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onsemi 1PMT5924BT1G
- Part No.:
- 1PMT5924BT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5924BT1G.pdf
- Description:
- DIODE ZENER 9.1V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:8,488
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Product details
Overview
1PMT5924BT1G from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE (DO-216AA) package, with a nominal Zener voltage of 9.1 V, 41.2 mA test current, 7.0 Ω dynamic impedance at IZT, 500 mA maximum Zener current, and 0.5 μA reverse leakage at 7.0 V. It serves as a precision voltage reference and overvoltage clamp in portable power rails.
For engineers reviewing the 1PMT5924BT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 9.1 V regulation tolerance (±5%), low 1.1 mm profile, 3.2 W cathode-tab power dissipation at 75°C, Class 3 ESD rating (>16 kV HBM), and JEDEC-registered DO-216AA footprint compatibility.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations and temperature shifts. Its thermal design centers on the cathode tab for heat conduction, achieving 23°C/W junction-to-cathode resistance and enabling 3.2 W dissipation when the tab is held at 75°C.
It exhibits low dynamic impedance (7.0 Ω at 41.2 mA) and tight voltage tolerance (8.64–9.56 V), supporting accurate regulation in feedback loops and protection circuits. The device is Pb-free, RoHS-compliant, and qualified for −55°C to +150°C operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal, 8.64–9.56 V min/max - defines regulated output voltage under 41.2 mA test condition |
| Test Current (IZT) | 41.2 mA - operating point where VZ and ZZT are specified; sets bias requirement for stable regulation |
| Zener Impedance (ZZT) | 7.0 Ω - low AC impedance ensures minimal voltage deviation during transient load changes |
| Max Reverse Leakage (IR) | 0.5 μA @ 7.0 V - enables low-power standby operation without significant quiescent loss |
| Power Dissipation (PD) | 3.2 W @ cathode tab = 75°C - requires thermal pad connection to PCB copper for full rating |
| Package | POWERMITE (DO-216AA), 1.90 × 1.96 × 1.10 mm - 50% smaller footprint than SMA, ideal for space-constrained layouts |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and board-level ESD events without parameter shift |
Pinout & Package
Package: POWERMITE (JEDEC DO-216AA), molded thermosetting plastic case with full metallic bottom, integral heat sink tabs, and cathode polarity band marking. Dimensions: 1.90 mm × 1.96 mm × 1.10 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to heat-sinking tab; must be soldered to thermal pad for rated 3.2 W dissipation |
| 2 | Anode | Standard anode terminal; reverse-biased connection for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile thermal package | 1.1 mm max height enables use in ultra-thin portable devices without compromising thermal performance |
| Full metallic bottom | Eliminates flux entrapment during reflow, improving solder joint reliability and thermal transfer |
| Small footprint area | 8.45 mm² footprint reduces PCB real estate vs. SMA while maintaining equivalent thermal resistance |
| Pb-free and RoHS compliant | Meets global environmental regulations and supports lead-free assembly processes without derating |
| Tape-and-reel packaging | 3000 units per reel with cathode lead oriented toward sprocket holes - optimized for automated pick-and-place |
Applications
| Smartphone Power Management | USB-C Port Protection |
|---|---|
Use Scenario: Regulating auxiliary LDO feedback voltage in battery-powered mobile SoC subsystems. IC Role / Device Role / Timing Role: Precision voltage reference for feedback divider network in DC-DC converters. Use Value: Tight 9.1 V ±5% tolerance and 7.0 Ω ZZT ensure stable output under dynamic load, minimizing ripple-induced system resets. | Use Scenario: Clamping overvoltage transients on USB-C CC and VBUS lines during hot-plug events. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing surge energy before downstream IC damage. Use Value: 3.2 W peak clamping capability and Class 3 ESD rating protect interface ICs without adding series resistance or latency. |
| Industrial Sensor Signal Conditioning | POS Terminal Power Rails |
Use Scenario: Providing stable 9.1 V reference for analog front-end amplifiers in 4–20 mA loop transmitters. IC Role / Device Role / Timing Role: Low-drift voltage reference source for ADC biasing and sensor excitation. Use Value: 0.5 μA leakage at 7.0 V prevents loading of high-impedance sensor bridges, preserving measurement accuracy. | Use Scenario: Overvoltage protection on 12 V input rails in retail point-of-sale terminals exposed to automotive-grade supply noise. IC Role / Device Role / Timing Role: Primary shunt clamp limiting rail voltage to safe levels during load-dump events. Use Value: DO-216AA footprint allows dense placement near connectors, and 23°C/W RJcathode enables direct thermal coupling to chassis ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5239BT1G | Same 9.1 V nominal VZ, but 500 mW rating in SOD-123; no cathode tab for thermal conduction | Limited to low-power signal-level clamping; unsuitable for >0.5 W continuous dissipation | Select when board space allows larger SOD-123 and thermal load is <0.5 W |
| BZX84-C9V1 | 9.1 V nominal VZ, 300 mW in SOT-23; higher ZZT (10 Ω) and no ESD rating specified | Lower power handling and less robust ESD immunity; not recommended for portable consumer interfaces | Select only for cost-sensitive, non-portable industrial control where ESD risk is low |
Compared with MMSZ5239BT1G and BZX84-C9V1, the 1PMT5924BT1G delivers 6.4× higher power capacity, integrated thermal tab for PCB heat spreading, and certified Class 3 ESD protection - making it uniquely suited for compact, high-reliability power-clamp applications where thermal and surge resilience are critical.
