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Microchip Technology 1PMT5925BE3/TR7
- Part No.:
- 1PMT5925BE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5925BE3/TR7.pdf
- Description:
- DIODE ZENER 10V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,228
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Product details
Overview
1PMT5925BE3/TR7 from Microsemi is a 10 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 4.5 mA test current (IZT), 450 Ω dynamic impedance (ZZT), and <5 µA reverse leakage at 8.0 V (VR). It serves as a precision voltage reference or overvoltage clamp in power supply regulation and ESD-protected I/O circuits.
For engineers reviewing the 1PMT5925BE3/TR7 datasheet, 1PMT5925BE3/TR7 pinout, 1PMT5925BE3/TR7 application, or 1PMT5925BE3/TR7 equivalent, key selection criteria include its DO-216 mechanical outline, full metallic bottom for flux-free reflow, integral heat-sink locking tab, 16 kV HBM ESD rating, and thermal resistance of 30°C/W junction-to-TAB1.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage under varying load and temperature conditions. Its Powermite® package integrates a metallic thermal tab (TAB 1) as cathode terminal and primary heat path, enabling 3.0 W dissipation without external heatsinking when mounted on ≥1 sq-in copper area.
The device exhibits low knee impedance (ZZK = 500 Ω) and tight voltage regulation at IZT = 4.5 mA, with reverse leakage IR ≤ 5 µA at VR = 8.0 V. Its 16 kV HBM ESD rating supports robustness in unshielded interface applications without additional transient protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% at IZT = 4.5 mA, TL = 30°C - defines nominal clamping/reference level |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - maximum continuous DC power handled via thermal tab |
| Dynamic Impedance | 450 Ω at IZT = 4.5 mA - small-signal AC resistance affecting regulation accuracy |
| Reverse Leakage | ≤5 µA at VR = 8.0 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - quantifies thermal path efficiency for PCB layout cooling design |
| ESD Rating | >16 kV per HBM - enables direct placement on ESD-prone signal lines without added TVS |
| Knee Current | 0.25 mA - minimum current to enter useful regulation region near VZ |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to ≥1 sq-in copper pour for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; electrically isolated from TAB 1; used for circuit return path |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| ESD robustness | 16 kV HBM rating allows use in unprotected I/O stages without discrete ESD components |
| Surface-mount compatibility | Designed for automated insertion and reflow assembly per EIA-481 tape-and-reel standards |
Applications
| Power Supply Voltage Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stable 10 V reference for ADC biasing and op-amp feedback networks in isolated DC/DC converters. IC Role / Device Role / Timing Role: Precision shunt voltage reference providing low-drift, low-noise reference node. Use Value: 450 Ω dynamic impedance and ±5% tolerance ensure <0.5% total error across 4.5–20 mA operating range. | Use Scenario: Clamp and bias circuit for 4–20 mA current-loop transmitters exposed to field ESD events. IC Role / Device Role / Timing Role: Bidirectional ESD protection + DC bias stabilization at sensor front-end. Use Value: 16 kV HBM rating and ≤5 µA leakage at 8 V enable direct placement without degrading loop accuracy. |
| Automotive Body Control Module I/O Protection | Programmable Logic Controller Input Stage |
Use Scenario: Overvoltage protection for LIN bus or switch input pins in under-hood ECUs operating up to +125°C ambient. IC Role / Device Role / Timing Role: Transient voltage suppressor and DC level shifter for 12 V rail-tied inputs. Use Value: -55°C to +150°C junction temperature range and 30°C/W thermal resistance support reliable operation without derating. | Use Scenario: Input voltage clamping for 24 V digital inputs in industrial PLC backplanes subject to inductive switching noise. IC Role / Device Role / Timing Role: Shunt regulator and surge limiter protecting FPGA or microcontroller GPIOs. Use Value: 3.0 W power handling absorbs repetitive 100 ns/1 A transients without degradation, verified per IEC 61000-4-4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF10A (ON Semiconductor) | 10 V, 1.0 W, SOD-123 package, 200 Ω ZZT, 100 µA IR @ 8 V | Lower power rating and higher leakage limit suitability for low-current bias only | Select when board space is constrained and thermal budget <1 W |
| BZX84-C10 (Diodes Inc.) | 10 V, 300 mW, SOT-23, 20 Ω ZZT, 5 µA IR @ 8 V | Higher dynamic impedance but tighter 5% tolerance; not rated for >0.3 W continuous dissipation | Select for cost-sensitive, low-power reference where PCB copper area is limited |
Compared with SMF10A and BZX84-C10, the 1PMT5925BE3/TR7 delivers 3× higher power handling and superior thermal performance via its metal-tab construction, making it uniquely suitable for industrial and automotive applications requiring sustained 3.0 W clamping without thermal runaway.
