My Inquiry
My Account
Microchip Technology 1PMT5954BE3/TR7
- Part No.:
- 1PMT5954BE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5954BE3/TR7.pdf
- Description:
- DIODE ZENER 160V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,756
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5954BE3/TR7 from Microsemi is a 160 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 700 Ω dynamic impedance at 2.3 mA test current and thermal resistance of 30°C/W junction-to-TAB1 - used for precision voltage regulation and overvoltage protection in high-reliability power supplies.
For engineers reviewing the 1PMT5954BE3/TR7 datasheet, 1PMT5954BE3/TR7 pinout, 1PMT5954BE3/TR7 application, or 1PMT5954BE3/TR7 equivalent, key selection criteria include zener voltage accuracy (±5%), low reverse leakage (<1 µA at 121.6 V), ESD robustness (>16 kV HBM), and thermal performance enabled by the full metallic bottom and integral heat sink locking tab.
Technical Context
This device operates as a voltage reference and clamping element in DC power rails, leveraging its tightly controlled 160 V zener breakdown with 2.3 mA test current and 700 Ω dynamic impedance to maintain stable regulation under varying load conditions. Its 30°C/W junction-to-TAB thermal resistance enables effective heat transfer through the metallic bottom and locking tab.
The Powermite® package supports automated assembly with flux-free soldering due to its full metallic bottom, while the DO-216 mechanical outline ensures compatibility with standard SMT pick-and-place equipment. Cathode is unambiguously designated by TAB 1 per mechanical specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 160 V ±5% at IZT = 2.3 mA - defines precise clamping threshold for 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) | 700 Ω at IZT = 2.3 mA - indicates moderate regulation stiffness suitable for non-critical reference applications |
| Reverse Leakage (IR) | <1 µA at VR = 121.6 V - ensures minimal standby current in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB1 - allows direct thermal path to PCB copper or heatsink via metallic bottom |
| ESD Rating | >16 kV per Human Body Model - provides robust handling margin during board assembly and field operation |
Pinout & Package
Package: Powermite® (DO-216), surface-mount molded case 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 heat sink interface and electrical cathode connection - must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal - mounted on PCB trace with minimal thermal mass to avoid local heating |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, ensuring reliable solder joint integrity and long-term interconnect stability |
| Integral heat sink locking tab | Provides mechanical anchoring and direct thermal conduction path from junction to PCB, enabling 3.0 W operation in 3.0 mm × 2.5 mm footprint |
| ESD robustness | >16 kV HBM rating reduces risk of latent damage during handling and automated assembly |
| Automated insertion compatibility | DO-216 outline and tape-and-reel packaging (EIA-481) support high-speed SMT placement without orientation or feed issues |
Applications
| Industrial Power Supply Regulation | Telecom Line Card Protection |
|---|---|
Use Scenario: Stabilizing reference voltage in isolated DC-DC converter feedback loops operating up to 200 V input. IC Role / Device Role / Timing Role: Zener diode providing precise 160 V clamp and reference for optocoupler-based feedback network. Use Value: Maintains output regulation accuracy within ±5% across temperature and line variations, leveraging tight VZ tolerance and low drift. | Use Scenario: Protecting Ethernet PHY interfaces from lightning-induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary shunt protector clamping transients above 121.6 V before they reach sensitive PHY ICs. Use Value: Absorbs 3.0 W surge energy without degradation, supported by low ZZT and robust thermal path to ground plane. |
| Medical Equipment Overvoltage Clamp | Test & Measurement Instrument Reference |
Use Scenario: Safeguarding analog front-end inputs in portable ultrasound systems exposed to ESD events. IC Role / Device Role / Timing Role: High-voltage Zener clamp limiting input voltage to 160 V during 15 kV contact discharge. Use Value: Survives >16 kV HBM ESD pulses while maintaining sub-µA leakage below clamp threshold for signal integrity. | Use Scenario: Providing stable 160 V reference for calibration circuits in benchtop multimeters. IC Role / Device Role / Timing Role: Precision voltage reference element in divider networks requiring long-term stability. Use Value: Delivers ±5% initial accuracy and low temperature coefficient enabled by controlled junction design and metallic thermal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5375B | Same 160 V nominal rating but in DO-204AL (DO-41) through-hole package; higher ZZT (1000 Ω) and no metallic thermal base | Requires PCB hole drilling and wave soldering; unsuitable for high-density SMT designs | Select only when legacy through-hole assembly or higher surge current capability is required |
| BZX84-C160 | 160 V SOT-23 Zener; rated for 300 mW only, ZZT = 1200 Ω, no metallic thermal interface | Limited to low-power bias/reference use; cannot replace 3.0 W clamping function | Use only in space-constrained low-power applications where thermal load is <300 mW |
Compared with 1PMT5954BE3/TR7, 1N5375B offers identical voltage rating but lacks SMT compatibility and thermal efficiency, while BZX84-C160 sacrifices power handling and regulation stiffness for footprint reduction - neither matches the 3.0 W capability and 30°C/W thermal resistance of 1PMT5954BE3/TR7.
