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onsemi 1PMT5927BT1G
- Part No.:
- 1PMT5927BT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5927BT1G.pdf
- Description:
- DIODE ZENER 12V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:17,274
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Product details
Overview
1PMT5927BT1G from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE (DO-216AA) package, with a nominal Zener voltage of 12 V (11.4–12.6 V), 31.2 mA test current (IZT), 9.1 Ω dynamic impedance (ZZT), and 0.25 µA reverse leakage at 9.1 V. It delivers stable voltage regulation in space-constrained portable power rails and ESD-sensitive signal lines.
For engineers reviewing the 1PMT5927BT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 12 V regulation tolerance, 3.2 W thermal-rated dissipation at cathode tab (75 °C), low-profile 1.1 mm height, Class 3 HBM ESD rating (>16 kV), and DO-216AA footprint compatibility.
Technical Context
This Zener diode operates as a precision shunt voltage regulator, maintaining a stable 12 V reference under varying load conditions via controlled reverse breakdown. Its thermal design relies on direct cathode tab conduction to PCB copper for heat sinking, achieving 23 °C/W junction-to-cathode resistance.
The device exhibits low dynamic impedance (9.1 Ω at 31.2 mA) and tight voltage tolerance (±5% around 12 V), enabling accurate clamping in overvoltage protection circuits and low-noise biasing in analog front-ends where stability at moderate current levels is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.4–12.6 V at IZT = 31.2 mA - defines regulated output range for 12 V rail stabilization |
| Power Dissipation | 3.2 W at cathode tab = 75 °C - enables high-power density regulation without external heatsink |
| Zener Impedance (ZZT) | 9.1 Ω at IZT - ensures minimal output voltage variation under dynamic load changes |
| Reverse Leakage (IR) | 0.25 µA at VR = 9.1 V - guarantees low standby current in battery-powered systems |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling during automated assembly and end-use surge events |
| Package | POWERMITE (DO-216AA), 1.90 × 1.96 × 1.00 mm - 50% smaller footprint than SMA with same thermal performance |
| Thermal Resistance (RJcathode) | 23 °C/W - allows efficient heat transfer from junction to PCB via cathode tab |
Pinout & Package
1PMT5927BT1G uses the POWERMITE (DO-216AA) surface-mount package with full metallic bottom and integral heat sink tabs. Cathode is marked by a polarity band and designated Pin 1; Anode is Pin 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Regulated output node / Heat sink interface | Connected to system ground or reference plane; primary thermal path to PCB copper |
| 2 (Anode) | Input / Unregulated supply node | Receives input voltage above 12 V; reverse-biased operation establishes Zener clamp |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile thermal package | 1.1 mm max height with full metallic bottom - eliminates flux entrapment and improves solder joint reliability |
| High ESD robustness | Class 3 HBM (>16 kV) - reduces field failure risk in handheld and USB-connected devices |
| Small footprint area | 8.45 mm² - saves board space in multi-rail PMIC layouts and compact IoT modules |
| Pb-free & RoHS compliant | Meets global environmental regulations without compromising Zener voltage stability or thermal performance |
Applications
| USB Port Overvoltage Protection | Portable Device Battery Monitoring |
|---|---|
Use Scenario: Clamps transient surges on USB VBUS lines during hot-plug or adapter switching. IC Role / Device Role / Timing Role: Shunt regulator protecting downstream USB controller ICs from >20 V transients. Use Value: 12 V Zener threshold aligns with USB 2.0/3.0 overvoltage limits; 3.2 W rating absorbs 100 ns, 1 A surge per IEC 61000-4-5 Level 3. | Use Scenario: Provides stable reference for ADC-based Li-ion cell voltage sensing in wearables. IC Role / Device Role / Timing Role: Precision voltage reference source for 12-bit battery fuel gauge circuitry. Use Value: ±5% VZ tolerance and 9.1 Ω ZZT ensure <10 mV error across 10–100 µA load variations typical in ultra-low-power monitoring. |
| Industrial Sensor Signal Conditioning | Smartphone Camera Module Biasing |
Use Scenario: Regulates excitation voltage for 4–20 mA loop-powered pressure sensors. IC Role / Device Role / Timing Role: Stable 12 V shunt reference for op-amp biasing and current-loop driver stages. Use Value: Low 0.25 µA IR minimizes quiescent current draw; DO-216AA package withstands reflow and conformal coating processes. | Use Scenario: Supplies clean bias to CMOS image sensor analog front-end (AFE) blocks. IC Role / Device Role / Timing Role: Low-noise voltage clamp preventing AFE saturation during flash LED activation. Use Value: 1.1 mm profile fits under camera module flex connectors; Class 3 ESD protects sensitive pixel arrays from handling discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5242BT1G | Same 12 V nominal Zener, but 500 mW rating (vs. 3.2 W); SOD-123 package; higher ZZT (30 Ω) | Suitable only for low-power signal-level clamping, not power rail regulation | Select when board space is tighter and power dissipation ≤0.5 W is sufficient |
| 1N4742A | 12 V Zener, 1 W rating, DO-41 through-hole; no ESD rating; larger 5.2 mm height | Requires manual assembly; unsuitable for automated SMT lines or thin-profile designs | Select only for legacy through-hole prototyping or non-automated repair scenarios |
Compared with MMSZ5242BT1G and 1N4742A, the 1PMT5927BT1G offers 6.4× higher power handling than the SOD-123 variant and enables fully automated, low-profile SMT integration-critical for modern portable electronics where thermal headroom and board real estate are constrained.