Availability
1PMT5924BT1G is available at Aetrix Electronics and suitable for smartphone power management, USB-C port protection, and industrial sensor signal conditioning requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for 1PMT5924BT1G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1PMT5920B Series was designed specifically for space-constrained, thermally demanding Zener regulation and clamping tasks in portable electronics - prioritizing low profile, high power density, and robust ESD immunity in a JEDEC-standardized micro package.
FAQ
What is the Zener voltage tolerance of the 1PMT5924BT1G?
The 1PMT5924BT1G has a Zener voltage range of 8.64 V to 9.56 V at 41.2 mA test current, representing a ±5% tolerance around the nominal 9.1 V rating. This tolerance is guaranteed across the full operating temperature range of −55°C to +150°C and is measured under thermal equilibrium at 25°C ambient. The 1PMT5924BT1G maintains this specification without derating when mounted per onsemi's recommended pad layout.
How is thermal management implemented in the 1PMT5924BT1G?
The 1PMT5924BT1G uses its cathode terminal (Pin 1) as an integral heat-sinking tab, achieving 23°C/W junction-to-cathode thermal resistance. To realize the full 3.2 W power rating, the cathode must be soldered to a minimum copper pad area on the PCB, as specified in onsemi's layout guidelines. The 1PMT5924BT1G's full metallic bottom enhances thermal transfer and eliminates flux entrapment during reflow soldering.
Does the 1PMT5924BT1G meet RoHS and lead-free requirements?
Yes, the 1PMT5924BT1G is Pb-free and fully RoHS compliant, as confirmed by onsemi's material declarations and packaging markings (the "G" suffix denotes Pb-free). It supports lead-free reflow profiles up to 260°C for 10 seconds and is qualified for industrial and consumer applications requiring environmental compliance. The 1PMT5924BT1G meets all substance restrictions defined in Directive 2011/65/EU.
What is the ESD rating of the 1PMT5924BT1G and how is it tested?
The 1PMT5924BT1G carries a Class 3 Human Body Model (HBM) ESD rating exceeding 16 kV, verified per ANSI/ESDA/JEDEC JS-001. This rating applies to both terminals and reflects robustness against handling and board-level electrostatic discharge. The 1PMT5924BT1G achieves this through internal process design and packaging - no external protection components are needed for typical portable device integration.
Can the 1PMT5924BT1G be used as a replacement for SMA-package Zeners?
The 1PMT5924BT1G is not a drop-in replacement for SMA Zeners due to different footprint and thermal path design, though it delivers equivalent thermal performance in 50% less area. Its DO-216AA (POWERMITE) package requires updated land pattern and stencil design. The 1PMT5924BT1G offers identical electrical specs to comparable SMA parts but mandates proper cathode-tab thermal anchoring - unlike SMA's case-body conduction.
1PMT5924BT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 7 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
1PMT5924BT1G FAQ
1.How can I place an order for 1PMT5924BT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5924BT1G 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 1PMT5924BT1G reliable?
The price and inventory of 1PMT5924BT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5924BT1G is usually 5 days.
3.What payment methods are accepted for 1PMT5924BT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5924BT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5924BT1G?
1PMT5924BT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5924BT1G 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 1PMT5924BT1G?
For technical support, including 1PMT5924BT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5924BT1G requirements.
6.How does Aetrix verify that 1PMT5924BT1G is sourced from the original manufacturer or authorized distributors?
All 1PMT5924BT1G 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 1PMT5924BT1G meets industry standards.
7.What is the process for return or replacement of 1PMT5924BT1G?
All 1PMT5924BT1G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5924BT1G, 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 1PMT5924BT1G part is unused and in its original packaging.
Return procedure for 1PMT5924BT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5924BT1G Tags
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