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onsemi 1PMT5923BT1G
- Part No.:
- 1PMT5923BT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5923BT1G.pdf
- Description:
- DIODE ZENER 8.2V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:2,247
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Product details
Overview
1PMT5923BT1G from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE® (DO-216AA) package, rated for 8.2 V nominal Zener voltage at 45.7 mA test current, with 6.5 Ω maximum dynamic impedance and 5.0 µA reverse leakage at 6.5 V. It delivers low-profile thermal performance (1.1 mm height, 23 °C/W junction-to-cathode thermal resistance) and is used for voltage regulation and transient suppression in portable power rails.
For engineers reviewing the 1PMT5923BT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 8.2 V ±3% tolerance, 3.2 W dissipation at cathode temperature of 75°C, Pb-free compliance, ESD rating >16 kV HBM, and compatibility with high-density PCB layouts requiring minimal footprint (8.45 mm²).
Technical Context
This Zener regulator operates in reverse-biased breakdown mode with tightly controlled voltage reference behavior across −55°C to +150°C. Its thermal design relies on direct cathode tab conduction (RJcathode = 23 °C/W), enabling stable regulation under pulsed or continuous DC loads up to 45.7 mA.
The device exhibits low dynamic impedance (6.5 Ω @ IZT) and low capacitance (<100 pF @ 0 V), making it suitable for noise-sensitive analog supply clamping and low-jitter reference stabilization - not for high-frequency signal routing or switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal (7.79–8.61 V range); provides stable reference for 3.3 V/5 V rail supervision and overvoltage clamp thresholds. |
| Power Dissipation | 3.2 W at Ttab = 75°C; requires thermal pad connection to PCB copper for full rating - not derated for ambient alone. |
| Zener Impedance (ZZT) | 6.5 Ω max @ 45.7 mA; ensures minimal output voltage shift under load transients in feedback-sensing circuits. |
| Reverse Leakage (IR) | 5.0 µA max @ 6.5 V; enables low-quiescent-current bias networks without significant error contribution. |
| ESD Rating | Class 3 (>16 kV HBM); protects downstream circuitry during handling and board-level ESD events without external TVS. |
| Package | POWERMITE® (DO-216AA); 1.1 mm max height, 8.45 mm² footprint, JEDEC-registered, Pb-free compliant. |
Pinout & Package
POWERMITE® (DO-216AA) is a 2-terminal surface-mount plastic package with integral heat sink tabs and full metallic bottom for enhanced thermal transfer. Cathode is marked by polarity band and oriented toward sprocket holes in tape.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage node; primary thermal path to PCB via exposed metal tab - must be soldered to thermal pad. |
| 2 | Anode | Connected to ground or lower-potential rail; secondary thermal path (RJanode = 35 °C/W) - less effective than cathode path. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile thermal package | 1.1 mm max height with 23 °C/W RJcathode - enables ultra-thin designs while maintaining 3.2 W rating without heatsink. |
| High ESD robustness | Class 3 (>16 kV HBM) - eliminates need for discrete ESD protection in handheld and wearables interfaces. |
| Small footprint | 8.45 mm² area - saves >50% board space vs. SMA while delivering same thermal performance. |
| Pb-free and RoHS-compliant | T1G suffix denotes lead-free termination - meets IPC-J-STD-020 moisture sensitivity level 1 (MSL1) requirements. |
Applications
| Smartphone Power Management | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Regulating bias voltage for RF front-end LNA and PMIC reference inputs in LTE/5G handsets. IC Role / Device Role / Timing Role: Precision voltage clamp and reference stabilizer for analog supply domains. Use Value: 8.2 V Zener point matches common LNA VCC headroom requirements; low 6.5 Ω ZZT minimizes ripple-induced gain variation. |
Use Scenario: Providing stable excitation voltage to bridge-based pressure/strain sensors in factory automation modules. IC Role / Device Role / Timing Role: Low-drift voltage reference source for ratiometric ADC biasing. Use Value: 5.0 µA leakage at 6.5 V prevents loading error in high-impedance sensor bridges; −55°C to +150°C operation supports extended industrial temp range. |
| USB-C PD Adapter Feedback Loop | Automotive Body Control Module (BCM) |
|
Use Scenario: Secondary-side voltage sensing and error amplification in isolated flyback converters for USB-C power delivery. IC Role / Device Role / Timing Role: Zener-based shunt reference for TL431-like optocoupler feedback networks. Use Value: Tight 7.79–8.61 V tolerance ensures accurate output voltage setpoint; 3.2 W rating accommodates transient overloads during startup. |
Use Scenario: Overvoltage protection and supply rail clamping for LIN bus transceivers and microcontroller I/O in BCM subassemblies. IC Role / Device Role / Timing Role: Transient voltage suppressor and rail clamp for 12 V battery-supplied logic domains. Use Value: >16 kV HBM ESD rating withstands automotive assembly line discharge events; DO-216AA package resists mechanical shock in vibration-prone locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A-T | 10% tolerance (5.8–6.6 V), 1 W rating, DO-41 through-hole package, no ESD rating specified. | Limited to low-power, non-portable designs; unsuitable for space-constrained or ESD-critical environments. | Select only when legacy through-hole assembly is required and thermal/power demands are ≤1 W. |
| MMSZ5231B-TP | 5.1 V nominal, 500 mW rating, SOD-123 package, 300 mW derated at 75°C, no documented ESD rating. | Lower voltage and power capacity; insufficient for 8.2 V reference or >1 W clamping needs. | Use only for cost-sensitive, low-voltage (<6 V), low-power (<0.5 W) applications where ESD immunity is not required. |
Compared with 1N4734A-T and MMSZ5231B-TP, the 1PMT5923BT1G offers higher precision (±3% vs. ±5–10%), triple the power rating (3.2 W vs. ≤1 W), industry-leading ESD robustness, and surface-mount scalability - making it the preferred choice for modern compact, high-reliability power regulation.