Availability
1PMT5927BT1G is available at Aetrix Electronics and suitable for USB power protection, battery fuel gauging, industrial sensor excitation, and smartphone camera AFE biasing requiring stable component supply and consistent Zener voltage performance across production lots.
Supply support for 1PMT5927BT1G 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1PMT5927BT1G belongs to the 1PMT5920B Series of high-power-density Zener diodes engineered specifically for miniaturized, thermally demanding applications such as cellular handsets, portable medical devices, and industrial IoT edge nodes.
FAQ
What is the maximum continuous power dissipation for 1PMT5927BT1G?
The 1PMT5927BT1G has a maximum DC power dissipation of 3.2 W when the cathode tab is maintained at 75 °C. This rating assumes proper PCB copper area per onsemi's recommended pad layout (FR-4 board). Derating begins above 25 °C ambient at 4.0 mW/°C, and thermal resistance from junction to cathode is 23 °C/W.
How is the polarity marked on 1PMT5927BT1G?
1PMT5927BT1G uses a cathode polarity band to identify Pin 1 (Cathode); Pin 2 is the Anode. The marking appears as a distinct band near one end of the POWERMITE package body. Per JEDEC DO-216AA standard, the cathode is also oriented toward sprocket holes in the 12 mm tape-and-reel packaging.
Does 1PMT5927BT1G meet RoHS and lead-free requirements?
Yes, 1PMT5927BT1G is Pb-free and RoHS compliant, as confirmed by onsemi's packaging designation "T1G" and explicit statement in the datasheet. The device uses lead-free terminations and conforms to EU Directive 2011/65/EU and related amendments without exemptions.
What is the Zener impedance of 1PMT5927BT1G at its test current?
The 1PMT5927BT1G has a maximum Zener impedance (ZZT) of 9.1 Ω measured at IZT = 31.2 mA and 60 Hz AC signal superimposed on DC bias. This low dynamic impedance ensures minimal voltage deviation during load transients, supporting stable regulation in precision analog circuits.
Can 1PMT5927BT1G be used in place of a 1N4742A?
No - while both regulate at ~12 V, the 1PMT5927BT1G is a surface-mount, 3.2 W, DO-216AA device with Class 3 ESD rating, whereas the 1N4742A is a through-hole, 1 W, DO-41 part with no specified ESD rating. They differ in package, thermal capability, mounting method, and reliability profile; direct substitution requires PCB redesign and thermal validation.
1PMT5927BT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 6.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Powermite
1PMT5927BT1G FAQ
1.How can I place an order for 1PMT5927BT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5927BT1G 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 1PMT5927BT1G reliable?
The price and inventory of 1PMT5927BT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5927BT1G is usually 5 days.
3.What payment methods are accepted for 1PMT5927BT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5927BT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5927BT1G?
1PMT5927BT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5927BT1G 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 1PMT5927BT1G?
For technical support, including 1PMT5927BT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5927BT1G requirements.
6.How does Aetrix verify that 1PMT5927BT1G is sourced from the original manufacturer or authorized distributors?
All 1PMT5927BT1G 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 1PMT5927BT1G meets industry standards.
7.What is the process for return or replacement of 1PMT5927BT1G?
All 1PMT5927BT1G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5927BT1G, 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 1PMT5927BT1G part is unused and in its original packaging.
Return procedure for 1PMT5927BT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5927BT1G Tags
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