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Microchip Technology 1PMT5941BE3/TR13
- Part No.:
- 1PMT5941BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5941BE3/TR13.pdf
- Description:
- DIODE ZENER 47V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,984
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Product details
Overview
1PMT5941BE3/TR13 from Microsemi is a 47 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 67 Ω dynamic impedance at 8.0 mA test current and <1 µA reverse leakage at 35.8 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial power supplies.
For engineers reviewing the 1PMT5941BE3/TR13 datasheet, 1PMT5941BE3/TR13 pinout, 1PMT5941BE3/TR13 application, or 1PMT5941BE3/TR13 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance (0.25 Ω at IZK), and compatibility with automated SMT placement equipment.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range (IZT = 8.0 mA). Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and mechanical stability during reflow soldering.
The device exhibits low reverse leakage (<1 µA at VR = 35.8 V), a knee impedance of 0.25 Ω at IZK = 0.25 mA, and a thermal resistance of 30°C/W from junction to TAB 1 - enabling reliable operation up to +150°C junction temperature under defined power derating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 47 V ±5% at IZT = 8.0 mA - defines stable clamping/reference point for 48 V nominal systems |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - supports high-energy transient suppression without external heatsink |
| Dynamic Impedance (ZZT) | 67 Ω at IZT = 8.0 mA - indicates moderate regulation stiffness under small-signal AC perturbations |
| Knee Impedance (ZZK) | 0.25 Ω at IZK = 0.25 mA - ensures usable regulation even near breakdown threshold |
| Reverse Leakage (IR) | <1 µA at VR = 35.8 V - minimizes standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - enables direct thermal path to PCB copper pour or metal chassis |
| ESD Rating | >16 kV per Human Body Model - provides robust handling margin in manual and automated assembly |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1; DO-216 outline; weight ≈ 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be soldered to thermal pad for rated power handling |
| Lead 2 | Anode | Standard anode connection; mounted opposite TAB 1; no thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability and process yield |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper or chassis |
| ESD rating >16 kV HBM | Reduces risk of field failure due to handling-induced damage in manufacturing and field service |
| Compatible with automatic insertion | Designed for pick-and-place compatibility per EIA-481 tape-and-reel standard (TR13 = 13-inch reel, 12,000 pcs) |
Applications
| Industrial Power Supply Regulation | Automotive Body Control Module Clamping |
|---|---|
Use Scenario: Stabilizing 48 V intermediate bus in programmable logic controller (PLC) power stages. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference and overvoltage clamp for LDO input protection. Use Value: Maintains 47 V regulation tolerance within ±5% while dissipating transients up to 3.0 W without derating below 60°C TAB temperature. | Use Scenario: Protecting microcontroller I/O pins from load-dump spikes in 12 V automotive BCMs upgraded to 48 V architecture. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between supply rail and ground, triggered above 47 V. Use Value: Limits spike amplitude to safe levels using low knee impedance (0.25 Ω) and withstands >16 kV ESD events common in service environments. |
| Telecom DC-DC Converter Reference | Test Equipment Voltage Calibration |
Use Scenario: Providing stable reference for feedback loop in isolated 48 V telecom rectifier modules. IC Role / Device Role / Timing Role: Precision Zener reference in optocoupler feedback network of flyback converter. Use Value: Delivers 47 V ±5% accuracy at 8.0 mA with 67 Ω dynamic impedance, minimizing output voltage drift under line/load variation. | Use Scenario: Calibrating benchtop multimeter front-end voltage dividers requiring traceable 47 V reference. IC Role / Device Role / Timing Role: Primary shunt reference source in metrology-grade calibration circuit. Use Value: Enables repeatable 47 V reference generation with <1 µA leakage at 35.8 V, ensuring minimal loading error in high-Z divider networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF47A (ON Semiconductor) | Same 47 V nominal, ±5%, but rated 1.0 W; DO-219AB package; thermal resistance 110°C/W | Limited to lower-power clamping; unsuitable for sustained 3.0 W dissipation | Select 1PMT5941BE3/TR13 when >1.5 W continuous power handling or sub-30°C/W thermal resistance is required |
| BZX84-C47 (Diodes Inc.) | 47 V ±5%, SOT-23 package; 300 mW rating; ZZT = 90 Ω at 5 mA | Not suitable for high-energy transients; lacks metallic thermal tab | Choose 1PMT5941BE3/TR13 where board-level thermal management and >2.5 W surge capability are critical |
Compared with SMF47A and BZX84-C47, the 1PMT5941BE3/TR13 delivers 3× higher power rating, 3.6× lower thermal resistance, and integrated mechanical heat sinking - making it uniquely suited for industrial and automotive applications demanding robust, self-contained voltage regulation without auxiliary cooling.