Availability
1PMT5954BE3/TR7 is available at Aetrix Electronics and suitable for industrial power supply regulation, telecom line card protection, medical equipment overvoltage clamp, and test & measurement instrument reference requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5954BE3/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 product line was designed to deliver high-power surface-mount voltage regulation in ultra-compact packages, targeting applications where thermal performance, ESD immunity, and automated assembly compatibility are critical.
FAQ
What is the zener voltage tolerance for 1PMT5954BE3/TR7?
The 1PMT5954BE3/TR7 has a standard zener voltage tolerance of ±5% at 160 V nominal, measured at 2.3 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D respectively, but the E3/TR7 variant specifies ±5%. This tolerance directly impacts regulation accuracy in voltage reference and clamp circuits using the 1PMT5954BE3/TR7.
How is thermal management achieved in the 1PMT5954BE3/TR7 package?
The 1PMT5954BE3/TR7 uses a Powermite® package with a full metallic bottom and integral heat sink locking tab to conduct heat from the silicon junction to the PCB. Its specified thermal resistance is 30°C/W junction-to-TAB1, meaning it can dissipate its full 3.0 W rating when TAB 1 is maintained at ≤60°C. Proper soldering of TAB 1 to a thermal pad is essential for achieving this performance in the 1PMT5954BE3/TR7.
What does the 'E3/TR7' suffix indicate for 1PMT5954BE3/TR7?
The 'E3/TR7' suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 units per 7-inch reel. It confirms the part is supplied in automated assembly-ready format, not bulk or ammo-pack. This packaging format ensures consistent feeding in SMT pick-and-place machines and is standard for production use of the 1PMT5954BE3/TR7.
Can 1PMT5954BE3/TR7 be used in place of through-hole Zeners like 1N5375B?
The 1PMT5954BE3/TR7 shares the same 160 V zener voltage as 1N5375B but is not a drop-in replacement due to its surface-mount Powermite® package versus DO-41 through-hole. While electrically comparable, PCB layout, assembly process, and thermal mounting differ significantly. Substitution requires redesign for SMT pads and thermal relief - the 1PMT5954BE3/TR7 is not intended as a direct physical replacement for 1N5375B.
What is the maximum reverse voltage that ensures leakage stays below 1 µA for 1PMT5954BE3/TR7?
Per the datasheet table, the 1PMT5954BE3/TR7 guarantees reverse leakage IR ≤ 1 µA at VR = 121.6 V. This voltage is 76% of its nominal 160 V zener voltage and represents the maximum reverse bias that maintains ultra-low leakage. Operating above this level risks exponential increase in leakage current, so system designs using the 1PMT5954BE3/TR7 should respect 121.6 V as the safe non-conducting limit.
1PMT5954BE3/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):
- 160 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 121.6 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
1PMT5954BE3/TR7 FAQ
1.How can I place an order for 1PMT5954BE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5954BE3/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 1PMT5954BE3/TR7 reliable?
The price and inventory of 1PMT5954BE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5954BE3/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5954BE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5954BE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5954BE3/TR7?
1PMT5954BE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5954BE3/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 1PMT5954BE3/TR7?
For technical support, including 1PMT5954BE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5954BE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5954BE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5954BE3/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 1PMT5954BE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5954BE3/TR7?
All 1PMT5954BE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5954BE3/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 1PMT5954BE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5954BE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5954BE3/TR7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
