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RF/IF & RFID
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2N4957
Purchase
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can track your order in real time.
For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.
RFQ (Request for Quotations)It is recommended to request for quotations to get the latest
prices and inventories about the part.
Our sales will reply to
your request by email within 24 hours.
1. You'll receive an order information email in your inbox.
(Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some
extent, the sales manager is going to reconfirm the order and let you know if there
are any updates.
Shipping Cost
Shipping starts at $40, but some countries will exceed $40. For
example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The
basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and
country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
| Parameters | |
|---|---|
| Factory Lead Time | 22 Weeks |
| Mounting Type | Through Hole |
| Package / Case | TO-72-3 Metal Can |
| Operating Temperature | -65°C~200°C TJ |
| Packaging | Bulk |
| Published | 2007 |
| JESD-609 Code | e4 |
| Part Status | Discontinued |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| ECCN Code | EAR99 |
| Terminal Finish | GOLD OVER NICKEL |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Power - Max | 200mW |
| Transistor Type | PNP |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 30 @ 5mA 10V |
| Gain | 25dB |
| Voltage - Collector Emitter Breakdown (Max) | 30V |
| Current - Collector (Ic) (Max) | 30mA |
| Noise Figure (dB Typ @ f) | 3.5dB @ 450MHz |
| RoHS Status | Non-RoHS Compliant |
See Relate Datesheet