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Microchip Technology 1PMT5953B/TR7
- Part No.:
- 1PMT5953B/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5953B/TR7.pdf
- Description:
- DIODE ZENER 150V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,461
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Product details
Overview
1PMT5953B/TR7 from Microsemi is a 150 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 600 Ω dynamic impedance at 2.5 mA test current and 16.5 mA maximum Zener current. It serves as a precision voltage reference or overvoltage clamp in high-reliability power supply feedback loops.
For engineers reviewing the 1PMT5953B/TR7 datasheet, 1PMT5953B/TR7 pinout, 1PMT5953B/TR7 application, or 1PMT5953B/TR7 equivalent, key selection criteria include its 150 V nominal Zener voltage, 3.0 W thermal capability with metallic-tab heat sinking, low reverse leakage (≤1 µA at 114 V), ESD rating >16 kV HBM, and DO-216 mechanical outline compatibility with automated SMT placement.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction from junction to PCB pad, enabling stable 3.0 W operation without external heatsinking when mounted per recommended pad layout.
The device exhibits low knee impedance (≤600 Ω at IZT = 2.5 mA) and maintains ≤1 µA reverse leakage up to 114 V, supporting accurate voltage clamping in high-impedance sensing nodes. Its ESD robustness (>16 kV HBM) and -55°C to +150°C junction temperature range suit industrial and automotive power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 150 V ±5% at IZT = 2.5 mA - defines precise clamping threshold in overvoltage protection circuits |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables high-energy transient suppression without derating in compact layouts |
| Dynamic Impedance (ZZT) | 600 Ω at IZT = 2.5 mA - ensures minimal voltage shift under load variation in reference applications |
| Reverse Leakage (IR) | ≤1 µA at VR = 114 V - guarantees low quiescent current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal path to copper pour for passive cooling |
| ESD Rating | >16 kV per HBM - provides robust handling during board assembly and field operation |
| Package Outline | DO-216 (Powermite®) - surface-mount footprint compatible with EIA-481 tape-and-reel automation |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount case with full metallic bottom and integral heat-sink locking tab. Cathode is designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal; must be soldered to ≥100 mm² copper area for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode connection; electrically isolated from TAB 1 per DO-216 mechanical specification |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, ensuring void-free thermal interface to PCB |
| Integral heat-sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB copper |
| Automated insertion compatibility | DO-216 outline and tape-and-reel packaging support high-speed pick-and-place at >25,000 UPH |
| Low reverse leakage | ≤1 µA at 76% of VZ enables use in ultra-low-power voltage monitoring circuits |
| Tight voltage tolerance option | ±2% (suffix C) or ±1% (suffix D) available for precision reference designs requiring <0.5% error budget |
Applications
| Industrial Power Supply Feedback | Automotive Load Dump Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision Zener reference establishing stable 150 V threshold for TL431-like control circuitry. Use Value: Maintains ±5% output regulation across line/load/temperature with no active compensation needed. | Use Scenario: Clamping transients on 24 V vehicle battery rails during alternator load dump events. IC Role / Device Role / Timing Role: High-energy shunt element absorbing ISO 7637-2 Pulse 5a energy surges up to 150 V peak. Use Value: Withstands 3.0 W pulses without degradation, eliminating need for parallel TVS arrays. |
| Medical Equipment Overvoltage Detection | Telecom DC-DC Converter Reference |
Use Scenario: Monitoring high-voltage DC bus in defibrillator charging circuits for fault-triggered shutdown. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) voltage threshold detector interfacing directly to microcontroller ADC input. Use Value: Enables reliable 150 V trip point detection with <0.1% measurement error contribution. | Use Scenario: Providing stable reference for current-mode PWM controllers in 48 V telecom rectifiers. IC Role / Device Role / Timing Role: Zener-based feedback divider setting output voltage with minimal temperature drift. Use Value: 600 Ω dynamic impedance ensures <10 mV output shift across 10–90% load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ150A | TVS diode, 150 V standoff, 1500 W peak pulse power, higher capacitance (150 pF) | Designed for transient suppression only; not suitable for precision DC regulation | Select for surge-heavy environments where clamping speed matters more than DC accuracy |
| BZX84-C150 | SOT-23 package, 300 mW power rating, 150 V ±5%, 100 Ω ZZT at 5 mA | Limited to low-power references; cannot sustain 3.0 W continuous dissipation | Select for space-constrained logic-level references where thermal mass is not required |
Compared with SMCJ150A and BZX84-C150, the 1PMT5953B/TR7 uniquely combines 3.0 W DC power handling, 150 V precision regulation, and DO-216 thermal design-making it the only choice for high-stability, high-power Zener reference applications requiring both accuracy and ruggedness.
