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Microchip Technology 1PMT5926B/TR7
- Part No.:
- 1PMT5926B/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5926B/TR7.pdf
- Description:
- DIODE ZENER 11V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,226
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Product details
Overview
1PMT5926B/TR7 from Microsemi is a 11 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 5.5 Ω dynamic impedance at 34.1 mA test current and 1 µA max reverse leakage at 8.4 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback paths.
For engineers reviewing the 1PMT5926B/TR7 datasheet, 1PMT5926B/TR7 pinout, 1PMT5926B/TR7 application, or 1PMT5926B/TR7 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance (550 Ω at 0.25 mA), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage-regulating diode with cathode designated by TAB 1. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
Electrical behavior is defined at TL = 30°C with Zener voltage measured 20 seconds after applying DC test current; dynamic impedance is derived using 60 Hz RMS AC current equal to 10% of IZT. Thermal resistance is 30°C/W from junction to TAB 1, enabling stable regulation under sustained 3.0 W dissipation when mounted on adequate copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.0 V ±5% at 34.1 mA - defines stable regulation point for feedback or clamping circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient suppression without derating in compact layouts |
| Dynamic Impedance (ZZT) | 5.5 Ω at IZT = 34.1 mA - ensures minimal output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤1 µA at VR = 8.4 V - guarantees low standby power loss in battery-backed or low-power systems |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - enables predictable thermal design when TAB 1 is soldered to thermal pad |
| ESD Rating | >16 kV per Human Body Model - provides robust handling and system-level ESD immunity without external protection |
| Knee Impedance (ZZK) | 550 Ω at IZK = 0.25 mA - maintains regulation integrity even near turn-on threshold |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1; mounting position unrestricted; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to PCB thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for series connection in voltage reference networks |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-214AC |
| Full metallic bottom | Eliminates solder flux entrapment during assembly, improving long-term reliability and void-free solder joints |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| ESD robustness | >16 kV HBM rating reduces need for external ESD protection in input-stage clamping applications |
| Tight voltage tolerance option | Available in ±2% (suffix C) and ±1% (suffix D) for precision reference designs requiring minimal calibration |
Applications
| DC Power Rail Clamping | Feedback Reference in SMPS |
|---|---|
Use Scenario: Protecting 12 V automotive or industrial control inputs against load-dump transients up to 30 V. IC Role / Device Role / Timing Role: Zener clamping diode shunting excess energy to ground when input exceeds 11 V. Use Value: Leverages 3.0 W rating and 30°C/W thermal resistance to absorb 100 ms transients without degradation. | Use Scenario: Providing stable 11 V reference for optocoupler feedback in isolated flyback converters. IC Role / Device Role / Timing Role: Precision voltage reference setting error amplifier trip point in secondary-side regulation. Use Value: ±5% VZ tolerance and low ZZT (5.5 Ω) minimize output voltage drift across line/load/temperature. |
| Low-Power Sensor Biasing | Overvoltage Protection in USB-C PD |
Use Scenario: Biasing analog sensor bridges or op-amp references in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA at 8.4 V) Zener providing stable bias voltage with minimal quiescent drain. Use Value: Enables >10-year battery life in always-on sensing applications due to ultra-low IR. | Use Scenario: Clamping CC line voltage during USB-C Power Delivery negotiation faults. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp protecting PD controller GPIOs from >20 V fault conditions. Use Value: >16 kV HBM rating and DO-216-compatible footprint allow direct integration without layout redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | DO-41 through-hole package; 10 V nominal; 1 W rating; 17 Ω ZZT at 25 mA | Requires manual insertion or wave soldering; unsuitable for high-power or space-constrained SMT designs | Select 1PMT5926B/TR7 for SMT volume production, thermal performance, or >1 W clamping needs |
| BZX84-C11 | SOT-23 package; 11 V nominal; 300 mW rating; 20 Ω ZZT at 5 mA; no metallic thermal tab | Limited to low-energy clamping; lacks integrated heat sinking; higher thermal resistance (~250°C/W) | Select 1PMT5926B/TR7 when 3.0 W dissipation, low ZZT, or ESD-hardened design is required |
Compared with 1N4740A and BZX84-C11, the 1PMT5926B/TR7 delivers 3× the power rating of the SOT-23 part and 3× the thermal performance of the DO-41 part, while maintaining identical 11 V regulation and superior ESD immunity-making it optimal for ruggedized, high-density, or high-reliability SMT applications.
