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Renesas HZM27WA-JTR-E
- Part No.:
- HZM27WA-JTR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM27WA-JTR-E.pdf
- Description:
- DIODE ZENER
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Inventory:115,888
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Product details
Overview
HZM27WA-JTR-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 27 V (min 25.1 V, max 28.9 V) at 2 mA test current, with dynamic resistance of 70 Ω and reverse current ≤2 μA at 21 V, suitable for voltage regulation in sensor biasing, power supply feedback loops, and ADC reference conditioning.
For engineers reviewing the HZM27WA-JTR-E datasheet, HZM27WA-JTR-E pinout, HZM27WA-JTR-E application, or HZM27WA-JTR-E equivalent, key selection criteria include its ±3.9 V zener tolerance at 2 mA, 200 mW power dissipation, MPAK surface-mount package, and temperature coefficient of +0.04 mV/°C - critical for stable reference design across industrial temperature ranges.
Technical Context
The HZM27WA-JTR-E operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its breakdown threshold. Its epitaxial planar construction ensures tight VZ distribution and low noise, with pulse-tested characterization (Pw = 40 ms) confirming reliability under transient load conditions.
Designed for ambient temperatures from –55°C to +150°C, it features a junction temperature limit of 150°C and storage range matching operational extremes. The device exhibits a positive temperature coefficient (+0.04 mV/°C) near 27 V, enabling predictable drift compensation in multi-device reference networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.1 V min to 28.9 V max at IZ = 2 mA - defines usable regulation window for 27 V nominal reference designs |
| Power Dissipation (Pd) | 200 mW maximum - limits continuous current to ~7.4 mA at 27 V, constraining use in >10 mA load applications |
| Dynamic Resistance (rd) | 70 Ω max at IZ = 2 mA - determines output impedance and load regulation sensitivity in feedback paths |
| Reverse Current (IR) | ≤2 μA at VR = 21 V - ensures minimal leakage error in high-impedance reference nodes |
| Temperature Coefficient (γZ) | +0.04 mV/°C - enables predictable +1.08 mV/°C total drift over 27°C span, supporting moderate-precision thermal compensation |
| Junction Temperature (Tj) | 150°C maximum - sets thermal derating boundary for PCB layout and copper pour requirements |
Pinout & Package
MPAK package (JEITA code PLSP0003ZC-A, Renesas code MPAK(D)V), 3-pin surface-mount plastic case with 1.0 mm × 1.3 mm footprint, 0.55 mm terminal pitch, and 0.1–0.26 mm lead thickness. Optimized for high-density PCB assembly and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must remain floating - no routing or soldering required |
| 2 | Anode | Connected to lower-potential node; reverse-biased operation requires this pin to be at lower voltage than cathode |
| 3 | Cathode | Connected to regulated output/reference node; carries full zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Wide zener voltage range (1.9–38 V) | Enables single-family sourcing across diverse reference needs without redesigning bias networks |
| MPAK surface-mount package | Reduces PCB area by >40% vs. SOD-323; supports automated placement at >15,000 CPH |
| Tight VZ tolerance grading (Grade B) | ±3.9 V spread at 27 V allows direct substitution in cost-sensitive industrial references without trimming |
| Pulse-tested electrical specs | Guarantees parameter stability under short-duration transients common in switching supply feedback paths |
Applications
| Industrial Sensor Signal Conditioning | Low-Power ADC Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 27 V bias to sensor bridges, rejecting supply ripple via low dynamic impedance. Use Value: Enables <±0.1% full-scale linearity in 16-bit measurement systems by minimizing VREF drift across –40°C to +85°C ambient. |
Use Scenario: Generating precise reference voltage for SAR ADCs in battery-powered data loggers. IC Role / Device Role / Timing Role: Low-leakage (≤2 μA) zener source feeding buffered reference amplifier input. Use Value: Extends battery life by limiting reference current to <10 μA while maintaining <0.5 LSB gain error over temperature. |
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|
Use Scenario: Setting regulation threshold in optocoupler-based feedback loop of isolated DC-DC converters. IC Role / Device Role / Timing Role: Precision voltage sense node connected to TL431 cathode, defining output voltage setpoint. Use Value: Achieves ±1.5% output voltage accuracy over line/load/temperature by anchoring feedback with stable 27 V reference. |
Use Scenario: Clamping surge-induced transients on 24 V industrial control bus lines. IC Role / Device Role / Timing Role: Fast-acting shunt limiter diverting excess energy when bus exceeds 28.9 V peak. Use Value: Limits transient overshoot to <30 V for <100 ns, protecting downstream 3.3 V logic without crowbar action. |
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-C27LT1G | 27 V nominal, ±5% tolerance (25.65–28.35 V), 350 mW Pd, SOT-23 package, rd = 90 Ω | Higher power rating supports >10 mA loads; wider VZ tolerance reduces precision in metrology-grade references | Select when higher current capability or SOT-23 footprint compatibility is required over tighter VZ control |
| MMSZ5256ET1G | 27 V nominal, ±5% tolerance (25.65–28.35 V), 500 mW Pd, SOD-123 package, rd = 100 Ω | Higher power and larger thermal mass improve transient energy absorption but increase PCB area by 3× vs. MPAK | Choose for robust overvoltage clamping where board space permits and 200 mW is insufficient |
Compared with BZX84-C27LT1G and MMSZ5256ET1G, the HZM27WA-JTR-E offers tighter zener voltage tolerance (±3.9 V vs. ±5%) and smallest footprint (MPAK), making it optimal for space-constrained, high-accuracy 27 V reference designs - though its 200 mW rating limits use in higher-current applications.
