My Inquiry
My Account
onsemi SZMMSZ3V6T1G
- Part No.:
- SZMMSZ3V6T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
SZMMSZ3V6T1G.pdf
- Description:
- DIODE ZENER 3.6V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:12,569
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMMSZ3V6T1G from onsemi is a 3.6 V ±5% Zener voltage regulator diode in SOD−123 package, rated for 500 mW power dissipation at 75°C, with 90 Ω dynamic impedance at 5 mA test current and 5 µA reverse leakage at 1 V reverse bias - used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the SZMMSZ3V6T1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (340°C/W), AEC−Q101 qualification, ESD rating (>16 kV HBM), and Pb−free SOD−123 footprint compatibility with automated assembly.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable 3.6 V output across load variations by conducting reverse current above its breakdown threshold. It exhibits a temperature coefficient near zero (≈0 mV/°C) in the 3.3–3.9 V range, minimizing drift in ambient-temperature-sensitive circuits.
Designed for surface-mount use on FR−4/FR−5 boards, it delivers specified performance under pulsed (1 ms) and steady-state conditions, with derating applied above 75°C ambient. Its cathode-anode polarity is marked by a band, and maximum soldering temperature is 260°C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.42 V min / 3.6 V nominal / 3.78 V max @ IZT = 5 mA - defines regulated output voltage window with ±5% tolerance. |
| Power Dissipation (PD) | 500 mW @ TL = 75°C - sets maximum continuous power handling before thermal derating begins. |
| Zener Impedance (ZZT) | 90 Ω max @ IZT = 5 mA - determines regulation stiffness and AC ripple rejection capability. |
| Reverse Leakage (IR) | 5 µA max @ VR = 1 V - ensures minimal standby current draw in low-power battery applications. |
| Thermal Resistance (RJA) | 340°C/W - quantifies junction-to-ambient heat transfer efficiency on standard PCB layout. |
| ESD Rating | Class 3 (>16 kV) per HBM - supports robust handling in manual assembly and field-replaceable modules. |
| AEC−Q101 Qualified | Yes - validates suitability for automotive electronics requiring stress-tested reliability and PPAP compliance. |
Pinout & Package
SOD−123 surface-mount plastic package (1.60 × 2.69 × 1.16 mm), void-free thermosetting case with corrosion-resistant finish; cathode indicated by polarity band; UL 94 V−0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased terminal where Zener breakdown occurs. |
| 2 (Unbanded End) | Anode | Connected to circuit ground or lower-potential rail; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Automated assembly optimized package | SOD−123 footprint enables high-speed pick-and-place and reflow compatibility without tombstoning risk. |
| High-density mounting capability | Small 1.60 × 2.69 mm outline allows placement in space-constrained IoT sensor nodes and wearables. |
| Stable low-voltage reference | 3.6 V nominal Zener with near-zero TC enables accurate ADC reference or comparator threshold setting. |
| Pb−free and RoHS compliant | Meets global environmental regulations and eliminates lead contamination risk in medical and consumer devices. |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Control Module |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit SAR ADC measuring thermistor or RTD outputs in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 3.6 V bias to ADC VREF pin and op-amp feedback networks. Use Value: Maintains <±0.18 V regulation window across temperature, ensuring ≤0.5% measurement error in 0–85°C operating range. | Use Scenario: Overvoltage clamp protecting LIN bus transceiver input against load-dump transients in HVAC control units. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between LIN line and ground, clamping spikes above 3.78 V. Use Value: Limits transient energy with 500 mW surge capability and <90 Ω dynamic impedance, preventing IC latch-up during ISO 7637-2 pulse 5a events. |
| Portable Medical Pulse Oximeter | Smart Home Smoke Detector MCU Power Rail |
Use Scenario: Providing precise bias to photodiode amplifier stage in battery-powered oximetry front-end. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing DC operating point for transimpedance amplifier. Use Value: Delivers <5 µA leakage at 1 V reverse bias, extending coin-cell battery life beyond 2 years in standby mode. | Use Scenario: Regulating 3.3 V supply rail for ARM Cortex-M0+ microcontroller in mains-powered smoke alarm with backup battery. IC Role / Device Role / Timing Role: Standby-mode shunt regulator holding rail within specification when LDO drops out during brown-out. Use Value: Enables fail-safe operation with AEC−Q101 qualification and −55°C to +150°C junction range, meeting UL 217 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ3V6T1G | No SZ prefix; not AEC−Q101 qualified; same electrical specs and SOD−123 package. | Intended for industrial/commercial use only; lacks automotive change control documentation. | Select when AEC−Q101 compliance is unnecessary and cost sensitivity is higher. |
| BZX84-C3V6 | Higher ZZT (100 Ω max), wider VZ tolerance (±6%), SOT−23 package (larger footprint). | Less stable regulation under varying load; requires different PCB land pattern. | Choose only if legacy SOT−23 layout exists and tighter voltage stability is not required. |
Compared with MMSZ3V6T1G and BZX84-C3V6, SZMMSZ3V6T1G provides automotive-grade reliability with identical regulation performance and smallest board area - making it optimal for new designs targeting functional safety and miniaturization.