Availability
1PMT5926B/TR7 is available at Aetrix Electronics and suitable for DC power rail clamping, SMPS feedback referencing, low-power sensor biasing, and USB-C PD overvoltage protection requiring stable component supply and consistent tape-and-reel delivery.
Supply support for 1PMT5926B/TR7 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 semiconductor manufacturer specializing in high-reliability analog, mixed-signal, and radiation-tolerant components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed to deliver high-power surface-mount voltage regulation in space-constrained environments where thermal management and assembly reliability are critical.
FAQ
What is the Zener voltage tolerance for 1PMT5926B/TR7?
The 1PMT5926B/TR7 has a standard Zener voltage tolerance of ±5% at 11.0 V, measured at 34.1 mA test current with TAB 1 held at 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request. This tolerance directly impacts regulation accuracy in precision reference circuits, and must be accounted for in feedback loop stability analysis for the 1PMT5926B/TR7.
How is thermal performance specified for 1PMT5926B/TR7?
The 1PMT5926B/TR7 has a junction-to-TAB 1 thermal resistance of 30°C/W, enabling full 3.0 W power dissipation when TAB 1 is soldered to a minimum 100 mm² copper area. Derating is required above 60°C TAB temperature. This specification allows designers to calculate maximum ambient temperature for a given PCB layout, ensuring safe operation of the 1PMT5926B/TR7 in thermally demanding applications.
Is 1PMT5926B/TR7 compatible with standard SMT reflow profiles?
Yes, the 1PMT5926B/TR7 is qualified for standard lead-free reflow profiles per J-STD-020, leveraging its Powermite® molded package and metallic bottom for uniform heating and reliable solder joint formation. Its EIA-481 tape-and-reel packaging (3,000 pcs per 7-inch reel) supports high-speed pick-and-place equipment. No special process adjustments are needed for the 1PMT5926B/TR7 in automated assembly lines.
What does the "TR7" suffix indicate in 1PMT5926B/TR7?
The "TR7" suffix denotes tape-and-reel packaging per EIA-481 standard on a 7-inch reel containing 3,000 units. This packaging format ensures compatibility with automated SMT placement equipment and supports just-in-time manufacturing workflows. The "TR7" designation applies specifically to the 1PMT5926B/TR7 variant and does not affect electrical specifications or reliability ratings.
Can 1PMT5926B/TR7 be used as a replacement for older through-hole Zeners like 1N4740A?
The 1PMT5926B/TR7 provides equivalent 11 V regulation but in a surface-mount Powermite® package with 3.0 W rating versus 1 W for 1N4740A. It is not a drop-in replacement due to different footprint and thermal interface requirements. However, it offers superior thermal performance and ESD immunity, making the 1PMT5926B/TR7 ideal for upgrading legacy designs where board space and reliability are priorities.
1PMT5926B/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:
- ±5%
- 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
1PMT5926B/TR7 FAQ
1.How can I place an order for 1PMT5926B/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5926B/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 1PMT5926B/TR7 reliable?
The price and inventory of 1PMT5926B/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5926B/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5926B/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5926B/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5926B/TR7?
1PMT5926B/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5926B/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 1PMT5926B/TR7?
For technical support, including 1PMT5926B/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5926B/TR7 requirements.
6.How does Aetrix verify that 1PMT5926B/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5926B/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 1PMT5926B/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5926B/TR7?
All 1PMT5926B/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5926B/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 1PMT5926B/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5926B/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5926B/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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Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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