Availability
1PMT5925BE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, programmable logic controller input stages, and sensor signal conditioning circuits requiring stable component supply and long-lifecycle availability.
Supply support for 1PMT5925BE3/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 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 family was designed to deliver high-power surface-mount voltage regulation in compact form factors, targeting applications where thermal performance, ESD resilience, and assembly reliability are critical.
FAQ
What is the cathode identification method for 1PMT5925BE3/TR7?
The cathode of the 1PMT5925BE3/TR7 is designated by TAB 1 - the large metallic thermal pad on the bottom of the Powermite® package. This tab must be connected to the most negative potential in the circuit and serves as the primary thermal path. Lead 2 is the anode. Polarity is confirmed in the MSC0995.PDF datasheet mechanical drawing and electrical characteristics table.
Can 1PMT5925BE3/TR7 operate continuously at 3.0 W in standard FR-4 PCB layout?
Yes, the 1PMT5925BE3/TR7 can dissipate 3.0 W continuously when TAB 1 is soldered to ≥1 square inch of 2 oz copper on an FR-4 board with no internal layers, per Microsemi's thermal characterization. Derating is required above 60°C tab temperature; at 100°C tab, max power drops to ~1.8 W. Thermal simulation using the 30°C/W junction-to-TAB1 value is recommended for custom layouts.
What does the "E3/TR7" suffix indicate in 1PMT5925BE3/TR7?
The "E3/TR7" suffix denotes tape-and-reel packaging per EIA-481 standard, with 7-inch reels containing 3,000 units. "E3" specifies the packaging configuration and orientation; "TR7" confirms reel diameter and count. This differs from bulk or ammo-pack variants and ensures compatibility with high-speed pick-and-place equipment.
Is 1PMT5925BE3/TR7 suitable for bidirectional ESD protection?
No - the 1PMT5925BE3/TR7 is a unidirectional Zener diode optimized for reverse-bias clamping only. While its 16 kV HBM rating applies to cathode-to-anode stress, it does not provide symmetrical protection like a TVS diode. For bidirectional ESD suppression, a dedicated bipolar TVS (e.g., SMAJ10A) is required; 1PMT5925BE3/TR7 functions strictly as a shunt regulator in forward-conducting or reverse-breakdown modes.
How does the 1PMT5925BE3/TR7 compare to the 1N4740A in terms of thermal performance?
The 1PMT5925BE3/TR7 offers significantly better thermal performance than the through-hole 1N4740A: its 30°C/W junction-to-TAB1 thermal resistance is ~4× lower than the 1N4740A's typical 120°C/W junction-to-lead value. Combined with the full metallic bottom and locking tab, this enables 1PMT5925BE3/TR7 to sustain 3.0 W in SMT layouts where the 1N4740A would require large external heatsinks to achieve even 1.0 W.
1PMT5925BE3/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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 4.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 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
1PMT5925BE3/TR7 FAQ
1.How can I place an order for 1PMT5925BE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5925BE3/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 1PMT5925BE3/TR7 reliable?
The price and inventory of 1PMT5925BE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5925BE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5925BE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5925BE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5925BE3/TR7?
1PMT5925BE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5925BE3/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 1PMT5925BE3/TR7?
For technical support, including 1PMT5925BE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5925BE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5925BE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5925BE3/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 1PMT5925BE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5925BE3/TR7?
All 1PMT5925BE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5925BE3/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 1PMT5925BE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5925BE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5925BE3/TR7 Tags
-
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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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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