Availability
1PMT5923BT1G is available at Aetrix Electronics and suitable for smartphone power management, industrial sensor signal conditioning, USB-C PD adapter feedback loops, and automotive body control modules requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for 1PMT5923BT1G 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 focused on energy-efficient innovation for automotive, industrial, cloud, and IoT applications.
The 1PMT5923BT1G belongs to the 1PMT5920B Series Zener diode family, engineered specifically for high-density, thermally demanding surface-mount voltage regulation in portable and ruggedized electronics.
FAQ
What is the Zener voltage tolerance of the 1PMT5923BT1G?
The 1PMT5923BT1G has a nominal Zener voltage of 8.2 V with a guaranteed range of 7.79 V to 8.61 V at IZT = 45.7 mA and TL = 25°C. This ±3% tolerance is tighter than standard Zener diodes and supports precise voltage reference applications without additional trimming.
Can the 1PMT5923BT1G be used in place of a 1N4734A?
No - the 1PMT5923BT1G is not a drop-in replacement for the 1N4734A. It has different Zener voltage (8.2 V vs. 6.2 V), higher power rating (3.2 W vs. 1 W), and a surface-mount POWERMITE® package versus DO-41 through-hole. Direct substitution would require PCB redesign and electrical validation.
What is the maximum allowable cathode temperature for full 3.2 W operation of the 1PMT5923BT1G?
The 1PMT5923BT1G delivers its full 3.2 W DC power dissipation rating only when the cathode tab temperature (Ttab) is maintained at 75°C. Operation above this temperature requires linear derating per the datasheet's steady-state derating curve, with zero power allowed at 150°C junction temperature.
Does the 1PMT5923BT1G have a specified junction-to-ambient thermal resistance?
Yes - the 1PMT5923BT1G has RJA = 248 °C/W when mounted on FR-4 PCB with recommended minimum pad size. However, this value assumes minimal copper area; actual thermal performance improves significantly with larger thermal pads connected to internal ground planes.
Is the 1PMT5923BT1G suitable for automotive under-hood applications?
The 1PMT5923BT1G supports an operating temperature range of −55°C to +150°C and is qualified for industrial use, but it is not AEC-Q200 qualified. For under-hood automotive applications requiring automotive-grade reliability, consult onsemi's AEC-Q200-certified Zener portfolio - the 1PMT5923BT1G is appropriate for non-safety-critical cabin or body electronics only.
1PMT5923BT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 6.5 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
1PMT5923BT1G FAQ
1.How can I place an order for 1PMT5923BT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5923BT1G 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 1PMT5923BT1G reliable?
The price and inventory of 1PMT5923BT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5923BT1G is usually 5 days.
3.What payment methods are accepted for 1PMT5923BT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5923BT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5923BT1G?
1PMT5923BT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5923BT1G 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 1PMT5923BT1G?
For technical support, including 1PMT5923BT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5923BT1G requirements.
6.How does Aetrix verify that 1PMT5923BT1G is sourced from the original manufacturer or authorized distributors?
All 1PMT5923BT1G 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 1PMT5923BT1G meets industry standards.
7.What is the process for return or replacement of 1PMT5923BT1G?
All 1PMT5923BT1G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5923BT1G, 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 1PMT5923BT1G part is unused and in its original packaging.
Return procedure for 1PMT5923BT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5923BT1G Tags
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