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Microchip Technology 1PMT5926/TR7
- Part No.:
- 1PMT5926/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5926/TR7.pdf
- Description:
- DIODE ZENER 11V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,675
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Product details
Overview
1PMT5926B from Microsemi is a 11 V, 3.0 W surface-mount Zener diode in the Powermite® package, featuring 5.5 Ω dynamic impedance at 34.1 mA test current, 8.4 mA maximum zener current, and thermal resistance of 30°C/W junction-to-tab. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD protection circuits.
For engineers reviewing the 1PMT5926B datasheet, 1PMT5926B pinout, 1PMT5926B application, or 1PMT5926B equivalent, key selection criteria include its 11 V nominal zener voltage, ±5% tolerance (standard), 3.0 W power rating with tab heatsinking, ESD rating >16 kV HBM, and DO-216 mechanical outline compatibility.
Technical Context
This Zener diode operates with cathode designated by TAB 1 and supports mounting in any orientation due to its molded Powermite® package. Its full metallic bottom prevents solder flux entrapment, and integral locking tabs enhance thermal conduction to the PCB.
Rated for junction and storage temperatures from –55°C to +150°C, it delivers stable regulation under transient load conditions with low reverse leakage (≤1 µA at 8.4 V) and tight knee characteristics (IZK = 0.25 mA, ZZK = 550 Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11 V nominal at 34.1 mA; enables precise 11 V rail clamping or reference generation |
| Power Dissipation | 3.0 W with TAB 1 at 60°C; requires thermal pad design for sustained operation |
| Dynamic Impedance (ZZT) | 5.5 Ω at IZT; ensures minimal output voltage variation under load changes |
| Reverse Leakage (IR) | ≤1 µA at VR = 8.4 V; maintains low standby power in sensing or bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1; mandates direct copper pour connection to tab for thermal management |
| ESD Rating | >16 kV per Human Body Model; suitable for front-end protection without external TVS staging |
| Tolerance | ±5% standard (suffix B); 2% (C) and 1% (D) available for high-accuracy references |
Pinout & Package
Package: Powermite® (DO-216), surface-mount, molded plastic with full metallic bottom and integral heat-sink locking tabs. Cathode is designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad |
| Lead 2 | Anode | Standard anode terminal; routed to ground or return path in clamp configuration |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and eliminates through-hole assembly steps |
| Integral heat-sink locking tabs | Improves thermal transfer to PCB without external heatsinks or thermal vias |
| Full metallic bottom | Prevents solder flux entrapment during reflow, reducing post-assembly cleaning needs |
| ESD rating >16 kV HBM | Provides robust input-stage protection in industrial I/O and sensor interfaces |
| Low knee impedance (550 Ω at 0.25 mA) | Ensures stable regulation even at very low bias currents for battery-powered systems |
Applications
| Power Supply Overvoltage Clamp | Industrial Sensor Reference |
|---|---|
Use Scenario: Clamps transient surges on 12 V DC input rails in PLC power modules. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator and crowbar element. Use Value: Absorbs up to 3.0 W surge energy while holding rail ≤11.6 V (11 V × 1.05), protecting downstream DC-DC converters. | Use Scenario: Provides stable 11 V reference for 4–20 mA transmitter analog front-ends. IC Role / Device Role / Timing Role: Precision voltage reference source with low temperature drift. Use Value: Delivers <1% output variation across –40°C to +85°C ambient due to tight 5% tolerance and low ZZT. |
| ESD Protection for RS-485 Transceivers | Battery Voltage Monitor in Portable Medical Devices |
Use Scenario: Protects differential bus lines against contact ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Primary ESD clamp on A/B lines before transceiver input stage. Use Value: Withstands >16 kV HBM and limits clamping voltage to ≤13.2 V (11 V × 1.2), within transceiver absolute max ratings. | Use Scenario: Monitors lithium-ion cell stack voltage in portable infusion pumps. IC Role / Device Role / Timing Role: Low-current Zener reference for ADC voltage scaling. Use Value: Draws only 0.25 mA knee current (IZK), extending battery life while maintaining 11 V accuracy for 12-bit ADC full-scale calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5343B | Same 11 V nominal, 5 W rating, DO-201AD package; higher thermal resistance (50°C/W) | Requires larger PCB thermal relief; less suitable for dense SMT layouts | Select when higher power headroom is needed and board space allows axial/through-hole mounting |
| BZX84-C11 | 11 V, 300 mW, SOT-23; no integral heatsink; 10× lower power rating | Limited to signal-level clamping or biasing, not power rail protection | Select only for low-power signal conditioning where 3.0 W capability is unnecessary |
Compared with 1N5343B and BZX84-C11, the 1PMT5926B uniquely combines 3.0 W dissipation, SMT compatibility, and 30°C/W thermal resistance in a DO-216 footprint-enabling compact, thermally efficient voltage regulation where power density and automated assembly are critical.
Availability
1PMT5926B is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, RS-485 communication hardware, and portable medical equipment requiring stable component supply and long-term obsolescence planning.
Supply support for 1PMT5926B 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components.
The Powermite® Zener series-including 1PMT5926B-is designed for ruggedized power management in aerospace, defense, and industrial control systems where thermal performance, ESD resilience, and automated manufacturability are essential.
FAQ
What is the nominal zener voltage and tolerance of the 1PMT5926B?
The 1PMT5926B has a nominal zener voltage of 11 V with a standard tolerance of ±5%. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are also available. Voltage is measured at 34.1 mA test current with TAB 1 held at 30°C, per Microsemi's MSC0995 specification.
How is thermal management implemented for the 1PMT5926B?
The 1PMT5926B relies on TAB 1 as its primary thermal path, with a specified junction-to-tab thermal resistance of 30°C/W. Effective cooling requires direct soldering of TAB 1 to a copper thermal pad on the PCB, optionally augmented with thermal vias. Its Powermite® package's integral locking tabs enhance mechanical and thermal coupling to the board.
Does the 1PMT5926B meet industry ESD standards?
Yes, the 1PMT5926B is rated for >16 kV per the Human Body Model (HBM), exceeding IEC 61000-4-2 Level 4 requirements for contact discharge. This makes it suitable for use as a primary ESD clamp on unprotected I/O lines in industrial and medical equipment without requiring additional staged protection.
What is the maximum reverse leakage current for the 1PMT5926B?
The 1PMT5926B exhibits a maximum reverse leakage current (IR) of 1 µA at a reverse voltage (VR) of 8.4 V, measured at TL = 30°C. This low leakage supports energy-efficient operation in battery-powered monitoring circuits and high-impedance bias networks.
Is the 1PMT5926B compatible with standard SMT reflow processes?
Yes, the 1PMT5926B is qualified for standard lead-free reflow profiles per J-STD-020. Its Powermite® package is supplied in EIA-481 tape-and-reel format (3,000 pieces per 7-inch reel), and its full metallic bottom eliminates solder flux entrapment-reducing post-reflow cleaning requirements and improving first-pass yield.
1PMT5926/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 5.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 8.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5926/TR7 FAQ
1.How can I place an order for 1PMT5926/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5926/TR7 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 1PMT5926/TR7 reliable?
The price and inventory of 1PMT5926/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5926/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5926/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5926/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5926/TR7?
1PMT5926/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5926/TR7 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 1PMT5926/TR7?
For technical support, including 1PMT5926/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5926/TR7 requirements.
6.How does Aetrix verify that 1PMT5926/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5926/TR7 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 1PMT5926/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5926/TR7?
All 1PMT5926/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5926/TR7, 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 1PMT5926/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5926/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5926/TR7 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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