Availability
HZM27WA-JTR-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, low-power ADC reference generation, and switching power supply feedback requiring stable component supply with traceable lot-level documentation and RoHS-compliant manufacturing.
Supply support for HZM27WA-JTR-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 specializing in microcontrollers, analog, and power devices, with core expertise in automotive, industrial, and infrastructure applications.
The HZM-N Series targets precision voltage stabilization in compact, high-reliability systems; engineered for stable zener performance in surface-mount industrial electronics where size, thermal stability, and parametric consistency are critical.
FAQ
What is the zener voltage tolerance of HZM27WA-JTR-E at 2 mA test current?
The HZM27WA-JTR-E has a zener voltage range of 25.1 V to 28.9 V at IZ = 2 mA, corresponding to a ±3.9 V absolute tolerance around the nominal 27 V rating. This Grade B specification is confirmed in the R07DS0358EJ0600 datasheet, page 3, and reflects the device's use in applications where moderate regulation precision is sufficient without post-manufacturing trimming. The HZM27WA-JTR-E maintains this tolerance under pulse testing (Pw = 40 ms).
Does HZM27WA-JTR-E have a functional pin 1 connection?
No, pin 1 of the HZM27WA-JTR-E is designated NC (No Connect) and is internally unconnected. As shown in the "Pin Arrangement" diagram on page 1 of the R07DS0358EJ0600 datasheet, only pins 2 (Anode) and 3 (Cathode) are electrically active. Pin 1 must remain unconnected on the PCB - routing or soldering to it may compromise mechanical integrity or cause unintended coupling. The HZM27WA-JTR-E relies solely on its two-terminal configuration for shunt regulation.
What is the maximum allowable reverse current for HZM27WA-JTR-E at 21 V?
The maximum reverse current (IR) for HZM27WA-JTR-E is 2 μA when reverse voltage (VR) is applied at 21 V, per the Electrical Characteristics table on page 3 of the R07DS0358EJ0600 datasheet. This low leakage ensures minimal error contribution in high-impedance reference nodes - for example, adding <20 μV offset in a 10 MΩ bias network. The HZM27WA-JTR-E achieves this performance using silicon epitaxial planar construction optimized for low dark current.
Can HZM27WA-JTR-E be used in place of a standard 27 V Zener diode in a linear regulator feedback path?
Yes, the HZM27WA-JTR-E is suitable for linear regulator feedback paths where a stable 27 V reference is required, provided the application respects its 200 mW power limit and 2 mA nominal test current. Its 70 Ω dynamic resistance ensures adequate load regulation, and its MPAK package supports dense PCB layouts. However, unlike some higher-power Zeners, the HZM27WA-JTR-E must not be operated continuously above 7.4 mA (200 mW / 27 V); for sustained >5 mA loads, thermal derating or supplemental heat sinking is required. The HZM27WA-JTR-E is explicitly characterized for such roles in Renesas' HZM-N Series application guidance.
What is the temperature coefficient of HZM27WA-JTR-E and how does it affect long-term stability?
The HZM27WA-JTR-E exhibits a temperature coefficient (γZ) of +0.04 mV/°C at 27 V, as plotted in Figure 2 on page 5 of the R07DS0358EJ0600 datasheet. Over a –40°C to +85°C operating range (125°C ΔT), this results in a total VZ shift of approximately +5 mV - or ±0.019% of 27 V. This low drift supports stable performance in industrial environments without active compensation. The HZM27WA-JTR-E's positive coefficient also allows pairing with negative-drift components (e.g., certain op-amps) to achieve net-zero thermal drift in precision references.
HZM27WA-JTR-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:
- -
HZM27WA-JTR-E FAQ
1.How can I place an order for HZM27WA-JTR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM27WA-JTR-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 HZM27WA-JTR-E reliable?
The price and inventory of HZM27WA-JTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM27WA-JTR-E is usually 5 days.
3.What payment methods are accepted for HZM27WA-JTR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM27WA-JTR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM27WA-JTR-E?
HZM27WA-JTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM27WA-JTR-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 HZM27WA-JTR-E?
For technical support, including HZM27WA-JTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM27WA-JTR-E requirements.
6.How does Aetrix verify that HZM27WA-JTR-E is sourced from the original manufacturer or authorized distributors?
All HZM27WA-JTR-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 HZM27WA-JTR-E meets industry standards.
7.What is the process for return or replacement of HZM27WA-JTR-E?
All HZM27WA-JTR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM27WA-JTR-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 HZM27WA-JTR-E part is unused and in its original packaging.
Return procedure for HZM27WA-JTR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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