renesas' discrete Zener portfolio engineered specifically for high-accuracy, surface-mount voltage stabilization in space-constrained industrial and medical electronics - emphasizing tight grading, thermal predictability, and MPAK manufacturability.
FAQ
What is the exact zener voltage range for HZM4.3NB2JTL-E at 5 mA test current?
The HZM4.3NB2JTL-E has a guaranteed zener voltage range of 4.15 V to 4.34 V when tested at IZ = 5 mA, corresponding to Grade B2 tolerance per Renesas datasheet R07DS0358EJ0600. This 4.3 V nominal rating is confirmed across production lots and applies under standard 25°C ambient conditions with pulse testing (40 ms).
Does HZM4.3NB2JTL-E have a functional pin 1, and what happens if it's connected?
No - pin 1 of the HZM4.3NB2JTL-E is designated NC (No Connect) and is electrically isolated. Connecting pin 1 to any net - including ground or supply - violates the device's specified operating conditions and may cause unpredictable leakage or thermal stress. The NC pin exists solely for mechanical symmetry and PCB pad balance in the MPAK package.
How does the temperature coefficient of HZM4.3NB2JTL-E affect long-term reference stability?
The HZM4.3NB2JTL-E exhibits a typical temperature coefficient of +0.02 mV/°C near its 4.3 V operating point, as shown in Figure 2 of the datasheet. This near-zero tempco minimizes drift across –25°C to +85°C ambient ranges, supporting reference stability better than general-purpose Zeners - especially critical in unheated industrial enclosures where ambient shifts exceed 40°C.
Can HZM4.3NB2JTL-E replace a standard 1N4733A in a 4.3 V shunt regulator?
No - the HZM4.3NB2JTL-E is not a drop-in replacement for the 1N4733A. While both regulate near 4.3 V, the 1N4733A is a DO-41 through-hole device rated for 1 W, whereas the HZM4.3NB2JTL-E is an MPAK SMT device rated for 200 mW with different thermal derating, pinout (3-pin vs. 2-pin), and tighter B2 grading. PCB redesign and power path re-evaluation are required.
Is HZM4.3NB2JTL-E compliant with RoHS and REACH requirements?
Yes - the HZM4.3NB2JTL-E meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 as confirmed in Renesas' official compliance documentation. The MPAK package uses lead-free terminations and halogen-free molding compound, and no SVHC substances above threshold are present in its construction.
HZM4.3NB2JTL-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:
- -
HZM4.3NB2JTL-E FAQ
1.How can I place an order for HZM4.3NB2JTL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM4.3NB2JTL-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 HZM4.3NB2JTL-E reliable?
The price and inventory of HZM4.3NB2JTL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM4.3NB2JTL-E is usually 5 days.
3.What payment methods are accepted for HZM4.3NB2JTL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM4.3NB2JTL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM4.3NB2JTL-E?
HZM4.3NB2JTL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM4.3NB2JTL-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 HZM4.3NB2JTL-E?
For technical support, including HZM4.3NB2JTL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM4.3NB2JTL-E requirements.
6.How does Aetrix verify that HZM4.3NB2JTL-E is sourced from the original manufacturer or authorized distributors?
All HZM4.3NB2JTL-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 HZM4.3NB2JTL-E meets industry standards.
7.What is the process for return or replacement of HZM4.3NB2JTL-E?
All HZM4.3NB2JTL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM4.3NB2JTL-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 HZM4.3NB2JTL-E part is unused and in its original packaging.
Return procedure for HZM4.3NB2JTL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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