Availability
SZMMSZ3V6T1G is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive cabin control modules, and portable medical pulse oximeters requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SZMMSZ3V6T1G 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
SZMMSZ3V6T1G belongs to the AEC−Q101-qualified SZMMSZxxxT1G Zener regulator family, engineered for reliable voltage reference and transient suppression in harsh-environment automotive and industrial control systems.
FAQ
What is the Zener voltage tolerance of SZMMSZ3V6T1G?
The SZMMSZ3V6T1G has a nominal Zener voltage of 3.6 V with a tolerance of ±5%, resulting in a guaranteed range of 3.42 V to 3.78 V at 5 mA test current (IZT). This tolerance is standardized across the MMSZ/SZMMSZ series and verified per JEDEC test methods in the official onsemi datasheet Rev. 13.
Is SZMMSZ3V6T1G suitable for automotive applications?
Yes, SZMMSZ3V6T1G is AEC−Q101 qualified and PPAP capable, with explicit design validation for automotive environments including temperature cycling, humidity testing, and mechanical shock. The "SZ" prefix denotes automotive-specific site and process controls, distinguishing it from commercial-grade MMSZ3V6T1G variants.
What is the maximum reverse leakage current for SZMMSZ3V6T1G at 1 V bias?
The maximum reverse leakage current (IR) for SZMMSZ3V6T1G is 5 µA when biased at VR = 1 V, measured at TA = 25°C. This value is confirmed in Table 1 of the onsemi datasheet and critical for ultra-low-power applications such as battery-backed real-time clocks or sensor wake-up circuits.
Does SZMMSZ3V6T1G have a Pb−free package?
Yes, SZMMSZ3V6T1G uses a Pb−free SOD−123 package (Case 425, Style 1), compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part number explicitly indicates Pb−free construction, and the device meets onsemi's soldering and mounting specifications for lead-free reflow profiles.
What is the thermal resistance junction-to-ambient for SZMMSZ3V6T1G?
The thermal resistance junction-to-ambient (RJA) for SZMMSZ3V6T1G is 340°C/W, measured on FR−5 board using infrared scanning per Note 2 in the Maximum Ratings table. This value assumes standard 3.5 × 1.5 inch board size and guides thermal layout decisions for sustained 500 mW operation.
SZMMSZ3V6T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
SZMMSZ3V6T1G FAQ
1.How can I place an order for SZMMSZ3V6T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMSZ3V6T1G 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 SZMMSZ3V6T1G reliable?
The price and inventory of SZMMSZ3V6T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMSZ3V6T1G is usually 5 days.
3.What payment methods are accepted for SZMMSZ3V6T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMSZ3V6T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMSZ3V6T1G?
SZMMSZ3V6T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMSZ3V6T1G 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 SZMMSZ3V6T1G?
For technical support, including SZMMSZ3V6T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMSZ3V6T1G requirements.
6.How does Aetrix verify that SZMMSZ3V6T1G is sourced from the original manufacturer or authorized distributors?
All SZMMSZ3V6T1G 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 SZMMSZ3V6T1G meets industry standards.
7.What is the process for return or replacement of SZMMSZ3V6T1G?
All SZMMSZ3V6T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMSZ3V6T1G, 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 SZMMSZ3V6T1G part is unused and in its original packaging.
Return procedure for SZMMSZ3V6T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMMSZ3V6T1G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