Availability
1PMT5941BE3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom DC-DC converters, and test equipment calibration requiring stable component supply and long-lifecycle support.
Supply support for 1PMT5941BE3/TR13 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 for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed specifically for surface-mount applications requiring high power density, superior thermal performance, and automated assembly compatibility in harsh-environment electronics.
FAQ
What is the zener voltage tolerance for 1PMT5941BE3/TR13?
The 1PMT5941BE3/TR13 has a nominal zener voltage of 47 V with a standard tolerance of ±5%, measured at IZT = 8.0 mA and TAB temperature = 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, respectively, but the E3/TR13 variant specifies ±5%. This tolerance ensures predictable clamping behavior in 48 V system designs.
How is thermal management handled in the 1PMT5941BE3/TR13 package?
The 1PMT5941BE3/TR13 uses the Powermite® package with a full metallic bottom and integral locking tab that functions as both mechanical anchor and primary heat sink. Its junction-to-TAB thermal resistance is 30°C/W, allowing direct conduction to PCB copper pours or metal chassis. Proper soldering of TAB 1 to a thermally enhanced pad is required to achieve the rated 3.0 W dissipation at 60°C TAB temperature.
What does the 'TR13' suffix indicate in 1PMT5941BE3/TR13?
The 'TR13' suffix in 1PMT5941BE3/TR13 denotes tape-and-reel packaging per EIA-481 standard on a 13-inch reel containing 12,000 units. This format is optimized for high-volume automated SMT placement. The 'E3' portion indicates compliance with JEDEC Level 3 moisture sensitivity, requiring bake-out only if exposed to ambient conditions beyond floor life limits.
Can 1PMT5941BE3/TR13 be used in automotive applications?
Yes, the 1PMT5941BE3/TR13 is qualified for automotive use with operating junction temperature range of –55°C to +150°C and >16 kV HBM ESD rating. Its robust Powermite® package resists mechanical stress during thermal cycling, and its 47 V clamping level aligns with 48 V mild-hybrid vehicle architectures. It is commonly deployed in BCMs and ADAS power domains where transient immunity and thermal resilience are critical.
What is the maximum reverse leakage current for 1PMT5941BE3/TR13?
The maximum reverse leakage current for 1PMT5941BE3/TR13 is <1 µA at VR = 35.8 V and TL = 30°C. This low leakage ensures minimal parasitic current draw in high-impedance reference or bias networks, preserving accuracy in precision analog circuits and extending battery life in always-on monitoring subsystems.
1PMT5941BE3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 67 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 35.8 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
1PMT5941BE3/TR13 FAQ
1.How can I place an order for 1PMT5941BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5941BE3/TR13 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 1PMT5941BE3/TR13 reliable?
The price and inventory of 1PMT5941BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5941BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5941BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5941BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5941BE3/TR13?
1PMT5941BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5941BE3/TR13 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 1PMT5941BE3/TR13?
For technical support, including 1PMT5941BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5941BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5941BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5941BE3/TR13 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 1PMT5941BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5941BE3/TR13?
All 1PMT5941BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5941BE3/TR13, 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 1PMT5941BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5941BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5941BE3/TR13 Tags
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MMBZ5240B-7-F
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