Availability
1PMT5953B/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronics, medical equipment, and telecom infrastructure requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5953B/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 company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line delivers high-power surface-mount voltage regulation with integrated thermal management, targeting applications demanding precision, ruggedness, and automated manufacturability in harsh environments.
FAQ
What is the Zener voltage tolerance for 1PMT5953B/TR7?
The 1PMT5953B/TR7 has a standard Zener voltage tolerance of ±5% at 150 V nominal, measured at 2.5 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 voltage regulation accuracy in feedback and reference circuits using the 1PMT5953B/TR7.
How is thermal performance managed in the 1PMT5953B/TR7 package?
The 1PMT5953B/TR7 uses Microsemi's Powermite® package with a full metallic bottom and integral locking tab that acts as a heat sink. Its junction-to-TAB1 thermal resistance is 30°C/W, enabling 3.0 W dissipation when TAB 1 is thermally anchored to sufficient copper area. This design eliminates flux entrapment and ensures repeatable thermal performance in the 1PMT5953B/TR7.
Can the 1PMT5953B/TR7 be used in automotive applications?
Yes, the 1PMT5953B/TR7 is qualified for automotive use with a junction temperature range of -55°C to +150°C and >16 kV HBM ESD rating. Its 3.0 W power handling and 150 V clamping make it suitable for load-dump protection and battery rail monitoring in 24 V systems. The 1PMT5953B/TR7 meets AEC-Q200 stress test requirements when applied within its rated electrical limits.
What is the maximum reverse leakage current for 1PMT5953B/TR7?
The 1PMT5953B/TR7 specifies a maximum reverse leakage current of 1 µA at 114 V reverse voltage (76% of nominal VZ). This low leakage supports high-impedance sensing and precision reference applications where current draw must remain below 1 µA. The value is confirmed at TL = 30°C and applies directly to the 1PMT5953B/TR7 in stable operating conditions.
Is the 1PMT5953B/TR7 compatible with standard SMT assembly processes?
Yes, the 1PMT5953B/TR7 is supplied in EIA-481 tape-and-reel format (3,000 pieces per 7-inch reel) and features a DO-216 outline optimized for automated pick-and-place. Its Powermite® package includes design features like the locking tab and flat metallic bottom to ensure consistent placement and solder joint integrity. The 1PMT5953B/TR7 is fully compatible with standard lead-free reflow profiles.
1PMT5953B/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):
- 150 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 600 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 114 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
1PMT5953B/TR7 FAQ
1.How can I place an order for 1PMT5953B/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5953B/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 1PMT5953B/TR7 reliable?
The price and inventory of 1PMT5953B/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5953B/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5953B/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5953B/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5953B/TR7?
1PMT5953B/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5953B/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 1PMT5953B/TR7?
For technical support, including 1PMT5953B/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5953B/TR7 requirements.
6.How does Aetrix verify that 1PMT5953B/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5953B/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 1PMT5953B/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5953B/TR7?
All 1PMT5953B/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5953B/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 1PMT5953B/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5953B/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5953B/TR7 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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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
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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SMAZ12-13-F
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